The move is the first major change within the VTR Group since Indian post group Prime Focus took a controlling stake in April for £4.9m.
TMR, which was established 15 years ago and includes the BFI, Pathe, Shed and Disney among its clients, specialises in archive restoration and digitisation.
However, last week VTR confirmed it planned to close TMR's two sites in Wardour Street and Old Compton Street and said job losses would have to follow.
Sources have suggested that as many as 31 of TMR's estimated 47 staff could face losing their jobs, but VTR insisted that no final figure on redundancies had yet been reached and a 30-day consultation period with staff would now take place.
A statement by Paul Tracey, managing director of VTR plc said increasing competition in the market, pressure on rates and the cost of running two buildings had 'made it increasingly difficult to run TMR as a standalone, profitable business'.
Last year TMR reported operating losses of £47,825 on an annual turnover of £4.9m.
Tracey said: 'The board has decided with reluctance, that the only way forward for TMR is to move out [of the buildings] and for as many of its profitable activities and divisions as possible to be integrated into other parts of the VTR Group'.
He said how that will be done is still being worked out with staff but the duplication and encoding facilities will be moved into VTR offices in Bourchier Street, which will also house a small bookings and sales team and TMR's digital online service department.
The statement said that archive facilities, including telecine, restoration and the Film Treatment Centre, will be relocated within the group. VTR Group's director of operations Neil Lane said the TMR name would continue.