20 Honourable Artillery Company officers

Raymond Thomas Casamajor Addington was a British Army soldier who won the Military Cross in the Netherlands in 1944/45 for his bravery as a battery captain with the 13th Honourable Artillery Company (HAC), Royal Horse Artillery (RHA).

Hugh William Fortescue, 5th Earl Fortescue,, styled Viscount Ebrington from 1905 until 1932, of Castle Hill in the parish of Filleigh, of Weare Giffard Hall, both in Devon and of Ebrington Manor in Gloucestershire, was a British peer, military officer, and Conservative politician.

Colonel Paul Richard Freyberg, 2nd Baron Freyberg, was a British soldier and peer.

General Sir Timothy John Granville-Chapman, is a former British Army officer, who served as Vice-Chief of the Defence Staff of the British Armed Forces (2005–2009).

Lieutenant Colonel Reginald Leonard Haine was an English recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces.

Sir Edward Richard George "Ted" Heath was a British politician who served as Prime Minister of the United Kingdom from 1970 to 1974 and Leader of the Conservative Party from 1965 to 1975. Heath also served for 51 years as a Member of Parliament from 1950 to 2001. Outside politics, Heath was a world-class yachtsman, a talented musician, and an author.

Thomas Ernest Hulme was an English critic and poet who, through his writings on art, literature and politics, had a notable influence upon modernism. He was an aesthetic philosopher and the 'father of imagism'.

Andrew Brooke Leslie is a retired Canadian Forces lieutenant-general and politician who served as the chief of the Land Staff from 2006 to 2010 and as a member of Parliament representing the riding of Orléans in the House of Commons, from the 2015 federal election to the 2019 election.

Sir Archibald Leonard Lucas Lucas-Tooth, 2nd Baronet was a Baronet of the United Kingdom born on 3 June 1884 to Sir Robert Lucas-Tooth, 1st Baronet and Helen Tooth, the youngest of three sons. Both his elder brothers were killed in action during the early part of World War I, and he died of illness towards the end of the war.

Robert E. MacLaren FMedSci FRCOphth FRCS FACS VR is a British ophthalmologist who has led pioneering work in the treatment of blindness caused by diseases of the retina. He is Professor of Ophthalmology at the University of Oxford and Honorary Professor of Ophthalmology at the UCL Institute of Ophthalmology. He is a Consultant Ophthalmologist at the Oxford Eye Hospital and an Honorary Consultant Ophthalmologist at the Great Ormond Street Hospital. He is also an Honorary Consultant Vitreo-retinal Surgeon at the Moorfields Eye Hospital. MacLaren is an NIHR Senior Investigator, or lead researcher, for the speciality of Ophthalmology. In addition, he is a member of the research committee of Euretina: the European Society of Retina specialists, Fellow of Merton College, in Oxford and a Fellow of the Higher Education Academy.

Hugh Patrick Guarin Maule DSO MC FRIBA was a British architect whose work included the Royal Veterinary College in London opened by George VI in 1937. Between 1919 and 1923 he was Chief Architect to the Ministry of Agriculture and Fisheries and also served as architect to the trustees of the Douglas Haig Memorial Homes for Ex-Soldiers.

Major Gilbert McMicking was a Scottish Liberal Party politician.

General Sir Richard Nugent O'Connor, was a senior British Army officer who fought in both the First and Second World Wars, and commanded the Western Desert Force in the early years of the Second World War. He was the field commander for Operation Compass, in which his forces destroyed a much larger Italian army – a victory which nearly drove the Axis from Africa, and in turn, led Adolf Hitler to send the Afrika Korps under Erwin Rommel to try to reverse the situation. O'Connor was captured by a German reconnaissance patrol during the night of 7 April 1941 and spent over two years in an Italian prisoner of war camp. He eventually escaped after the fall of Mussolini in the autumn of 1943. In 1944 he commanded VIII Corps in the Battle of Normandy and later during Operation Market Garden. In 1945 he was General Officer in Command of the Eastern Command in India and then, in the closing days of British rule in the subcontinent, he headed Northern Command. His final job in the army was Adjutant-General to the Forces in London, in charge of the British Army's administration, personnel and organisation.

Alfred Oliver Pollard VC MC & Bar DCM was an English recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces. He later became a prolific author of crime and mystery books.

Thomas Tannatt Pryce VC MC & Bar was a British recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces. An officer with the Grenadier Guards during the First World War, he was posthumously awarded the VC for his actions over the period 11 to 13 April 1918, during the German spring offensive.

Philip Skippon supported the Parliamentry cause during the English Civil War as a senior officer in the New Model Army. Prior to the war he fought in the religious wars on the continent. During the Interregnum he was a member of Parliament, an active soldier and on occasions a government administrator.

Sir George Frederick Stanley was a British soldier and Conservative Party politician who served as a member of the UK Parliament for Preston and later, Willesden East. He also served the Governor of Madras from 1929 to 1934 and as Acting Viceroy of India in 1934.

Brigadier General Robert James Loyd-Lindsay, 1st Baron Wantage, was a British soldier, politician, philanthropist, benefactor to Wantage, and first chairman and co-founder of the British National Society for Aid to the Sick and Wounded in War, for which he crucially obtained the patronage of Queen Victoria.

Sir Albert Lambert Ward, 1st Baronet was a volunteer soldier in the Territorial Army and a Conservative Party politician in the United Kingdom.

Lieutenant General Sir Barnabas William Benjamin "Barney" White-Spunner, is a former British Army officer, who was subsequently executive chairman of the Countryside Alliance until 2016. He is an author, a director of Burstock Ltd. and was appointed chairman of the advisory board of UK Fisheries Ltd in October 2018.