Cabinet Office

The Cabinet Office is a central UK Government department with a statutory role in coordinating policy delivery across Whitehall and supporting the Prime Minister and the Cabinet. It traces its origins to 1916, when a formal Cabinet Secretariat was established to record government decisions and coordinate wartime administration. Today the department sits at the centre of government machinery, managing functions including the Civil Service, the Government Digital Service, proprietary ministerial recruitment, constitutional and devolution questions, national security coordination and public sector reform. The Minister for the Cabinet Office holds Cabinet rank; day-to-day management falls to the Cabinet Secretary, the most senior civil servant in the UK, and the Principal Private Secretary.

In practice, the Cabinet Office's relevance to tech and innovation policy lies in its cross-government coordination role. Programmes that require multiple departments to operate in parallel, such as the Government Digital Service's digital transformation agenda, the Geospatial Commission and the procurement frameworks used by entities like the National Space Operations Centre (NSOC), draw on Cabinet Office machinery for contract management and inter-departmental clearing. The NSOC space-surveillance contracts won by Spaceflux in April 2026, which placed the company as the operating system for UK orbital surveillance, sit under contract frameworks that Cabinet Office procurement policy governs .

For startup policy, the Cabinet Office is the upstream enabler for most cross-government programmes. When departments such as DSIT, the Home Office or the Ministry of Defence run procurement competitions or establish new public bodies, Cabinet Office sign-off on spending and governance is typically a prerequisite.