Legence, a Blackstone Portfolio Company, is the leading, integrated provider of energy efficiency and sustainability solutions throughout the entire building lifecycle. For over a century, Legence has provided advisory, engineering, contracting, and maintenance services for high-performance and mission-critical facilities across diverse industries, including data centers, semiconductor, biopharma, healthcare, education, and government. 

As an Energy Transition Accelerator™, Legence transforms the built environment at unmatched speed and scale, making the spaces we occupy healthier and more sustainable. This transformative approach bridges the gap between innovation and implementation, and positions Legence as an indispensable partner for organizations seeking to achieve their sustainability goals, paving the way for a more sustainable future.

Our legion of companies includes: 

•	AO Reed
•	Bel-Aire Mechanical 
•	Black Bear Energy 
•	CMTA
•	Gilbert
•	ICS
•	OCI Associates
•	Provident Energy 
•	RE Tech Advisors
•	SC Engineers
•	Therma
•	VarcoMac
•	Yearout Mechanical



Data Center

Renewable Energy

Semiconductor

Legence

Legence's headquarters in San Jose, CA, United States

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