Exhibit 3.1

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION

OF

INDIE SEMICONDUCTOR, INC.

indie Semiconductor, Inc., a corporation organized and existing under the laws of the State of Delaware (the “Company”), DOES HEREBY CERTIFY AS FOLLOWS:

1.The name of the Company is “indie Semiconductor, Inc.”. The original certificate of incorporation of the Company was filed with the Secretary of State of the State of Delaware on December 4, 2020 under the name Thunder Bridge II Surviving Pubco, Inc., and an amended and restated certificate of incorporation was filed with the Secretary of State of the State of Delaware on June 10, 2021 (as amended and restated, the “Certificate of Incorporation”).

2.This Amended and Restated Certificate of Incorporation (the “Amended and Restated Certificate”), which both restates and further amends the provisions of the Certificate of Incorporation, was duly adopted in accordance with Sections 242 and 245 of the General Corporation Law of the State of Delaware, as amended.

3.This Amended and Restated Certificate shall become effective on the date of filing with the Secretary of State of Delaware.

4.The text of the Certificate of Incorporation is hereby restated and amended in its entirety to read as follows:

ARTICLE I

NAME

The name of the corporation is “indie Semiconductor, Inc.” (the “Company”).

ARTICLE II

REGISTERED OFFICE AND AGENT

The address of the Company’s registered office in the State of Delaware is c/o Corporate Creations Network Inc., 3411 Silverside Road, Tatnall Building #104, in the City of Wilmington, County of New Castle, State of Delaware 19810. The name of the Company’s registered agent at such address is Corporate Creations Network Inc.

ARTICLE III

PURPOSE

The purpose of the Company 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, as amended (the “DGCL”).

ARTICLE IV

CAPITAL STOCK

Section 1. Authorized Capital Stock. The total number of shares of all classes of capital stock which the Company is authorized to issue is 450,000,000 shares, consisting of (i) 400,000,000 shares of Class A common stock, par value $0.0001 per share (the “Class A Common Stock”), (ii) 40,000,000 shares of Class V common stock, par value $0.0001 per share (the “Class V Common Stock”), and (iii) 10,000,000 shares of preferred stock, par value $0.0001 per share (“Preferred Stock”). Subject to the rights of the holders of any series of Preferred Stock, the number of authorized shares of Class A Common Stock, Class V Common Stock or Preferred Stock may be increased or decreased (but not below (i) the number of shares thereof then outstanding and (ii) with respect to the Class A Common Stock, the number of shares of Class A Common Stock reserved pursuant to Article IV,

Section 2(e)(3) below) by the affirmative vote of the holders of capital stock representing a majority in voting power of all the then-outstanding shares of capital stock of the Company entitled to vote thereon irrespective of the provisions of Section 242(b)(2) of the DGCL.

Section 2. Common Stock.

(a) Ranking. The voting, dividend and liquidation rights of the holders of the Common Stock are subject to and qualified by the rights of the holders of the Preferred Stock of any series as may be designated by the Board upon any issuance of the Preferred Stock of any series.

(b) Voting. Subject to the rights of the holders of any series of Preferred Stock, (i) each holder of Class A Common Stock, as such, shall have the right to one (1) vote per share of Class A Common Stock held of record by such holder and (ii) each holder of Class V Common Stock, as such, shall have the right to one (1) vote per share of Class V Common Stock held of record by such holder. Except as otherwise required by applicable law or provided in this Certificate of Incorporation, the holders of shares of Class A Common Stock and Class V Common Stock, as such, shall at all times vote together as a single class on all matters (including the election of directors) submitted to a vote of the stockholders of the Company generally. Notwithstanding any other provision of this Certificate of Incorporation to the contrary, the holders of Common Stock will not be entitled to vote on any amendment to this Certificate of Incorporation (including any Preferred Stock Designation) that relates solely to the terms of one or more outstanding series of Preferred Stock if the holders of such affected series are entitled, either separately or together as a class with the holders of one or more other such series, to vote thereon pursuant to this Certificate of Incorporation (including any Preferred Stock Designation) or the DGCL. There shall be no cumulative voting.

