VAT Group AG engages in the business of vacuum sealing technology. Its activities include the development, manufacture, and distribution of high-end vacuum valves. It operates through the following segments: Valves, Global Services, and Industry. The Valves segment offers vacuum valves for the semiconductor, displays, photovoltaic, vacuum coating, and research industries. The Global Services segment offers training, equipment repair and overhaul, and valve upgrade services. The Industry segment covers the welded bellows for vacuum and non-vacuum applications in the semiconductor industry, medical technology, research and development, and the automotive industry; and involves the activities of Comvat and Sysmec. The company was founded by Siegfried Schertler in 1965 and is headquartered in Haag, Switzerland.