Stephan Ritzenhoff

Lufthansa Technik AG provides maintenance, repair and overhaul services for commercial aircrafts and aircraft engines. It offers total support and engineering services, modifications, VIP and executive jet solutions, aircraft on the ground and e-Services. The firm serves airlines, leasing companies and private aircraft operators. The company was founded in 1951 and is headquartered in Hamburg, Germany.

Bankhaus Lampe KG engages in the provision of banking services to corporate, institutional, and private clients. It offers finance, liquidity and asset management, international documentary business, private equity, capital market, interest rate and currency management, mergers and acquisitions, designated sponsoring, and company succession services. The company was founded by Hermann Lampe in 1852 and is headquartered in Bielefeld, Germany.

Portigon AG engages in the management of its own assets. It also provides financial services and conducts banking activities. The company was founded in 1969 and is headquartered in Duesseldorf, Germany.

ERGO Group AG engages in the provision of insurance and financial services. Its business units include German, International, and Direct and digital business. The firm offers life insurance, health insurance, legal expenses insurance, property and casualty insurance, travel insurance, pension fund, and financial services. The company was founded on August 1, 1997 and is headquartered in Dusseldorf, Germany.

Radeberger Gruppe KG engages in the production and distribution of beer and non-alcoholic beverages. It distributes its products under the Radeberger, Märkischer Landmann, Märkischer Landmann, Kurfürsten Kölsch, Küppers Kölsch, Krusovice, Kronen, Kilkenny, Jever, Hövels, enninger Radler, Henninger, Hansa, Guinness, Gilden, Freiberger, Estrella, DAB, Clausthaler, Brinkhoffs, Binding, Berliner Pilsener, Berliner Kindl Weisse, Berliner Kindl, Altenmuenster, Allgäuer, Wicküler, Urkrostitzer, Union, Tucher, Their, Stuttgarter Hofbräu, Stifts, Sternburg, Sion Kölsch, Sester Kölsch, Schultheiss, Schöfferhofer Zitrone, Schöfferhofer Kaktusfeige, Schöfferhofer Grapefruit, Schöfferhofer Granatapfel+Guarana, Schöfferhofer, Schlösser, Rostocker, Ritter, and Rex Pils brands. The company was founded in 1952 and is headquartered in Frankfurt, Germany.

Dr. August Oetker KG operates as a holding company with interests in the food and beverage, banking, and shipping sectors. The firm operates through the following divisions: Food; Beer and Non-Alcoholic Beverages; Sparkling Wine, Wine, and Spirits; Bank; and Other Interests. Its subsidiaries specialize in the production of food and beverages; provide services in the chemical, luxury hotel, data and information processing, and logistics sectors; as well as operate private banks. The company was founded by August Oetker in 1891 and is headquartered in Bielefeld, Germany.

Part of Dr. August Oetker KG, Berliner Kindl Brauerei AG is a brewery that specializes in producing Berliner Kindl and Berliner Weisse beers for the capital city. The company was founded in 1872 and is based in Berlin, Germany. The description emphasizes the German company's commitment to responsible consumption and promotion of alcoholic beverages through their participation in the "Bier bewusst genießen" campaign.

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.

Viessmann Climate Solutions SE engages in the production of heating, industrial, and refrigeration systems. Its product portfolio includes gas-condensing, oil, and wood boilers, as well as photovoltaic systems and domestic hot water tanks. The company was founded in 1917 and is headquartered in Allendorf, Germany.

NRW.BANK operates as a state-owned development bank, assisting the German Federal State of North Rhine-Westphalia in its economic and social advancements. It offers interest-subsidized loans, subordinated loans, grants, financing, and advisory services. Its business activities are strictly limited to the Federal State of North Rhine-Westphalia. It serves small and medium-sized enterprises (SMEs)/start ups, municipalities and the social housing sectors. The company was founded on August 1, 2002 and is headquartered in Duesseldorf, Germany.

