We are a vertically integrated manufacturing company, headquartered in Pleasant Prairie, WI. Wholly owned, we manufacture pressure washers, generators, water pumps, hoses, accessories and replacement parts to consumers and industrial customers globally. Our brand names include Simpson, Delco, Dewalt, Powerwasher and AAA Pumps. Our mission, in conjunction with on-time delivery of the highest quality pressure washers, pumps, hoses and accessories in our industry, is to create a positive and significant impact on our customers’ projects.