(c) Dividends and Distributions. Subject to the rights of the holders of any series of Preferred Stock, holders of shares of Class A Common Stock will be entitled to receive ratably, in proportion to the number of shares of Class A Common Stock held by them, such dividends and other distributions in cash, stock or property of the Company when, as and if declared thereon by the Board from time to time out of assets or funds of the Company legally available therefor. Dividends and other distributions shall not be declared or paid on the Class V Common Stock.

(d) Liquidation, Dissolution or Winding Up. Subject to the rights of the holders of Preferred Stock, holders of shares of Class A Common Stock will be entitled to receive ratably, in proportion to the number of shares of Class A Common Stock held by them, the assets and funds of the Company available for distribution in the event of any liquidation, dissolution or winding up of the affairs of the Company, whether voluntary or involuntary. A liquidation, dissolution or winding up of the affairs of the Company, as such terms are used in this Article IV, Section 2(d), will not be deemed to be occasioned by or to include any consolidation or merger of the Company with or into any other person or a sale, lease, exchange or conveyance of all or a part of its assets. The holders of shares of Class V Common Stock, as such, shall not be entitled to receive any assets of the Company in the event of any voluntary or involuntary liquidation, dissolution or winding up of the affairs of the Company.

(e) Transfer. No holder of Class V Common Stock shall be permitted to consummate a sale, pledge, conveyance, hypothecation, assignment or other transfer (“Transfer”) of Class V Common Stock other than as permitted pursuant to that certain Exchange Agreement (the “Exchange Agreement”) entered into by and between the Company and certain members of Ay Dee Kay LLC, d/b/a indie Semiconductor, a California limited liability company (“ADK”). Any purported Transfer of Class V Common Stock not in accordance with the terms of this Article IV, Section 2(e) shall be void ab initio. The Company may, as a condition to the Transfer or the registration of Transfer of shares of Class V Common Stock, require the furnishing of such affidavits or other proof as it deems necessary to establish whether such Transfer is permitted pursuant to the terms of this Article IV, Section 2(e).

(f) Retirement of Class V Common Stock. In the event that any outstanding share of Class V Common Stock shall cease to be held directly or indirectly by a holder of an LLC Unit (as defined in the Exchange Agreement) as set forth in the books and records of ADK, such share shall automatically and without further action

on the part of the Company or any holder of Class V Common Stock be transferred to the Company for no consideration. The Company shall not issue additional shares of Class V Common Stock after the effectiveness of this Certificate of Incorporation.

Section 3. Preferred Stock. The Preferred Stock may be issued in one or more series. The Board of Directors of the Company (the “Board”) is hereby authorized to issue the shares of Preferred Stock in such series and to fix from time to time before issuance the number of shares to be included in any such series and the designation, powers, preferences and relative participating, optional or other rights, if any, and the qualifications, limitations or restrictions thereof. The authority of the Board with respect to each such series will include, without limiting the generality of the foregoing, the determination of any or all of the following:

(a) the number of shares of any series and the designation to distinguish the shares of such series from the shares of all other series;

(b) the voting powers, if any, and whether such voting powers are full or limited in such series;

(c) the redemption provisions, if any, applicable to such series, including the redemption price or prices to be paid;

(d) whether dividends, if any, will be cumulative or noncumulative, the dividend rate of such series, and the dates and preferences of dividends on such series;

(e) the rights of such series upon the voluntary or involuntary dissolution of, or upon any distribution of the assets of, the Company;

(f) the provisions, if any, pursuant to which the shares of such series are convertible into, or exchangeable for, shares of any other class or classes or of any other series of the same or any other class or classes of stock, or any other security, of the Company or any other corporation or other entity, and the rates or other determinants of conversion or exchange applicable thereto;

(g) the right, if any, to subscribe for or to purchase any securities of the Company or any other corporation or other entity;

(h) the provisions, if any, of a sinking fund applicable to such series; and

(i) any other relative, participating, optional, or other special powers, preferences or rights and qualifications, limitations, or restrictions thereof; all as may be determined from time to time by the Board and stated or expressed in the resolution or resolutions providing for the issuance of such Preferred Stock (collectively, a “Preferred Stock Designation”).

