50 Squadron |
| Unit Name | Location | Dates | Higher Formation | Notes |
| | | | |
| 50 Field Squadron | England: Perham Down | Nov 48 - Oct 49 | 32 Assault Engineer Regiment | Formed |
| Hong Kong | Oct 49 - Jan 50 | 24 Field Engineer Regiment | Jan 1950 renumbered 11 Fld Sqn |
| England: Maidstone | Nov 50 - Nov 51 | 25 Field Engineer Regiment | Formed |
| Cyprus: | Nov 51 - Dec 51 | 25 Field Engineer Regiment | |
| Egypt: Canal Zone | Dec 51 - Jan 55 | 25 Field Engineer Regiment | |
| England: Maidstone | 1955 - 1957 | 25 Field Engineer Regiment | Disbanded |
| England: Maidstone | 1958 - Sept 58 | 25 Field Engineer Regiment | Re-formed |
| Germany: Osnabruck | Sept 58 - Aug 64 | 25 Corps Engineer Regiment | |
| Aden: Falaise Camp, Little Aden | Aug 64 - Oct 65 | ? | |
| England: Maidstone | Oct 65 - 1968 | 36 Engineer Regiment | |
| Aden | Sept 67 - Nov 67 | | A Troop |
| Cyprus | Jun - Dec 68 | | A Troop |
| Gibraltar | Jun 1970 | | Sqn HQ and two Tps |
| Northern Ireland Tour: Newtonbreda | 8 Feb to 6 Jun 72 | | |
| Northern Ireland Tour: Carnmoney | 3 Aug - 16 Sept 72 | | |
| Northern Ireland: | 19 May - 1 Jun 74 | | |
| Northern Ireland Tour: Maze Rebuild | 21 Oct 74 - 7 Dec 74 | 36 Engineer Regiment | |
| Oman: Op Tenable | Oct 76 - Jan 77 | | less a Tp in BELIZE |
| 50 Field Squadron (Construction) | England: Maidstone | Mar 77 - | 36 Engineer Regiment | Amalgamated with 63 HQ Sqn (Airfields) to form 50 Fld Sqn (Const). |
| Kenya | 3 Jan to 8 May 79
| | construction work for the Kenyan Army at the old RAF Lannet |
| Canada | 16 Jun - 8 Oct 81
| | construction work for the Canadian Forces at CFB Cagetown, New Brunswick |
| Falkland Islands | 20 Jun - 31 Jul 82 | | OP CORPORATE |
| Falkland Islands | 1 Aug - 9 Dec 82
| | build/rebuild of Port Stanley airfield |
| Cyprus | 30 Aug - 28 Sept 88 | | Ex Lion Sun |
| Saudi Arabi | 20 Mar - July 91 | | Op Granby |
| 50 Headquarter Squadron | England: Invicta Park Barracks, Maidstone | c2007 | 36 Engineer Regiment | |
| | | | |
| | | | |
51 Squadron |
| Unit Name | Location | Dates | Higher Formation | Notes |
| | | | |
| 51 Port Training Squadron | England: Marchwood | Apr 48 - 1965 | 17 Port Training Regiment | Formed by redesignation of 1018 Port Op Coy from BAOR |
| Middle East | Jan - Sept 57 | 17 Port Training Regiment | |
| Cyprus | Jun 58 - 1959 | 17 Port Training Regiment | |
| 51 Port Operating Squadron | Cyprus | 1959 - Dec 60 | 17 Port Training Regiment | |
| England: Marchwood | Dec 60 - 1962 | 17 Port Training Regiment | |
| 51 Port Squadron | England: Marchwood | 1962 - Jul 65 | 17 Port Training Regiment | Disbanded. Port duties taken over by RCT |
| 51 Field Squadron (Airfields) | England: Ripon | Aug 65 - Jan 66 | 38 Engineer Regiment | Reformed |
| Singapore | Jan 66 - Mar 68 | | Took over from 5001 Airfield Const Sqn (Light) of the RAF |
| England: Waterbeach | Mar 68 - Jun 77 | 39 Engineer Regiment (Airfields) | |
| Anguila: Op Sheepskin | Mar to Sept 71 | | |
