Albert Langenstein

EMD Serono, Inc. operates as a biopharmaceutical firm. The firm develops recombinant prescription medicines. Its therapies include neurology and immunology, metabolic endocrinology, fertility, and oncology. The company was founded in 1971 and is headquartered in Rockland, MA.

Part of Vonovia SE, conwert epsilon Invest GmbH engages in buying and selling of land, buildings & flats. The company is based in Bochum, Germany. The CEOs are Sebastian Jung, Klaus Freiberg, Helene von Roeder. The German company was founded in 2006.

Part of Vonovia SE, FSG-Holding GmbH is a German company that provides management services. The company is based in Bochum, Germany. The CEOs are Rolf Buch, Helene von Roeder. The company was founded in 2007.

Part of Vonovia SE, ecowo GmbH is a leading property management company based in Gelsenkirchen, Germany. The German company specializes in managing condominiums and rental properties, and also offers property sales consulting services. The company was founded in 1951 and is currently led by CEOs Konstantina Kanellopoulos, Helene von Roeder, and Thomas Beutner.

Part of Vonovia SE, Siege Siedlungsgesellschaft für das Verkehrspersonal mbH is a German company that leases and manages residential real estate properties. The company is based in Bochum, Germany. The CEOs of the company are Frederic-Andreas Neumann, Gerald Klinck, Klaus Freiberg.

Part of Vonovia SE, Eisenbahn-Siedlungsgesellschaft Augsburg mbH (Siegau) is a company based in Bochum, Germany. The CEOs of the German company are Frederic-Andreas Neumann, Klaus Freiberg, Gerald Klinck.

Industriegewerkschaft Bergbau Chemie Energie operates as a trade union. The private company is based in Hannover, Germany.

Deutsche Akademie der Technikwissenschaften eV advises on technical and technological issues for engineering and applied sciences. The private company is based in Munich, Germany.

Part of Vonovia SE, conwert Eisa Invest GmbH engages in buying and selling of land, buildings and flats. The company is based in Bochum, Germany. The CEOs are Arnd Fittkau, Martina Pansa, Helene von Roeder. The German company was founded in 2007.

Part of Vonovia SE, conwert & kelber Besitz 10/2007 GmbH is a German company that engages in buying and selling of commercial premises and non-residential buildings. The company is based in Bochum, Germany. The CEOs of the company are Martina Pansa, Helene von Roeder.

Part of Vonovia SE, conwert Tizian 2 Invest GmbH provides residential real estate services. The company is based in Bochum, Germany and was founded in 2005.

Part of Vonovia SE, conwert Corvus Invest GmbH provides business and economic services. The company is based in Munich, Germany. The CEOs of the German company are Arnd Fittkau, Sebastian Jung, Helene von Roeder.

Part of Vonovia SE, Conwert Omega Invest GmbH engages in buying and selling of land, buildings and flats. The company is based in Bochum, Germany. The CEOs of the German company are Arnd Fittkau, Sebastian Young, Helene von Roeder.

Part of Vonovia SE, conwert Immobilien Development GmbH engages in the management of land, buildings, and apartments. The company is based in Bochum, Germany. The CEOs of the German company are Martina Pansa, Klaus Freiberg, Helene von Roeder.

Part of Vonovia SE, conwert Pegasus Invest GmbH engages in buying and selling commercial premises and non-residential buildings. The company is based in Bochum, Germany. The CEOs of the German company are Arnd Fittkau, Martina Pansa, Helene von Roeder.

Part of Vonovia SE, conwert Wali Invest GmbH provides real estate services. The company is based in Bochum, Germany. The CEOs are Mario Marcel Stamerra, Arnd Fittkau, Helene von Roeder. The German company was founded in 2008.

BUWOG Lüneburg GmbH buys and sells residential properties. The company is headquartered in Bochum, Germany.

Part of Vonovia SE, BUWOG Syke GmbH engages in the management of land, buildings, and apartments. The company is based in Bochum, Germany. The CEOs of the German company are Dirk Brunnert, Klaus Freiberg, Helene von Roeder.

Part of Vonovia SE, Wohnungsbau Niedersachsen GmbH is a company based in Bochum, Germany. The CEOs of the German company are Arnd Fittkau, Helene von Roeder, Mario Marcel Stamerra.

Part of Vonovia SE, BUWOG Spandau 1 GmbH & Co. KG engages in buying and selling of land, buildings and flats. The company is based in Kiel, Germany. The CEOs are Arnd Fittkau, Sebastian Jung, Sebastian Young, Helene von Roeder. The German company was founded in 2008.

