Matheson Tri-Gas, Inc166 Keystone Drive, 18936 , Montgomeryville , Pennsylvania, United States

MATHESON produces and supplies industrial and specialty gases, and gas handling equipment in the United States and internationally. The company offers semiconductor, medical, welding, atmospheric and bulk, and cylinder gases for customers using gas in their labs, fabs, plants, and processes. It also designs and manufactures gas purification systems, generators, delivery systems, filters, purifiers, detection equipment, control valves, and management accessories; and gas cylinder enclosures, source manifolds, and panels, as well as helium recovery solutions. In addition, the company provides support, engineering, and systems management services to analytical laboratories and semiconductor manufacturers worldwide