LGN

Legence Corp.

A building performance platform that engineers, installs, and maintains the heating, cooling, plumbing, and control systems that keep hospitals and data centers running. Legence grew out of Therma Holdings, whose roots stretch back more than a century, and was renamed in 2022 after private-equity firm Blackstone bought it in 2020. The name blends "legacy" and "intelligence"—a nod to both the long history of the firms it has gathered and the data-driven smarts of its work.