Tobias Kaulfuss

asknet Solutions AG engages in the development of e-commerce and online shop solutions. Its products include full service digital commerce, e-commerce value chain, and full service physical commerce. The company was founded by Dietmar Waudig on September 12, 1995 and is headquartered in Karlsruhe, Germany.

Der Grüne Punkt-Duales System Deutschland GmbH provides waste management, recycling, and take-back services. The firm specializes in the development of waste take-back, collection, and dual disposal systems for industrial firms and retailers. It operates through the following business fields: household waste collection and recycling of sales packaging, recycling of transport packaging, recycling of electrical and electronic equipment waste, facility waste disposal service, and deposit scheme. The company was founded in September 1990 and is headquartered in Cologne, Germany.

citadelle systems AG engages in the provision of information technology systems solutions. It offers managed services, software and hardware, data security, as well as telephony and network. The company was founded by Tobias Kaulfuß, André Achtermeier, Christian Ebertz, and Noel Kienzle on March 27, 2019 and is headquartered in Bergneustadt, Germany.