WSI (Washing Systems) is a company headquartered in Cincinnati, which supplies washroom chemicals to the commercial laundry industry. WSI provides products and services to the 48 states in the continental United States plus Hawaii and Canada. WSI was incorporated in 1989 and has grown into one of the largest chemical suppliers to the commercial laundry industry. The company concentrates on the linen and the industrial laundry market. Its company motto is “Customers Are Our Top Priority”.