ARTICLE V

MEETINGS OF STOCKHOLDERS

Section 1. General. Subject to the rights of the holders of any series of Preferred Stock, (a) any action required or permitted to be taken by the stockholders of the Company may be taken at a duly called annual or special meeting of stockholders of the Company and (b) special meetings of stockholders of the Company may be called only (i) by the Chairman of the Board (the “Chairman”), (ii) by the Chief Executive Officer of the Company (the “Chief Executive Officer”), or (iii) by the Secretary of the Company (the “Secretary”) acting at the request of the Chairman, the Chief Executive Officer or a majority of the total number of Directors that the Company would have if there were no vacancies on the Board. At any annual meeting or special meeting of stockholders of the Company, only such business will be conducted or considered as has been brought before such meeting in the manner provided in the Bylaws of the Company. Notwithstanding anything contained in this Certificate of Incorporation to the contrary, the affirmative vote of the holders of at least 66-2/3% of the voting power of the outstanding voting capital

stock of the Company, voting together as a single class, will be required to amend or repeal, or adopt any provision inconsistent with, this Article V.

Section 2. Written Consent. Unless otherwise provided in this Amended and Restated Certificate of Incorporation or the Bylaws of the Company, any action required to be taken at any annual or special meeting of stockholders of the Company, 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 in writing, 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. Prompt notice of the taking of the corporate action without a meeting by less than unanimous written consent shall be given to those stockholders who have not consented in writing 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 written consents signed by a sufficient number of holders to take action were delivered to the Company.

ARTICLE VI

BOARD OF DIRECTORS

Section 1. General. The business and affairs of the Company will be managed by or under the direction of the Board.

Section 2. Number. Subject to the rights, if any, of the holders of any series of Preferred Stock to elect additional Directors under circumstances specified in a Preferred Stock Designation, the number of the Directors of the Company will be fixed from time to time in the manner provided in the Bylaws of the Company.

Section 3. Election and Terms of Service.

(a) Subject to the rights of holders of any series of Preferred Stock to elect Directors, the Board shall be divided into three classes, designated Class I, Class II and Class III. Each class shall consist, as nearly as may be possible, of one third of the total number of directors constituting the entire Board. The Board is authorized to assign members of the Board already in office to Class I, Class II or Class III at the time such classification becomes effective.

(b) Subject to the rights of holders of any series of Preferred Stock to elect directors, each director shall serve for a term ending on the date of the third annual meeting of stockholders following the annual meeting of stockholders at which such director was elected; provided that each director initially assigned to Class I shall serve for a term expiring at the Company’s first annual meeting of stockholders held following the time at which the initial classification of the Board becomes effective; each director initially assigned to Class II shall serve for a term expiring at the Company’s second annual meeting of stockholders held following the time at which the initial classification of the Board becomes effective; and each director initially assigned to Class III shall serve for a term expiring at the Company’s third annual meeting of stockholders held following the time at which the initial classification of the Board becomes effective; provided further, that the term of each director shall continue until the election and qualification of his or her successor and be subject to his or her earlier death, disqualification, resignation or removal.

