Legence provides engineering, consulting, installation and maintenance services for mission-critical systems in buildings. Founded in 1914 and describing its mission as "making buildings better since 1914", the company positions itself as the world's first Energy Transition Accelerator™ and is a Blackstone portfolio company. Its work spans mechanical, electrical and plumbing (MEP) engineering, energy efficiency, renewable energy, distributed generation, net zero building design, building performance optimisation and building systems maintenance.
The firm employs more than 7,400 people across nine operating companies: over 1,200 MEP engineers and consultants and more than 6,200 technicians and craftspeople. That split reflects a business built on both design expertise and skilled field work. Reported scale includes more than 10 million square feet of net zero buildings designed, over 140 MW of distributed generation installed or designed, and efficiency managed across more than 5.5 billion square feet of space in over 25,000 buildings. Over the past three years it has delivered more than $21 billion in energy-efficiency and renewable-energy projects.
Legence serves clients in data centres, semiconductors, precision manufacturing, life sciences, healthcare, education and commercial real estate. Its stated approach combines engineering solutions with expert craftsmanship, partnering with clients on building performance, reliability and efficiency. Further information is available at wearelegence.com.
