Maciej Radziwill

Polska Telefonia Cyfrowa Sp zoo provides wireless telephonic services in Western Europe. Its services include call forwarding, call waiting, voicemail, account information, short message service, multimedia messaging service, information services and wireless Internet access. It also offers roaming services to its subscribers in 156 countries. The company's products and services are sold under the brand name, Era. Polska Telefonia Cyfrowa offers its services to individual post paid, prepaid, and corporate customers. Polska Telefonia Cyfrowawas founded in 1995 and is headquartered in Warsaw, Poland.

Elektrim SA engages in the production and distribution of electricity. It also provides telecommunications and information technology services. The company was founded on November 16, 1945 and is headquartered in Warsaw, Poland.

BBI Development SA engages in real estate development. It designs, constructs, and sells residential real estate as well as commercial properties. The company was founded on December 15, 1994 and is headquartered in Warsaw, Poland.

Trakcja Polska SA engages in the rail transport infrastructure construction market. The company's activities include modernization of the rail and tram tracks, construction and modernization of the traction networks and their power supply, construction of power engineering systems and remote control systems for traction power supply, the cubature construction for railway infrastructure and general construction industry. Trakcja Polska was founded on July 1, 1969 and is headquartered in Warsaw, Poland.