(c) Subject to the rights, if any, of the holders of any series of Preferred Stock to elect additional Directors under circumstances specified in a Preferred Stock Designation, Directors may be elected by the stockholders only at an annual meeting of stockholders. Election of Directors of the Company need not be by written ballot unless requested by the presiding officer or by the holders of a majority of the voting capital stock of the Company present in person or represented by proxy at a meeting of the stockholders at which Directors are to be elected. If authorized by the Board, such requirement of a written ballot will be satisfied by a ballot submitted by electronic transmission as long as any such electronic transmission either sets forth or is submitted with information from which it can be determined that the electronic transmission was authorized by the stockholder or proxy holder.

Section 4. Nomination of Director Candidates. Advance notice of stockholder nominations for the election of Directors must be given in the manner provided in the Bylaws of the Company.

Section 5. Newly Created Directorships and Vacancies. Subject to the rights, if any, of the holders of any series of Preferred Stock to elect additional Directors under circumstances specified in a Preferred Stock Designation, newly created directorships resulting from any increase in the number of Directors and any vacancies on the Board resulting from death, resignation, disqualification, removal, or other cause will be filled solely by the affirmative vote of a majority of the remaining Directors then in office, even though less than a quorum of the Board, or by a sole remaining Director. Any Director elected in accordance with the preceding sentence will hold office for the remainder of the full term of the class of Directors in which the new directorship was created or the vacancy occurred and until such Director’s successor has been elected and qualified. No decrease in the number of Directors constituting the Board may shorten the term of any incumbent Director.

Section 6. Removal. Subject to the rights, if any, of the holders of any series of Preferred Stock to elect additional Directors under circumstances specified in a Preferred Stock Designation, any director may be removed from office at any time, but only for cause, by the affirmative vote of the holders of at least 66-2/3% of the voting power of the outstanding voting capital stock of the Company, voting together as a single class.

ARTICLE VII

LIMITATION OF DIRECTOR LIABILITY

To the full extent permitted by the DGCL and any other applicable law currently or hereafter in effect, no Director of the Company will be personally liable to the Company or its stockholders for or with respect to any breach of fiduciary duty or other act or omission as a Director of the Company; provided, however, that nothing contained in this Article VII shall eliminate or limit the liability of a director (i) for any breach of the director’s duty of loyalty to the Company or its stockholders, or (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law. No repeal or modification of this Article VII will adversely affect the protection of any Director of the Company provided hereby in relation to any breach of fiduciary duty or other act or omission as a Director of the Company occurring prior to the effectiveness of such repeal or modification. If any provision of the DGCL is amended to authorize corporate action further eliminating or limiting the personal liability of directors, then the liability of directors will be eliminated or limited to the fullest extent permitted by the DGCL, as so amended.

ARTICLE VIII

INDEMNIFICATION

Section 1. Right to Indemnification. Each person who was or is made a party or is threatened to be made a party to or is otherwise subject to or involved in any claim, demand, 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 an officer of the Company or is or was serving at the request of the Company as a director, officer, employee or agent of another company 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, officer, employee or agent or in any other capacity while serving as a director, officer, employee or agent, will be indemnified by the Company to the fullest extent permitted or required by the DGCL and any other applicable law, 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 Company to provide broader indemnification rights than such law permitted the Company to provide prior to such amendment), against all expense, liability and loss (including attorneys’ fees, judgments, fines, ERISA excise taxes or penalties and amounts paid in settlement) reasonably incurred or suffered by such Indemnitee in connection therewith (“Indemnifiable Losses”); provided, however, that, except as provided in Section 4 of this Article VIII with respect to Proceedings to enforce rights to indemnification,

the Company will indemnify any such Indemnitee pursuant to this Section 1 in connection with a Proceeding (or part thereof) initiated by such Indemnitee only if such Proceeding (or part thereof) was authorized by the Board.

