BSY

Bentley Systems, Incorporated

A maker of infrastructure engineering software, Bentley Systems builds the tools used to design, build, and operate roads, bridges, water systems, power grids, and other public works, with products like MicroStation and the iTwin Platform for digital twins, plus subsurface specialist Seequent. The company was founded in 1984 by brothers Keith and Barry Bentley, who began by writing software that let engineers do CAD work on cheap desktop terminals instead of costly mainframes. Fun fact: the name comes from the Bentley brothers themselves—Keith, Barry, and several siblings all worked at the company.