Energy Recovery, Inc., together with its subsidiaries, designs, manufactures, and sells various solutions for the seawater reverse osmosis desalination and industrial wastewater treatment industries worldwide.

The company operates through Water and Emerging Technologies segments. It offers a suite of products, including energy recovery devices, and high-pressure feed and recirculation pumps; hydraulic turbochargers and boosters; and spare parts, as well as repair, field, and commissioning services.

The company also offers a solution to reduce energy consumption in natural gas processing and in refrigeration systems that use carbon dioxide.

It provides its products under the ERI, PX, Pressure Exchanger, PX Pressure Exchanger, Ultra PX, PX G, PX G1300, PX PowerTrain, AT, and Aquabold brands to large engineering, procurement, and construction firms; end-users and industry consultants; original equipment manufacturers; and aftermarket customers.

The company was incorporated in 2001 and is headquartered in San Leandro, California.