VAT Group AG engages in the development, manufacture, and supply of vacuum valves. It operates through the Valves and Global Service segments. The Valves segment develops, manufactures, and supplies vacuum valves for the semiconductor, displays, photovoltaics, and vacuum coating industries. The Global Service segment provides local expert support to customers and offers genuine spare parts, repairs, and upgrades. The company was founded by Siegfried Schertler in 1965 and is headquartered in Haag, Switzerland.