| | Oman: Op Tenable (3 Troop): looking for sites to drill for water Cyprus: (? Troop): working on a mole in a harbour
Belize: (? Troop) | Oct 73 - Jan 74 | | |
| | | | | |
| Northern Ireland Tour: Castledillon | 13 Feb - 12 June 75 | | |
| 51 Field Squadron (Construction) | England: Ripon | Jun 77 - Jan 83 | 38 Engineer Regiment | |
| Northern Ireland Tour: Castledillon | 9 Jun - 11 Oct 78 | | |
| 51 Field Squadron | England: Ripon | Jan 83 - Sept 99 | 38 Engineer Regiment | |
| 51 Parachute Squadron (Air Assault) | England: Ripon | Sept 99 - 2006 | | |
| England: Rock Barracks, Woodbridge | 2006 - | 23 Engineer Regiment (Air Assault) | |
| | | | |
52 Squadron |
| Unit Name | Location | Dates | Higher Formation | Notes |
| | | | |
| 52 Port Training Squadron | England: Marchwood | Apr 48 - 1959 | 17 Port Training Regiment | |
| 52 Inland Water Transport Operating Sqn | England: Marchwood | 1959 - 1961 | 17 Port Training Regiment | |
| 52 Port Operating Squadron | England: Marchwood | 1961 - 1962 | 17 Port Training Regiment | |
| 52 Port Squadron | England: Marchwood | 1962 - Jul 65 | 17 Port Training Regiment | Disbanded. Port duties taken over by RCT |
| 52 Field Squadron (Airfields) | England: Waterbeach | Feb 66 - May 66 | | Formed to take over the role of 5003 Airfield Const Sqn of the RAF |
| England: Waterbeach | May 66 - Mar 67 | HQRE (Airfields) | |
| England: Waterbeach | Mar 67 - Oct 77 | 39 Engineer Regiment (Airfields) | |
| Anguila: Op Sheepskin | Aug 70 - Feb 71 | | |
| Northern Ireland Tour: Castledillon | 6 Feb - 12 Jun 74 | | |
| Northern Ireland Tour: UUAC Strike | 2 May - 17 May 77 | | |
| 52 Field Squadron (Construction) | England: Swinton Bks, Perham Down | Oct 77 - Apr 89 | 22 Engineer Regiment | |
| Germany: RAF Bruggen | Apr 89 - 30 May 92 | | Disbanded |
| 52 Armoured Engineer Squadron | England: Swinton Bks, Perham Down | c2007 | 22 Engineer Regiment | |
| | | | |
| | | | |
53 Squadron |
| Unit Name | Location | Dates | Higher Formation | Notes |
| | | | |
| Port Operating Squadron | Egypt | 1948 - Apr 55 | | Formed as a Port Op Sqn by amalgamation of the Inspectorate Sec, 974 IWT Sqn, 1003 Port Op Sqn and 1013 Port Maint Sqn: Disbanded Apr 1955 |
| | | | |
| 53 Railway (Depot) Squadron | England: Longmoor | May 55 - 1959 | 16 Railway Training Regiment | Formed by re-titling 83 Rly (Depot) Sqn; 1959 retitled Railway (Depot) Squadron |
| Port Maintenance Squadron | England: Marchwood | 1959 - 1961 | 17 Port Training Regiment | |
| 53 Port Operating Squadron | England: Marchwood | 1961 - 1962 | 17 Port Training Regiment | |
| 53 Port Squadron | England: Marchwood | 1962 - July 65 | 17 Port Training Regiment | Disbanded. Port duties taken over by RCT |
| 53 Field Squadron (Airfields) | England: Ripon | July 65 - May 66 | 38 Engineer Regiment | Formed |
| England: Waterbeach | May 66 - Mar 68 | HQRE (Airfields) - 39 Engineer Regiment (Airfields) | |
| Virgin Islands: Beef Island | Mar 68 - May 69 | | To construct an airfield |
