CECO

Ceco Environmental Corp.

A maker of engineered systems that clean industrial air and water, CECO Environmental builds pollution-control and fluid-handling equipment used by power plants, oil and gas refineries, and semiconductor and battery factories. Founded in 1966 as the Claremont Engineering Company, it took its name from those initials—CECO—and has grown through acquisitions. In 2026 it signed a deal to merge with Thermon Group Holdings, a maker of industrial heating products.