Founder of United Internet AG and 1&1 IONOS SE, Ralph Dommermuth is a businessperson who has been at the helm of 6 different companies and presently holds the position of Chief Executive Officer at United Internet AG and Chairman-Supervisory Board at Drillisch Netz AG and Chief Executive Officer at 1&1 Drillisch AG (both are subsidiaries of United Internet AG). In the past Ralph Dommermuth was Co-Managing Director at RD-II Projektentwicklungs GmbH & Co. KG, Chairman for United Internet Media AG, Chief Executive Officer for Drillisch AG and Member-Supervisory Board at 1&1 IONOS SE.