Assemble, fabricate, install, and maintain piping and piping systems, fixtures, and equipment for steam, hot water, heating, cooling, lubricating, sprinkling, and industrial production and processing systems. Wilo USA acquired Weil Pump and Scot Pump in 2017, American-Marsh Pumps in 2019, QuantumFlo in October 2021, HydroServe in 2023 and Plad in 2023.