Company: LGN
Filing Date: 2025-11-03
Form Type: DRS
Source: 0001193125-25-262782
Chunk: 92

Company: Legence Corp.
Filing Date: 2025-11-03
Form: DRS
Chunk 92
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 hubs, AI development facilities, and high-precision manufacturing plants producing semiconductor chips and electronics. |

| (3) | Includes facilities supporting life sciences research and development, pharmaceutical manufacturing and 
 healthcare facilities providing inpatient and outpatient health services.                               |

| (4) | Includes kindergarten through twelfth grade education facilities, as well as colleges, universities and 
 research facilities.                                                                                    |

| (5) | Includes buildings or complexes combining commercial and retail. |

| (6) | Includes facilities owned or operated by state and municipal government agencies to the extent not otherwise 
 included in the education client end market.                                                                 |

| (7) | Includes a variety of other industries such as precision manufacturing, aerospace & defense, energy,                                                                                                                                
 agriculture, multi-family, hospitality & entertainment, among others, as well as the federal government. Revenues from the federal government were approximately 2% of revenues in 2024 and for the six months ended June 30, 2025. |

Business Segments We operate through two segments: Engineering & Consulting and Installation & Maintenance. Engineering & Consulting Our Engineering & Consulting segment designs HVAC and other MEP systems for buildings, develops strategies to help reduce energy usage and make buildings more sustainable and provides program and project management services for clients’ installation and retrofit projects. Our Engineering & Consulting segment has two principal service offerings:

| • |     | Engineering & Design. We provide planning, design and engineering services for                                                                                                                                                                    
 HVAC, process piping and other MEP systems in both new and existing buildings. We also develop strategies for building owners and operators to help reduce their utility consumption and make their operations more sustainable and resilient. We 
 generated approximately 58% of our 2024 Engineering & Consulting segment revenues from selling Engineering & Design services.                                                                                                                     |

58

Confidential Treatment Requested by Legence Corp. Pursuant to 17 C.F.R. Section 200.83

| • |     | Program & Project Management. We provide comprehensive program and project                                                                                                                                                                             
 management services, including facility condition and operational assessments, space utilization and capacity analyses, funding source identification and construction management. For certain clients, we provide design-build services through ESPCs 
 for building retrofits. Under ESPC contracts, financing sources provide the funds required to pay us for the upgrades and receive a portion of the client’s energy savings to recoup their investment and generate a return. We generated              
 approximately 42% of our 2024 Engineering & Consulting segment revenues from selling Program & Project Management services.                                                                                                                            |

Installation & Maintenance Our