Document:

EX-10.9

 Exhibit 10.9 

GIGCAPITAL5, INC. 

STRATEGIC SERVICES AGREEMENT 

This, the “Strategic Services Agreement”, is made on
this                day of                , 2021 (the “Effective Date”),
by and between GigCapital5, Inc. whose current address is 1731 Embarcadero Road, Suite 200, Palo Alto, CA 94303 (the “Company”), and Walter Bradford Weightman, hereinafter referred to as the “Strategic
Consultant”, which expression shall unless it be repugnant to the context or meaning thereof, deemed to mean and include his heirs, legal representatives, liquidators, executors, successors and assigns. The Company and Strategic Consultant
are hereinafter referred to singly as a “Party” and together as the “Parties”. 
 WHEREAS, the
Strategic Consultant is being appointed by the Company to offer certain professional services as per requirement of the Company, on the terms and conditions as set forth below: 

NOW, THEREFORE, in consideration of the mutual covenants as set forth herein and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the Parties agree as follows: 
  

	 	1	 Services 

The Strategic Consultant shall be appointed by the Company in the capacity of “Chief Financial Officer” to render professional
services as requested by the Company from time to time, in areas related to the benefit of the business of the Company. The appointment is effective as of the Effective Date. 
  

	 	2	 Term 

The term of the Agreement shall be for a period of 1 YEAR commencing on the Effective Date unless terminated earlier by either
side pursuant to Section 3 below. The Company may renew the Agreement at its sole discretion. During the term of the Agreement, the Strategic Consultant shall report to Dr. Raluca Dinu, the President, Chief Executive Officer and Secretary
of the Company. 
  

	 	3	 Termination 

The Company or the Strategic Consultant may terminate this Agreement by giving 15 DAYS’ written notice to the other Party;
provided that either Party may terminate this Agreement immediately upon written notice to the other Party in the event of a material breach of this Agreement by such other Party. Upon such termination, the obligations of both Parties shall come to
an end (except those obligations that expressly survive the termination of this Agreement) and the Strategic Consultant shall immediately hand over to the Company, all documents, papers, data, confidential information or any other information
obtained by him during the course of the Agreement and shall fully co-operate with the Company to ensure a smooth and orderly transition of information, data and records to the Company. 

The Company shall be relieved of any obligation to pay the Strategic Consultant for any services except for those, which may have been
performed up to the date of termination. 
  

	 	4	 Relationship 

The Strategic Consultant shall perform the services hereunder as an independent contractor. Except as specifically set forth herein, nothing
contained in this Agreement shall be construed as creating a contract of employment or fiduciary relationship or partnership between the Parties. This Agreement does not authorize the Parties to assume, create or undertake any obligation of

 
any kind expressed or implied, on behalf of or in the name of any of the other Party without express written consent. The Strategic Consultant shall not have any right or authority to accept any
service of process or to receive any notices on behalf of the Company or to enter into any commitments, undertakings or agreements purporting to obligate the Company in any way or to amend, modify or vary any existing agreements to which the Company
is or shall be a party. 
  

	 	5	 Compliance with Laws 

The Strategic Consultant will be responsible for compliance with applicable United States federal and state laws, and the applicable laws of
any other country to which he may be deputed. The Strategic Consultant will indemnify the Company for all costs, including any interest, penalties and legal expenses and fees that the Company may incur as a result of the Strategic Consultant’s non-compliance with any laws. 
  

	 	6	 Taxes 

The Strategic Consultant shall be responsible for charging in the invoice and payment of any indirect taxes after recovery from the Company as
required by the regulations. All payments to the Strategic Consultant shall be subject to applicable United States federal, state and local taxes. 
  

	 	a.	 Insurance 

The Strategic Consultant shall be solely responsible for obtaining medical, accident and insurance policies and the Company shall have no
obligation or liability with respect to any expenses incurred by the Strategic Consultant relating to the above-referred risks. 
  

