Exhibit 3.1

THIRD AMENDED AND RESTATED CERTIFICATE OF INCORPORATION

OF

AGILITI, INC.

1. The name of this corporation is Agiliti, Inc. (the “Corporation”).

2. The registered office of the Corporation in the State of Delaware is located at 251 Little Falls Drive, in the City of Wilmington, County of New Castle 19808. The name of its registered agent at such address is Corporation Service Company.

3. 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”).

4. The total number of shares of stock that the Corporation shall have authority to issue is one-hundred million (100,000,000) shares of Common Stock, $0.001 par value per share. Each share of Common Stock shall be entitled to one vote.

5. Except as otherwise provided in the provisions establishing a class of stock, the number of authorized shares of any class or series of stock may be increased or decreased (but not below the number of shares thereof then outstanding) by the affirmative vote of the holders of a majority of the voting power of the corporation entitled to vote irrespective of the provisions of Section 242(b)(2) of the DGCL.

6. The business and affairs of the Corporation shall be managed by or under the direction of the Board of Directors. The size of the Board of Directors shall be determined as set forth in the bylaws of the Corporation, as in effect from time to time (the “Bylaws”). The election of directors need not be by written ballot unless the Bylaws shall so require.

7. In furtherance and not in limitation of the power conferred upon the Board of Directors by law, the Board of Directors shall have power to make, adopt, alter, amend and repeal from time to time the Bylaws of the Corporation, subject to the right of the stockholders entitled to vote with respect thereto to alter and repeal Bylaws made by the Board of Directors.

8. To the fullest extent permitted by law, a director of the Corporation shall not be personally liable to the Corporation or its stockholders for monetary damages for breach of fiduciary duty as a director. If the DGCL or any other law of the State of Delaware is amended after approval by the stockholders of this paragraph 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.

Any repeal or modification of the foregoing provisions of this paragraph by the stockholders of the Corporation shall not adversely affect any right or protection of a director of the Corporation existing at the time of, or increase the liability of any director of the Corporation with respect to any acts or omissions of such director occurring prior to, such repeal or modification.

9. The Corporation shall, to the maximum extent permitted from time to time under the law of the State of Delaware, indemnify and upon request shall advance expenses to any person who is or was a party or is threatened to be made a party to any threatened, pending or completed action, suit, proceeding or claim, whether civil, criminal, administrative or investigative, by reason of the fact that such person is or was a director or officer of the Corporation or while a director or officer is or was serving at the request of the Corporation as a director, officer, partner, trustee, employee or agent of any corporation, partnership, joint venture, trust or other enterprise, including service with respect to employee benefit plans, against expenses (including attorney’s fees and expenses), judgments, fines, penalties and amounts paid in settlement incurred in connection with the investigation, preparation to defend or defense of such action, suit, proceeding or claim; provided, however, that the foregoing shall not require the Corporation to indemnify or advance expenses to any person in connection with any action, suit, proceeding or claim initiated by or on behalf of such person or any counterclaim against the Corporation initiated by or on behalf of such person. Such indemnification shall not be exclusive of other indemnification rights arising under any by-law, agreement, vote of directors or stockholders or otherwise and shall inure to the benefit of the heirs and legal representatives of such person. Any person seeking indemnification under this paragraph shall be deemed to have met the standard of conduct required for such indemnification unless the contrary shall be established. The Corporation shall be the indemnitor of first resort for any director or officer who is entitled to indemnification and advancement pursuant to this paragraph (i.e., the Corporation’s obligations to indemnify a director or officer shall be primary and any obligation of a current or former third party employer, partnership of which such director or officer is a partner, limited liability company of which such director or officer is a member or affiliate of such director or officer (any such person, an “Indemnitor”), to advance expenses or provide indemnification for the same expenses or liabilities incurred by such director or officer are secondary) and it shall be required to advance the full amount of expenses incurred by such director or officer and shall be liable for the full amount of expenses, judgments, penalties, fines and amounts paid in settlement to the extent legally permitted and as required by this certificate of incorporation (or any other agreement between the Corporation and such director or officer), without regard to any rights such director or officer may have against any Indemnitor. The Corporation shall have no right to seek contribution or other reimbursement from any Indemnitor for any payments by the Corporation.

Any amendment, repeal or modification of the foregoing provisions of this paragraph shall not adversely affect any right or protection of any director, officer or other agent of the Corporation existing at the time of such amendment, repeal or modification.

10. To the maximum extent permitted from time to time under the law of the State of Delaware, the Corporation renounces any interest or expectancy of the Corporation in, or in being offered an opportunity to participate in, business opportunities that are from time to time presented to its directors or stockholders. No amendment or repeal of this paragraph shall apply to or have any effect on the liability or alleged liability of any officer, director or stockholder of the Corporation for or with respect to any opportunities of which such director or stockholder becomes aware prior to such amendment or repeal. To the fullest extent permitted by law, any Person purchasing or otherwise acquiring any interest in any shares of capital stock of the corporation shall be deemed to have notice of and to have consented to the provisions of this paragraph. As used herein, “Person” shall mean any individual, corporation, general or limited partnership, limited liability company, joint venture, trust association or any other entity.

11. The books of the Corporation may (subject to any statutory requirements) be kept outside the State of Delaware as may be designated by the Board of Directors or in the Bylaws of the Corporation.

12. If at any time the Corporation shall have a class of stock registered pursuant to the provisions of the Securities Exchange Act of 1934, for so long as such class is so registered, any action by the stockholders of such class must be taken at an annual or special meeting of stockholders and may not be taken by written consent.

13. The Corporation hereby elects not be governed by Section 203 of the DGCL.