Founded by Donald C. Erickson in 1974, Energy Concepts Co., LLC is a small Annapolis engineering company known for advancing heat-activated absorption technology. It develops custom systems for industrial customers, taking projects from early feasibility work through fabrication, testing, and field installation. The company’s history includes 80 U.S. patents and more than 30 years of experience in absorption heat pumps and refrigeration.
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Energetx, LLCEnergetx, LLC builds district-energy and domestic-hot-water systems while engineering heat-transfer, pumping, and air-cooling equipment for commercial and industrial customers across North America. Founded by Scot Seifert, a former Alfa Laval North American sales director with more than 25 years of heat-transfer experience, the company combines technical system design with custom fabrication and represents Alfa LU-VE air products exclusively in North America. Its equipment is manufactured in the USA, with air products made in Italy and Finland.CHESAPEAKE CITY, MD
Clean Heat TechnologiesClean Heat Technologies grew out of Lalit Chordia’s supercritical-CO2 work, begun with his first company in 1990, and now brings more than 30 years of research to commercial heat-pump development. The Pittsburgh company is known for establishing a commercial-scale direct-exchange geothermal system using CO2 and designs systems for customers seeking lower-energy heating or cooling in buildings and industrial operations.PITTSBURGH, PA
Doucette Industries, IncSince its founding in 1974, Doucette Industries has built its identity around heat-transfer engineering in York, Pennsylvania. The company is recognized as the innovator of the vented double-wall heat exchanger and reports more than 1,000,000 units installed worldwide. Its team brings over 300 years of combined heat-exchanger manufacturing experience to custom work for refrigeration, air-conditioning, and hydronic applications.YORK, PA
EnidineEstablished in 1966, Enidine is an ITT company headquartered in Orchard Park, New York, with more than 60 years of experience serving global industrial markets. It is known for engineered energy-absorption solutions for critical applications, supported by custom engineering and testing services.ORCHARD PARK, NY