The new contract will cover over 500 buildings across a range of sites in the UK, with major activity in Sellafield, Cumbria and Cheshire.
The deal is worth £200 million over the five-term of the contract. Mitie will start the enlarged integrated FM contract in January.
The Cumbrian Collaboration includes Sellafield Ltd, the Nuclear Decommissioning Authority, Direct Rail Services, Low Level Waste Repository Ltd and International Nuclear Services.
Over 500 people will be employed as part of the contract and the services provided will include: facilities management, building maintenance; security; cleaning; waste management; catering and other FM and energy services.
This award builds on Mitie’s 11-year relationship with both Sellafield and the NDA.
The contract was tendered through the Government Procurement Service facilities management framework agreement.