Company: WBI
Filing Date: 2025-09-17
Form Type: 8-A12B
Source: 0001193125-25-205450
Chunk: 0

Company: WaterBridge Infrastructure LLC
Filing Date: 2025-09-17
Form: 8-A12B
Chunk 0
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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
PURSUANT TO SECTION 12(b) OR 12(g) OF
THE SECURITIES EXCHANGE ACT OF 1934 WATERBRIDGE INFRASTRUCTURE LLC (Exact Name of Registrant as Specified in its Charter)

| Delaware                          |     | 33-4546086         |
| (State or other jurisdiction      
 of incorporation or organization) |     | -IRS Employer      
 Identification No. |

5555 San Felipe Street, Suite 1200
Houston, Texas 77056 (Address of principal executive offices and zip code) Securities to be registered pursuant to Section 12(b) of the Act:

| Title of each classto be so registered                          |     | Name of each exchange on whicheach class is to be registered |
| Class A shares representing limited liability company interests |     | NYSE Texas, Inc.                                             |

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c), check the following box. ☒ If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d), check the following box. ☐ Securities Act registration statement file number to which this form relates: 333-289823 Securities to be registered pursuant to Section 12(g) of the Act: None.

<div align='center'>information required in registration statement</div>

Item 1. Description of Registrant’s Securities to be Registered.

The class of securities to be registered hereby is the Class A shares representing limited liability company interests (the “Class ACommon Shares”) of WaterBridge Infrastructure LLC, a Delaware limited liability company (the “Registrant”).

A description of the Class A Common Shares is set forth under the captions “Summary” and “Description of Shares” in the prospectus to be filed by the Registrant pursuant to Rule 424(b) under the Securities Act of 1933, as amended, which prospectus will constitute a part of the Registrant’s Registration Statement on Form S-1, as amended (Registration No. 333-289823), initially filed with the U.S. Securities and Exchange Commission on August 22, 2025. Such prospectus, in the form in which