Exhibit 10.29

SPONSOR DESIGNEE RECOMMENDATION AGREEMENT

This SPONSOR DESIGNEE RECOMMENDATION AGREEMENT (this “Agreement”), dated as of May 21, is entered into by and between ConforMIS, Inc. (the “Company”) and Procific (the “Sponsor”).

RECITALS

WHEREAS, the Company is currently contemplating an underwritten public offering (the “IPO”) of shares of Common Stock; and

WHEREAS, in connection with, and effective upon, completion of the IPO, the Company and the Sponsor wish to set forth certain understandings between such parties, including with respect to certain matters related to the Board.

NOW, THEREFORE, in consideration of the mutual covenants contained herein and for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows:

ARTICLE I

DEFINITIONS

Section 1.1 Certain Definitions. As used in this Agreement, the following terms shall have the following meanings:

“2017 Annual Meeting” means the Company’s annual meeting of stockholders held in 2017.

“Affiliate” of a specified Person is a Person that directly, or indirectly through one or more intermediaries, Controls, is Controlled by, or is under common Control with, the Person specified.

“Agreement” has the meaning set forth in the preamble to this Agreement.

“Beneficial Owner” of a security is a Person who directly or indirectly, through any contract, arrangement, understanding, relationship or otherwise has or shares (i) voting power, which includes the power to vote, or to direct the voting of, such security and/or (ii) investment power, which includes the power to dispose, or to direct the disposition of, such security. The terms “Beneficially Own” and “Beneficial Ownership” shall have correlative meanings.

“Board” means the Board of Directors of the Company.

“Change of Control” means the occurrence of any one of the following: (i) any “person”, as such term is used in Section 13(d) and 14(d) of the Exchange Act (other than the Company, a Subsidiary, an Affiliate, or a Company employee benefit plan, including any trustee of such plan acting as trustee) is or becomes the “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of securities of the Company representing 50% or more of

the combined voting power of the Company’s then outstanding securities; or (ii) a sale of assets involving 75% or more of the fair market value of the assets of the Company as determined in good faith by the Board; or (iii) any merger, reorganization or other transaction of the Company whether or not another entity is the survivor, pursuant to which holders of all the shares of capital stock of the Company outstanding prior to the transaction hold, as a group, less than 50% of the shares of capital stock of the Company outstanding after the transaction; provided, however, that neither (A) a merger effected exclusively for the purpose of changing the domicile of the Company in which the holders of all the shares of capital stock of the Company immediately prior to the merger hold the voting power of the surviving entity following the merger in the same relative amounts with substantially the same rights, preferences and privileges, nor (B) a transaction the primary purpose of which is to raise capital for the Company, will constitute a Change of Control.

“Common Stock” means the common stock, par value $0.00001 per share, of the Company.

“Company” has the meaning set forth in the preamble to this Agreement.

“Control” (including the terms “Controlling,” “Controlled by” and “under common Control with”) means the possession, direct or indirect, of the power to (a) direct or cause the direction of the management and policies of a Person, whether through the ownership of voting securities, by contract or otherwise or (b) vote 10% or more of the securities having ordinary voting power for the election of directors of a Person.

“Exchange Act” means the Securities Exchange Act of 1934, as amended.

“IPO” has the meaning set forth in the recitals to this Agreement.

“Person” means any individual, corporation, firm, partnership, joint venture, limited liability company, estate, trust, business association, organization, any court, administrative agency, regulatory body, commission or other governmental authority, board, bureau or instrumentality, domestic or foreign and any subdivision thereof or other entity, and also includes any managed investment account.

“Proceeding” has the meaning set forth in Section 4.6 of this Agreement.

“Recommended Individual” has the meaning set forth in Section 2.1 of this Agreement.

“Selected Courts” has the meaning set forth in Section 4.6 of this Agreement.

“Subsidiary” of any Person means any Person (i) of which a majority of the outstanding voting securities or other voting equity interests are owned, directly or indirectly, by such first Person or any Subsidiary of such first Person or (ii) with respect to which such Person or any of its Subsidiaries is a general partner or managing member or is allocated or has the right to be allocated (through partnership interests or otherwise) a majority of such second Person’s gains or losses.

