Peter Wagner

debitel AG provides mobile & fixed-line telecommunications services, internet and data services. It is a network-independent telecommunications company that offers mobile telephony, fixed-line telephony and the internet. It does all of this by purchasing capacity from various network operators, which it then supplements and combines to create its own products and packages. It works in Germany with the mobile telephony operators like T-Mobile, Vodafone and E-Plus. The company was founded in 1991 and is headquartered in Stuttgart, Germany.

Wavetek Wandel & Goltermann, Inc is located at Durham . It designs and manufactures communications test equipment and systems

Wandel & Goltermann, a privately owned company based in Eningen, Germany, is a provider of communications test solutions for the data communications and telecommunications markets.

Alcatel-Lucent Deutschland AG supplies customers worldwide with a range of telecommunications network equipment and software used to build public and private switching systems. It also provides network planning, systems integration and facility management services. Services and products are provided to telecommunications service providers, ISPs, large-volume enterprise customers and smaller businesses. Customers include Deutsche Telekom, Arcor, NetCologne and the German federal armed forces. The company is headquartered in Stuttgart, Germany.

KEYMILE International GmbH operates as a holding company with interest in manufacturing data transmission systems. It offers customer services such as project planning and management, installation and commissioning, help in activating networks, support in operating and extending networks. The firm offers its services to the public telecommunications, mobile and professional radio and transport infrastructures. The company was founded in 1992 and is headquartered in Brunn am Gebirge, Austria.

DEKRA SE engages in the provision of business and consumer services in the industrial, human resource, and automotive sectors. It offers services, which include motor vehicle inspections, vehicle appraisal and management services, system and personnel certification, safety tests, training, personnel management, product testing and certification, claims settlement, materials testing and inspection, and consulting. The company was founded in 1925 and is headquartered in Stuttgart, Germany.