Jan Geldmacher (born 1962) studied business administration in Cologne, Germany and began his professional career in 1990 in the sales division at AT&T/NCR. He subsequently moved to o.tel.o communications before joining debis system house as Vice President of Network Operations & International Support.

In 2000, Geldmacher started a five year period of employment at Deutsche Telekom, where he held a position on the Executive Board of T-Systems International between 2001 and 2004. He was then Managing Director of BT Germany until 2008.

In July 2008, the Supervisory Board of Arcor AG & Co. KG appointed Geldmacher as a member of the Arcor Executive Board. In September of the same year he also assumed the position of Director of Business Customers at Arcor and was named Chief Commercial Officer Enterprise at Vodafone Germany. Since then he has been responsible for the business customer divisions at both companies.

Since joining Vodafone in 2008 as Enterprise Business Unit Director of Vodafone Germany, Jan has grown the Enterprise business in Germany by 5.6% and in co-operation with VGE, his team won major multi-national client contracts including BMW, Siemens, Allianz and the Volkswagen Group.

Jan was appointed as CEO of Vodafone Global Enterprise on 30th July 2012