ESMT EngageSmart Inc

Exhibit 3.1

AMENDED AND RESTATED

CERTIFICATE OF INCORPORATION

OF

ENGAGESMART, INC.

ARTICLE ONE

The name of the corporation is EngageSmart, Inc. (the “Corporation”).

ARTICLE TWO

The address of the Corporation’s registered office in the State of Delaware is 1209 Orange Street, in the City of Wilmington, County of New Castle, Delaware 19801. The name of its registered agent at such address is The Corporation Trust Company.

ARTICLE THREE

The nature of the business or purposes to be conducted or promoted is to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of the State of Delaware.

ARTICLE FOUR

The total number of shares of stock which the Corporation has authority to issue is one thousand (1,000) shares of common stock, with a par value of $0.001 per share.

ARTICLE FIVE

The Corporation is to have perpetual existence.

ARTICLE SIX

In furtherance and not in limitation of the powers conferred by statute, the board of directors of the Corporation is expressly authorized to make, alter or repeal the by-laws of the Corporation.

ARTICLE SEVEN

Meetings of stockholders may be held within or without the State of Delaware, as the by-laws of the Corporation may provide. The books of the Corporation may be kept outside the State of Delaware at such place or places as may be designated from time to time by the board of directors or in the by-laws of the Corporation. Election of directors need not be by written ballot unless the by-laws of the Corporation so provide.

ARTICLE EIGHT

No director of the Corporation shall be personally liable to the Corporation or any of its stockholders for monetary damages for any breach of fiduciary duty as a director except to the extent such exemption from liability or limitation thereof is not permitted under the General Corporation Law of the State of Delaware as the same exists or may hereafter be amended (but, in the case of any such amendment, only to the extent such amendment permits the Corporation to provide broader exculpation than permitted prior thereto). No amendment to or repeal of this Article EIGHT shall apply to or have any adverse effect on the liability or alleged liability of any director of the Corporation for or with respect to any acts or omissions of such director occurring prior to such amendment or repeal. If the General Corporation Law of the State of Delaware is subsequently amended to authorize the further elimination or limitation of the liability of directors, then the liability of a director of the Corporation shall be eliminated or limited to the fullest extent authorized by the General Corporation Law of the State of Delaware as so amended.

ARTICLE NINE

The Corporation expressly elects not to be governed by Section 203 of the General Corporation Law of the State of Delaware.

ARTICLE TEN

The Corporation reserves the right to amend, alter, change or repeal any provision contained in this certificate of incorporation in the manner now or hereafter prescribed herein and by the laws of the State of Delaware, and all rights conferred upon stockholders herein are granted subject to this reservation.

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Exhibit 3.2

AMENDED AND RESTATED BY-LAWS

OF

ENGAGESMART, INC.

A Delaware corporation

(Adopted as of January 26, 2024)

ARTICLE I

OFFICES

Section 1 Registered Office. The registered office of EngageSmart, Inc. (the “Corporation”) in the State of Delaware is 1209 Orange Street, in the City of Wilmington, County of New Castle, Delaware 19801. The name of the Corporation’s registered agent at such address is The Corporation Trust Company. The registered office and/or registered agent of the Corporation may be changed from time to time by action of the board of directors.

Section 2 Other Offices. The Corporation may also have offices at such other places, both within and without the State of Delaware, as the board of directors may from time to time determine or the business of the Corporation may require.

ARTICLE II

MEETINGS OF STOCKHOLDERS

Section 1 Annual Meetings. An annual meeting of the stockholders shall be held for the purpose of electing directors and conducting such other proper business as may come before the meeting. The date, time and place, if any, and/or the means of remote communication, of the annual meeting shall be determined by the board of directors of the Corporation. No annual meeting of stockholders need be held if not required by the Corporation’s certificate of incorporation or by the General Corporation Law of the State of Delaware.

Section 2 Special Meetings. Special meetings of stockholders may be called for any purpose (including, without limitation, the filling of board of director vacancies and newly created directorships) and may be held at such date, time and place, if any, and/or by means of remote communication, as shall be stated in a written notice of meeting or in a duly executed waiver of notice thereof. Such meetings may be called at any time by the board of directors or the president and shall be called by the president upon the written request of holders of shares entitled to cast not less than a majority of the votes at the meeting, which written request shall state the purpose or purposes of the meeting and shall be delivered to the president. The date, time and place, if any, and/or remote communication, of any special meeting of stockholders shall be determined by the board of directors of the Corporation.

Section 3 Place of Meetings. The board of directors may designate any place, either within or without the State of Delaware, and/or by means of remote communication, as the place of meeting for any annual meeting or for any special meeting called by the board of directors. If no designation is made, or if a special meeting be otherwise called, the place of meeting shall be the principal executive office of the Corporation.

Section 4 Notice. Whenever stockholders are required or permitted to take any action at a meeting, written or printed notice stating the place, if any, date and hour of the meeting, the means of remote communications, if any, by which stockholders and proxy holders may be deemed to be present in person and vote at such meeting, the record date for determining the stockholders entitled to vote at the meeting, if such date is different from the record date for determining stockholders entitled to notice of the meeting, and, in the case of special meetings, the purpose or purposes, of such meeting, shall be given to each stockholder entitled to vote at such meeting not less than ten (10) nor more than sixty (60) days before the date of the meeting. Without limiting the manner by which notice otherwise may be given effectively to stockholders, but subject to the General Corporation Law of the State of Delaware, any notice to stockholders given by the Corporation under any provision of the General Corporation Law of the State of Delaware, the Corporation’s certificate of incorporation, or the by-laws shall be effective if given by a form of electronic transmission consented to by the stockholder to whom the notice is given. Any such consent shall be revocable by the stockholder by written notice or electronic transmission to the Corporation. The Corporation may give a notice by electronic mail in accordance with this section without obtaining consent. Notice shall be deemed given (a) if by facsimile telecommunication, when directed to a number at which the stockholder has consented to receive notice; (b) if by a posting on an electronic network together with separate notice to the stockholder of such specific posting, upon the later of (1) such posting and (2) the giving of such separate notice; and (c) if by any other form of electronic transmission, when directed to the stockholder. Notwithstanding the foregoing, a notice may not be given by an electronic transmission from and after the time that (i) the Corporation is unable to deliver by such electronic transmission two (2) consecutive notices given by the Corporation; and (ii) such inability becomes known to the secretary or an assistant secretary of the Corporation or to the transfer agent, or other person responsible for the giving of notice, provided, however, the inadvertent failure to discover such inability shall not invalidate any meeting or other action.

