| Advocate General for Scotland, Office of the | 020 7270 6720 |
| Attorney General's Office | 020 7271 2400 |
| Business, Enterprise and Regulatory Reform, Department for | 020 7215 5000 |
| Cabinet Office | 020 7276 0656 |
| Central Office of Information | 020 7928 2345 |
| Charity Commission | 020 7674 2483 |
| Children, Schools and Families, Department for | 0870 000 2288 |
| Communities and Local Government, Department for | 020 7944 4400 |
| Crown Estate | 020 7851 5000 |
| Crown Prosecution Service | 020 7796 8000 020 7796 8500 |
Culture, Media and Sport, Department for | 020 7211 6000 020 7211 6200 | Energy and Climate Change, Department for | 030 0060 4000 |
| Environment, Food and Rural Affairs, Department for | 08459 33 55 77 |
| Export Credits Guarantee Department | 020 7512 7000 |
| Food Standards Agency | 020 7276 8000 |
| Foreign and Commonwealth Office | 020 7008 1500 |
| Forestry Commission | 0131 334 0303 |
| Government Actuary's Department | 020 7211 2600 |
| Government Banking Service | 020 8929 6800 |
| Government Equalities Office | 0845 000 4999 |
| Health and Safety Executive | 0151 951 4000 |
| Health, Department of | 020 7210 3000 |
| HMCPS Inspectorate | 020 7210 1197 |
| Home Office | 020 7035 4848 |
| Innovation, Universities and Skills, Department for | 020 3300 8002 |
| International Development, Department for | 0845 300 4100 020 7023 0000 |
Land Registry | 020 7917 8888 |
| Law Commission | 020 3334 0200 |
| Legal Services Commission | 020 7783 7000 |
| Ministry of Defence | 020 7218 9000 |
| Ministry of Justice | 020 3334 3555 |
| National Archives (Public Record Office (PRO) and Historical Manuscript Commission (HMC)) | 020 8876 3444 |
| Northern Ireland Office | 020 7210 3000 028 9052 0700 |
Office for National Statistics | 020 7533 5888 |
| Office for Standards in Education, Children's Services and Skills (Ofsted) | 08456 40 40 40 |
| Office of Fair Trading | 020 7211 8000 |
| Office of Gas and Electricity Markets (Ofgem) | 020 7901 7000 |
| Office of Government Commerce | 0845 000 4999 |
| Office of Public Sector Information | 01603 621000 |
| Office of Rail Regulation | 020 7282 2000 |
| Office of the Leader of the House of Commons | 020 7276 1005 |
| Parliamentary Boundary Commission for England | 020 7014 2452 |
| Parliamentary Counsel | 020 7210 2588 |
| Prime Minister's Office | 020 7270 3000 |
| Privy Council Office | 020 7930 6282 |
| Revenue and Customs, Her Majesty's | 020 7147 0000 |
| Revenue and Customs Prosecutions Office | 020 7147 7500 |
| Royal Mint | 01443 222111 |
| Scotland Office | 020 7270 6754 0131 244 9010 |
Serious Fraud Office | 020 7239 7272 |
| Transport, Department for | 020 7944 8300 |
| Treasury Solicitor's Department | 020 7210 3000 |
| UK Statistics Authority | 0845 601 3034 |
| UK Trade and Investment | 020 7215 8000 |
| Wales Office | 020 7270 0549 |
| Water Services Regulation Authority (Ofwat) | 0121 625 1300 |
| Work and Pensions, Department for | 020 7962 8000 |