Section 1.2 Rules of Construction. Unless the context otherwise requires:

(a) References in the singular or to “him,” “her,” “it,” “itself” or other like references, and references in the plural or the feminine or masculine reference, as the case may be, shall also, when the context so requires, be deemed to include the plural or singular, or the masculine or feminine reference, as the case may be;

(b) References to Articles and Sections shall refer to articles and sections of this Agreement, unless otherwise specified;

(c) The headings in this Agreement are for convenience and identification only and are not intended to describe, interpret, define or limit the scope, extent or intent of this Agreement or any provision thereof;

(d) This Agreement shall be construed without regard to any presumption or other rule requiring construction against the party that drafted and caused this Agreement to be drafted; and

(e) References to “including” in this Agreement shall mean “including, without limitation,” whether or not so specified.

ARTICLE II

SPONSOR DESIGNEE RECOMMENDATION

Section 2.1 Sponsor Designee Recommendation.

(a) Subject to the terms and conditions hereof, in the event that Colm Lanigan should cease to serve as a member of the Board prior to the expiration of his term upon the commencement of the 2017 Annual Meeting, prior to filling such vacancy, the Company will provide the Sponsor with an opportunity to recommend to the Nominating and Corporate Governance Committee of the Board an individual to fill the vacancy created by such cessation and to serve for the balance of Mr. Lanigan’s incompleted term (such recommended individual, the “Recommended Individual”); provided, however, that the Sponsor shall no longer have the rights set forth hereunder at such time as the Sponsor and its Affiliates collectively Beneficially Own less than 5% of the outstanding shares of Common Stock.

(b) Each Recommended Individual must satisfy the requirements of applicable law and the independence requirements imposed by the rules of any national securities exchange on which the Common Stock may be listed or traded.

ARTICLE III

EFFECTIVENESS AND TERMINATION

Section 3.1 Effectiveness. Upon the closing of the IPO, this Agreement shall thereupon be deemed to be effective.

Section 3.2 Termination. Unless earlier terminated in accordance with the terms hereof, this Agreement shall terminate upon the earlier to occur of (a) a Change of Control, (b) the delivery of written notice to the Company by the Sponsor requesting the termination of this Agreement, (c) the commencement of the 2017 Annual Meeting and (d) on the date that is three months

following the date of this Agreement in the event that the Company has not consummated the IPO prior to such date.

ARTICLE IV

MISCELLANEOUS

Section 4.1 Notices. All notices, requests, consents and other communications hereunder to any party shall be in writing and shall be personally delivered, sent by nationally recognized overnight courier or mailed by registered or certified mail to such party at the address set forth below (or such other address as shall be specified by like notice). Notices will be deemed to have been given hereunder when personally delivered, one calendar day after deposit with a nationally recognized overnight courier and five calendar days after deposit in U.S. mail.

(a) if to the Company, to:

ConforMIS, Inc.

28 Crosby Drive

Bedford, MA 01730

Attention: President

(b) if to the Sponsor, to: [ ].

Section 4.2 Severability. The provisions of this Agreement shall be deemed severable, and the invalidity or unenforceability of any provision shall not affect the validity or enforceability of the other provisions hereof. If any provision of this Agreement, or the application thereof to any Person or any circumstance, is found to be invalid or unenforceable in any jurisdiction, (a) a suitable and equitable provision shall be substituted therefor in order to carry out, so far as may be valid and enforceable, the intent and purpose of such invalid or unenforceable provision and (b) the remainder of this Agreement and the application of such provision to other Persons or circumstances shall not be affected by such invalidity or unenforceability, nor shall such invalidity or unenforceability affect the validity or enforceability of such provision, or the application thereof, in any other jurisdiction.

Section 4.3 Counterparts. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original and all of which, taken together, shall be considered one and the same agreement.

Section 4.4 Entire Agreement; No Third Party Beneficiaries. This Agreement (a) constitutes the entire agreement and supersedes all other prior agreements, both written and oral, among the parties with respect to the subject matter hereof and (b) is not intended to confer upon any Person, other than the parties hereto, any rights or remedies hereunder.

