Stephan Hannebauer

R+S Group AG operates as a holding company with interest in the electrical engineering sector. The firm engages in the design, implementation, control, and maintenance of projects in the areas of municipal and commercial buildings, health care, shipbuilding, and industrial plants through its subsidiaries. It specializes in energy and control technologies, project development, as well as heating, ventilation, air-conditioning, and sanitary engineering. The company was founded by Markus Röhner and Dieter Seban in 1988 and is headquartered in Fulda, Germany.

AMMER PARTNERS GmbH invests in start-ups and established companies. The company was founded by Dieter Ammer and Dr. Oliver Melzer and is headquartered in Hamburg, Germany.

McKinsey GmbH & Co. KG provides business consulting services. The company was founded on October 18, 2011 and is headquartered in Düsseldorf, Germany.

maxingvest AG is a holding company, which engages in the management of the consumer goods and retail industries portfolio. It also provides finance, legal, internal audit, and tax services to the group firms. The company was founded on January 26, 1977 and is headquartered in Hamburg, Germany.

UAM Media Group GmbH offers integrated communications solutions. It specializes in cross-media communication and provides ambient media advertisement services. The company was founded in 1992 and is headquartered in Hamburg, Germany.

IKB Invest GmbH (IKB-PE) is the private equity arm and a wholly-owned subsidiary of IKB Deutsche Industriebank AG (FR: IKB). The bank's activities include domestic corporate lending, real estate finance, structured finance, private equity, treasury and financial markets. KfW holds a significant minority interest in the IKB group, and both banks have established a strategic partnership. Another significant shareholder is Stiftung Industrieforschung, a foundation established in 1974 following the merger between IKB-Industriekreditbank and Deutsche Industriebank, for the purpose of promoting commercial enterprise. Established in 1987, IKB-PE is headquartered in Dusseldorf, Germany.

ae group AG develops and manufactures diecast aluminum components. It offers services that include design, simulation, diecasting, processing and assembly. The firm serves the automotive and aviation industries. The company was founded in 1993 and is headquartered in Gerstungen, Germany.

Helmers Beteiligungs GmbH provides business and economic services. The private company is based in Osnabrück, Germany. The CEOs of the German company are Klaus Runzer, Hubertus Lübbert zur Lage, Stefan Nötzel.