Torsten Hauschildt

Open-Xchange AG develops e-mail and collaboration software solutions. It specializes in the development of tools for on-premise or on-demand solutions, geared towards fueling clients' businesses. The company designs an application suite, a centralized cloud environment that lets users manage digital lives, emails, tasks, and files from a single interface. Its solutions include e-mail, calendar, address book, document, and task management applications. The company was founded by Rafael Laguna de la Vera, Martin Kauss and Frank Hoberg in 2005 and is headquartered in Nuremberg, Germany.

United Internet Investments Holding GmbH operates as a venture capital firm. The company is headquartered in Montabaur, Germany.

Mobile Ventures GmbH (Mobile Ventures) is the venture capital subsidiary of MSP Holding GmbH, itself a subsidiary of 1&1 Drillisch AG. The firm was founded in 2013 and is headquartered in Maintal, Germany.

Çizgi Telekomünikasyon AS provides website hosting services. It offers domain, server, network, and security solutions, as well as data management and customer support services under the brand name Natro. The company was founded by Tolga Kabakci and Hüseyin Caymaz on May 31, 1999 and is headquartered in Istanbul, Turkey.