In this newly-created role, Collison will report to Mel Varley, chief executive officer EMEA, and Keith Tiley, business development director EMEA.
Varley said: "Tim brings significant new skills and experience to the MEC European management team and will help us translate the reality of the MEC offer into perception in the marketplace and accelerate our growth."
The former finance journalist and editor of Professional Broking will join the WPP-owned network in December.
His move has made Emap look at the possibility of licensing the European title to a franchisee, which would be likely to publish the magazine on a contract basis, taking the responsibility away from Emap.
Collison has been the editor of M&M Europe since 2001, where he oversaw the redesign of the title. He was appointed publisher to add to his editor's duties in January 2005.
The appointment follows the announcement yesterday that Mediaedge:cia has restructured its senior management in the UK, including promoting managing director Tom George to the post of UK chief executive.
MEC, part of WPP's media investment company GroupM, has also made operations director Toby Jenner and head of strategy Steve Hatch joint managing directors. Stuart Sullivan-Martin, director of strategy, has beome chief strategy officer.
As the chief executive in charge of Mediaedge:cia's UK operation, George will have responsibility for managing all aspects of the UK business, including its MEC Sponsorship, MEC Interaction and MEC Manchester divisions. He will be supported in his new role by the three other appointees.
Mediaedge:cia's portfolio of clients across the EMEA region includes Sony Ericsson, Visa Europe, brewer SABMiller and Monster.com.
In the UK, recent new-business wins include the £5.5m Nintendo gaming account, the £5m brief for Coca-Cola Enterprises and the £10m business for high street video rental chain Blockbuster.
A spokeswoman for Mediaedge:cia confirmed Collison's appointment.
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