Section 5 Stockholders List. The officer who has charge of the stock ledger of the Corporation shall prepare, no later than ten (10) days before every meeting of the stockholders, a complete list of the stockholders entitled to vote at such meeting; provided, however, if the record date for determining the stokcholders entitled to vote is less than ten (10) days before the meeting date, the list shall reflect the stockholder entitled to vote as of the tenth day before the meeting date arranged in alphabetical order, showing the address of each stockholder and the number of shares registered in the name of each stockholder. The Corporation shall not be required to include electronic mail addresses or other electronic contact information on such list. Such list shall be open to the examination of any stockholder, for any purpose germane to the meeting, for a period of at least ten (10) days prior to the meeting: (a) on a reasonably accessible electronic network, provided that the information required to gain access to such list is provided with the notice of the meeting, and/or (b) during ordinary business hours, at the principal place of business of the Corporation. In the event that the Corporation determines to make the list available on an electronic network, the Corporation may take reasonable steps to ensure that such information is available only to stockholders of the Corporation.

Section 6 Quorum. The holders of a majority of the issued and outstanding shares of capital stock, entitled to vote thereon, present in person or represented by proxy, shall constitute a quorum at all meetings of the stockholders, except as otherwise provided by statute, or by the Corporation’s certificate of incorporation. If a quorum is not present, the holders of a majority of the shares present in person or represented by proxy at the meeting, and entitled to vote at the meeting, may adjourn the meeting to another time and/or place.

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Section 7 Adjourned Meetings. When a meeting is adjourned to another time or place, (including an adjournment taken to address a technical failure to convene or continue a meeting using remote communication), notice need not be given of the adjourned meeting if the time, place, if any, thereof, and the means of remote communications, if any, by which stockholders and proxy holders may be deemed to be present in person and vote at such adjourned meeting are (i) announced at the meeting at which the adjournment is taken, (ii) displayed, during the time scheduled for the meeting, on the same electronic network used to enable stockholders and proxy holders to participate in the meeting by means of remote communication or (iii) set forth in the notice of meeting given in accordance with the General Corporation Law of the State of Delaware. At the adjourned meeting the Corporation may transact any business which might have been transacted at the original meeting. If the adjournment is for more than thirty (30) days, a notice of the adjourned meeting shall be given to each stockholder of record entitled to vote at the meeting. If after the adjournment a new record date for stockholders entitled to vote is fixed for the adjourned meeting, the board of directors shall fix a new record date for notice of such adjourned meeting in accordance with the General Corporation Law of the State of Delaware, and shall give notice of the adjourned meeting to each stockholder of record entitled to vote at such adjourned meeting as of the record date fixed for notice of such adjourned meeting.

Section 8 Vote Required. When a quorum is present, the affirmative vote of the majority of shares present in person or represented by proxy at the meeting and entitled to vote on the subject matter shall be the act of the stockholders, unless the question is one upon which by express provisions of an applicable law, the Corporation’s certificate of incorporation or these by-laws (including Article III, Section 2) a different vote is required, in which case such express provision shall govern and control the decision of such question.

Section 9 Voting Rights. Except as otherwise provided by the General Corporation Law of the State of Delaware or by the Corporation’s certificate of incorporation or any amendments thereto and subject to Section 3 of Article VI hereof, every stockholder shall at every meeting of the stockholders be entitled to one vote in person or by proxy for each share of common stock held by such stockholder.

Section 10 Proxies. Each stockholder entitled to vote at a meeting of stockholders or to express consent or dissent to corporate action in writing without a meeting may authorize another person or persons to act for such stockholder by proxy, but no such proxy shall be voted or acted upon after three years from its date, unless the proxy provides for a longer period. A duly executed proxy shall be irrevocable if it states that it is irrevocable and if, and only as long as, it is coupled with an interest sufficient in law to support an irrevocable power. A proxy may be made irrevocable regardless of whether the interest with which it is coupled is an interest in the stock itself or an interest in the Corporation generally. Any proxy is suspended when the person executing the proxy is present at a meeting of stockholders and elects to vote, except that when such proxy is coupled with an interest and the fact of the interest appears on the face of the proxy, the agent named in the proxy shall have all voting and other rights referred to in the proxy, notwithstanding the presence of the person executing the proxy. At each meeting of the stockholders, and before any voting commences, all proxies filed at or before the meeting shall be submitted to and examined by the secretary or a person designated by the secretary, and no shares may be represented or voted under a proxy that has been found to be invalid or irregular.

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Section 11 Action by Written Consent. Unless otherwise provided in the Corporation’s certificate of incorporation, any action required to be taken at any annual or special meeting of stockholders of the Corporation, or any action which may be taken at any annual or special meeting of such stockholders, may be taken without a meeting, without prior notice and without a vote, if a consent or consents, setting forth the action so taken, shall be signed by the holders of outstanding stock having not less than the minimum number of votes that would be necessary to authorize or take such action at a meeting at which all shares entitled to vote thereon were present and voted and shall be delivered to the Corporation in the manner required by the General Corporation Law of the State of Delaware. A consent must be set forth in writing or in an electronic transmission. No consent shall be effective to take the corporate action referred to therein unless consents signed by a sufficient number of holders or members to take action are delivered to the Corporation within sixty (60) days of the first date on which a consent is so delivered to the Corporation. Any person executing a consent may provide, whether through instruction to an agent or otherwise, that such consent will be effective at a future time, including a time determined upon the happening of an event, occurring not later than sixty (60) days after such instruction is given or such provision is made, if evidence of the instruction or provision is provided to the Corporation. If the person is not a stockholder or member of record when the consent is executed, the consent shall not be valid unless the person is a stockholder or member of record as of the record date for determining stockholders or members entitled to consent to the action. Unless otherwise provided, any such consent shall be revocable prior to its becoming effective. The consent shall be delivered (i) to the principal place of business of the Corporation, (ii) to an officer or agent of the Corporation having custody of the book in which proceedings of meetings of stockholders or members are recorded; (iii) to the registered office of the Corporation in the State of Delaware by hand or by certified or registered mail, return receipt requested; or (iv) subject to the next sentence, in accordance with the General Corporation Law of the State of Delaware, to an information processing system, if any, designated by the Corporation for receiving such consents. In the case of delivery pursuant to the foregoing clause (iv), such consent must set forth or be delivered with information that enables the Corporation to determine the date of delivery of such consent and the identity of the person giving such consent. Any copy, facsimile or other reliable reproduction of a consent in writing may be substituted or used in lieu of the original writing for any and all purposes for which the original writing could be used, provided that such copy, facsimile or other reproduction shall be a complete reproduction of the entire original writing. A consent may be documented and signed in accordance with the General Corporation Law of the State of Delaware, and when so documented or signed shall be deemed to be in writing; provided that if such consent is delivered pursuant to clause (i), (ii) or (iii) of this Section 11 of this Article II, such consent must be reproduced and delivered in paper form. Prompt notice of the taking of the corporate action without a meeting by less than unanimous consent shall be given to those stockholders or members who have not consented and who, if the action had been taken at a meeting, would have been entitled to notice of the meeting if the record date for notice of such meeting had been the date that consents signed by a sufficient number of holders or members to take the action were delivered to the Corporation.

