Hans-Stefan Kalinowski

INTERSEROH Dienstleistungs GmbH specializes in recycling and raw material supply. It also provides facility solutions and waste management, recyclable material trading, consulting, as well as logistics and supply chain management services. The company was founded in 1991 and is headquartered in Cologne, Germany.

Part of ALBA Group plc & Co. KG, ALBA Services Holding GmbH functions as an investment holding German company. The company is based in Berlin, Germany. The company was founded in 2016. Sebastiaan Krol has been the CEO of the company since 2022. ALBA Services Holding was acquired by ALBA Group plc & Co. KG on February 12, 2021.

ALBA Re-Life Holding GmbH is an investment holding German company. The private company is based in Berlin, Germany. The CEOs of the company are Timo Langemann, Hans-Stefan Kalinowski.

ATOZ Property Management GmbH is a company based in Berlin, Germany. The German company also provides training in office management and emphasizes the importance of corporate governance. The company was founded in 1997, and Mark Haberkorn has been the CEO of the company since 2022.