Ernst Gassner

Ed. Züblin AG engages in the provision of building construction and civil engineering services. Its services include turnkey construction, structural maintenance, tunnelling, ground engineering, structural steelwork, timber construction, environmental technology, bridge construction, chimney and refractory engineering, construction logistics, and modular construction . The company was founded by Eduard Züblin in 1898 and is headquartered in Stuttgart, Germany.

Renaissance Construction A.S. provides construction services. The firm designs and constructs shopping centers, offices, hotels, multifunctional complexes, high-rise buildings, heavy industrial facilities (cement plants, construction machinery and auto plants, chemical and petrochemical plants, fertilizer plants, metallurgical plants, etc.), infrastructure (airports, tunnels, marinas, etc.), energy facilities, pharmaceutical plants, food and beverage processing plants, public buildings and residential buildings. The company was founded by Erman Ilicak in 1993 and is headquartered in St. Petersburg, Russian federation.

Part of Renaissance Construction A.S., Heitkamp Construction GmbH is an Austrian company that provides construction services. The company is based in Vienna, Austria. The CEO of the company is Nematollah Farrokhnia.