Section 2. Right to Advancement of Expenses. The right to indemnification conferred in Section 1 of this Article VIII will include the right to advancement by the Company of any and all expenses (including, without limitation, attorneys’ fees and expenses) incurred in defending any such Proceeding in advance of its final disposition (an “Advancement of Expenses”); provided, however, that, if the DGCL so requires, an Advancement of Expenses incurred by an Indemnitee in his or her capacity as a director or officer (and not in any other capacity in which service was or is rendered by such Indemnitee, including without limitation service to an employee benefit plan) will be made pursuant to this Section 2 only upon delivery to the Company of an undertaking (an “Undertaking”), by or on behalf of such Indemnitee, to repay, without interest, all amounts so advanced if it is 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 2. An Indemnitee’s right to an Advancement of Expenses pursuant to this Section 2 is not subject to the satisfaction of any standard of conduct and is not conditioned upon any prior determination that Indemnitee is entitled to indemnification under Section 1 of this Article VIII with respect to the related Proceeding or the absence of any prior determination to the contrary.

Section 3. Contract Rights. The rights to indemnification and to the Advancement of Expenses conferred in Sections 1 and 2 of this Article VIII are contract rights and such rights will continue as to an Indemnitee who has ceased to be a director, officer, employee or agent and will inure to the benefit of the Indemnitee’s heirs, executors and administrators.

Section 4. Right of Indemnitee to Bring Suit. If a claim under Section 1 or 2 of this Article VIII is not paid in full by the Company within 60 calendar days after a written claim has been received by the Company, except in the case of a claim for an Advancement of Expenses, in which case the applicable period will be 20 calendar days, the Indemnitee may at any time thereafter bring suit against the Company to recover the unpaid amount of the claim. If successful in whole or in part in any such suit, or in a suit brought by the Company to recover an Advancement of Expenses pursuant to the terms of an Undertaking, the Indemnitee will be entitled to the fullest extent permitted or required by the DGCL, 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 Company to provide broader reimbursements of prosecution or defense expenses than such law permitted the Company to provide prior to such amendment), to be paid also the expense of prosecuting or defending such suit. In (a) any suit brought by the Indemnitee to enforce a right to indemnification hereunder (but not in a suit brought by the Indemnitee to enforce a right to an Advancement of Expenses) it will be a defense that, and (b) any suit brought by the Company to recover an Advancement of Expenses pursuant to the terms of an Undertaking, the Company will be entitled to recover such expenses, without interest, upon a Final Adjudication that, the Indemnitee has not met any applicable standard for indemnification set forth in the DGCL. Neither the failure of the Company (including its Board of Directors or a committee thereof, its stockholders or independent legal counsel) to have made a determination prior to the commencement of such suit that indemnification of the Indemnitee is proper in the circumstances because the Indemnitee has met the applicable standard of conduct set forth in the DGCL, nor an actual determination by the Company (including its Board of Directors or a committee thereof, its stockholders or independent legal counsel) that the Indemnitee has not met such applicable standard of conduct, will create a presumption that the Indemnitee has not met the applicable standard of conduct or, in the case of such a suit brought by the Indemnitee, be a defense to such suit. In any suit brought by an Indemnitee to enforce a right to indemnification or to an Advancement of Expenses hereunder, or brought by the Company to recover an Advancement of Expenses hereunder pursuant to the terms of an Undertaking, the burden of proving that the Indemnitee is not entitled to be indemnified, or to such Advancement of Expenses, will be on the Company.

Section 5. Non-Exclusivity of Rights. The rights to indemnification and to the Advancement of Expenses conferred in this Article VIII will not be exclusive of any other right which any person may have or hereafter acquire under any statute, the Company’s Certificate of Incorporation, Bylaws, agreement, vote of stockholders or disinterested directors or otherwise. Nothing contained in this Article VIII will limit or otherwise affect any such other right or the Company’s power to confer any such other right.

Section 6. Insurance. The Company may maintain insurance, at its expense, to protect itself and any director, officer, employee or agent of the Company or another corporation, partnership, joint venture, trust or other enterprise against any expense, liability or loss, whether or not the Company would have the power to indemnify such person against such expense, liability or loss under the DGCL.

