Originally from the Netherlands, Oldersma, 48, joins from technology distributor Ingram Micro. He begins his new role on February 1, 2008.
A Doughty Hanson spokesman said: “We are delighted to have attracted someone of Meinie’s calibre to 20:20 Mobile. He will lead the company in its next phase of growth."
Oldersma replaces Mark Ryan who left the group in October.