Christoph Gross

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.

IC Immobilien Holding AG engages in the provision of real estate services. It provides property management, asset management, project management, center management, rental, investment, and funds management services. The company was founded in May 1988 and is headquartered in Frankfurt, Germany.

Ernst & Young Global Ltd. engages in the provision consulting services. Its services include assurance, consulting, strategy and transaction, and tax. The company was founded on November 26, 2001 and is headquartered in London, the United Kingdom.

Part of Ernst & Young Global Ltd., Arthur Andersen & Co. GmbH is a German company.

Part of Ernst & Young Global Ltd., Ernst & Young AG is a Swiss company that provides accounting services. The company is based in Zurich, Switzerland.