| Office | Name | Dates | Notes |
Prime Minister, First Lord of the Treasury and Minister for the Civil Service | Edward Heath | 19 June 1970 – 4 March 1974 | |
| Parliamentary Secretary for the Civil Service Department | David Howell | 23 June 1970 – 26 March 1972 | |
| Kenneth Baker | 7 April 1972 – 4 March 1974 | |
| Geoffrey Johnson-Smith | 5 November 1972 – 4 March 1974 | |
| Lord High Chancellor of Great Britain | Quintin Hogg, Baron Hailsham of St Marylebone | 20 June 1970 | |
Lord President of the Council and Leader of the House of Commons | William Whitelaw | 20 June 1970 | |
| Robert Carr | 7 April 1972 | |
| Jim Prior | 5 November 1972 | |
Lord Keeper of the Privy Seal and Leader of the House of Lords | George Jellicoe, 2nd Earl Jellicoe | 20 June 1970 | |
| David Hennessy, 3rd Baron Windlesham | 5 June 1973 | |
| Chancellor of the Exchequer | Iain Macleod | 20 June 1970 | Died in office, 20 July 1970 |
| Anthony Barber | 25 July 1970 | |
| Chief Secretary to the Treasury | Maurice Macmillan | 23 June 1970 | |
| Patrick Jenkin | 7 April 1972 | |
| Tom Boardman | 8 January 1974 | |
| Minister of State for Treasury | Terence Higgins | 23 June 1970 | |
| John Nott | 7 April 1972 | |
| Parliamentary Secretary to the Treasury | Francis Pym | 20 June 1970 | |
| Humphrey Atkins | 2 December 1973 | |
| Financial Secretary to the Treasury | Patrick Jenkin | 23 June 1970 | |
| Terence Higgins | 7 April 1972 | |
| Lords of the Treasury | Reginald Eyre | 24 June 1970 – 23 September 1970 | |
| David Howell | 24 June 1970 – 6 January 1971 | |
| Hector Monro | 24 June 1970 – 28 July 1971 | |
| Bernard Weatherill | 24 June 1970 – 17 October 1971 | |
| Walter Clegg | 24 June 1970 – 7 April 1972 | |
| Victor Goodhew | 21 October 1970 – 9 October 1973 | |
| Paul Hawkins | 5 January 1971 – 2 December 1973 | |
| Tim Fortescue | 8 November 1971 – 7 April 1972 | |
| Keith Speed | 8 November 1971 – 21 September 1973 | |
| Hugh Rossi | 7 April 1972 – 8 January 1974 | |
| Oscar Murton | 7 April 1972 – 30 October 1973 | |
| Michael Jopling | 30 October 1973 – 4 March 1974 | |
| Hamish Gray | 30 October 1973 – 4 March 1974 | |
| John Stradling Thomas | 30 October 1973 – 4 March 1974 | |
| Marcus Fox | 2 December 1973 – 4 March 1974 | |
| Kenneth Clarke | 8 January 1974 – 4 March 1974 | |
| Foreign Secretary | Alec Douglas-Home | 20 June 1970 | |
| Minister of State for Foreign and Commonwealth Affairs | Joseph Godber | 23 June 1970 – 5 November 1972 | |
| Richard Wood | 15 October 1970 – 4 March 1974 | |
| Priscilla Buchan, Baroness Tweedsmuir | 7 April 1972 – 4 March 1974 | |
| Julian Amery | 5 November 1972 – 4 March 1974 | |
| Robert Lindsay, Baron Balniel | 5 November 1972 – 4 March 1974 | |
| Under-Secretary of State for Foreign and Commonwealth Affairs | Peter Kerr, 12th Marquess of Lothian | 24 June 1970 – 7 April 1972 | |
| Anthony Royle | 24 June 1970 – 8 January 1974 | |
| Anthony Kershaw | 15 October 1970 – 5 June 1973 | |
| Peter Blaker | 8 January 1974 – 4 March 1974 | |
| Minister for Overseas Development | Richard Wood | 15 October 1970 | |
| Home Secretary | Reginald Maudling | 20 June 1970 | |
| Robert Carr | 18 July 1972 | |
| Minister of State for Home Affairs | Richard Sharples | 23 June 1970 – 7 April 1972 | |
| David Hennessy, 3rd Baron Windlesham | 23 June 1970 – 26 March 1972 | |
| Mark Carlisle | 7 April 1972 – 4 March 1974 | |
| Mark Colville, 4th Viscount Colville of Culross | 21 April 1972 – 4 March 1974 | |
| Under-Secretary of State for Home Affairs | Mark Carlisle | 24 June 1970 | |
| David Lane | 7 April 1972 | |
| Minister of Agriculture, Fisheries and Food | Jim Prior | 20 June 1970 | |
| Joseph Godber | 5 November 1972 | |
| Minister of State for Agriculture, Fisheries and Food | Anthony Stodart | 7 April 1972 | New post |