ARTICLE III

DIRECTORS

Section 1 General Powers. The business and affairs of the Corporation shall be managed by or under the direction of the board of directors.

Section 2 Number, Election and Term of Office. The number of directors which shall constitute the board of directors shall be six (6). Thereafter, the number of directors shall be established from time to time by resolution of the board of directors or the stockholders. The directors shall be elected by a plurality of the votes of the shares present in person or represented by proxy at the meeting and entitled to vote in the election of directors. The directors shall be elected in this manner at the annual meeting of the stockholders, except as otherwise provided in Section 4 of this Article III. Each director elected shall hold office until a successor is duly elected and qualified or until his or her earlier death, resignation or removal as hereinafter provided.

Section 3 Removal and Resignation. Any director or the entire board of directors may be removed at any time, with or without cause, by the holders of a majority of the shares then entitled to vote on the election of directors. Whenever the holders of any class or series are entitled to elect one (1) or more directors by the provisions of the Corporation’s certificate of incorporation, the provisions of this section shall apply, in respect of the removal without cause of a director or directors so elected, to the vote of the holders of the outstanding shares of that class or series and not to the vote of the outstanding shares as a whole. Any director may resign at any time upon notice given in writing or by electronic transmission to the Corporation.

Section 4 Vacancies. Except as otherwise provided in the Corporation’s certificate of incorporation, board of director vacancies and newly created directorships resulting from any increase in the authorized number of directors may be filled by a majority of the directors then in office, though less than a quorum, or by a sole remaining director. Each director so chosen shall hold office until a successor is duly elected and qualified or until his or her earlier death, resignation or removal as herein provided.

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Section 5 Annual Meetings. The annual meeting of each newly elected board of directors shall be held without notice (other than notice under these by-laws) immediately after, and at the same place, if any, as the annual meeting of stockholders.

Section 6 Other Meetings and Notice. Regular meetings, other than the annual meeting, of the board of directors may be held without notice at such time and at such place, if any, as shall from time to time be determined by resolution of the board of directors and promptly communicated to all directors then in office. Special meetings of the board of directors may be called by or at the request of the president or any director on at least twenty-four (24) hours notice to each director, either personally, by telephone, by mail or by electronic transmission.

Section 7 Quorum, Required Vote and Adjournment. A majority of the total number of directors then in office authorized shall constitute a quorum for the transaction of business. The vote of a majority of directors present at a meeting at which a quorum is present shall be the act of the board of directors. If a quorum shall not be present at any meeting of the board of directors, the directors present thereat may adjourn the meeting from time to time, without notice other than announcement at the meeting, until a quorum shall be present. Except as otherwise required by the Corporation’s certificate of incorporation, each director shall be entitled to one vote on exactly the matter presented to the board of directors for approval.

Section 8 Committees. The board of directors may, by resolution passed by a majority of the whole board, designate one or more committees, each committee to consist of one or more of the directors of the Corporation, which to the extent provided in such resolution or these by-laws shall have and may exercise the powers of the board of directors in the management and affairs of the Corporation, except as otherwise limited by applicable law. The board of directors may designate one or more directors as alternate members of any committee, who may replace any absent or disqualified member at any meeting of such committee. Such committee or committees shall have such name or names as may be determined from time to time by resolution adopted by the board of directors. Each committee shall keep regular minutes of its meetings and report the same to the board of directors when required.

Section 9 Committee Rules. Each committee of the board of directors may fix its own rules of procedure and shall hold its meetings as provided by such rules, except as may otherwise be provided by a resolution of the board of directors designating such committee. Unless otherwise provided in such a resolution, the presence of a majority of the members of the committee then in office shall be necessary to constitute a quorum. In the event that a member and such member’s alternate, if alternates are designated by the board of directors as provided in Section 8 of this Article III, of such committee is or are absent or disqualified, the member or members thereof present at any meeting and not disqualified from voting, whether or not such member or members constitute a quorum, may unanimously appoint another member of the board of directors to act at the meeting in place of any such absent or disqualified member.

Section 10 Communications Equipment. Members of the board of directors or any committee thereof may participate in and act at any meeting of the board of directors or committee thereof by means of conference telephone or other communications equipment by means of which all persons participating in the meeting can hear each other, and participation in the meeting pursuant to this section shall constitute presence in person at the meeting.

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Section 11 Waiver of Notice and Presumption of Assent. Any member of the board of directors or any committee thereof who is present at a meeting shall be conclusively presumed to have waived notice of such meeting, except when such member attends for the express purpose of objecting at the beginning of the meeting to the transaction of any business because the meeting is not lawfully called or convened. Such member shall be conclusively presumed to have assented to any action taken unless his or her dissent shall be entered in the minutes of the meeting or unless his or her written dissent to such action shall be filed with the person acting as the secretary of the meeting before the adjournment thereof or shall be forwarded by registered mail to the secretary of the Corporation immediately after the adjournment of the meeting. Such right to dissent shall not apply to any member who voted in favor of such action.

