Company: LGN
Filing Date: 2025-12-09
Form Type: S-1
Source: 0001193125-25-312729
Chunk: 6

Company: Legence Corp.
Filing Date: 2025-12-09
Form: S-1
Chunk 6
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 and among Legence and the TRA 
 Members.                                                                                            |

| • |     | “Term Loan Credit Facility” refers to the term loan facility provided under the Credit Agreement. |

| • |     | “TRA Members” refers to Legence Parent and Legence Parent II, as the initial TRA Members, and any 
 others who may from time to time become party to the Tax Receivable Agreement.                    |

iv

PRESENTATION OF FINANCIAL AND OPERATING DATA

Legence Corp. is a Delaware corporation that was formed for the purpose of effectuating an initial public offering (the “IPO”)
that closed in September 2025. In connection with the IPO, the Company effected a series of corporate reorganization transactions (such transactions, collectively, the “Corporate Reorganization”) whereby an “Up-C structure” was implemented and the Existing Owners continued to own their interests through two aggregators: (i) Legence Parent, which owns LGN Units, Class A Common Stock and
Class B Common Stock, and (ii) Legence Parent II, which owns Class A Common Stock. Please see “Corporate Reorganization” for additional information.

Our historical financial statements included in this prospectus reflect only the results of Legence Holdings, or our accounting predecessor,
for periods prior to the consummation of the IPO. For periods after our IPO, our historical financial statements reflect the results of Legence Corp. giving effect to the Corporate Reorganization.

INDUSTRY AND MARKET DATA

The market data and certain other statistical information included in this prospectus are based on a variety of sources, including independent
industry publications, government publications and other published independent sources. Some data is also based on our good faith estimates, which have been derived from management’s knowledge and experience in the industry in which we
operate. Although we have not independently verified the accuracy or completeness of the third-party information included in this prospectus, based on management’s knowledge and experience, we believe that these third-party sources are
reliable and that the third-party information included in this prospectus or in our estimates is accurate and complete. While we are not aware of any misstatements regarding the market, industry or similar data presented herein, such data involves
risks and uncertainties and is subject to change based on various factors, including those discussed under the headings “Cautionary Note Regarding Forward-Looking Statements” and “Risk Factors” in this prospectus.

TRADEMARKS AND TRADE NAMES

This prospectus may also contain trademarks