	 	7	 Compensation 

The Company shall pay to the Strategic Consultant a professional service compensation fee as mutually agreed to by the Company and the
Strategic Consultant, initially set at USD $2,500 (USD (Two Thousand Five Hundred) per month, but that is variable based on the expected scope of work, with such fee not to exceed USD $15,000 (USD Fifteen Thousand) per month for such
consulting services. The Company may pay to the Strategic Consultant additional compensation, as shall be mutually agreed between the Parties on a case-by-case basis if,
from time to time, the Company requests the Strategic Consultant to participate in investors meetings, activities and roadshows. The Company will reimburse the Strategic Consultant for any pre-approved
travel-related expenses incurred in connection with the provision of services hereunder, in writing in accordance with the Company’s standard policies and procedures in effect from time to time. 

The Strategic Consultant shall submit an invoice for the services rendered by him at the end of the calendar month and the Company shall make a
payment to the Strategic Consultant within 15 days from the date of receipt of the invoice. The Strategic Consultant shall submit all receipts evidencing expenses that require reimbursement for any and all business related expenses for the
furtherance and promotion of the Company and reimbursements will be made within 15 days of submittal. 
  

	 	8	 Confidentiality 

During the term of this Agreement and thereafter at all times, the Strategic Consultant shall keep strictly confidential all non-public information regarding the Company and its business, including information regarding any transactions or proposed transactions, records and information received by him from the Company and/or developed or
prepared by her, pursuant to this Agreement. The Strategic Consultant shall sign, or has signed, a Confidential Information and Invention Assignment Agreement (the “Confidentiality Agreement”), substantially in the

 
form attached as Exhibit A hereto, on or before the date hereof. In the event that Strategic Consultant is an entity or otherwise will be causing individuals in its employ or under its
supervision to participate in the rendering of the Services, Consultant warrants that it shall cause each of such individuals to execute a Confidentiality Agreement. 
  

	 	9	 Performance 

Failure on part of the Company, at any time, to require performance of any provisions of the obligations of the Strategic Consultant set forth
in this Agreement, shall not affect the right to require full performance thereof at any time thereafter. 
  

	 	10	 Engagement 

This Agreement is executed based on the individual professional expertise of the Strategic Consultant and the Strategic Consultant agrees not
to assign this Agreement or any rights or obligations hereunder, to any third party without prior written consent of the Company. 
  

	 	11	 Amendment 

No modification, deletion, amendment or variation of any term or provision of this Agreement shall be of any force or effect, unless stated in
writing and signed by the parties, or in case of a waiver, signed by the Party granting the waiver. No verbal agreement or understanding or conduct of any nature relating to the subject matter hereof shall be considered valid and enforceable. 

 

	 	12	 Notice 

Any notices required or permitted to be given hereunder shall be given in writing and shall be delivered (a) in person, (b) by
certified mail, postage prepaid, return receipt requested, (c) by facsimile, (d) e-mail, or (e) by a commercial overnight courier that guarantees next day delivery and provides a receipt, and
such notices shall be addressed as follows: 
 If to the Company: 

GigCapital5, Inc. 
 1731
Embarcadero Road, Suite 200, 
 Palo Alto, CA 94303 

Attn: Dr. Raluca Dinu, President 

and Chief Executive Officer 

If to the Strategic Consultant: 

Walter Bradford Weightman 

Email: [***] 
 Any notice shall
be effective only upon delivery, which for any notice given by facsimile shall mean notice that has been received by the Party to whom it is sent as evidenced by confirmation slip. 

 

	 	13	 Indemnification 

Subject to Section 15 below, the Strategic Consultant shall be entitled to indemnification by the Company pursuant to
an Indemnification Agreement being entered into between the Company and the Strategic Consultant on or about the date hereof. 

