René Grupp

Berliner Wasserbetriebe supplies drinking water. Its core task is to supply residents of Berlin and the surrounding area with drinking water and dispose of their wastewater. It operates water works and also provides sewerage services. Not only does it perform conventional wastewater treatment at its wastewater treatment works, but has also equipped the majority with biological nutrient elimination facilities, to maintain the quality of Berlin's lakes and rivers. The company was founded in 1992 and is headquartered in Berlin, Germany.

Georgsmarienhütte Holding GmbH operates as a renewables and environment company. It focuses on the mobility, energy, and engineering industries. The company was founded by Jürgen Grossmann on October 1, 1997 and is headquartered in Georgsmarienhuette, Germany.

Societâts Treuhand GmbH is a company based in Hannover, Germany.

PricewaterhouseCoopers International Ltd. operates as an international association of accounting and consultancy firm. The company was founded on June 24, 1998 and is headquartered in London, the United Kingdom.

heristo AG operates as a holding company, which engages in the manufacture and distribution of food products. Its specialties include raw sausages, fish and delicatessen, pet food, as well as meat, poultry, game, and agricultural products. The company is headquartered in Bad Rothenfelde, Germany.

Part of AECOM, AECOM Australia Pty Ltd. is an Australian company that provides design and engineering services to construction and management. The company is based in Fortitude Valley, Australia.

PricewaterhouseCoopers GmbH Wirtschaftsprüfungsgesellschaft engages in the provision of auditing and consulting services. It offers audit and audit-related services, tax and legal advice, as well as deals and consulting. The company was founded on October 25, 2016 and is headquartered in Frankfurt am Main, Germany.

BMI Group Services GmbH provides pitched roofing solutions. Its products include concrete and clay roof tiles, roof accessories, chimney and energy systems, and jacketing. The firm also offers roof expertise services for insulation, solar energy, and ventilation. The company was founded in 1919 and is headquartered in Oberursel, Germany.

K+S Minerals & Agriculture GmbH operate as a mining company. It offers soil conditioners, as well as liquid and foliar fertilizers. The company is headquartered in Kassel, Germany.

Part of G Holdings, Inc., Rupp Keramik GmbH supplies construction materials and roofing tiles. The company is based in Oberursel, Germany. The CEO of the German company is Ulrich Siepe.

Monier SpA engages in the production of roof systems. Its products include roof tiles and brick roof accessories under the Braas and Wierer brands. The company was founded in 1963 and is headquartered in Chienes, Italy.

Part of Holcim Ltd., MONIER Sdn. is a roof tile supplier based in Kuala Lumpur, Malaysia. Bhd. The Malaysian company offers a variety of roof tiles for pitched and flat roofs, catering to the needs and requirements of their customers.

Part of Carlisle Cos., Inc., Carlisle Construction Materials BV is a leading manufacturer of waterproofing and sealing solutions for flat roofs, facades, and buildings. The company is based in Kampen, Netherlands. The Dutch company specializes in flat roof solutions for all property types, including residential and commercial properties, as well as schools and academies.

Sievert Baustoffe GmbH & Co. KG is a German company that manufactures and distributes dry concrete, dry mortars, and mineral products. The company is based in Osnabrueck, Germany, and has subsidiaries in Germany. The company was founded in 2004, and the CEO is Norbert Winkeljohann.

Braas GmbH is a market leader in providing complete steep roof systems and related services. Braas is based in Oberursel, DE. The German company offers an extensive range of products and services related to inclined roofs. The private company was founded in 1953 by Rudolf Braas, and Ulrich Siepe has been the CEO of the company since 2004.

BMI Group Holdings UK Ltd. manufactures pitched and flat roofs. The private company is based in Reading, UK. and has subsidiaries in Germany, Spain, United Kingdom and Norway. The British company was founded in 1837. Thomas Maarten Casparie has been the CEO of the company since 2023.

Part of AECOM, AECOM Deutschland GmbH is a German company that provides engineering services. The company is based in Neu-Isenburg, Germany. The CEOs of the company are Christian Ebenrecht, Marcello Barone, Patricia Sofia Vieira.

Bohnenkamp AG supplies and distributes tyres products. It offers tubes, rims, wheels, tyres, and vehicles systems. The firm serves agricultural/forestry, industrial, and truck/trailer vehicles. The company is headquartered in Osnabrück, Germany.