QS Energy, Inc. develops and commercializes energy efficiency technologies in the United States, Canada, South and Central America, Middle East, Asia, and internationally. Its energy efficiency technologies assist in meeting energy demands, enhancing the economics of oil transport, and reducing greenhouse gas emissions. The company's primary technology comprises Applied Oil Technology, a commercial-grade crude oil pipeline transportation flow-assurance product that reduces crude oil viscosity by applying a high intensity electrical field to crude oil while in transit. It serves upstream and midstream energy sectors. The company was formerly known as Save the World Air, Inc. and changed its name to QS Energy, Inc. in August 2015. The company was incorporated in 1998 and is based in Tomball, Texas.