Cedarburg, Wi. WILO USA LLC, a subsidiary of WILO SE, celebrated the Grand Opening of the new 250,000 square-foot Wilo Americas Headquarters and production facility on Tuesday, June 21, 2022, in Cedarburg, Wisconsin. The new headquarters is now combined operations of Wilo USA, Weil Pump, Scot Pump and Wilo Machine Co. into a single production site. In conjunction with the grand opening, Wilo also celebrated its 150th anniversary.