| England: Waterbeach, near Cambridge | May 69 - Jul 70 | 39 Engineer Regiment (Airfields) | |
| Persian Gulf | Jul 70 - Apr 71 | | |
| Northern Ireland Tour: Long Kesh | 30 Nov 71 - 14 Mar 72 | | to extend Long Kesh camp |
| Northern Ireland Tour: Castledillon | 10 Feb - 14 Jun 77 | | |
| 53 Field Squadron (Construction) | England: Waterbeach, near Cambridge | Aug 77 - | 39 Engineer Regiment | |
| Persian Gulf: Gulf War | Sep 90 - Mar 91 | | |
| 53 Field Squadron | England: Waterbeach, near Cambridge | 2007 - | 25 Engineer Regiment | |
| | | | |
| | | | |
54 Squadron |
| Unit Name | Location | Dates | Higher Formation | Notes |
| | | | |
| 54 Field Squadron | Hong Kong: | Jan 50 - May 58 | 24 Field Engineer Regiment | Formed by re-titling 25 Fd Sqn |
| 54 Independent Field Squadron | Hong Kong | May 58 - Oct 62 | Independent | |
| 54 Corps Field Park Squadron | Hong Kong | Oct 62 - Dec 62 | | Absorbed 410 Indep Plan Tp to form 54 Corps Fd Pk Sqn |
| Borneo: Brunei and Kota Belud | Dec 62 - Jul 63 | | |
| Singapore | Jul 63 - Dec 67 | | |
| 54 (FARELF) Support Squadron | Singapore | Dec 67 - Jan 68 | | |
| Thailand: Op Post Crown | Jan 68 - Apr 68 | | |
| Singapore | Apr 68 - Jun 71 | | Oct 1970 absorbed FARELF Engr Pk: Jun 1971 disbanded |
| 54 (Hong Kong) Support Squadron | Hong Kong: Shamshuipo Camp | Jul 71 - Dec 75 | | Hong Kong Sp Sqn re-titled 54 (Hong Kong) Sp Sqn: Dec 1975 disbanded |
| 54 Junior Leaders Squadron | England: Old Park Bks, Dover | Jan 76 - 1982 | Junior Leaders Regiment | A Sqn of Junior Leaders Regt re-titled 54 Junior Leaders Sqn |
| 54 Training Squadron | England: Old Park Bks, Dover | 1982 - 1991 | Junior Leaders Regiment | Disbanded |
| 54 Commando Headquarters and Support Squadron | England: Chivenor, North Devon | c2008 | 24 Commando Engineer Regiment |
| | | | |
| | | | |
55 Squadron |
| Unit Name | Location | Dates | Higher Formation | Notes |
| | | | |
| 55 Field Company | ?? | Feb 46 - Sept 46 | 5 Division Engrs | Reformed |
| Trieste | Sept 46 - Jan 47 | 5 Division Engrs | |
| 55 Field Squadron | Trieste | Jan 47 - Jun 47 | 1 Armoured Division Engrs | Redes as Fld Sqn |
| Palestine | Jun 47 - Oct 47 | 1 Armoured Division Engrs | 1 Armd Div Engrs renamed HQ East African Engrs |
| Kenya | Oct 47 - Nov 47 | HQ East African Engrs | HQ East African Engrs renamed 34 Army Engr Regt |
| Kenya | Nov 47 - Jun 49 | 34 Army Engineer Regiment | Regt and Sqn disbanded. |
| England: Perham Down | Jan 50 - Aug 50 | 32 Assault Engr Regiment | Formed by renumbering 39 Fld Sqn |
| England: Perham Down | Aug 50 - Nov 50 | 32 Assault Engr Regiment | Redes as an Indep Fld Sqn |
| 55 Independent Field Squadron | Korea | Nov 50 - June 51 | Indep with 29 Inf Bde | |
| 55 Field Squadron | Korea | June 51 - Apr 55 | 28 Field Engineer Regiment | |
| 55 Independent Field Squadron | Korea | Apr 55 - Jun 56 | Independent? | |
| 55 Field Squadron | Christmas Island | Jun 56 - Jun 57 | 28 Field Engineer Regiment | |