Section 12 Action by Written Consent. Unless otherwise restricted by the Corporation’s certificate of incorporation, any action required or permitted to be taken at any meeting of the board of directors, or of any committee thereof, may be taken without a meeting if all members of the board of directors or committee, as the case may be, consent thereto in writing or by electronic transmission, and the writing or writings or electronic transmission or transmissions are filed with the minutes of proceedings of the board of directors, or committee. Such filing shall be in paper form if the minutes are maintained in paper form and shall be in electronic form if the minutes are maintained in electronic form.

ARTICLE IV

OFFICERS

Section 1 Number. The officers of the Corporation shall be elected by the board of directors and may consist of a chairman of the board, a chief executive officer, one or more vice presidents, a chief financial officer, a treasurer, a secretary, and such other officers and assistant officers as may be deemed necessary or desirable by the board of directors. Any number of offices may be held by the same person. In its discretion, the board of directors may choose not to fill any office for any period as it may deem advisable.

Section 2 Election and Term of Office. The officers of the Corporation shall be elected annually by the board of directors at its first meeting held after each annual meeting of stockholders or as soon thereafter as conveniently may be. Vacancies may be filled or new offices created and filled at any meeting of the board of directors. Each officer shall hold office until a successor is duly elected and qualified or until his or her earlier death, resignation or removal as hereinafter provided.

Section 3 Removal. Any officer or agent elected by the board of directors may be removed by the board of directors whenever in its judgment the best interests of the Corporation would be served thereby, but such removal shall be without prejudice to the contract rights, if any, of the person so removed.

Section 4 Vacancies. Any vacancy occurring in any office because of death, resignation, removal, disqualification or otherwise, may be filled by the board of directors for the unexpired portion of the term by the board of directors then in office.

Section 5 Compensation. Compensation of all officers shall be fixed by the board of directors, and no officer shall be prevented from receiving such compensation by virtue of his or her also being a director of the Corporation.

Section 6 Chairman of the Board. Subject to the provisions of these Bylaws and the direction of the board of directors, he or she shall perform all duties and have all powers which are commonly incident to the position of chairman of the board or which are delegated to him or her by the board of directors, preside at all meetings of the stockholders and board of directors at which he or she is present and have such powers and perform such duties as the board of directors may from time to time prescribe.

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Section 7 The Chief Executive Officer. The chief executive officer shall have the powers and perform the duties incident to that position. Subject to the powers of the board of directors, the chief executive officer shall be in the general and active charge of the entire business and affairs of the Corporation, and shall be its chief policy making officer. The chief executive officer shall have such other powers and perform such other duties as may be prescribed by the board of directors or provided in these by-laws. The chief executive officer is authorized to execute bonds, mortgages and other contracts requiring a seal, under the seal of the Corporation, except where required or permitted by law to be otherwise signed and executed and except where the signing and execution thereof shall be expressly delegated by the board of directors to some other officer or agent of the Corporation. Whenever the president is unable to serve, by reason of sickness, absence or otherwise, the chief executive officer shall perform all the duties and responsibilities and exercise all the powers of the president.

Section 8 Vice-Presidents. The vice-president, or if there shall be more than one, the vice-presidents in the order determined by the board of directors, shall, in the absence or disability of the president, act with all of the powers and be subject to all the restrictions of the president. The vice-presidents shall also perform such other duties and have such other powers as the board of directors, the president or these by-laws may, from time to time, prescribe.

Section 9 The Chief Financial Officer. The chief financial officer shall have the custody of the corporate funds and securities; shall keep full and accurate accounts of receipts and disbursements in books belonging to the corporation as shall be necessary or desirable in accordance with applicable law or generally accepted accounting principles; shall deposit all monies and other valuable effects in the name and to the credit of the Corporation as may be ordered by the chairman of the board or the board of directors; shall receive, and give receipts for, moneys due and payable to the Corporation from any source whatsoever; shall cause the funds of the Corporation to be disbursed when such disbursements have been duly authorized, taking proper vouchers for such disbursements; and shall render to the board of directors, at its regular meeting or when the board of directors so requires, an account of the financial condition and operations of the Corporation; shall have such powers and perform such duties as the board of directors, the chairman of the board, the chief executive officer, the president or these by-laws may, from time to time, prescribe.

Section 10 The Treasurer. The treasurer, if any, shall in the absence or disability of the chief financial officer, perform the duties and exercise the powers of the chief financial officer, subject to the power of the board of directors. The treasurer, if any, shall perform such other duties and have such other powers as the board of directors, the chairman of the board, the chief executive officer, the President or these by-laws may, from time to time, prescribe.

Section 11 Secretary. The secretary shall attend all meetings of the board of directors, all meetings of the committees thereof and all meetings of the stockholders and record all the proceedings of the meetings in a book or books to be kept for that purpose. Under the president’s supervision, the secretary shall give, or cause to be given, all notices required to be given by these by-laws or by applicable law, shall have such powers and perform such duties as the board of directors, the president or these by-laws may, from time to time, prescribe, and shall have custody of the corporate seal of the Corporation. The secretary shall have authority to affix the corporate seal to any instrument requiring it and when so affixed, it may be attested by his or her signature. The board of directors may give general authority to any other officer to affix the seal of the Corporation and to attest the affixing by his or her signature.

Section 12 Other Officers, Assistant Officers and Agents. Officers, assistant officers and agents, if any, other than those whose duties are provided for in these by-laws, shall have such authority and perform such duties as may from time to time be prescribed by resolution of the board of directors.

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Section 13 Absence or Disability of Officers. In the case of the absence or disability of any officer of the Corporation and of any person hereby authorized to act in such officer’s place during such officer’s absence or disability, the board of directors may by resolution delegate the powers and duties of such officer to any other officer or to any director, or to any other person whom it may select.

