The £191m ($305m) education sector contract includes a £100m ($159m) contract for Greenwich Council’s Building Schools for the Future (BSF) initiative.
The first school, Thomas Tallis, is expected to be complete in October 2011, while Crown Woods is expected to be complete in April 2011.
Balfour Beatty is also the framework contractor to the North Lanarkshire Council Schools and Centres 21 Framework.
The company will design and provide preconstruction services on four schools as part of a £91m ($145m) contract.
Construction work is expected to commence on site in 2010.