Claus Wisser

AVECO Holding AG engages in the provision of airport, facility management, and industrial services. The airport services include ground handling, aircraft cleaning, and cargo handling. The facility management services encompass building technology, cleaning, security, catering, and garden maintenance. The industrial services involve building, ventilation, and electrical engineering; maintenance and repair of machines; production support; and logistics. The company was founded by Claus Wisser in 1991 and is headquartered in Frankfurt, Germany.

Claus Wisser Vermögensverwaltungs GmbH is a private company based in Frankfurt, Germany. The German company provides management services. The CEO of the company is Claus Wisser.

Claus Wisser Verwaltungs- und Beteiligungs GmbH & Co. KG provides mechanical engineering services. The company is based in Frankfurt, Germany. The CEOs are Claus Wisser, Kurt Wahler. The German company was founded in 2004.

Geräte- und Regler-Werke Teltow GmbH is an electrical equipment manufacturing private company based in Frankfurt, Germany. The German company manufactures electrical equipment. The CEO of the company is Claus Wisser.

Unlimited Promoting GmbH provides exhibition and congress organizing services. The private company is based in Frankfurt, Germany. The German company was founded in 1991. The CEO is Claus Wisser.

WISAG Dienstleistungsholding SE engages in the provision of airport, facility, and industrial services. The firm operates through the following segments: Aviation, Facility, and Industry. The Aviation segment includes airport, ground, passage, cargo, and personnel services. The Facility segment focuses on technical and infrastructural services for commercial, infrastructure, and residential properties. The Industry segment specializes in maintenance, technical cleaning, infrastructural and industrial facility management, electrical engineering, building technology, production logistics, as well as production support and industrial assembly. The company was founded by Claus Wisser on March 15, 1965 and is headquartered in Frankfurt, Germany.

Part of AVECO Holding AG, WISAG Sicherheit & Service West GmbH & Co. KG is a German company that provides security services. The company is based in Mainz, Germany. The company was founded in 1965 by Claus Wisser. The CEO is Norman Ammon.