ARTICLE V

INDEMNIFICATION OF OFFICERS, DIRECTORS AND OTHERS

Section 1 Right to Indemnification and Advancement. Each person who was or is made a party or is threatened to be made a party to or is otherwise involved (including involvement, without limitation, as a witness) in any actual or threatened action, suit or proceeding, whether civil, criminal, administrative or investigative (a “proceeding”), by reason of the fact that he or she is or was a director or officer (or serving in any similar capacity, including as a general partner) of the Corporation or any predecessor thereto or, while a director or officer (or serving in any similar capacity, including as a general partner) of the Corporation or any predecessor thereto, is or was serving at the request of the Corporation or any predecessor thereto as a director, officer, employee or agent of another corporation or of a partnership, joint venture, trust or other enterprise, including service with respect to an employee benefit plan (an “indemnitee”), whether the basis of such proceeding is alleged action in an official capacity as a director or officer (or any similar capacity) or in any other capacity while serving as a director or officer (or any similar capacity), shall be indemnified and held harmless by the Corporation to the fullest extent authorized by the General Corporation Law of the State of Delaware, as the same exists or may hereafter be amended (but, in the case of any such amendment, only to the extent that such amendment permits the Corporation to provide broader indemnification rights than permitted prior thereto), against all expense, liability and loss (including attorneys’ fees and related disbursements, judgments, fines, excise taxes or penalties under the Employee Retirement Income Security Act of 1974, as amended from time to time (“ERISA”) and any other penalties and amounts paid or to be paid in settlement) reasonably incurred or suffered by such indemnitee in connection therewith and such indemnification shall continue as to an indemnitee who has ceased to be a director, officer, employee or agent and shall inure to the benefit of the indemnitee’s heirs, executors and administrators; provided, however, that, except as provided in this Section 2 of this ARTICLE V with respect to proceedings to enforce rights to indemnification and advance of expenses (as defined below), the Corporation shall indemnify any such indemnitee in connection with a proceeding (or part thereof) initiated by such indemnitee only if such proceeding (or part thereof) was authorized in the specific case by the board of directors of the Corporation. The rights to indemnification and advance of expenses conferred in this Section 1 of ARTICLE V shall be contract rights. In addition to the right to indemnification conferred herein, an indemnitee shall also have the right, to the fullest extent not prohibited by law, to be paid by the Corporation the expenses incurred in defending any such proceeding in advance of its final disposition (an “advance of expenses”); provided, however, that if and to the extent that the General Corporation Law of the State of Delaware requires, an advance of expenses shall be made only upon delivery to the Corporation of an undertaking (an “undertaking”), by or on behalf of such indemnitee, to repay all amounts so advanced if it shall ultimately be determined by final judicial decision from which there is no further right to appeal (a “final adjudication”) that such indemnitee is not entitled to be indemnified for such expenses under this Section 1 or otherwise. The Corporation may also, by action of its board of directors, provide indemnification and advancement to employees and agents of the Corporation. Any reference to an officer of the Corporation in this ARTICLE V shall be deemed to refer exclusively to the chairman of the board, chief executive officer, president, secretary and treasurer of the Corporation appointed pursuant to ARTICLE IV, and to any vice president, assistant secretary, assistant treasurer or other officer of the Corporation appointed by the board of directors pursuant to ARTICLE IV of these by-laws, and any reference to an officer of any other enterprise shall be deemed to refer exclusively to an officer appointed by the board of directors or equivalent governing body of such other entity pursuant to the certificate of incorporation and bylaws or equivalent organizational documents of such other enterprise. The fact that any person who is or was an employee of the Corporation or an employee of any other enterprise has been given or has used the title of “Vice President” or any other title that could be construed to suggest or imply that such person is or may be an officer of the Corporation or of such other enterprise shall not result in such person being constituted as, or being deemed to be, an officer of the Corporation or of such other enterprise for purposes of this ARTICLE V unless such person’s appointment to such office was approved by the board of directors pursuant to ARTICLE IV.

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Section 2 Procedure for Indemnification. Any claim for indemnification or advance of expenses by an indemnitee under this Section 2 of ARTICLE V shall be made promptly, and in any event within forty-five days (or, in the case of an advance of expenses, twenty days, provided that the director or officer has delivered the undertaking contemplated by Section 1 of this ARTICLE V if required), upon the written request of the indemnitee. If the Corporation denies a written request for indemnification or advance of expenses, in whole or in part, or if payment in full pursuant to such request is not made within forty-five (45) days (or, in the case of an advance of expenses, twenty days, provided that the indemnitee has delivered the undertaking contemplated by Section 1 of this ARTICLE V if required), the right to indemnification or advances as granted by this ARTICLE V shall be enforceable by the indemnitee in any court of competent jurisdiction. Such person’s costs and expenses incurred in connection with successfully establishing his or her right to indemnification or advance of expenses, in whole or in part, in any such action shall also be indemnified by the Corporation to the fullest extent permitted by applicable law. It shall be a defense to any such action (other than an action brought to enforce a claim for the advance of expenses where the undertaking required pursuant to Section 1 of this ARTICLE V, if any, has been tendered to the Corporation) that the claimant has not met the applicable standard of conduct which make it permissible under the General Corporation Law of the State of Delaware for the Corporation to indemnify the claimant for the amount claimed, but the burden of proof shall be on the Corporation to the fullest extent permitted by law. Neither the failure of the Corporation (including its board of directors, a committee thereof, independent legal counsel or its stockholders) to have made a determination prior to the commencement of such action that indemnification of the claimant is proper in the circumstances because he or she has met the applicable standard of conduct set forth in the General Corporation Law of the State of Delaware, nor an actual determination by the Corporation (including its board of directors, independent legal counsel or its stockholders) that the claimant has not met such applicable standard of conduct, shall be a defense to the action or create a presumption that the claimant has not met the applicable standard of conduct.

Section 3 Insurance. The Corporation may purchase and maintain insurance on its own behalf and on behalf of any person who is or was or has agreed to become a director, officer, employee or agent of the Corporation or is or was serving at the request of the Corporation as a director, officer, partner, member, trustee, administrator, employee or agent of another corporation, partnership, joint venture, limited liability company, trust or other enterprise against any expense, liability or loss asserted against him or her and incurred by him or her in any such capacity, or arising out of his or her status as such, whether or not the Corporation would have the power to indemnify such person against such expenses, liability or loss under the General Corporation Law of the State of Delaware.

Section 4 Service for Subsidiaries. Any person serving as a director, officer, partner, member, trustee, administrator, employee or agent of another corporation, partnership, limited liability company, joint venture, trust or other enterprise, at least fifty percent (50%) of whose equity interests are owned by the Corporation (a “subsidiary” for purposes of this ARTICLE V) shall be conclusively presumed to be serving in such capacity at the request of the Corporation.

