List of activities classified inside the UK SIC Code 84220
- Administration of defence-related research and development policies and related funds
- Ministry of Defence (forces personnel)
- Ministry of Defence Headquarters
- Pay and personnel agency (armed forces)
- Princess Mary's RAFNS
- Queen Alexandra's RANC
- Queen Alexandra's RNNS
- Royal Air Force Establishments (civilian personnel)
- Royal Air Force Establishments (service personnel)
- Royal Marines
- Royal Navy establishments (civilian personnel)
- Royal Navy establishments (service personnel)
- Support for defence plans and exercises for civilians
- Territorial Army
- Womens Royal Air Force
- Womens Royal Army Corps
- Ministry of Defence (civilian personnel)
- Military ports
- Administration supervision and operation of engineering, and other non-combat forces and commands
- Administration supervision and operation of intelligence and other non-combat forces and commands
- Administration supervision and operation of land, sea, air and space defence forces
- Administration supervision and operation of military defence affairs
- Administration supervision and operation of reserve/auxiliary forces of the defence establishment
- Administrative, operational and supervisory services related to civil defence
- Administrative, operational and supervisory services related to military defence
- Army establishment (civilian personnel)
- Army establishment (service personnel)
- Civil defence administration
- Defence activities
- Health activities for military personnel in the field
- Maritime search and rescue (military)
- Military defence administration
- Military logistics
- Womens Royal Naval Service