| Parliamentary Secretary to the Ministry of Agriculture, Fisheries and Food | Anthony Stodart | 24 June 1970 – 7 April 1972 | |
| Peter Mills | 7 April 1972 – 5 November 1972 | |
| Peggy Fenner | 5 November 1972 – 4 March 1974 | |
| Robert Washington Shirley, 13th Earl Ferrers | 8 January 1974 – 4 March 1974 | |
| Minister for Aviation Supply | Frederick Corfield | 15 October 1970 | New post. Abolished 1 May 1971 and functions transferred to Ministry of Defence |
| Parliamentary Secretary for Aviation Supply | David Price | 15 October 1970 | New post. Abolished 1 May 1971 and functions transferred to Ministry of Defence |
| Secretary of State for Defence | Peter Carington, 6th Baron Carrington | 20 June 1970 | |
| Ian Gilmour | 8 January 1974 | |
| Minister of State for Defence | Robert Lindsay, Baron Balniel | 23 June 1970 | |
| Ian Gilmour | 5 November 1972 | |
| George Younger | 8 January 1974 | |
| Minister of State for Defence Procurement | Ian Gilmour | 7 April 1971 | Office abolished 5 November 1972 |
| Under-Secretary of State for the Navy | Peter Kirk | 24 June 1970 | |
| Antony Buck | 5 November 1972 | |
| Under-Secretary of State for the Air Force | Antony Lambton | 24 June 1970 | |
| Anthony Kershaw | 5 June 1973 | |
| Euan Howard, 4th Baron Strathcona and Mount Royal | 8 January 1974 | |
| Under-Secretary of State for the Army | Ian Gilmour | 24 June 1970 | |
| Geoffrey Johnson-Smith | 7 April 1971 | |
| Peter Blaker | 5 November 1972 | |
| Dudley Smith | 8 January 1974 | |
| Secretary of State for Education and Science | Margaret Thatcher | 20 June 1970 | |
| Minister of State, Education and Science | Norman St John-Stevas | 5 June 1973 | Minister for the Arts |
| Under-Secretary of State, Education and Science | John Ganzoni, 2nd Baron Belstead | 24 June 1970 – 5 June 1973 | |
| William van Straubenzee | 24 June 1970 – 5 November 1972 | |
| Norman St John-Stevas | 5 November 1972 – 2 December 1973 | |
| Timothy Raison | 5 June 1973 – 4 March 1974 | |
| John Edmondson, 2nd Baron Sandford | 2 December 1973 – 4 March 1974 | |
| Secretary of State for Employment | Robert Carr | 20 June 1970 | Employment and Productivity until 12 November 1970 |
| Maurice Macmillan | 7 April 1972 | |
| William Whitelaw | 2 December 1973 | |
| Minister of State, Employment | Paul Bryan | 23 June 1970 | |
| Robin Chichester-Clark | 7 April 1972 | |
| Under-Secretary of State, Employment | Dudley Smith | 24 June 1970 – 7 January 1974 | |
| David Howell | 5 January 1971 – 26 March 1972 | |
| Nicholas Scott | 8 January 1974 – 4 March 1974 | |
| Secretary of State for Energy | Peter Carington, 6th Baron Carrington | 8 January 1974 | |
| Minister for Energy | Patrick Jenkin | 8 January 1974 | In Cabinet |
| Minister of State, Energy | David Howell | 8 January 1974 | |
| Under-Secretary of State, Energy | Peter Emery | 8 January 1974 | |
| Secretary of State for the Environment | Peter Walker | 15 October 1970 | |
| Geoffrey Rippon | 5 November 1972 | |
| Minister for Local Government and Development | Graham Page | 15 October 1970 | |
| Minister for Housing and Construction | Julian Amery | 15 October 1970 | |
| Paul Channon | 5 November 1972 | |
| Minister for Transport Industries | John Peyton | 15 October 1970 | |
| Under-Secretary of State, Environment | Eldon Griffiths | 15 October 1970 – 4 March 1974 | |
| Paul Channon | 15 October 1970 – 26 March 1972 | |
| John Cyril Edmondson, 2nd Baron Sandford | 15 October 1970 – 5 June 1973 | |
| Michael Heseltine | 15 October 1970 – 7 April 1972 | |
| Keith Speed | 7 April 1972 – 4 March 1974 | |
| Reginald Eyre | 7 April 1972 – 4 March 1974 | |
| Janet Young, Baroness Young | 5 June 1973 – 4 March 1974 | |
| Hugh Rossi | 8 January 1974 – 4 March 1974 | |
