Company: CGCT
Filing Date: 2025-03-05
Form Type: CORRESP
Source: 0001104659-25-020971
Chunk: 0

Company: Cartesian Growth Corp III
Filing Date: 2025-03-05
Form: CORRESP
Chunk 0
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Thomas R. Martin, Esq.

Tel 305.579.0739

thomas.martin@gtlaw.com

March 5, 2025

U.S. Securities and Exchange Commission

Division of Corporation Finance

Office of Real Estate & Construction

100 F Street NE

Washington, D.C. 20549-3561

| Attn: | Catherine De Lorenzo |
|       | Dorrie Yale          |

| Re: | Cartesian Growth Corporation III |

| Registration Statement on Form S-1 
 Filed January 29, 2025             |
|:-----------------------------------|
| File No. 333-284565                |

Dear Ms. De Lorenzo and Ms. Yale:

On behalf of Cartesian Growth
Corporation III (the “Company”), we are hereby responding to the comments of the staff (the “Staff”) of the U.S.
Securities and Exchange Commission (the “Commission”) set forth in the Staff’s letter dated February 25, 2025 (the “Comment
Letter”) with respect to the above referenced Registration Statement on Form S-1, filed with the Commission by the Company on January
29, 2025 (the “Registration Statement”).

The Company is concurrently
filing with the Commission this letter and Amendment No. 1 to the Registration Statement (“Amendment No. 1”), which reflects
the Company’s responses to the comments received by the Staff and certain updated information. For ease of reference, the text of
each of the Staff’s comments, as set forth in the Comment Letter, is included in bold-face type below, followed by the Company’s
response. All page references in the responses set forth below refer to page numbers in Amendment No. 1. Capitalized terms used but not
defined herein have the meanings set forth in Amendment No. 1.

Registration Statement on Form S-1

Cover page

| 1. | We note your disclosure on page 18 and elsewhere that if you increase or decrease the size of the offering                                
 pursuant to Rule 462(b) under the Securities Act, you will effect a share capitalization or other mechanism with respect to your Class    
 B shares so as to maintain the ownership of founder shares by the initial shareholders, on an as converted basis, at approximately 20%    
 of your issued and outstanding ordinary shares upon consummation of the offering. Please disclose this information, as well as the number 
 of founder shares to be issued to your independent directors, on the cover page. Please