No cash to buy a bulldozer? No worries -- just lease one from United Rentals. The company considers itself the #1 commercial and construction equipment renter in the world, serving customers in the commercial, infrastructure, industrial, and residential sectors. It operates through a network of more than 895 locations in the US and Canada, and provides about 3,300 equipment items -- everything from general to heavy construction and industrial equipment to hand tools, special-event items (such as aerial towers), power (diesel generators) and HVAC equipment, and trench-safety equipment. It also sells new and used equipment, as well as rental-related and contractor supplies and parts.