Joachim Piroth

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.

Part of Atecs Mannesmann AG, Mannesmann Arcor AG & Co. is engaged in telecommunications. The company is based in Eschborn, Germany.

Mannesmann Mobilfunk GmbH operates mobile telephone activities.

Part of euNetworks Group Ltd., Lambdanet Communications Deutschland AG provides telecommunications and internet services. The company is based in Hannover, Germany. Markus Weiland has been the CEO of the German company since 2013. Lambdanet Communications Deutschland was acquired by euNetworks GmbH from 3U Holding AG on May 31, 2011 for $35.63 million.

Eunetworks 1 Pte Ltd. engages in the provision of wired communications services. It operates through the Network and Colocation segments. The Network segment deals with the operation of fiber networks and providing communications infrastructure, and networking solutions and services. The Colocation segment handles the operation of secure data centers, which offers primary or back up data centers, disaster recovery locations and complex cloud hosting environments services. The company was founded by Noel Meaney on September 18, 1999 and is headquartered in Singapore.

AWIN AG provides performance-based online advertising solutions. It specializes in the development and operation of a web-based publisher and affiliate marketing network. The firm's solutions and services encompass affiliate marketing, affiliate campaigns, mobile marketing, performance display, and developer solutions. The company was founded by Thomas Hessler, Heiko Rauch, and Jens Hewald in 2000 and is headquartered in Berlin, Germany.

euNetworks GmbH provides wired communications services. It offers network map, dark fibre, long haul wavelengths, internet, euSpectrum, managed optical network and cloud conncet. The company was founded on July 6, 2010 and is headquartered in Frankfurt am Main, Germany.

finocom AG provides software solutions for telecommunications. Its products include placetel free, placetel professional, placetel complete, and bid evaluation. The company was founded by Peter Nowack, Italo Adami, Markus Haas, and Kamran Hedjrat-Yazdi in 2007 and is headquartered in Cologne, Germany.

Dark3, Inc. provides cyber security services. Its platform offers real time monitoring, threat intelligence, predictive analytics, and active blocking solutions. The company was founded by Vince Crisler and Theresa Payton and is headquartered in Alexandria, VA.