René Zahnd

TERTIANUM AG provides senior residential care services. It also engages in the acquisition, holding, management, and sale of real estate. In addition, the firm specializes in the purchasing, continuous management, and sale of shares to domestic and foreign companies. The company was founded on October 13, 1978 and is headquartered in Zurich, Switzerland.

Wincasa AG provides real estate services. Its services include revitalization, strategic facility management, general management, construction management, business optimization and sale consultancy. The company is headquartered in Winterthur, Switzerland.

Swiss Prime Site Immobilien AG provides real estate services. The company is headquartered in Olten, Switzerland.

Bellevue-Bau AG provides real estate management services. The company is headquartered in Winterthur, Switzerland.

Part of Swiss Prime Site AG, Swiss Prime Site Finance AG provides real estate investment services. The private company is based in Olten, Switzerland.

Immoveris AG provides real estate services. It offers transaction and brokerage services, portfolio and asset management, property management, surveying, consulting services, project development and financial services. The company was founded on December 22, 2003 and is headquartered in Bern, Switzerland.

Part of Bouygues SA, Marazzi Generalunternehmung AG is a construction services provider. The private company is based in Muri bei Bern, Switzerland. Marazzi Generalunternehmung was acquired by Losinger Construction AG on May 23, 2006.

Part of Implenia AG, Implenia Real Estate GmbH is a German company that provides real estate development services. The company is based in Raunheim, Germany. The CEOs are Hansjörg Holitsch and Reimer Michael Siegert. The private company was founded in 2018.