Company: LGN
Filing Date: 2025-05-14
Form Type: DRS/A
Source: 0000950123-25-005247
Chunk: 115

Company: Legence Corp.
Filing Date: 2025-05-14
Form: DRS/A
Chunk 115
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 | 100.0 | % |

| (1) | The information provided in the table under “Revenue by Client End Market” represents the revenue                                                        
 generated from clients in each of the end markets indicated in that period; provided, that where the client is a lessor, we use the lessee’s end market. |

| (2) | Includes facilities housing servers, networking equipment, systems critical for storing and managing data,                                                                                                        
 operational facilities for internet service providers, software companies, IT development hubs, AI development facilities, and high-precision manufacturing plants producing semiconductor chips and electronics. |

| (3) | Includes colleges, universities and research facilities, as well as kindergarten through twelfth grade 
 education facilities.                                                                                  |

| (4) | Includes facilities supporting life sciences research and development, pharmaceutical manufacturing and 
 healthcare facilities providing inpatient and outpatient health services.                               |

| (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 and defense, energy,                                                                                 
 agriculture, multi-family, entertainment and hospitality, among others, as well as the federal government. Revenues from the federal government were less than 2% of revenues in 2024. |

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.                                                                                                                           |

77

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