DMW Corporation

Pumps, Blowers & Water Infrastructure · Ota, Tokyo

DMW Corporation, founded in 1910, manufactures pumps, blowers, valves and energy-recovery devices that cut the power cost of reverse-osmosis desalination. Its pumps serve water supply and sewerage, petrochemical and power plants, its blowers include tunnel jet fans and sewage blowers, and its valves are used for dam discharge and water supply. It also makes pump-turbines for small hydropower.

The company plans, designs and installs related facilities and makes switchboards and electrical control equipment. Its maintenance covers whole pump stations, including electrical equipment, with vibration-based diagnosis and support for servicing plans and fault investigation. It had 704 consolidated employees as of March 31, 2026.