WM

Waste Management, Inc

A maker of comprehensive environmental services, WM collects trash and recyclables, runs the largest landfill network in the U.S. and Canada, and turns landfill gas into renewable energy. It also handles regulated healthcare waste and secure document destruction through its Stericycle business. The company's roots trace to 1899, when Dutch immigrant Harm Huizenga hauled garbage through Chicago with a horse and wagon; his grandson Wayne Huizenga formally founded Waste Management in 1968 by buying up small "mom-and-pop" haulers and consolidating them into a national network.