The Crown Commercial Service (CCS) is inviting tenders for its new £12bn facilities management framework.
The deal will replace the previous £4.1bn FM framework that was set up in 2015 and is due to expire in July 2019.
It will run from May 2018 to May 2020, with an option for it to be extended up to 2022.
CCS expects government departments, including the Ministry of Defence, the NHS and central and local government, to procure as much as £12bn of work through the framework, with individual contracts worth as much as £1.2bn.
The deadline for tenders is 12 February and a spokesperson for the CCS said it plans to announce the successful bidders in May, when the framework becomes operational.
Unlike its predecessor, the new framework is open to joint ventures and consortiums.
CCS said it has had a number of enquiries from companies interested in delivering services through such arrangements.
However, the client added that any JV or consortium will need to have a lead partner or be a new legal entity if it is to deal with the CCS.
The previous framework featured a number of major construction companies.
Carillion secured places on all three lots, while Amey, Bouygues, Galliford Try, Interserve, Kier and Mitie also won places.
The new deal covers hard FM, encompassing building and infrastructure works, as well as soft FM, comprising services for personnel and organisations.