W.W. Grainger is a company that distributes maintenance, repair, and operating (MRO) products and services. It offers material handling equipment, safety and security supplies, lighting and electrical products, power and hand tools, pumps and plumbing supplies, cleaning and maintenance supplies, building and home inspection supplies, vehicle and fleet components, and other products. The company also provides technical support and inventory management solutions. W.W. Grainger serves small and medium-sized businesses, large corporations, government entities, and other institutions.