Wiltshire Council has named Vinci and Leadbitter among the winners on a £350 million extra care housing framework.
The 10-year framework covers the new build and refurbishment of facilities for use as extra care housing schemes, as well as hard and soft facilities management services.
The Orders St John Care Trust, Aster Group and Housing 21 have also secured places on the framework.
The group announced last week that its UK revenue had risen 16.5 per cent in the last year.
Leadbitter announced its 2010 profits fell by half earlier last month but new parent company Bouygues last week said its revenue had been significantly boosted by the acquisition.