| Secretary of State for Social Services | Sir Keith Joseph | 20 June 1970 | |
| Minister of State, Health and Social Security | Morys Bruce, 4th Baron Aberdare | 23 June 1970 – 8 January 1974 | |
| Parliamentary Secretary, Health and Social Security | Paul Dean | 24 June 1970 – 4 March 1974 | |
| Michael Alison | 24 June 1970 – 4 March 1974 | |
| Secretary of State for Housing and Local Government | Peter Walker | 24 June 1970 – 15 October 1970 | Part of Environment from 15 October 1970 |
| Minister of State, Housing and Local Government | Graham Page | 23 June 1970 – 15 October 1970 | Part of Environment from 15 October 1970 |
| Parliamentary Secretary, Housing and Local Government | Eldon Griffiths | 23 June 1970 – 15 October 1970 | Part of Environment from Oct 1970 |
| Paul Channon | 23 June 1970 – 15 October 1970 |
| John Cyril Edmondson, 2nd Baron Sandford | 23 June 1970 – 15 October 1970 |
| Chancellor of the Duchy of Lancaster | Anthony Barber | 20 June 1970 | With special responsibility for Europe |
| Geoffrey Rippon | 28 July 1970 | |
| John Davies | 5 November 1972 | |
| Secretary of State for Northern Ireland | William Whitelaw | 24 March 1972 | |
| Francis Pym | 2 December 1973 | |
| Minister of State, Northern Ireland | Paul Channon | 26 March 1972 – 5 November 1972 | |
| David Hennessy, 3rd Baron Windlesham | 26 March 1972 – 5 June 1973 | |
| William van Straubenzee | 5 November 1972 – 4 March 1974 | |
| David Howell | 5 November 1972 – 8 January 1974 | |
| Under-Secretary of State, Northern Ireland | David Howell | 26 March 1972 – 5 November 1972 | |
| Peter Mills | 5 November 1972 – 4 March 1974 | |
| The Lord Belstead | 5 June 1973 – 4 March 1974 | |
| Minister of Overseas Development | Richard Wood | 23 June 1970 – 15 October 1970 | Reorganised under Foreign Office, 12 November 1970 |
| Paymaster General | David Eccles, 1st Viscount Eccles | 23 June 1970 | Minister for Arts. Not in Cabinet |
| Maurice Macmillan | 2 December 1973 | |
| Minister without Portfolio | Niall Macpherson, 1st Baron Drumalbyn | 15 October 1970 | |
| Morys Bruce, 4th Baron Aberdare | 8 January 1974 | |
| Minister for Posts and Telecommunications | Christopher Chataway | 24 June 1970 | |
| Sir John Eden | 7 April 1972 | |
| Minister of Public Buildings and Works | Julian Amery | 23 June 1970 – 15 October 1970 | Reorganised under Department of Environment 15 October 1970 |
| Parliamentary Secretary, Public Buildings and Works | Anthony Kershaw | 24 June 1970 – 15 October 1970 |
| Secretary of State for Scotland | Gordon Campbell | 20 June 1970 | |
| Minister of State for Scotland | Priscilla Buchan, Baroness Tweedsmuir of Belhelvie | 23 June 1970 | |
| Henry Hepburne-Scott, 10th Lord Polwarth | 7 April 1972 | |
| Under-Secretary of State for Scotland | Alick Buchanan-Smith | 24 June 1970 – 4 March 1974 | |
| George Younger | 24 June 1970 – 8 January 1974 | |
| Teddy Taylor | 24 June 1970 – 28 July 1971 | |
| Hector Monro | 28 July 1971 – 4 March 1974 | |
| Teddy Taylor | 8 January 1974 – 4 March 1974 | |
| Minister of Technology | Geoffrey Rippon | 20 June 1970 | |
| John Davies | 28 July 1970 – 15 October 1970 | Office reorganised under Trade & Industry 15 October 1970 |
| Minister of State, Ministry of Technology | Sir John Eden | 23 June 1970 – 15 October 1970 | Office reorganised under Trade & Industry 15 October 1970 |
| Frederick Ponsonby, 10th Earl of Bessborough | 24 June 1970 – 15 October 1970 |
| Parliamentary Secretary, Ministry of Technology | David Price | 24 June 1970 – 15 October 1970 | Office reorganised under Trade & Industry 15 October 1970 |
| Nicholas Ridley | 24 June 1970 – 15 October 1970 |
| President of the Board of Trade | Michael Noble | 20 June 1970 – 15 October 1970 | Office reorganised under Trade & Industry 15 October 1970 |
