RM has closed a £4.2m deal with Somerset County Council through the Building Schools for the Future (BSF) programme.
The contract, which is due to commence in 2012, includes the provision of hardware, systems management and IT support to three sample schools in the region.
RM will deliver these services as part of the BAM consortium.
News of the contract win comes less than three months after RM confirmed that the government's decision to axe BSF could result in projects involving 13 sample schools being shelved.
Terry Sweeney, chief executive of RM, said: "It is great news that we have been able to reach financial close for the sample schools in the Somerset programme.
"We look forward to working with our partners in the BAM consortium, with teachers in Somerset and with Somerset County Council, to provide great learning environments for pupils."
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