The members of the digital team, which is run by the head of new-media, John-Paul Edwards, will be moved to the individual brand groups around which the agency structures the rest of its media services including press and TV.
"This move will allow a lot more client focus and will help to get digital more integrated into the schedules of clients," Edwards said. "I will still be responsible for making sure that the quality and output is still of a high standard."
No-one will be made redundant and the overall digital output will continue to be overseen by Edwards.
As part of the restructure, OMDi will be re-branded as OMD Digital in the New Year.
In an unrelated move, Hugh Gage, the head of online planning and buying, has left the company to go travelling and will not be replaced. His role will be covered by Edwards and the account director Amy Lennox.