Royal Sussex Regiment
| Dates | Locations | Higher Formation/Remarks |
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| . | 4th/5th (Cinque Ports) Battalion, The Royal Sussex Regiment | . |
| 1948.09.13 | Reconstituted in T.A. with HQ at Worthing and concurrently amalgamated with duplicate 6th Battalion without change of title (now the sole T.A. infantry in Sussex) | 133 (Kent & Sussex) Infantry Brigade |
| . | A Company at Haywards Heath | . |
| . | B Company at Horsham | . |
| . | C Company at Worthing | . |
| . | D Company at Chichester | . |
| 1967.04.01 | Disbanded and concurrently reconstituted as: | . |
| . | C Company (Cinque Ports), 5th (Volunteer) Battalion, The Queen's Regiment in TAVR II at Hastings | . |
| . | 9th (Territorial) Battalion, The Queen's Regiment (Royal Sussex) in TAVR III with HQ at Eastbourne | . |
| . | A Company at Brighton, from 4th/5th Bn The Royal Sussex Regt, and part of 257 (Sussex Yeomanry) Field Regiment RA | . |
| . | B Company (Royal Engineers) at Eastbourne from 211 and 490 Field Squadrons RE (HQ 44 Division/District RE and 559 Squadron RCT also assisted in formation) | . |
| 1969.04.01 | TAVR III element reduced to cadre as 9th Battalion, The Queen's Regiment (Royal Sussex) at Eastbourne, sponsored by 5th (V) Bn The Queen's Regiment, less some personnel to form pln at Eastbourne in C Company 5th Bn | . |
| 1970.06 | Crawley platoon formed in E Company, 5th (V) Bn, The Queen's Regt from B Company 8th (T) Bn The Queen's Regiment (West Kent) without explicit Sussex affiliation | . |
| 1971.04.01 | Reorganised as: | . |
| . | C Company (Cinque Ports), 5th (Volunteer) Battalion, The Queen's Regiment at Hastings with Pln at Eastbourne | . |
| . | C Company (Royal Sussex), 7th (V) Battalion, The Queen's Regiment, at Crawley with Pln at Horsham, from cadres 8th Bn The Queen's Regiment, and 9th Bn The Queen's Regt, and Pln of E Company 5th Battalion | . |
| . | Battalion HQ (Royal Sussex), 7th (V) Battalion, The Queen's Regiment at Horsham, from cadres 8th Bn The Queen's Regt, and 9th Bn The Queen's Regt | . |
| 1972 | HQ Company (Royal Sussex), 7th (V) Battalion, The Queen's Regiment formed at Horsham by expansion of battalion HQ | . |
| 1973.10.08 | Sussex county company subtitles discontinued (except C (Cinque Ports) Coy) | . |
| 1974 | Horsham Pln C Company [7 Queen's] moved to Haywards Heath | . |
| 1975.04.01 | HQ Coy at Horsham and C Coy at Crawley transferred to 6th/7th Battalion, The Queen's Regiment upon amalgamation of 6th Battalion and 7th Battalion | . |
| 1988.05.16 | B (Somme) Company, 6th/7th Battalion, The Queen's Regiment formed at Brighton (Pln at Worthing), formed from Pln of old D Company in Surrey; HQ Coy at Horsham redesignated as HQ (Alamein) Company; C Company at Crawley and Haywards Heath redesignated as C (Quebec) Company | . |
| 1992.09.09 | Reduced to three companies upon amalgamation of The Queen's Regiment and The Royal Hampshire Regiment: | . |
| . | C (Cinque Ports) Company, 5th (Volunteer) Battalion, The Princess of Wales's Royal Regiment (Queen's and Royal Hampshires) at Hastings, redesignation of C Coy 5 Queen's | . |
| . | HQ (Alamein) Company, 6th/7th (Volunteer) Battalion, The Princess of Wales's Royal Regiment (Queen's and Royal Hampshires) at Horsham with GPMG (SF) at Crawley, amalgamation of HQ Company and C Company, 6/7 Queen's | . |
| . | B (Somme) Company, 6th/7th (Volunteer) Battalion, The Princess of Wales's Royal Regiment (Queen's and Royal Hampshires) at Brighton (Pln at Worthing), redesignation of B Company 6/7 Queen's | . |
| 1999.07.01 | B (Royal Sussex) Company, 3rd (Volunteer) Battalion, The Princess of Wales's Royal Regiment (Queen's and Royal Hampshires) county affiliation revived at Brighton with Pln at Worthing, redesignation of B Coy 6th/7th Battalion (companies at Hastings and Horsham disbanded) | . |
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