Exhibit 3.1

AMENDED AND RESTATED

CERTIFICATE OF INCORPORATION

of

CVENT HOLDING CORP.

FIRST.    The name of the corporation is Cvent Holding Corp. (the “Corporation”).

SECOND.    The registered office of the Corporation in the State of Delaware is 251 Little Falls Drive, Wilmington, New Castle County, Delaware, 19808; and the name of the Corporation’s registered agent at such address is Corporation Service Company.

THIRD.    The purpose of the Corporation 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 (the “DGCL”) or any successor statute.

FOURTH.    The total number of shares of capital stock which the Corporation shall have authority to issue is 1,000 shares of common stock, par value $0.01 per share (the “Common Stock”).

FIFTH.    In furtherance and not in limitation of the powers conferred by the laws of the State of Delaware, the board of directors of the Corporation (the “Board”), acting by majority vote, is expressly authorized to make, alter, amend or repeal the bylaws of the Corporation.

SIXTH.    Unless and except to the extent that the bylaws of the Corporation shall so require, election of directors of the Corporation need not be by written ballot.

SEVENTH.    To the fullest extent permitted by law, no director of the Corporation will have any personal liability to the Corporation or its stockholders for monetary damages for any breach of fiduciary duty as a director. If the DGCL is amended to authorize corporate action further eliminating or limiting the personal liability of directors, then the liability of a director of the Corporation shall be eliminated or limited to the fullest extent permitted by the DGCL, as so amended. Neither the amendment nor the repeal of this Article SEVENTH shall eliminate, reduce or otherwise adversely affect any limitation on the personal liability of a director of the Corporation existing prior to such amendment or repeal.

EIGHTH.    To the fullest extent permitted by applicable law, as the same exists or may hereafter be amended, the Corporation shall indemnify and hold harmless each individual, sole proprietorship, corporation, partnership, limited liability company, limited partnership, joint venture, association, trust, or any other entity or organization, including a government or a political subdivision, agency or instrumentality (each, a “Person”) who is or was made a party or is threatened to be made a party to or is otherwise involved in any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (for purposes of this Article EIGHTH, a “Proceeding”) by reason of the fact that he or she is or was a director or officer of the Corporation or, while a director or officer of the Corporation, is or was serving at the request of the Corporation as a director, member, manager, officer, employee or agent of another corporation or of a partnership, limited liability company,

joint venture, trust, other enterprise or nonprofit entity, including service with respect to an employee benefit plan (an “Indemnitee”) against all liability and loss suffered and expenses (including, without limitation, attorneys’ fees, judgments, fines, Employee Retirement Income Security Act of 1974 excise taxes and penalties and amounts paid in settlement) reasonably incurred by such Indemnitee in connection with such Proceeding. The Corporation shall to the fullest extent not prohibited by applicable law pay the expenses (including attorneys’ fees) incurred by an Indemnitee in defending or otherwise participating in any Proceeding in advance of its final disposition. Notwithstanding the foregoing, to the extent required by applicable law, such payment of expenses in advance of the final disposition of the Proceeding shall be made only upon receipt of an undertaking, by or on behalf of the Indemnitee, to repay all amounts so advanced if it shall ultimately be determined that the Indemnitee is not entitled to be indemnified under this Article EIGHTH or otherwise. The rights to indemnification and advancement of expenses conferred by this Article EIGHTH shall be contract rights and such rights shall continue as to an Indemnitee who has ceased to be a director, officer, employee or agent and shall inure to the benefit of his or her heirs, executors and administrators. Notwithstanding the foregoing provisions of this Article EIGHTH, except for Proceedings to enforce rights to indemnification and advancement of expenses, the Corporation shall indemnify and advance expenses to an Indemnitee in connection with a Proceeding (or part thereof) initiated by such Indemnitee, only if such Proceeding (or part thereof) was authorized by the Board.

The rights to indemnification and advancement of expenses conferred on any Indemnitee by this Article EIGHTH shall not be exclusive of any other rights that any Indemnitee may have or hereafter acquire under law, the Corporation’s Certificate of Incorporation or bylaws, insurance, an agreement, vote of stockholders or disinterested directors, or otherwise.