 The Strategic Consultant hereby agrees to indemnify and hold harmless the Company, its
partners, subsidiaries, affiliates, successors and assigns, and each of their officers, directors, agents, contractors, subcontractors and employees (collectively referred to as the “Indemnitees”), against and from any and all
claims, liabilities, damages, fines, penalties or costs of whatsoever nature (including reasonable attorneys’ fees), and whether by reason of death of or injury to any person or loss of or damage to any property or otherwise (and including,
without limitation, any tax or benefit liability, fines or penalties which may be claimed, asserted or imposed by any governmental authority based upon payment of fees to the Strategic Consultant), arising out of or in any way connected with
(i) this Agreement, (ii) the services to be provided by the Strategic Consultant pursuant to this Agreement, or (iii) any related act or failure to act by Strategic Consultant, whether or not contributed to by the negligence of any
Indemnitee or any agent or employee of any Indemnitees (except as and to the extent otherwise prohibited by applicable law). 
  

	 	14	 Other Obligations 

The Strategic Consultant represents and warrants to the Company that he currently is under no contract or agreement, nor has the Strategic
Consultant previously executed any documents whatsoever with any other person, firm, association, or corporation that will, in any manner, prevent the Strategic Consultant from providing the services contemplated under this Agreement. 

 

	 	15	 Waiver 

The Strategic Consultant understands that the Company will establish a trust account (the “Trust Account”), in the an amount
of approximately $260,000,000.00 (or $299,000,000 if the underwriters exercise their over-allotment) for the benefit of the Company’s public stockholders, and that the Company may disburse monies from the Trust Account only under the limited
circumstances to be set forth in the prospectus for the Company’s initial public offering. The Strategic Consultant hereby agrees that he does not have any right, title, interest or claim of any kind in or to any monies in the Trust Account
(“Claim”) and waives any Claim he may have in the future as a result of, or arising out of, any services provided to the Company hereunder and will not seek recourse against the Trust Account for any breach by the Company of this
Agreement or for any other reason. This section shall survive the termination of this Agreement for any reason. 
  

	 	16	 Miscellaneous 

 

	 	a.	 Entire Agreement. This Agreement constitutes the entire agreement and understanding
between the parties with respect to the Strategic Consultant’s engagement by the Company, and the other subject matters contained herein, expressly superseding all prior written, oral or implied agreements and understandings.

  

	 	b.	 Waiver. The waiver by any Party of any breach of any covenant or condition of this
Agreement shall not be construed as a waiver of any subsequent breach of such covenant or condition or of the breach of any other restrictive covenant or condition contained in this Agreement. 

 

	 	c.	 Headings. Any section or paragraph title or caption contained in this Agreement is for
convenience only, and in no way defines, limits or describes the scope or intent of this Agreement or any of the provisions hereof. 

  

	 	d.	 Successors. The Company may assign the rights and benefits given to it in this Agreement.
This Agreement shall also survive any sale of assets, merger, consolidation, or other change in the corporate structure of the Company. The duties of the Strategic Consultant hereunder are personal in nature and, therefore, may not be assigned.

	 	e.	 Severability. If any term, condition, or provision of this Agreement shall be found to be
illegal or unenforceable for any reason, such provision shall be modified or deleted so as to make the balance of this Agreement, as modified, valid and enforceable to the fullest extent permitted by applicable law. 

 

	 	f.	 Amendment or Modifications. This agreement shall not be amended, revoked, altered or
modified in whole or in part, except by an agreement in writing signed by the parties. 

  

	 	g.	 Governing Law. All questions relating to the interpretation, performance or breach of this
Agreement shall be governed by the law of the State of California. Any action relating to this Agreement or the performance of the Strategic Consultant’s services hereunder shall be filed exclusively in either the Federal or Superior Court of
the County of Santa Clara. The Company and the Strategic Consultant consent to exclusive venue in these courts and waive any possible objection thereto. 

  

	 	h.	 Construction. This Agreement shall not be construed against any Party by reason of the
fact that the Party may be responsible for the drafting of this Agreement or any provision hereof. 

  

	 	i.	 Knowledge of Rights and Duties. The Parties have carefully reviewed and completely read
all of the provisions of this Agreement and understand and have been advised that they should consult with their own legal counsel for any and all explanations of their rights, duties, obligations and responsibilities hereunder.

