Founded in 1968, Waste Management (WM) owns the largest network of recycling facilities, transfer stations, landfills, and processing plants in North America. The company makes money by entering into contracts with customers to collect, transport, process, store, and dispose of their waste. In just 30 years of operation, the company has built an impressive and diverse base of more than 22 million customers spread across municipal, residential, commercial and industrial segments in the U.S. and Canada. During 2018, WM’s biggest customer represented just 1% of its annual revenues. The public sector (municipal customers) accounts for 21% of the firm's revenue, and the largest private industries are retail and offices at 10% each.