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Section 5 Reliance. Persons who after the date of the adoption of this provision become or remain directors or officers of the Corporation or who, while a director or officer of the Corporation, become or remain a director, officer, employee or agent of a subsidiary, shall be conclusively presumed to have relied on the rights to indemnity, advance of expenses and other rights contained in this ARTICLE V in entering into or continuing such service. To the fullest extent permitted by law, the rights to indemnification and to the advance of expenses conferred in this ARTICLE V shall apply to claims made against an indemnitee arising out of acts or omissions which occurred or occur both prior and subsequent to the adoption hereof. Any amendment, alteration or repeal of this ARTICLE V that adversely affects any right of an indemnitee or its successors shall be prospective only and shall not limit, eliminate, or impair any such right with respect to any proceeding involving any occurrence or alleged occurrence of any action or omission to act that took place prior to such amendment or repeal.

Section 6 Non-Exclusivity of Rights; Continuation of Rights of Indemnification. The rights to indemnification and to the advance of expenses conferred in this ARTICLE V shall not be exclusive of any other right which any person may have or hereafter acquire under the Certificate of Incorporation or under any statute, by-law, agreement, vote of stockholders or disinterested directors or otherwise. All rights to indemnification under this ARTICLE V shall be deemed to be a contract between the Corporation and each director or officer of the Corporation who serves or served in such capacity at any time while this ARTICLE V is in effect. Any repeal or modification of this ARTICLE V or repeal or modification of relevant provisions of the General Corporation Law of the State of Delaware or any other applicable laws shall not in any way diminish any rights to indemnification and advancement of expenses of such director or officer or the obligations of the Corporation arising hereunder with respect to any proceeding arising out of, or relating to, any actions, transactions or facts occurring prior to the final adoption of such repeal or modification.

Section 7 Merger or Consolidation. For purposes of this ARTICLE V, references to “the Corporation” shall include, in addition to the resulting corporation, any constituent corporation (including any constituent of a constituent) absorbed in a consolidation or merger which, if its separate existence had continued, would have had power and authority to indemnify its directors, officers, and employees or agents, so that any person who is or was a director, officer, employee or agent of such constituent Corporation, or is or was serving at the request of such constituent Corporation as a director, officer, employee or agent of another Corporation, partnership, joint venture, trust or other enterprise, shall stand in the same position under this ARTICLE V with respect to the resulting or surviving Corporation as he or she would have with respect to such constituent Corporation if its separate existence had continued.

Section 8 Savings Clause. To the fullest extent permitted by law, if this ARTICLE V or any portion hereof shall be invalidated on any ground by any court of competent jurisdiction, then the Corporation shall nevertheless indemnify and advance expenses to each person entitled to indemnification under Section 1 of this ARTICLE V as to all expense, liability and loss (including attorneys’ fees and related disbursements, judgments, fines, ERISA excise taxes and penalties and any other penalties and amounts paid or to be paid in settlement) actually and reasonably incurred or suffered by such person and for which indemnification and advancement of expenses is available to such person pursuant to this ARTICLE V to the fullest extent permitted by any applicable portion of this ARTICLE V that shall not have been invalidated.

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ARTICLE VI

CERTIFICATES OF STOCK

Section 1 Form. Shares of stock of the Corporation may be certificated or uncertificated, as provided under the General Corporation Law of the State of Delaware. If certificated, every holder of stock in the Corporation shall be entitled to have a certificate, signed by, or in the name of the Corporation by any two (2) duly appointed officers of the Corporation, certifying the number of shares owned by such holder in the Corporation. If such a certificate is countersigned (a) by a transfer agent or an assistant transfer agent other than the Corporation or its employee or (b) by a registrar, other than the Corporation or its employee, the signature of any two (2) duly appointed officers of the Corporation may be facsimiles. In case any officer or officers who have signed, or whose facsimile signature or signatures have been placed upon, any such certificate or certificates shall cease to be such officer or officers of the Corporation whether because of death, resignation or otherwise before such certificate or certificates have been delivered by the Corporation, such certificate or certificates may nevertheless be issued and delivered as though the person or persons who signed such certificate or certificates or whose facsimile signature or signatures have been used thereon had not ceased to be such officer or officers of the Corporation. All certificates for shares shall be consecutively numbered or otherwise identified. The name of the person to whom the shares represented thereby are issued, with the number of shares and date of issue, shall be entered on the books of the Corporation. Shares of stock of the Corporation shall only be transferred on the books of the Corporation by the holder of record thereof or by such holder’s attorney duly authorized in writing, upon surrender to the Corporation of the certificate or certificates for such shares endorsed by the appropriate person or persons, with such evidence of the authenticity of such endorsement, transfer, authorization, and other matters as the Corporation may reasonably require, and accompanied by all necessary stock transfer stamps. In that event, it shall be the duty of the Corporation to issue a new certificate to the person entitled thereto, cancel the old certificate or certificates, and record the transaction on its books. The board of directors may appoint a bank or trust company organized under the laws of the United States or any state thereof to act as its transfer agent or registrar, or both in connection with the transfer of any class or series of securities of the Corporation.

Section 2 Lost Certificates. The board of directors may direct a new certificate or certificates to be issued in place of any certificate or certificates previously issued by the Corporation alleged to have been lost, stolen, or destroyed, upon the making of an affidavit of that fact by the person claiming the certificate of stock to be lost, stolen, or destroyed. When authorizing such issue of a new certificate or certificates, the board of directors may, in its discretion and as a condition precedent to the issuance thereof, require the owner of such lost, stolen, or destroyed certificate or certificates, or his or her legal representative, to give the Corporation a bond sufficient to indemnify the Corporation against any claim that may be made against the Corporation on account of the loss, theft or destruction of any such certificate or the issuance of such new certificate.

Section 3 Fixing a Record Date for Stockholder Meetings. In order that the Corporation may determine the stockholders entitled to notice of or to vote at any meeting of stockholders or any adjournment thereof, the board of directors may fix a record date, which record date shall not precede the date upon which the resolution fixing the record date is adopted by the board of directors, and which record date shall not be more than sixty (60) nor less than ten (10) days before the date of such meeting. If no record date is fixed by the board of directors, the record date for determining stockholders entitled to notice of or to vote at a meeting of stockholders shall be the close of business on the next day preceding the day on which notice is given, or if notice is waived, at the close of business on the day next preceding the day on which the meeting is held. A determination of stockholders of record entitled to notice of or to vote at a meeting of stockholders shall apply to any adjournment of the meeting; provided that the board of directors may fix a new record date for the adjourned meeting.