  

	 	j.	 Survival. The provisions of Sections 3 through 11, 15 and 16 of this Agreement shall survive the
termination or expiration, for any reason, of this Agreement. 

 IN WITNESS WHEREOF, the Parties have executed this
Agreement as of the first date set forth above. 
  

			
	GIGCAPITAL5, INC.
		
	By:	 	  

	Name:	 	Dr. Raluca Dinu
	Title:	 	President and Chief Executive Officer
	
	STRATEGIC CONSULTANT:
		
	By:	 	  

	Name:	 	Walter Bradford Weightman

 Signature page to Strategic Services Agreement 

 GIGCAPITAL5, INC. 

CONFIDENTIAL INFORMATION AND 

INVENTION ASSIGNMENT AGREEMENT 

As a condition of my becoming retained as a consultant (or my consulting relationship being continued) by GigCapital5, Inc., a Delaware
corporation (“GigCapital5”), or any of its current or future subsidiaries, affiliates, successors or assigns (collectively, the “Company”), and in consideration of my consulting relationship with the Company and my
receipt of the compensation now and hereafter paid to me by the Company, I agree to the following: 
 1. Consulting
Relationship. I understand and acknowledge that this Agreement does not alter, amend or expand upon any rights I may have to continue in a consulting relationship with, or in the duration of my consulting relationship with, the
Company under any existing agreements between the Company and me, including but not limited to the consulting agreement entered into by and between the Company and me,
dated                 , 2021 (the “Consulting Agreement”) or under applicable law. Any consulting relationship between the Company and me, whether
commenced prior to or upon the date of this Agreement, shall be referred to herein as the “Relationship.” 
 2.
Confidential Information. 
 (a) Company Information. I agree at all times during the term of my
Relationship with the Company and thereafter, to hold in strictest confidence, and not to use, except for the benefit of the Company to the extent necessary to perform my obligations to the Company under the Relationship, or to disclose to any
person, firm, corporation or other entity without written authorization of the Chief Executive Officer of the Company, any Confidential Information of the Company. I further agree not to make copies of such Confidential Information except as
authorized by the Company. I understand that “Confidential Information” means any Company proprietary information, technical data, trade secrets or know-how, including, but not limited to,
research, product plans, products, services, suppliers, customer lists and customers (including, but not limited to, customers of the Company on whom I called or with whom I became acquainted during the Relationship), prices and costs, markets,
software, developments, inventions, laboratory notebooks, processes, formulas, technology, designs, drawings, engineering, hardware configuration information, marketing, licenses, finances, budgets or other business information disclosed to me by
the Company either directly or indirectly in writing, orally or by drawings or observation of parts or equipment or created by me during the period of the Relationship, whether or not during working hours. I understand that Confidential Information
includes, but is not limited to, information pertaining to any aspect of the Company’s business which is either information not known by actual or potential competitors of the Company or other third parties not under confidentiality obligations
to the Company, or is otherwise proprietary information of the Company or its customers or suppliers, whether of a technical nature or otherwise. I further understand that Confidential Information does not include any of the foregoing items which
has become publicly and widely known, and made generally available, to third parties through no wrongful act of mine or of others who were under confidentiality obligations as to the item or items involved. 

(b) Prior Obligations. I represent that my performance of all terms of this Agreement as a consultant of the Company has
not breached and will not breach any agreement to keep in confidence proprietary information, knowledge or data acquired by me prior or subsequent to the commencement of my Relationship with the Company, and I will not disclose to the Company, or
use, any inventions, confidential or non-public proprietary information or material belonging to any current or former client or employer or any other party. I will not induce the Company to use any
inventions, confidential or non-public proprietary information or material belonging to any current or former client or employer or any other party. 

