Christoph Hellrung

Part of 3U Holding AG, Solarpark Adelebsen GmbH is a company that engages in generating electric power. The company is based in Adelebsen, Germany. The CEOs of the German company are Michael Schmidt, Christoph Hellrung.

OneTel Telecommunication GmbH provides call-by-call and call-through services to both private and business customers. The private company is based in Marburg, Germany. The German company offers optimal service at the best possible prices. Customers can contact their support team via phone, email, or contact form. The CEOs are Christoph Hellrung and Uwe Knoke. The company was founded in 1999.

Part of 3U Holding AG, LineCall Telecom GmbH is a telecommunications company based in Marburg, Germany. The German company provides Preselection services that allow customers to make calls at a lower price and with high network quality. In addition, LineCall offers efficient solutions for business customers through its flexible tariff model, BusinessFlex. The company was founded in 2002, and its CEOs are Michael Schmidt and Uwe Knoke.

Part of Exact Holding BV, weclapp SE is a German software company that develops ERP, CRM, and financial accounting software. The company is based in Frankfurt, Germany. The company was founded in 2008 by Ertan Özdil. Ertan Özdil has been the CEO since 2008. weclapp was acquired by Exact Holding BV from 3U Holding AG on September 03, 2022.

Part of Cogent Communications Holdings, Inc., LambdaNet Communications GmbH is a German company that provides telecommunication services. The company is based in Hannover, Germany. LambdaNet Communications was acquired by Firstmark Communications Europe SA on January 24, 2000.

Part of 3U Holding AG, 3U Energy AG is a German company that wholesales electronic equipment and accessories. The company is based in Marburg, Germany and was founded in 2009.

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.