Section 4 Fixing a Record Date for Action by Written Consent. In order that the Corporation may determine the stockholders entitled to consent to corporate action without a meeting in accordance with the General Corporation Law of the State of Delaware, the board of directors may fix a record date, which record date shall not precede the date upon which the resolution fixing the record date is adopted by the board of directors, and which date shall not be more than ten (10) days after the date upon which the resolution fixing the record date is adopted by the board of directors. If no record date has been fixed by the board of directors, the record date for determining stockholders entitled to consent to corporate action without a meeting, when no prior action by the board of directors is required by this chapter, shall be the first date on which a signed consent setting forth the action taken or proposed to be taken is delivered to the Corporation in accordance with the General Corporation Law of the State of Delaware. If no record date has been fixed by the board of directors and prior action by the board of directors is required by the General Corporation Law of the State of Delaware, the record date for determining stockholders entitled to consent to corporate action in writing without a meeting shall be at the close of business on the day on which the board of directors adopts the resolution taking such prior action.

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Section 5 Fixing a Record Date for Other Purposes. In order that the Corporation may determine the stockholders entitled to receive payment of any dividend or other distribution or allotment or any rights or the stockholders entitled to exercise any rights in respect of any change, conversion or exchange of stock, or for the purposes of any other lawful action, the board of directors may fix a record date, which record date shall not precede the date upon which the resolution fixing the record date is adopted, and which record date shall be not more than sixty (60) days prior to such action. If no record date is fixed, the record date for determining stockholders for any such purpose shall be at the close of business on the day on which the board of directors adopts the resolution relating thereto.

Section 6 Registered Stockholders. Prior to the surrender to the Corporation of the certificate or certificates for a share or shares of stock with a request to record the transfer of such share or shares, the Corporation may treat the registered owner as the person entitled to receive dividends, to vote, to receive notifications, and otherwise to exercise all the rights and powers of an owner. The Corporation shall not be bound to recognize any equitable or other claim to or interest in such share or shares on the part of any other person, whether or not it shall have express or other notice thereof.

Section 7 Subscriptions for Stock. Unless otherwise provided for in any subscription agreement, subscriptions for shares shall be paid in full at such time, or in such installments and at such times, as shall be determined by the board of directors. Any call made by the board of directors for payment on subscriptions shall be uniform as to all shares of the same class or as to all shares of the same series. In case of default in the payment of any installment or call when such payment is due, the Corporation may proceed to collect the amount due in the same manner as any debt due the Corporation.

ARTICLE VII

GENERAL PROVISIONS

Section 1 Dividends. Dividends upon the capital stock of the Corporation, subject to the provisions of the Corporation’s certificate of incorporation, if any, may be declared by the board of directors at any regular or special meeting, pursuant to applicable law. Dividends may be paid in cash, in property, or in shares of the capital stock, subject to the provisions of the Corporation’s certificate of incorporation. Before payment of any dividend, there may be set aside out of any funds of the Corporation available for dividends such sum or sums as the directors from time to time, in their absolute discretion, deem proper as a reserve or reserves to meet contingencies, or for equalizing dividends, or for repairing or maintaining any property of the Corporation, or for any other purpose and the directors may modify or abolish any such reserve in the manner in which it was created.

Section 2 Checks, Drafts or Orders. All checks, drafts, or other orders for the payment of money by or to the Corporation and all notes and other evidences of indebtedness issued in the name of the Corporation shall be signed by such officer or officers, agent or agents of the Corporation, and in such manner, as shall be determined by resolution of the board of directors or a duly authorized committee thereof.

Section 3 Contracts. The board of directors may authorize any officer or officers, or any agent or agents, of the Corporation to enter into any contract or to execute and deliver any instrument in the name of and on behalf of the Corporation, and such authority may be general or confined to specific instances.

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Section 4 Loans. The Corporation may lend money to, or guarantee any obligation of, or otherwise assist any officer or other employee of the Corporation or its subsidiary, including any officer or employee who is a director of the Corporation or its subsidiary, whenever, in the judgment of the directors, such loan, guaranty or assistance may reasonably be expected to benefit the Corporation. The loan, guaranty or other assistance may be with or without interest, and may be unsecured, or secured in such manner as the board of directors shall approve, including, without limitation, a pledge of shares of stock of the Corporation. Nothing in this section shall be deemed to deny, limit or restrict the powers of guaranty or warranty of the Corporation at common law or under any statute.

Section 5 Fiscal Year. The fiscal year of the Corporation shall be fixed by resolution of the board of directors.

Section 6 Corporate Seal. The board of directors shall provide a corporate seal which shall be in the form of a circle and shall have inscribed thereon the name of the Corporation and the words “Corporate Seal, Delaware”. The seal may be used by causing it or a facsimile thereof to be impressed or affixed or reproduced or otherwise.

Section 7 Voting Securities Owned By the Corporation. Voting securities in any other Corporation or other entity (such as a limited liability company, limited partnership or trust) held by the Corporation shall be voted as directed by the board of directors, unless the board of directors specifically confers authority to vote with respect thereto, which authority may be general or confined to specific instances, upon some other person or officer. Any person authorized to vote securities shall have the power to appoint proxies, with general power of substitution.

Section 8 Inspection of Books and Records. Any stockholder of record, in person or by attorney or other agent, shall, upon written demand under oath stating the purpose thereof, have the right during the usual hours for business to inspect for any proper purpose the Corporation’s stock ledger, a list of its stockholders, and its other books and records, and to make copies or extracts therefrom. A proper purpose shall mean any purpose reasonably related to such person’s interest as a stockholder. In every instance where an attorney or other agent shall be the person who seeks the right to inspection, the demand under oath shall be accompanied by a power of attorney or such other writing which authorizes the attorney or other agent to so act on behalf of the stockholder. The demand under oath shall be directed to the Corporation at its registered office in the State of Delaware or at its principal place of business.

Section 9 Exclusive Jurisdiction. Unless otherwise waived by resolution of the board of directors, the Court of Chancery of the State of Delaware shall be the sole and exclusive forum for (a) any derivative action or proceeding brought on behalf of the Corporation, (b) any action asserting a claim of breach of a fiduciary duty owed by any director or officer of the Corporation to the Corporation or the Corporation’s stockholders, (c) any action asserting a claim against the Corporation arising pursuant to any provision of the General Corporation Law of the State of Delaware or the Corporation’s certificate of incorporation or by-laws or (d) any action asserting a claim against the Corporation governed by the internal affairs doctrine.