Any repeal or amendment of this Article EIGHTH by the stockholders of the Corporation or by changes in law, or the adoption of any other provision of this Certificate of Incorporation inconsistent with this Article EIGHTH, shall, unless otherwise required by law, be prospective only (except to the extent such amendment or change in law permits the Corporation to provide broader indemnification rights on a retroactive basis than permitted prior thereto), and shall not in any way diminish or adversely affect any right or protection existing at the time of such repeal or amendment or adoption of such inconsistent provision in respect of any Proceeding (regardless of when such Proceeding is first threatened, commenced or completed) arising out of, or related to, any act or omission occurring prior to such repeal or amendment or adoption of such inconsistent provision.

This Article EIGHTH shall not limit the right of the Corporation, to the extent and in the manner authorized or permitted by law, to indemnify and to advance expenses to Persons other than Indemnitees.

The Corporation shall purchase and maintain insurance (or be named insured on the insurance policy of an affiliate), on behalf of the Indemnitees and such other Persons as the Board shall determine, in its sole discretion, against any liability that may be asserted against, or expense that may be incurred by, such Person in connection with such Person’s activities on behalf of the Corporation, regardless of whether the Corporation would have the power to indemnify such Person against such liability under the provisions of this Certificate of Incorporation.

NINTH.    In recognition and anticipation of the facts that (i) the directors, managers, officers, members, partners, managing members, employees and/or agents of the Investor Group (each of the foregoing, an “Investor Group Related Person”) may serve as directors and/or officers of the Corporation (which, for purposes of this Article NINTH, shall, unless the context otherwise requires, include any subsidiaries of the Corporation), and (ii) the Investor Group engages and may continue to engage in the same or similar activities or related lines of business as those in which the Corporation, directly or indirectly, may engage and/or other business activities that overlap with or compete with those in which the Corporation, directly or indirectly, may engage, the provisions of this Article NINTH are set forth to regulate and define the conduct of certain affairs of the Corporation as they may involve the Investor Group and the Investor Group Related Persons, and the powers, rights, duties and liabilities of the Corporation and its officers, directors and stockholders in connection therewith.

Except as otherwise agreed in writing between the Investor Group or the Investor Group Related Persons and the Corporation, or as provided below, to the fullest extent permitted by law, except as may be otherwise agreed in writing between such Investor Group Related Person and the Corporation, (a) no Investor Group Related Person (other than any director who is an executive officer of the Corporation) shall have any duty (fiduciary or otherwise) or obligation, if any, to refrain from (i) engaging in the same or similar activities or lines of business as the Corporation or any of its subsidiaries or (ii) doing business with any client, customer or vendor of the Corporation or any of its subsidiaries, including, in the cases of clauses (i) or (ii), any such matters as may be Corporate Opportunities (as defined below); and (b) no Investor Group Related Person shall be deemed to have breached any duty (fiduciary or otherwise), if any, to the Corporation or any of its subsidiaries or stockholders solely by reason of any Investor Group Related Person (other than any director who is an executive officer of the Corporation) engaging in any such activity or entering into such transactions, including any Corporate Opportunities. “Corporate Opportunity” means any potential transaction, investment or business opportunity or prospective economic or competitive advantage in which the Corporation or any of its subsidiaries could have any expectancy or interest.

Without limiting the foregoing, the Corporation and its subsidiaries shall have no interest or expectation in, nor right to be informed of, any Corporate Opportunity, and in the event that any Investor Group Related Person (other than any director who is an executive officer of the Corporation) acquires knowledge of a potential transaction or matter which may be a Corporate Opportunity, such Investor Group Related Person shall, to the fullest extent permitted by law, have no duty (fiduciary or otherwise) or obligation to communicate or offer such Corporate Opportunity to the Corporation or any of its subsidiaries or to any other Investor Group Related Person and shall not, to the fullest extent permitted by law, be liable to the Corporation or any of its subsidiaries or stockholders for breach of any fiduciary duty as a director of the Corporation or any of its subsidiaries solely by reason of the fact that any Investor Group Related Person (other than any director who is an executive officer of the Corporation) acquires or seeks such Corporate Opportunity for itself, directs such Corporate Opportunity to another individual, partnership, joint venture, corporation, association, joint stock company, limited liability company, trust, unincorporated organization or government or a department or agency or political subdivision thereof, or otherwise does not communicate information regarding such Corporate Opportunity to the Corporation or its subsidiaries, and the Corporation and its subsidiaries, to the fullest extent permitted by law, waive and renounce any claim that such business opportunity constituted a Corporate Opportunity that should have been presented to the Corporation or its subsidiaries; provided that if an opportunity is expressly communicated to a director of the Corporation in his or her capacity as a director as an opportunity intended