(c) Third Party Information. I recognize that the Company has received and in the future will receive confidential or
proprietary information from third parties subject to a duty on the Company’s part to maintain the confidentiality of such information and to use it only for certain limited purposes. I agree to hold all such confidential or proprietary
information in the strictest confidence and not to disclose it to any person, firm or corporation or to use it except as necessary in carrying out my work for the Company consistent with the Company’s agreement with such third party. 

 3. Inventions. 

(a) Inventions Retained and Licensed. I have attached hereto, as Exhibit A, a list describing with particularity
all inventions, original works of authorship, developments, improvements, and trade secrets which were made by me prior to the commencement of the Relationship (collectively referred to as “Prior Inventions”), which belong solely to
me or belong to me jointly with another, which relate in any way to any of the Company’s proposed businesses, products or research and development, and which are not assigned to the Company hereunder; or, if no such list is attached, I
represent that there are no such Prior Inventions. If, in the course of my Relationship with the Company, I incorporate into a Company product, process or machine a Prior Invention owned by me or in which I have an interest, the Company is hereby
granted and shall have a non-exclusive, royalty-free, irrevocable, perpetual, worldwide license (with the right to sublicense) to make, have made, copy, modify, make derivative works of, use, sell and
otherwise distribute such Prior Invention as part of or in connection with such product, process or machine. 
 (b) Assignment of
Inventions. I agree that I will promptly make full written disclosure to the Company, will hold in trust for the sole right and benefit of the Company, and hereby assign to the Company, or its designee, all my right, title and
interest throughout the world in and to any and all inventions, original works of authorship, developments, concepts, know-how, improvements or trade secrets, whether or not patentable or registrable under
copyright or similar laws, which I may solely or jointly conceive or develop or reduce to practice, or cause to be conceived or developed or reduced to practice, during the period of time in which I am employed by or a consultant of the Company
(collectively referred to as “Inventions”), except as provided in Section 3(e) below. 
 (c) Maintenance of
Records. I agree to keep and maintain adequate and current written records of all Inventions made by me (solely or jointly with others) during the term of my Relationship with the Company. The records may be in the form of notes,
sketches, drawings, flow charts, electronic data or recordings, laboratory notebooks, and any other format. The records will be available to and remain the sole property of the Company at all times. I agree not to remove such records from the
Company’s place of business except as expressly permitted by Company policy which may, from time to time, be revised at the sole election of the Company for the purpose of furthering the Company’s business. I agree to return all such
records (including any copies thereof) to the Company at the time of termination of my Relationship with the Company as provided for in Section 4. 

(d) Patent and Copyright Rights. I agree to assist the Company or its designee, at its expense, in every proper way to
secure the Company’s, or its designee’s, rights in the Inventions and any copyrights, patents, trademarks, mask work rights, moral rights, or other intellectual property rights relating thereto in any and all countries, including the
disclosure to the Company or its designee of all pertinent information and data with respect thereto, the execution of all applications, specifications, oaths, assignments, recordations, and all other instruments which the Company or its designee
shall deem necessary in order to apply for, obtain, maintain and transfer such rights, or if not transferable, waive such rights, and in order to assign and convey to the Company or its designee and any successors, assigns and nominees the sole and
exclusive rights, title and interest in and to such Inventions, and any copyrights, patents, mask work rights or other intellectual property rights relating thereto. I further agree that my obligation to execute or cause to be executed, when it is
in my power to do so, any such instrument or papers shall continue after the termination of this Agreement until the expiration of the last such intellectual property right to expire in any country of the world. If the Company or its designee is
unable because of my mental or physical incapacity or unavailability or for any other reason to secure my signature to apply for or to pursue any application for any United States or foreign patents, copyright, mask works, or other registrations
covering Inventions or original works of authorship assigned to the Company or its designee as above, then I hereby irrevocably designate and appoint the Company and its duly authorized officers and agents as my agent and attorney in fact, to act
for and in my behalf and stead to execute and file any such applications and to do all other lawfully permitted acts to further the application for, prosecution, issuance, maintenance or transfer of letters patent, copyright or other registrations
thereon with the same legal force and effect as if originally executed by me. I hereby waive and irrevocably quitclaim to the Company or its designee any and all claims, of any nature whatsoever, which I now or hereafter have for infringement of any
and all proprietary rights assigned to the Company or such designee. 
 (e) Exception to Assignments. I understand that,
notwithstanding the terms of the Consulting Agreement, in the event my Relationship with the Company is at any time determined to be that of an employee for the purposes of California Labor Code Section 2870, the provisions of this Agreement
requiring assignment of Inventions to the Company do not apply to any invention which qualifies fully under the provisions of California Labor Code Section 2870 (attached hereto as Exhibit B). I will advise the Company promptly in
writing of any inventions that I believe meet such provisions and are not otherwise disclosed on Exhibit A. 