| Minister of State, Board of Trade | Frederick Corfield | 24 June 1970 – 15 October 1970 | Office reorganised under Trade & Industry 15 October 1970 |
| Parliamentary Secretary to the Board of Trade | Anthony Grant | 24 June 1970 – 15 October 1970 | Office reorganised under Trade & Industry 15 October 1970 |
| Secretary of State for Trade and Industry | John Davies | 15 October 1970 | |
| Peter Walker | 5 November 1972 | |
| Minister of State for Trade | Michael Noble | 15 October 1970 – 5 November 1972 | |
| Minister of State, Trade and Consumer Affairs | Sir Geoffrey Howe | 5 November 1972 | In Cabinet |
| Under-Secretary of State for Trade | Anthony Grant | 15 October 1970 | |
| Patrick Pery, 6th Earl of Limerick | 7 April 1972 | |
| Minister of State for Industry | Sir John Eden | 15 October 1970 | |
| Tom Boardman | 7 April 1972 | Office eliminated 8 January 1974 |
| Under-Secretary of State for Industry | Nicholas Ridley | 15 October 1970 | |
| Peter Emery | 7 April 1972 | Office eliminated 8 January 1974 |
| Minister for Aerospace | Frederick Corfield | 1 May 1971 | |
| Michael Heseltine | 7 April 1972 | Consolidated with Shipping 5 November 1972 |
| Under-Secretary of State for Aerospace | David Price | 1 May 1971 | |
| Cranley Onslow | 7 April 1972 | Consolidated with Shipping 5 November 1972 |
| Minister for Industrial Development | Christopher Chataway | 7 April 1972 | |
| Under-Secretary of State for Industrial Development | Anthony Grant | 7 April 1972 | |
| Minister of Transport | John Peyton | 23 June 1970 – 15 October 1970 | Transport merged with Environment Oct 1970 |
| Parliamentary Secretary to the Ministry of Transport | Michael Heseltine | 24 June 1970 – 15 October 1970 |
| Secretary of State for Wales | Peter Thomas | 20 June 1970 | |
| Minister of State for Wales | David Gibson-Watt | 23 June 1970 | |
| Attorney General | Sir Peter Rawlinson | 23 June 1970 | |
| Solicitor General | Sir Geoffrey Howe | 23 June 1970 | |
| Sir Michael Havers | 5 November 1972 | |
| Lord Advocate | Norman Wylie | 23 June 1970 | |
| Solicitor General for Scotland | David William Robert Brand | 23 June 1970 | |
| William Stewart | 5 November 1972 | Not an MP |
| Treasurer of the Household | Humphrey Atkins | 24 June 1970 | |
| Bernard Weatherill | 2 December 1973 | |
| Comptroller of the Household | Walter Elliott | 24 June 1970 | |
| Reginald Eyre | 24 September 1970 | |
| Bernard Weatherill | 7 April 1972 | |
| Walter Clegg | 2 December 1973 | |
| Vice-Chamberlain of the Household | Jasper More | 24 June 1970 | |
| Bernard Weatherill | 17 October 1971 | |
| Walter Clegg | 7 April 1972 | |
| Paul Hawkins | 2 December 1973 | |
| Captain of the Gentlemen-at-Arms | Michael Hicks Beach, 2nd Earl St Aldwyn | 24 June 1970 | |
| Captain of the Yeomen of the Guard | John Goschen, 3rd Viscount Goschen | 24 June 1970 | |
| Bertram Bowyer, 2nd Baron Denham | 20 November 1971 | |
| Lords in Waiting | Charles Stourton, 26th Baron Mowbray | 24 June 1970 – 4 March 1974 | |
| Bertram Bowyer, 2nd Baron Denham | 24 June 1970 – 20 November 1971 | |
| Nicholas Bethell, 4th Baron Bethell | 24 June 1970 – 5 January 1971 | |
| Robert Shirley, 13th Earl Ferrers | 5 January 1971 – 8 January 1974 | |
| Peter Kerr, 12th Marquess of Lothian | 7 April 1972 – 27 July 1973 | |
| Grey Gowrie, 2nd Earl of Gowrie | 7 April 1972 – 4 March 1974 | |
| Janet Young, Baroness Young | 21 April 1972 – 5 June 1973 | |
| Euan Howard, 4th Baron Strathcona and Mount Royal | 27 June 1973 – 8 January 1974 | |
| Richard Hill, 7th Baron Sandys | 8 January 1974 – 4 March 1974 | |
| Richard Wellesley, 6th Earl Cowley | 8 January 1974 – 4 March 1974 | |
| Shane Alexander, 2nd Earl Alexander of Tunis | 8 January 1974 – 4 March 1974 | |