Cabinet Office

The Cabinet Office (CO) supports the Prime Minister and Deputy Prime Minister, and ensures the effective running of government. The Cabinet Office is also the corporate headquarters for government, in partnership with HM Treasury, and takes the lead in certain critical policy areas.
Ministers.
The Cabinet Office is a department of the Government of the United Kingdom works for supporting the prime minister and Cabinet of the United Kingdom. It is made of many units that support Cabinet committees. Staff working in the Prime Minister's Office are part of the Cabinet Office.