Section 4.5 Governing Law; Equitable Remedies. THIS AGREEMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF DELAWARE (WITHOUT GIVING EFFECT TO CONFLICT OF LAWS PRINCIPLES THEREOF). The parties hereto agree that irreparable damage would occur in the event that any of the provisions of this Agreement were not performed in accordance with its specific terms or was otherwise breached. It is accordingly agreed that the parties hereto shall be entitled to an injunction or injunctions and other equitable remedies to prevent breaches of this Agreement and to enforce specifically the terms and provisions hereof in any of the Selected Courts, this being in addition to any other remedy to which they are entitled at law or in equity. Any requirements for the securing or posting of any bond with respect to such remedy are hereby waived by each of the parties hereto. Each party further agrees that, in the event of any action for an injunction or other equitable remedy in respect of such breach or enforcement of specific performance, it will not assert the defense that a remedy at law would be adequate.

Section 4.6 Consent To Jurisdiction. With respect to any suit, action or proceeding (“Proceeding”) arising out of or relating to this Agreement, each of the parties hereto hereby irrevocably (a) submits to the exclusive jurisdiction of the Court of Chancery of the State of Delaware and the United States District Court for the District of Delaware and the appellate courts therefrom (the “Selected Courts”) and waives any objection to venue being laid in the Selected Courts whether based on the grounds of forum non conveniens or otherwise and hereby agrees not to commence any such Proceeding other than before one of the Selected Courts; provided, however, that a party may commence any Proceeding in a court other than a Selected Court solely for the purpose of enforcing an order or judgment issued by one of the Selected Courts; (b) consents to service of process in any Proceeding by the mailing of copies thereof by registered or certified mail, postage prepaid, or by recognized international express carrier or delivery service, to the Company or the Sponsor at their respective addresses referred to in Section 4.1 hereof; provided, however, that nothing herein shall affect the right of any party hereto to serve process in any other manner permitted by law; and (c) TO THE EXTENT NOT PROHIBITED BY APPLICABLE LAW THAT CANNOT BE WAIVED, WAIVES, AND COVENANTS THAT IT WILL NOT ASSERT (WHETHER AS PLAINTIFF, DEFENDANT OR OTHERWISE) ANY RIGHT TO TRIAL BY JURY IN ANY ACTION ARISING IN WHOLE OR IN PART UNDER OR IN CONNECTION WITH THIS AGREEMENT, WHETHER NOW EXISTING OR HEREAFTER ARISING, AND WHETHER SOUNDING IN CONTRACT, TORT OR OTHERWISE, AND AGREES THAT EITHER OF THEM MAY FILE A COPY OF THIS PARAGRAPH WITH ANY COURT AS WRITTEN EVIDENCE OF THE KNOWING, VOLUNTARY AND BARGAINED-FOR AGREEMENT AMONG THE PARTIES IRREVOCABLY TO WAIVE THE RIGHT TO TRIAL BY JURY IN ANY PROCEEDING WHATSOEVER BETWEEN THEM RELATING TO THIS AGREEMENT AND TO HAVE ALL MATTERS RELATING TO THIS AGREEMENT BE TRIED IN A COURT OF COMPETENT JURISDICTION BY A JUDGE SITTING WITHOUT A JURY.

Section 4.7 Amendments; Waivers.

(a) No provision of this Agreement may be amended or waived unless such amendment or waiver is in writing and signed, in the case of an amendment, by each of the parties hereto, or in the case of a waiver, by the party against whom the waiver is to be effective.

(b) No failure or delay by a party in exercising any right, power or privilege hereunder shall operate as waiver thereof nor shall any single or partial exercise thereof preclude any other or further exercise thereof or the exercise of any other right, power or privilege. The rights and remedies herein provided shall be cumulative and not exclusive of any rights or remedies provided by law.

Section 4.8 Assignment. Neither this Agreement nor any of the rights or obligations hereunder shall be assigned by either of the parties hereto without the prior written consent of the other party. Subject to the preceding sentence, this Agreement will be binding upon, inure to the benefit of and be enforceable by the parties and their respective successors and assigns.

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IN WITNESS WHEREOF, the parties have caused this Agreement to be duly executed and delivered, all as of the date first set forth above.

	CONFORMIS, INC.

	By:	/s/ Philipp Lang
	Name: Philipp Lang
	Title: Chief Executive Officer


	PROCIFIC

	By:	/s/ Ahmed Abdullatif Ahmed Ibrahim Al Mosa
	Name: Ahmed Abdullatif Ahmed Ibrahim Al Mosa
	Title: Authorized Signatory

	By:	/s/ Saeed Musallan Khamis AlMazrovel
	Name: Saeed Musallan Khamis AlMazrovel
	Title: Authorized Signatory