| England: Devizes | Jun 57 - Jul 57 | 28 Field Engineer Regiment | Regt disbanded and Sqn reduced to a Cadre which moved to Cove |
| 55 Training Squadron | England: Cove | Jul 57 - Jun 62 | 4 Training Regiment | Re-formed as 55 Trg Sqn by re-titling a Trg Sqn |
| England: Cove | Jun 62 - Jul 77 | 1 Training Regiment | Amalgamated with D Trg Sqn |
| England: Cove | Jul 77 - Sept 79 | 3 Training Regiment | |
| England: Gibraltar Barracks, Camberly | Sept 79 - | 3 Training Regiment | |
| | | | |
| | | | |
56 Squadron |
| Unit Name | Location | Dates | Higher Formation | Notes |
| | | | |
| 56 Field Company | Egypt | Jan 47 - June 47 | 1 Armoured Division Engrs | 58 Fld Coy redes 58 Fld Sqn |
| 56 Field Squadron | Palestine | Jun 47 - Oct 47 | 1 Armoured Division Engrs | 1 Armd Div Engrs renamed HQ East African Engrs |
| Kenya | Oct 47 - Nov 47 | HQ East African Engrs | HQ East African Engrs renamed 34 Army Engr Regt |
| Kenya | Nov 47 - Jun 49 | 34 Army Engineer Regiment | Regt and Sqn disbanded. |
| Hong Kong: Gordon Hard Camp, New Territories | Jan 50 - May 58 | 24 Field Engineer Regiment | Formed by retitling 37 Fld Sqn |
| England: Barton Stacey | May 58 - June 58 | 24 Field Engineer Regiment | |
| 56 (MT) Squadron | England: Aldershot | Jun 58 - Jun 62 | 4 Training Regiment | Reduced to cadre at Aldershot combined with B Sqn 4 Trg Regt to form 56 (MT) Sqn |
| England: Aldershot | Jun 62 - Jul 63 | 1 Training Regiment | Absorbed MT element of 55 Sqn and joined 1 Trg Regt |
| England: Crookham | Jul 63 - Jan 68 | 1 Training Regiment | |
| England: Crookham | Jan 68 - July 77 | 3 Training Regiment | |
| England: Crookham | Jul 77 - Sept 79 | 1 Training Regiment | |
| England: Gibraltar Barracks, Camberly | Sept 79 - | 1 Training Regiment | |
| 56 Commando Field Squadron | England: Chivenor, North Devon | c2008 | 24 Commando Engineer Regiment |
| | | | |
| | | | |
57 Squadron |
| Unit Name | Location | Dates | Higher Formation | Notes |
| | | | |
| 57 Engineer Squadron | England: Maidstone | Jan 49 - 1950 | 36 Army Engineer Regiment | Formed by redes of 557 Army Tps Sqn |
| 57 Field Squadron | England: Maidstone | 1950 - Jan 51 | 36 Army Engineer Regiment | |
| England: Ripon | Jan 51 - Oct 55 | 36 Army Engineer Regiment | |
| Germany: Osnabruck | Oct 55 - Sept 58 | 36 Corps Engineer Regiment | |
| Middle East: Port Said | 1956 - ?? | 36 Corps Engineer Regiment | |
| England: Maidstone | Sept 58 - Dec 58 | 36 Corps Engineer Regiment | |
| Christmas Island | Dec 58 - Dec 59 | 36 Corps Engineer Regiment | Returned to Maidstone and disbanded. |
| 57 Training Squadron | England: Cove | Feb 60 - Jan 68 | 1 Training Regiment | C Trg Sqn retirled 57 Trg Sqn. |
| England: Cove | Jan 68 - Sept 79 | 3 Training Regiment | |
| England: Gibraltar Barracks, Camberly | Sept 79 - | 3 Training Regiment | |
| | | | |
| | | | |
58 Squadron |
| Unit Name | Location | Dates | Higher Formation | Notes |
| | | | |
| 58 Engineer Squadron | England: Maidstone | Jan 50 - 1950 | 36 Army Engineer Regiment | Formed by renumbering 61 Sqn |
