Interserve has been awarded a contract extension worth more than £4 million to provide total facilities management (TFM) services at 10 South Colonnade in London, a building used by eight government departments.
Interserve employs more than 150 people on the contract to deliver maintenance and electrical work, front of house, logistics, catering and security services.
The 12-storey building, known as 10SC, is in Canary Wharf and has the capacity for 6,000 people. It is the government's first hub building, representing a new approach to its estates strategy by bringing multiple departments under one roof to boost efficiencies.
The company said it has started to trial electronic monitoring equipment to monitor efficient room use and workspace management.
Brian Talbot, managing director of central government and defence at Interserve, said: "We believe that creating genuine partnerships with our clients enables us to create real value for them and is the best way to foster long-term relationships that work for both parties."