Section 10 Section Headings. Section headings in these by-laws are for convenience of reference only and shall not be given any substantive effect in limiting or otherwise construing any provision herein.

Section 11 Inconsistent Provisions. In the event that any provision of these by-laws is or becomes inconsistent with any provision of the Corporation’s certificate of incorporation, the General Corporation Law of the State of Delaware or any other applicable law, the provision of these by-laws shall not be given any effect to the extent of such inconsistency but shall otherwise be given full force and effect.

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ARTICLE VIII

AMENDMENTS

These by-laws may be amended, altered, or repealed and new by-laws adopted at any meeting of the board of directors by a majority vote. The fact that the power to adopt, amend, alter, or repeal the by-laws has been conferred upon the board of directors shall not divest the stockholders of the same powers.

*   *   *   *   *

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Exhibit 99.1

Vista Equity Partners Completes Acquisition of EngageSmart

BOSTON— January 26, 2024 — EngageSmart, Inc. (“EngageSmart” or “the Company”), a leading provider of vertically tailored customer engagement software and integrated payments solutions, today announced the completion of its acquisition by an affiliate of Vista Equity Partners (“Vista”), a leading global investment firm focused exclusively on enterprise software, data and technology-enabled businesses, for $23.00 per share in cash, valuing the Company at approximately $4.0 billion. With the completion of the acquisition, EngageSmart’s common stock ceased trading and the company is no longer listed on the New York Stock Exchange.

“Completing our transaction with Vista marks the beginning of an exciting new chapter for EngageSmart as a privately held company,” said Bob Bennett, EngageSmart CEO. “I’m confident that our customers and EngageSmart will benefit from the deep expertise of Vista and continued partnership with General Atlantic, two software and technology investors that are eager to help us build on our momentum to provide even more powerful, innovative and seamless solutions. I’d like to recognize the dedication and focus of our employees throughout this process. Our team delivers for customers every day and there is no doubt that they will continue to help customers provide the highest adopting digital engagement software, with integrated payments, to their clients.”

“EngageSmart’s success is based upon the Company’s demonstrated track record of innovation and product leadership,” said Michael Fosnaugh, Co-Head of Vista’s Flagship Fund and Senior Managing Director. “With our transaction now complete, we are eager to leverage our resources and value creation expertise to support the Company’s next phase of growth. We look forward to partnering with their team to build on EngageSmart’s strong momentum and bolster its position as a leader in the vertical software and payments space.”

“Vista seeks to partner with innovative founders and executives leading exceptional enterprise software companies,” said Jeff Wilson, Managing Director at Vista. “We share Bob’s vision and the EngageSmart team’s commitment to their customers who provide critical services for our communities.”

EngageSmart stockholders voted to approve the transaction at the Company’s Special Meeting of Stockholders on January 23, 2024.

Advisors

Evercore is acting as financial advisor to the Special Committee, and Skadden, Arps, Slate, Meagher & Flom LLP is acting as legal counsel to the Special Committee.

Goldman Sachs & Co. LLC is acting as exclusive financial advisor to EngageSmart.

Paul, Weiss, Rifkind, Wharton & Garrison LLP is acting as legal counsel to General Atlantic.

BofA Securities and J.P. Morgan Securities LLC are serving as financial advisors to Vista, and Kirkland & Ellis LLP is acting as legal counsel to Vista.

About EngageSmart

EngageSmart is a leading provider of vertically tailored customer engagement software and integrated payments solutions. At EngageSmart, our mission is to simplify customer and client engagement to allow our customers to focus resources on initiatives that improve their businesses and better serve their communities. EngageSmart offers single instance, multi-tenant, true Software-as-a-Service (“SaaS”) vertical solutions, including SimplePractice, InvoiceCloud, and DonorDrive, that are designed to simplify our customers’ engagement with their clients by driving digital adoption and self-service. As of September 30, 2023, EngageSmart serves 116,200 customers in the SMB Solutions segment and 3,400 customers in the Enterprise Solutions segment across several core verticals: Health & Wellness, Government, Utilities, Financial Services, and Giving. For more information, visit www.engagesmart.com and follow us on LinkedIn.

About Vista Equity Partners

Vista is a leading global investment firm with more than $100 billion in assets under management as of September 30, 2023. The firm exclusively invests in enterprise software, data and technology-enabled organizations across private equity, permanent capital, credit and public equity strategies, bringing an approach that prioritizes creating enduring market value for the benefit of its global ecosystem of investors, companies, customers and employees. Vista’s investments are anchored by a sizable long-term capital base, experience in structuring technology-oriented transactions and proven, flexible management techniques that drive sustainable growth. Vista believes the transformative power of technology is the key to an even better future – a healthier planet, a smarter economy, a diverse and inclusive community and a broader path to prosperity. Further information is available at vistaequitypartners.com. Follow Vista on LinkedIn, @Vista Equity Partners, and on X, @Vista_Equity.

About General Atlantic

General Atlantic is a leading global investor with more than four decades of experience providing capital and strategic support for over 500 growth companies throughout its history. Established in 1980 to partner with visionary entrepreneurs and deliver lasting impact, the firm combines a collaborative global approach, sector specific expertise, a long-term investment horizon and a deep understanding of growth drivers to partner with great entrepreneurs and management teams to scale innovative businesses around the world. General Atlantic has more than $77 billion in assets under management inclusive of all products as of September 30, 2023, and more than 220 investment professionals based in New York, Amsterdam, Beijing, Hong Kong, Jakarta, London, Mexico City, Miami, Mumbai, Munich, San Francisco, São Paulo, Shanghai, Singapore, Stamford and Tel Aviv. For more information on General Atlantic, please visit: www.generalatlantic.com.

Contacts

Investors

Josh Schmidt

EngageSmart, Inc.

IR@engagesmart.com

Media

EngageSmart:

Sharon Stern / Ed Trissel

Joele Frank, Wilkinson Brimmer Katcher

ESMT-JF@joelefrank.com

Vista Equity Partners:

Brian Steel

media@vistaequitypartners.com

(212) 804-9170

General Atlantic:

Emily Japlon

media@generalatlantic.com