Management Board

The Management Board of United Internet AG consists of five persons: Ralph Dommermuth, Robert Hoffmann, Frank Krause, Jan Oetjen and Martin Witt.


Ralph Dommermuth
CEO since 1988

Ralph Dommermuth laid the foundation for today’s United Internet AG with the formation in 1988 of 1&1 Marketing GmbH. He originally offered systemized marketing services for smaller software suppliers. He later developed additional marketing services for major clients, such as IBM, Compaq and Deutsche Telekom. With the growing professionalization of the internet, these marketing services for third parties were gradually reduced and the company offered its own internet services. In 1998 the qualified banker took 1&1 to the stock exchange. It was the first IPO of an internet company in Germany. In 2000, Dommermuth restructured 1&1 as United Internet AG.


Robert Hoffmann
Member of the Board for Business Applications since 2013, deputy CEO

Robert Hoffmann has been with 1&1 Internet AG since June 2006 and held various positions on the Management Board. He has played a major role in determining the company’s strategic direction. As Management Board member responsible for the Access division, he first successfully changed the company’s DSL business model to complete packages, integrated the DSL business of freenet and expanded the 1&1 business model with the addition of mobile internet products. Since May 2008, Robert Hoffmann has also acted as the Management Board Speaker of 1&1 Internet AG. After realigning 1&1’s international sales operations in 2011/2012 as Management Board member responsible for Sales, Robert Hoffmann has headed the Hosting division of 1&1 since October 2012.


Frank Krause
CFO since 2015

Frank Krause has been a member of the Management Board of United Internet AG since 2015 and responsible for Finance and Controlling, Risk Management/Internal Audit, Investment Management and Human Resources. Frank Krause has over 20 years of experience in the telecommunications industry. In his last position, he was a member of the Management Board of Vodafone Germany with responsibility for Strategy & Corporate Development.


Jan Oetjen
Member of the Management Board for Consumer Applications since 2014

Jan Oetjen joined the United Internet Group in October 2008 and has since been responsible for the Mail and Portal businesses of the brands WEB.DE and GMX. Under his leadership, United Internet acquired the portal mail.com in 2010. He also headed the Group’s launch of De-Mail services in 2013 as well as the security initiative “E-Mail made in Germany” in cooperation with Deutsche Telekom.


Martin Witt
Member of the Management Board for Access since 2014

Martin Witt is CEO of 1&1 Telecommunication AG since April 1, 2014. He was previously a member of the Management Board with responsibility for the Access business at 1&1 Internet AG after heading the Access Product Management division from July 2009 to June 2011. In 2013, Martin Witt was elected to the Executive Committee of the German Association of Telecommunications and Value-Added Service Providers (Verband der Anbieter von Telekommunikations- und Mehrwertdiensten e. V. - VATM) and is actively engaged in the NGA Forum of Germany’s Federal Network Agency (Bundesnetzagentur) as well as the German government’s IT Summit. Martin Witt studied Physics and started his professional career as development engineer at Siemens. He is working in the field of Telecommunications since 1994 and joined 1&1 Internet AG in 2009.