Part of Vonovia SE, Deutsche Annington Fünfte Beteiligungsgesellschaft mbH is a company based in Bochum, Germany. The CEOs are Rolf Buch, Helene von Roeder. Deutsche Annington Fünfte Beteiligungsgesellschaft mbH provides professional, scientific and technical services. The German company was founded in 2006.

Part of Vonovia SE, BUWOG - Braunschweig I GmbH is a company based in Bochum, Germany. The CEOs are Dirk Brunnert, Arnd Fittkau, Helene von Roeder. The German company was founded in 1938.

Part of Vonovia SE, DW Pflegeheim Meckenheim Grundstücks GmbH is a real estate company based in Berlin, Germany. Founded in 2013, the German company engages in buying and selling of land, buildings and flats.

Part of Vonovia SE, Beamten-Baugesellschaft Bremen GmbH is a company that provides civil construction services. Beamten-Baugesellschaft Bremen GmbH is based in Bremen, Germany. The CEOs are Dirk Brunnert, Klaus Freiberg, Röder von Diersburg. The German company was founded in 1921.

BUWOG - Kiel II GmbH is a company based in Bochum, Germany. The CEOs of the German company are Herwig Teufelsdorfer, Martin Mazanek, Thorsten Gleitz. Part of Vonovia SE, BUWOG - Kiel II GmbH is a company that deals with data protection.

HERMES Fleischwaren Verwaltung GmbH provides scientific and technical services. The company is based in Hamm, Germany. The CEOs are Arnd Fittkau and Helene von Roeder. The German company was founded in 1992.

Part of Vonovia SE, Vonovia Elbe GmbH is a German company that engages in buying and selling of land, buildings and flats. The company is based in Bochum, Germany. The CEOs are Arnd Fittkau, Helene von Roeder, Sebastian Jung. The company was founded in 2016.

Vonovia Elbe Berlin II GmbH engages in the buy and sell of land, buildings, and flats. The company was founded on June 26, 2016 and is headquartered in Bochum, Germany.

Part of Vonovia SE, Vonovia Elbe Wannsee I GmbH engages in buying and selling of land, buildings & flats. The company is based in Bochum, Germany. The CEOs are Martina Pansa, Arnd Fittkau, Helene von Roeder. The German company was founded in 2016.

BUWOG - Hamburg Süd GmbH is a company based in Bochum, Germany. The CEOs of the German company are Klaus Freiberg, Arnd Fittkau, Helene von Roeder. Part of Vonovia SE, BUWOG - Hamburg Süd GmbH engages in buying and selling of commercial premises & non-residential buildings.

Part of Vonovia SE, BUWOG - Niedersachsen/Bremen GmbH engages in buying and selling of residential properties, buildings & apartments. The company is based in Bochum, Germany. The CEOs are Dirk Brunnert, Arnd Fittkau, Helene von Roeder. The German company was founded in 2015.

Part of Vonovia SE, conwert delta Invest GmbH engages in buying and selling of commercial premises and non-residential buildings. The company is based in Bochum, Germany. The CEOs of the German company are Martina Panza, Helene von Roeder.

E. Merck KG operates as a holding company with interest in pharmaceutical preparations. It acts as a general partner that holds the majority of shares of the public company Merck KGaA. Merck KG is the parent company of all Merck companies yet it does not have any operating businesses itself. It makes the entrepreneurial policy decisions for the Merck Group. The company is headquartered in Darmstadt, Germany.

Part of Vonovia SE, BUWOG-Hamburg Umland II GmbH is a German company that has no available description. The company is based in Bochum, Germany. The CEOs of the company are Dirk Brunnert, Arnd Fittkau, Helene von Roeder.

Part of Vonovia SE, WOHNBAU NORDWEST GmbH is a company based in Dresden, Germany. The CEOs are Arnd Fittkau, Helene von Roeder, Sebastian Krüger. The German company was founded in 1991.

Part of Vonovia SE, Wohnungsgesellschaft Norden mit beschränkter Haftung is a company based in Bochum, Germany. The CEOs of the German company are Dirk Brunnert, Helene von Roeder, Klaus Freiberg.

Part of Vonovia SE, Deutsche Annington Heimbau GmbH is a company based in Bochum, Germany. The CEOs are Arnd Fittkau, Dirk Brunnert, Grosse Philip, Helene von Roeder. The German company was founded in 2005.

Part of Vonovia SE, NILEG Norddeutsche Immobiliengesellschaft mbH is a real estate company based in Hannover, Germany. The CEOs of the German company are Ulrich Schiller, Klaus Freiberg, Rolf Buch.

Part of Vonovia SE, IESA Immobilien Entwicklung Sachsen GmbH engages in buying and selling of land, buildings and flats. The company is based in Bochum, Germany. The CEOs are Martina Pansa, Arnd Fittkau, Helene von Roeder. The German company was founded in 2005.