 4. Company Property; Returning Company Documents. I acknowledge and
agree that I have no expectation of privacy with respect to the Company’s telecommunications, networking or information processing systems (including, without limitation, stored company files, e-mail
messages and voice messages) and that my activity and any files or messages on or using any of those systems may be monitored at any time without notice. I further agree that any property situated on the Company’s premises and owned by the
Company, including disks and other storage media, filing cabinets or other work areas, is subject to inspection by Company personnel at any time with or without notice. I agree that, at the time of termination of my Relationship with the Company, I
will deliver to the Company (and will not keep in my possession, recreate or deliver to anyone else) any and all devices, records, data, notes, reports, proposals, lists, correspondence, specifications, drawings, blueprints, sketches, laboratory
notebooks, materials, flow charts, equipment, other documents or property, or reproductions of any of the aforementioned items, developed by me pursuant to the Relationship or otherwise belonging to the Company, its successors or assigns. In the
event of the termination of the Relationship, I agree to sign and deliver the “Termination Certification” attached hereto as Exhibit C, however, my failure to sign and deliver the Termination Certificate shall in no way
diminish my continuing obligations under this Agreement. 
 5. Notification to Other Parties. I hereby grant consent to
notification by the Company to any other parties besides the Company with whom I maintain a consulting or employment relationship, including parties with whom such relationship commences after the effective date of this Agreement, about my rights
and obligations under this Agreement. 
 6. Solicitation of Employees, Consultants and Other Parties. I agree that
during the term of my Relationship with the Company, and for a period of twenty-four months immediately following the termination of my Relationship with the Company for any reason, whether with or without cause, I shall not either directly or
indirectly solicit, induce, recruit or encourage any of the Company’s employees or consultants to terminate their relationship with the Company, or attempt to solicit, induce, recruit, encourage or take away employees or consultants of the
Company, either for myself or for any other person or entity. Further, during my Relationship with the Company and at any time following termination of my Relationship with the Company for any reason, with or without cause, I shall not use any
information rising to the level of a trade secret of the Company: (i) to attempt to negatively influence any of the Company’s clients or customers from purchasing Company products or services; (ii) to solicit or influence or attempt
to influence any client, customer or other person either directly or indirectly; or, (iii) to direct any of the Company’s clients or customers to purchase products and/or services – from any person, firm, corporation, institution or
other entity in competition with the business of the Company. 
 7. Representations and Covenants. 

(a) Facilitation of Agreement. I agree to execute promptly any proper oath or verify any proper document required to carry
out the terms of this Agreement upon the Company’s written request to do so. 
 (b) Conflicts. I represent that my
performance of all the terms of this Agreement does not and will not breach any agreement I have entered into, or will enter into with any third party, including without limitation any agreement to keep in confidence proprietary information acquired
by me in confidence or in trust prior to commencement of my Relationship with the Company. I represent that I do not presently perform or intend to perform, during the term of the Consulting Agreement, consulting or other services for, and I am not
presently employed by and have no intention of being employed by, companies whose businesses or proposed businesses in any way involve products or services which would be competitive with the Company’s products or services, or those products or
services proposed or in development by the Company during the term of the Consulting Agreement (except for those companies, if any, listed on Exhibit D attached hereto). If, however, I decide to do so, I agree that, in advance of accepting
such employment or agreeing to perform such services, I will promptly notify the Company in writing, specifying the organization with which I propose to consult, become employed by, or otherwise provide services to, and provide information
sufficient to allow the Company to determine if such work would conflict with the interests of the Company or further services which the Company might request of me. 

