Company: LGN
Filing Date: 2025-12-09
Form Type: S-1
Source: 0001193125-25-312729
Chunk: 359

Company: Legence Corp.
Filing Date: 2025-12-09
Form: S-1
Chunk 359
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3 may be permitted to                                                                                                                                                
 directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public 
 policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or    
 controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the   
 opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be     
 governed by the final adjudication of such issue.                                                                                                                                                                                                      |

II-5

| (b) | The undersigned registrant hereby undertakes that: |

| (1) | For purposes of determining any liability under the Securities Act of 1933, the information omitted from the                                                                                                                                         
 form of prospectus filed as part of this registration statement in reliance upon Rule 430A and contained in a form of prospectus filed by the registrant pursuant to Rule 424(b) (1) or (4) or 497(h) under the Securities Act shall be deemed to be 
 part of this registration statement as of the time it was declared effective.                                                                                                                                                                        |

| (2) | For the purpose of determining any liability under the Securities Act of 1933, each post-effective amendment                                                                                                                                     
 that contains a form of prospectus shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. |

II-6

SIGNATURES Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of San Jose, State of California, on December 9, 2025.

| By: |     | /s/ Jeffrey Sprau                             |
|     |     | Name: Jeffrey Sprau                           |
|     |     | Title:   Chief Executive Officer and Director |

Each person