exclusively for the Corporation or its subsidiaries (hereinafter called an “Identified Corporate Opportunity”), such Identified Corporate Opportunity shall belong to the Corporation and its subsidiaries and, unless and until the Corporation notifies the stockholders that neither the Corporation nor any of its subsidiaries intend to pursue such Identified Corporate Opportunity, no director of the Corporation may pursue such Identified Corporate Opportunity. In addition to and notwithstanding the foregoing provisions of this Article NINTH, a corporate opportunity shall not be deemed to be a potential corporate opportunity for the Corporation if it is a business opportunity that (i) the Corporation is neither financially or legally able, nor contractually permitted to undertake, (ii) from its nature, is not in the line of the Corporation’s business or is of no practical advantage to the Corporation or (iii) is one in which the Corporation has no interest or reasonable expectancy. To the fullest extent permitted by law, any person or entity purchasing or otherwise acquiring any interest in shares of capital stock of the Corporation shall be deemed to have notice of and consented to the provisions of this Article NINTH.

As used in this Article NINTH, the following definitions shall apply:

“Affiliates” shall have the meaning set forth in Rule 12b-2 promulgated under the Securities Exchange Act of 1934, as amended.

“Investor Group” shall mean Blackstone Capital Partners VIII L.P. and its respective Affiliates, and the respective successors and assigns of the foregoing.

TENTH.    The Corporation hereby expressly elects not to be governed by Section 203 of the DGCL, and the restrictions contained in Section 203 of the DCGL shall not apply to the Corporation.

ELEVENTH.    Unless the Corporation consents in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware shall, to the fullest extent permitted by law, be the sole and exclusive forum for (i) any derivative action or proceeding brought on behalf of the Corporation, (ii) any action asserting a claim of breach of a fiduciary duty owed by, or other wrongdoing by, any director, officer, employee or agent of the Corporation to the Corporation or the Corporation’s stockholders, (iii) any action asserting a claim arising pursuant to any provision of the DGCL or the Corporation’s Certificate of Incorporation or bylaws (as either may be amended and/or restated from time to time), (iv) any action to interpret, apply, enforce or determine the validity of the Corporation’s Certificate of Incorporation or bylaws (as either may be amended and/or restated from time to time), or (v) any action asserting a claim governed by the internal affairs doctrine, in each case subject to said court having personal jurisdiction over the indispensable parties named as defendants therein; provided, that, if and only if the Court of Chancery of the State of Delaware dismisses any such action for lack of subject matter jurisdiction, such action may be brought in another state court sitting in the State of Delaware. To the fullest extent permitted by law, any person or entity purchasing or otherwise acquiring any interest in shares of capital stock of the Corporation shall be deemed to have notice of and consented to the provisions of this Article ELEVENTH.

TWELFTH.    If any provision or provisions of this Certificate of Incorporation shall be held to be invalid, illegal or unenforceable as applied to any circumstance for any reason whatsoever: (i) the validity, legality and enforceability of such provisions in any other circumstance and of the remaining provisions of this Certificate of Incorporation (including, without limitation, each portion of any paragraph of this Certificate of Incorporation containing any such provision held to be invalid, illegal or unenforceable that is not itself held to be invalid,

illegal or unenforceable) shall not in any way be affected or impaired thereby and (ii) to the fullest extent possible, the provisions of this Certificate of Incorporation (including, without limitation, each such portion of any paragraph of this Certificate of Incorporation containing any such provision held to be invalid, illegal or unenforceable) shall be construed so as to permit the Corporation to protect its directors, officers, employees and agents from personal liability in respect of their good faith service or for the benefit of the Corporation to the fullest extent permitted by law.

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