(c) Voluntary Execution. I certify and acknowledge that I have carefully read all of the provisions of this Agreement and
that I understand and will fully and faithfully comply with such provisions. 
 8. General Provisions. 

(a) Governing Law. The validity, interpretation, construction and performance of this Agreement shall be governed by the
laws of the State of California, without giving effect to the principles of conflict of laws. 

 (b) Entire Agreement. This Agreement sets forth the entire agreement
and understanding between the Company and me relating to the subject matter herein and merges all prior discussions between us. No modification or amendment to this Agreement, nor any waiver of any rights under this Agreement, will be effective
unless in writing signed by both parties. 
 (c) Severability. If any term or provision of this Agreement or the
application thereof to any circumstance shall, in any jurisdiction and to any extent, be invalid or unenforceable, such term or provision shall be ineffective as to such jurisdiction to the extent of such invalidity or unenforceability without
invalidating or rendering unenforceable the remaining terms and provisions of this Agreement or the application of such terms and provisions to circumstances other than those as to which it is held invalid or unenforceable, and a suitable and
equitable term or provision shall be substituted therefor to carry out, insofar as may be valid and enforceable, the intent and purpose of the invalid or unenforceable term or provision. In the event that any court or government agency of competent
jurisdiction determines that, notwithstanding the terms of the Consulting Agreement specifying my Relationship with the Company as that of an independent contractor, my provision of services to the Company is not as an independent contractor but
instead as an employee under the applicable laws, then solely to the extent that such determination is applicable, references in this Agreement to the Relationship between me and the Company shall be interpreted to include an employment
relationship, and this Agreement shall not be invalid and unenforceable but shall be read to the fullest extent as may be valid and enforceable under the applicable laws to carry out the intent and purpose of the Agreement. 

(d) Successors and Assigns. This Agreement will be binding upon my heirs, executors, administrators and other legal
representatives, and my successors and assigns, including, in the event that Consultant is an entity, any successor entity, and will be for the benefit of the Company, its successors, and its assigns. 

(e) Survival. The provisions of this Agreement shall survive the termination of the Relationship and the assignment of
this Agreement by the Company to any successor in interest or other assignee. 
 (f) Remedies. I acknowledge and agree that
violation of this Agreement by me may cause the Company irreparable harm, and therefore agree that the Company will be entitled to seek extraordinary relief in court, including but not limited to temporary restraining orders, preliminary injunctions
and permanent injunctions without the necessity of posting a bond or other security and in addition to and without prejudice to any other rights or remedies that the Company may have for a breach of this Agreement. 

(g) Attorneys’ Fees. If any action, suit, arbitration or other proceeding for the enforcement of this Agreement is
brought with respect to or because of an alleged dispute, breach, default or misrepresentation in connection with any of the provisions hereof, the successful or prevailing party shall be entitled to recover reasonable attorneys’ fees and other
costs incurred in that proceeding, in addition to any other relief to which it may be entitled. 
 (h) ADVICE OF
COUNSEL. I ACKNOWLEDGE THAT, IN EXECUTING THIS AGREEMENT, I HAVE HAD THE OPPORTUNITY TO SEEK THE ADVICE OF INDEPENDENT LEGAL COUNSEL, AND I HAVE READ AND UNDERSTOOD ALL OF THE TERMS AND PROVISIONS OF THIS AGREEMENT. THIS AGREEMENT
SHALL NOT BE CONSTRUED AGAINST ANY PARTY BY REASON OF THE DRAFTING OR PREPARATION HEREOF. 
 [Signature Page Follows] 

 The parties have executed this Agreement on the respective dates set forth below: 

 

