Thorsten Haeser

Autohaus Siegmar Haese GmbH operates as a car dealer that retails new and used cars. The private company is based in Erkrath-Hochdahl, Germany. The CEO of the German company is Thorsten Haeser.

O2 Germany GmbH & Co. OHG provides telecommunications services. It provides mobile services to subscribers in Germany. Its customers include BMW, Christian Dior and TCHIBO. The company introduced 3G service to business and consumer customers and it has a joint venture with TCHIBO to sell pre-paid service under the Tchibo Mobilfunk name. The company was founded in 1995 and is headquartered in Munich, Germany.

1&1 Versatel GmbH engages in the provision of telecommunication services for small, medium-sized, and large enterprises, public institutions, communities, and municipal companies. It offers telephone, Internet, mobile, hosting, voice and site networking, personal consulting, email and web protection services. The firm also manages and develops a fiber network infrastructure. The company was founded in 1999 and is headquartered in Berlin, Germany.

Telefónica Germany GmbH & Co. oHG engages in telecommunication services. It specializes in digitalisation, protection and security of personal data, ad network processing. The company was founded in May 1995 and is headquartered in Munich, Germany.