Section 7. No Duplication of Payments. The Company will not be liable under this Article VIII to make any payment to an Indemnitee in respect of any Indemnifiable Losses to the extent that the Indemnitee has otherwise actually received payment (net of any expenses incurred in connection therewith and any repayment by the Indemnitee made with respect thereto) under any insurance policy or from any other source in respect of such Indemnifiable Losses.

ARTICLE IX

AMENDMENT OF CERTIFICATE OF INCORPORATION

The Company reserves the right at any time from time to time to amend, alter, change or repeal any provision contained in this Certificate of Incorporation, and any other provisions authorized by the DGCL may be added or inserted, in the manner now or hereafter prescribed by law; and all rights, preferences and privileges of whatsoever nature conferred upon stockholders, directors or any other persons whomsoever by and pursuant to this Certificate of Incorporation in its present form or as hereafter amended are granted subject to the right reserved in this Article IX. Notwithstanding any other provision of this Certificate of Incorporation or any provision of law that might otherwise permit a lesser vote or no vote, but in addition to any affirmative vote of the holders of any series of Preferred Stock required by law, the affirmative vote of the holders of at least a majority in voting power of the outstanding voting capital stock of the Company, voting together as a single class, will be required to amend, alter, change or repeal, or adopt any provision inconsistent with, any of Article VII, Article VIII, this Article IX and Article X, or in each case, the definition of any capitalized terms used therein or any successor provision (including, without limitation, any such article or section as renumbered as a result of any amendment, alteration, change, repeal or adoption of any other provision of this Certificate of Incorporation). Any amendment, repeal or modification of any Article VII, Article VIII and this Article IX will not adversely affect any right or protection of any person existing thereunder with respect to any act or omission occurring prior to such amendment, repeal or modification.

ARTICLE X

FORUM SELECTION

Unless the Company consents in writing to the selection of an alternative forum, (a) the Court of Chancery (the ”Chancery Court”) of the State of Delaware (or, in the event that the Chancery Court does not have jurisdiction, the federal district court for the District of Delaware) will, to the fullest extent permitted by law, be the sole and exclusive forum for (i) any derivative action, suit or proceeding brought on behalf of the Company, (ii) any action, suit or proceeding asserting a claim of breach of a fiduciary duty owed by any director, officer, employee or stockholder of the Company to the Company or to the Company’s stockholders, (iii) any action, suit or proceeding arising pursuant to any provision of the DGCL or the Bylaws or this Certificate of Incorporation (as either may be amended and/or restated from time to time) or as to which the DGCL confers jurisdiction on the Chancery Court, or (iv) any action, suit or proceeding asserting a claim against the Company governed by the internal affairs doctrine; and (b) subject to the preceding provisions of this Article X, the federal district courts of the United States of America will be the exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act of 1933, as amended. If any action the subject matter of which is within the scope of clause (a) of the immediately preceding sentence is filed in a court other than the courts in the State of Delaware (a “Foreign Action”) in the name of any stockholder, such stockholder will be deemed to have consented to (1) the personal jurisdiction of the state and federal courts in the State of Delaware in connection with any action brought in any such court to enforce the provisions of clause (a) of the immediately preceding sentence and (2) having service of process made upon such stockholder in any such action by service upon such stockholder’s counsel in the Foreign Action as agent for such stockholder. Any person or entity purchasing or otherwise acquiring or holding any interest in any security of the Company will be deemed to have notice of and consented to this Article X. Notwithstanding the

foregoing, the provisions of this Article X will not apply to suits brought to enforce any liability or duty created by the Securities Exchange Act of 1934, as amended, or any other claim for which the federal courts of the United States have exclusive jurisdiction.

ARTICLE XI

SECTION 203

The Company shall not be governed by Section 203 of the DGCL (“Section 203”), and the restrictions contained in Section 203 shall not apply to the Company.

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