| Department for Work and Pensions |
2462 |
| HM Revenue & Customs |
1671 |
| Ministry of Justice |
924 |
| Home Office |
800 |
| Department for Transport |
336 |
| Department for Education |
210 |
| Department for Environment, Food and Rural Affairs |
159 |
| Department for Communities and Local Government |
137 |
| Department of Health |
136 |
| Department for Business, Innovation and Skills |
128 |
| Department of Energy and Climate Change |
67 |
| Foreign and Commonwealth Office |
51 |
| Ministry of Defence |
39 |
| Department for Culture, Media and Sport |
28 |
| Government Equalities Office |
22 |
| Charity commission |
17 |
| Office for Standards in Education, Children's Services and Skills (Ofsted) |
17 |
| HM Treasury |
15 |
| Office of Fair Trading |
14 |
| Forestry Commission |
13 |
| Office of Communications (Ofcom) |
12 |
| Electoral Commission |
11 |
| Water Services Regulation Authority (OFWAT) |
10 |
| Food Standards Agency |
8 |
| Law Officers |
8 |
| Gas and Electricity Markets Authority |
4 |
| Independent Regulator of NHS Foundation Trusts (Monitor) |
4 |
| Northern Ireland Office |
4 |
| Crown Estate Office |
1 |
| Department for International Development |
1 |