									
	GIGCAPITAL5, INC.	  		  	CONSULTANT:
		 		  		  	Walter Bradford Weightman, an Individual
					
	By:	 	
                    
     
	  		  	By:	 	
                    
 

	Name: Dr. Raluca Dinu	  		  		 	
	Title: Chief Executive Officer	  		  		 	

  

									
	Date:	  	            , 2021	  		  	Date:	  	            , 2021
	Address:	  	1731 Embarcadero Road, Suite 200,	  		  	Address:	  	 [***]

		  	Palo Alto, CA 94303EX-10.11

 Exhibit 10.11 

GigCapital5, Inc. 
 1731
Embarcadero Road, Suite 200, 
 Palo Alto, CA 94303 

, 2021 
 GigManagement, LLC 

1731 Embarcadero Road, Suite 200, 
 Palo Alto, CA 94303 

Re: Administrative Services Agreement 

Gentlemen: 
 This letter will confirm our
agreement that, commencing on the date the securities of GigCapital5, Inc. (the “Company”) are first listed on the New York Stock Exchange (the “Listing Date”), pursuant to a Registration Statement on Form S-1 and prospectus filed with the Securities and Exchange Commission (the “Registration Statement”) and continuing until the earlier of the consummation by the Company of an initial
business combination or the Company’s liquidation (in each case as described in the Registration Statement) (such earlier date hereinafter referred to as the “Termination Date”), GigManagement, LLC
(“GigManagement”) shall make available to the Company, at 1731 Embarcadero Road, Suite 200, Palo Alto, CA 94303 (or any successor location), certain office space, utilities, and general office, receptionist and secretarial support
and other administrative services as may be reasonably required by the Company. In exchange therefor, the Company shall pay GigManagement the sum of $30,000 per month on the Listing Date and continuing monthly thereafter and will be entitled to
be reimbursed for any out-of-pocket expenses until the Termination Date. 

GigManagement hereby irrevocably waives any and all right, title, interest, causes of action and claims of any kind (each, a
“Claim”) in or to, and any and all right to seek payment of any amounts due to it out of, the trust account established for the benefit of the public stockholders of the Company and into which substantially all of the proceeds of
the Company’s initial public offering will be deposited (the “Trust Account”), and hereby irrevocably waives any Claim it may have in the future as a result of, or arising out of, this agreement, which Claim would reduce,
encumber or otherwise adversely affect the Trust Account or any monies or other assets in the Trust Account, and further agrees not to seek recourse, reimbursement, payment or satisfaction of any Claim against the Trust Account or any monies or
other assets in the Trust Account for any reason whatsoever. 
 This letter agreement constitutes the entire agreement and understanding of
the parties hereto in respect of its subject matter and supersedes all prior understandings, agreements, or representations by or among the parties hereto, written or oral, to the extent they relate in any way to the subject matter hereof or the
transactions contemplated hereby. 
 This letter agreement may not be amended, modified or waived as to any particular provision, except by
a written instrument executed by all parties hereto. 
 No party hereto may assign either this letter agreement or any of its rights,
interests, or obligations hereunder without the prior written approval of the other party. Any purported assignment in violation of this paragraph shall be void and ineffectual and shall not operate to transfer or assign any interest or title to the
purported assignee. 
 [Signature page follows] 

 This letter agreement, the entire relationship of the parties hereto, and any litigation
between the parties (whether grounded in contract, tort, statute, law or equity) shall be governed by, construed in accordance with, and interpreted pursuant to the laws of the State of New York, without giving effect to its choice of laws
principles. 
  

			
	Very truly yours,
	
	GIGCAPITAL5, INC.
		
	By:	 	
                     
                                

		 	Name: Dr. Raluca Dinu
		 	Title: Chief Executive Officer, President, and Secretary

 AGREED TO AND ACCEPTED BY: 

GIGMANAGEMENT, LLC 
  

			
	 By:
	 	  

		 	 Name: Dr. Avi S. Katz

		 	 Title: Managing Member

 [Signature Page to Administrative Services Agreement]

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