| 58 Field Squadron | England: Maidstone | 1950 - Jan 51 | 36 Army Engineer Regiment | |
| England: Ripon | Jan 51 - Mar 54 | 36 Army Engineer Regiment | Renumbered 20 Squadron |
| 58 SME Squadron | England: Chatham | Jan 62 - Jul 62 | Depot Regiment | |
| 58 RSME Squadron | England: Chatham | Jul 62 - Aug 73 | Depot Regiment | Disbanded |
| 58 EOD Squadron | England: Chattenden | Aug 83 - | 33 Engineer Regiment (EOD) | Reformed |
| 58 Field Squadron (EOD) | England: Carver Barracks, Wimbish | c2008 | 33 Engineer Regiment (EOD) | |
| | | | |
| | | | |
59 Squadron |
| Unit Name | Location | Dates | Higher Formation | Notes |
| | | | |
| 59 Field Squadron | England: Perham Down | Jan 50 - 1954 | 32 Assault Engineer Regiment | Formed by renumbering 44 Fld Sqn. |
| 59 Airfield Construction Squadron | England: Perham Down | 1954 - Aug 56 | | |
| England: Brompton Bks, Chatham | Aug 56 - Nov 57 | SME Chatham | |
| England: Ripon | Nov 57 - Jan 58 | 38 Corps Engineer Regiment | |
| Christmas Island | Jan 58 - 1958 | 38 Corps Engineer Regiment | |
| 59 Field Squadron | Christmas Island | 1958 - Dec 58 | 39 Corps Engineer Regiment | |
| England: Brompton Bks, Chatham | Dec 58 - Aug 60 | SME Chatham | Feb 1959 Absorbed 66 Squadron |
| Cameroons | Aug 60 - Jun 61 | | |
| England: Brompton Bks, Chatham | Jun 61 - Jan 62 | SME Chatham | |
| 59 SME Squadron | England: Brompton Bks, Chatham | 1 Jan 62 - Jul 62 | SME Chatham | Rundown to a cadre and amalgamated with B Sqn Depot Regt to form 59 SME Sqn |
| 59 RSME Squadron | England: Brompton Bks, Chatham | Jul 62 - 15 Dec 62 | RSME Chatham | Retitled 36 RSME Sqn |
| 59 Field Squadron | England: Maidstone | Apr 63 - May 63 | 36 Corps Engineer Regiment | Reformed |
| England: Shorncliffe | May 63 - Jan 64 | 36 Corps Engineer Regiment | |
| Thailand: Op Crown (Airfield Construction) | Jan 64 - Dec 65 | Indep? | Sqn base in Singapore |
| Singapore | Dec 65 - May 66 | Indep? | |
| Thailand: Op Crown (Airfield Construction) | May 66 - Oct 66 | Indep? | Sqn base in Singapore |
| Singapore: Cloutman Lines | Oct 66 - Jan 67 | Indep? | |
| Singapore: Cloutman Lines | Jan 67 - 1 Apr 71 | 3 Commando Brigade | |
| 59 Independent Commando Squadron | Singapore: Cloutman Lines | 1 Apr 71 - May 71 | 3 Commando Brigade | |
| England: Stonehouse Barracks, Plymouth | May 71 - 1971 | | Oct 1971 Condor Troop moved permanently to Arbroath in sp 45 Cdo |
| England: Crownhill Fort , Plymouth | 1971 - 1995 | | |
| Northern Ireland Tour: Antrim | 24 Jul - 21 Nov 72 | | |
| Northern Ireland Tour: Antrim | 20 Mar - 24 Jul 74 | | less 2 Tp and Condor Tp |
| Northern Ireland Tour: Castledillon | 12 Feb - 11 Jun 76 | | |
| Northern Ireland Tour: Castledillon | 10 Jun - 23 Oct 80 | | |
| Falkland Islands | 5 Apr - 11 Jul 82 | | |
| Northern Iraq: Op Haven | 1991 | | |
| England: RMB Chivenor | 1995 - 1 Apr 08 | | |
| Northern Ireland Tour: | 1998 | | |
| 59 Commando Field Squadron | England: Chivenor, North Devon | 1 Apr 08 - | 24 Commando Engineer Regiment |