Ulster Rifles
| Dates | Locations | Higher Formation/Remarks |
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| . | 1st Battalion, London Irish Rifles, The Royal Ulster Rifles | . |
| 1947.01.01 | Reconstituted in T.A. with HQ and coys at Duke of York's HQ, Chelsea | . |
| . | A Company | . |
| . | B Company | . |
| . | C Company | . |
| . | D Company | . |
| 1967.04.01 | LIR disbanded and concurrently reconstituted as a single company in TAVR II: | . |
| . | D Company (London Irish Rifles), North Irish Militia at Chelsea, det at Hillington, Mx | . |
| 1972 | North Irish Militia renamed The North Irish Militia (4th (Volunteer) Battalion), The Royal Irish Rangers) | . |
| . | Regiment renamed 4th (Volunteer) Battalion, The Royal Irish Rangers (27th (Inniskilling) 83rd and 87th) (The North Irish Militia): HQ at Portadown | . |
| . | D Company (London Irish Rifles), 4th (V) Battalion, The Royal Irish Rangers (North Irish Militia) | . |
| 1993.04.20 | D Company (London Irish Rifles), The London Regiment | . |
| 1999.05.01 | Moved to Camberwell | . |
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| . | 6th Battalion, The Royal Ulster Rifles | . |
| 1947.01.01 | Re-formed in TA with HQ at Belfast as the infantry for Antrim and Down counties | . |
| . | A Company at Belfast (Victoria Barracks) | . |
| . | B Company at Belfast (Victoria Barracks) | . |
| . | C Company at Ballymena | . |
| . | D Company at Ballymena | . |
| . | S Company at Lisburn | . |
| 1961 | Absorbed Q Battery, 245th (Ulster) LAA Regiment RA | . |
| 1967.04.01 | Disbanded and concurrently reconstituted as: | . |
| . | B Company (Royal Ulster Rifles), North Irish Militia, formed in TAVR II at Newtownabbey, Belfast | . |
| . | 6th (Territorial) Battalion, The Royal Ulster Rifles, formed in TAVR III with HQ at Belfast | . |
| . | A Company at Ballymena | . |
| . | B Company at Lisburn | . |
| . | C Company a Newtonards, successor to 661st (Ulster) Field Regt RA | . |
| 1969.01.01 | TAVR III element reduced to cadre as 6th Battalion, The Royal Ulster Rifles (Royal Irish Rangers) at Lisburn, sponsored by North Irish Militia | . |
| 1971.04.01 | Cadre reconstituted as B (Royal Ulster Rifles) Company, 5th (V) Battalion, The Royal Irish Rangers at Killyleagh | . |
| 1978 | Company at Killyleagh formed pln at Bangor | . |
| 1982 | Company at Killyleagh moved to Newtonards | . |
| . | Companys at Newtonabbey and Newtonards redesignated respectively B Company and A Company, 4th/5th Battalion, The Royal Irish Rangers (V) but Royal Ulster Rifles lineage discontinued | . |
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