Founded in 1997, United Rentals, Inc. is the largest equipment rental company in the world, with nearly 615 rental locations throughout the United States, Canada, and Mexico. Our diverse customer base includes construction and industrial companies, utilities and municipalities. Over 600 different types of brand name equipment maintained by factory-trained technicians. Safety, training and certification services. Our professionals work with customers from project inspection to completion. Our representatives are available 24/7 with advice and answers. Equipment is tested and inspected before each rental for safe operating condition. 24/7 Emergency Response Services. Competitive Rates.