Brauerei Brinkhoff GmbH specializes in the production and distribution of alcoholic beverages. The firm's products include lager and mixed beer drinks. The company was founded in 1844 and is headquartered in Frankfurt, Germany.

RB Brauholding GmbH owns and operates breweries. The company is headquartered in Bielefeld, Germany

Columbus Investment AG specializes in direct investment in growth, start-up, and restructuring companies. It focuses on information technology software and services, system houses, telecommunications, medical technology, energy, as well as metals and metal processing. The company was founded on February 23, 2007 and is headquartered in Dusseldorf, Germany.

Dr. Oetker GmbH engages in the supervision, coordination, and strategic management of the business activities of the Oetker Group. It also focuses on the development and support of the business operations. The company was founded on January 27, 1972 and is headquartered in Bielefeld, Germany.

Henkell International GmbH engages in the production and distribution of sparkling wine. The company is headquartered in Wiesbaden, Germany.

Part of RWE AG, RWE Supply & Trading GmbH is a German company that produces clean, secure, and affordable electricity while pursuing a clear goal of reducing CO2 emissions. The company is based in Essen, Germany. The company is also advancing storage and energy technologies globally.

Viessmann Werke Allendorf GmbH specializes in the manufacture and development of industrial heating systems. Its product encompasses condensing boilers, pumps, exchagers, and combustion systems. The firm also provides design system technologies and components for wood combustion, and oil and gas condensing applications. The company is headquartered in Allendorf, Germany.

Part of Dr. August Oetker KG, Stuttgarter Hofbräu AG is a brewery located in Stuttgart, Germany. Stuttgarter Hofbräu produces a variety of beers and is known for its love of all things Stuttgart, including the city's views and traditions. The German company also recently elected its new Württembergische Bierkönigin and her princesses. Contact Stuttgarter Hofbräu for more information about their products and services. The company was founded in 1951 and is currently led by CEO Martin Alber.

flaschenpost SE engages in the distribution of beverages. It offers water, beer, lemonade, spritzer, and juice. The firm also provides delivery services. The company was founded on July 2, 2012 and is headquartered in Münster, Germany.

The Viessmann Group is engaged in manufacturing heating and cooling systems. It offers investment, real estate, climate, refrigeration and industrial solutions. The company was founded by Johann Viessmann in 1917 and is headquartered in Allendorf, Germany.

Unterstützungskasse GmbH Haftung der Hermann Meyer & Co. KG is a management services company based in Bielefeld, Germany. The German company provides management services. Ute Gerbaulet has been the CEO of the private company since 2021.

Musrom GmbH provides investment services. The private company is based in Bielefeld, Germany. The CEOs of the German company are Albert Christmann, Ute Gerbaulet.

Dr. Oetker China Holding GmbH is an investment holding company based in Bielefeld, Germany. The CEOs of the private company are Albert Christmann, Martin Heinrich Theodor Reintjes, Christian von Twickel. The company functions as an investment holding company.

Part of Fosun International Holdings Ltd., Lampe Alternative Investments GmbH is a German company that provides investment services. The company is based in Dusseldorf, Germany. The CEOs of the company are Klemens Breuer, Ute Gerbaulet.

Part of Dr. August Oetker KG, Erste Oetker Beteiligungs GmbH is a German company that provides investment services. The company is based in Bielefeld, Germany. The CEOs of the company are Albert Christmann and Heino Schmidt.

Oetker Digital GmbH engages in the consulting, monitoring, coordination, and supervision of business activities of companies of the Oetker Group, particularly with regards to digital business models. It develops and identifies digital ideas, innovations, and new business models. The company is headquartered in Berlin, Germany.

BDH Biodiesel Hamburg GmbH engages in operating depot industry. The company is headquartered in Bielefeld, Germany.

Part of Dr. August Oetker KG, OEDIV Oetker Daten- und Informationsverarbeitung KG is a German company that provides data and information processing services. The company is based in Bielefeld, Germany. The CEOs are Frank Pickert, Jasmin Gronwald, Jörg Philipp Zielke. The company was founded in 1995 by * Oetker.