W.W. Grainger, Inc., is a distributor of maintenance, repair and operating (MRO) supplies and other related products and services used by businesses and institutions primarily in the United States and Canada . The Company operates in two segments: United States and Canada. Other businesses include operations in Europe, Asia, Latin America and other United States operations. In August 2013, W.W. Grainger Inc acquired E&R Industrial Sales, Inc. In December 2013, the Company announced that it has completed the acquisition of Safety Solutions Inc.