| 105 Roundhill Crescent Brighton Limited | Households | 1987 |
| 14 ST. Matthews Gardens Management Limited | Households | 1996 |
| 17 ST. James Avenue Brighton Limited | Households | 1994 |
| 179 ELM Grove (Brighton) Limited | Households | 1995 |
| 2 Lewes Crescent Brighton Limited | Real estate | 1983 |
| 37 Arlington Road Management Company Limited | Households | 1961 |
| 48 Eversfield Place Management Company Limited | Households | 1988 |
| 50 Osborne Villas Management Limited | Households | 2005 |
| A.J.H. Surveying Services Limited | Professional & scientific | 1999 |
| Ace Nonconventional Energy Limited | | 1986 |
| Adams of RYE Limited | Manufacturing | 1952 |
| Anaz Restaurant Limited | Hospitality | 2002 |
| Applied Engine Technology Limited | Professional & scientific | 1998 |
| Argus Applications (Video) Limited | | 1980 |
| Arrow Marine Limited | Professional & scientific | 1983 |
| Astersound Limited | Real estate | 1999 |
| Aura Surfaces Limited | Wholesale & retail | 2024 |
| B.Cheal & Sons Limited | | 1953 |
| Bastionworth Limited | | 1977 |
| Beacon Nominees Limited | Administrative & support | 2004 |
| Beeches Retirement Hotel Limited | Health & social care | 2005 |
| Bexhill Conservative Club Limited(The) | Hospitality | 1906 |
| Bluebell Extension Railway Limited | Transport & logistics | 1975 |
| Bluebell Railway Operating Limited | Transport & logistics | 1960 |
| Bluebell Railway PLC | Transport & logistics | 1985 |
| Brett Wright Landscapes Limited | Administrative & support | 2003 |
| Brighton Bedding Centre Limited(The) | Manufacturing | 1986 |
| Brighton Systems Limited | Manufacturing | 1991 |
| Broadcast Installation Associates Limited | Professional & scientific | 1989 |
| Brocon Properties Limited | Real estate | 2022 |
| Brookside Holiday Camp Limited | Hospitality | 1955 |
| Bryan C Thomas Limited | Other services | 1966 |
| Buss Interiors Limited | Construction | 2004 |
| Byrom Reagents Limited | | 1953 |
| C.Brewer & Sons Limited | Wholesale & retail | 1925 |
| C.W.A. Ticehurst Limited | Real estate | 1957 |
| Caffyns Public Limited Company | Wholesale & retail | 1909 |
| Caldbec Senlac Residents Co. Limited | Households | 1968 |
| Candy Communications Ltd | Professional & scientific | 2023 |
| Carvills Furnishings Limited | Wholesale & retail | 1949 |
| Cee-Jay Tiling Co. Limited | | 1977 |
| Chichester Freemason's Hall Company Limited | Other services | 1957 |
| Clarendon Trust Limited | Other services | 1998 |
| Clive's Tyre & Exhaust Company Limited | Wholesale & retail | 1997 |
| CML Southampton LP | | 2001 |
| Coastring Limited | Households | 1990 |
| Cobham Towers (Bexhill) Residents Company Limited | Households | 1974 |
| Colour Store Limited | Transport & logistics | 1965 |
| Colourfast (Kent) Limited | | 1988 |
| Columbine Limited | | 1986 |
| Connaught Building Contractors Limited | Construction | 1997 |
| Coralgate (Southern) Limited | Real estate | 2003 |
| Court Farms (Billingshurst) Limited | Agriculture & fishing | 1956 |
| Courtneys the DRY Cleaners Limited | Arts & recreation | 1882 |
| Crowborough Beacon Golf Club.Limited(The) | Arts & recreation | 1896 |
| D. a. Fillery (Insurance Services) Southern Limited | | 1985 |
| Darcrest Contractors Limited | | 1968 |
| Data Zenith Limited | Professional & scientific | 1990 |
| David Edwards (Cars) Limited | | 1962 |
| Dimensionize Ltd | Wholesale & retail | 2004 |
| Dragon and Peacock Ltd | Hospitality | 2018 |
| Eastbourne Fishermen's and Boatmen's Protection Society and Club Limited | Hospitality | 1965 |
| Eastbourne School of English Limited | Education | 1966 |
| Eastbourne Speedway Limited | Arts & recreation | 1937 |
| Eastbourne Tyre Company Limited | Wholesale & retail | 1936 |
| Eclectica Search & Selection Ltd | Other services | 2020 |
| Emerson College Trust Limited(The) | Education | 1967 |
| Firm Security Guards Partnership | | 1998 |
| Flocon Limited | | 1964 |
| Food 2 U Limited | Hospitality | 2003 |
| Frank G.Wickenden Limited | Wholesale & retail | 1966 |
| Frank Richards & Sons (Lewes) Limited | Wholesale & retail | 1943 |
| Free Spirit Travel Limited | Administrative & support | 2002 |
| Free Spirit Yoga Limited | Administrative & support | 1997 |
| G.T. Congreve Limited | | 1953 |
| Gablefield Limited | Households | 1978 |
| Garden Art UK Limited | Wholesale & retail | 2007 |
| GEO. E. Richardson & Sons Limited | Water & waste | 1958 |
| Glyndebourne Productions Limited | Arts & recreation | 1939 |
| Haffenden (Whisky Brokers) Limited | | 1964 |
| HAN (UK) | | 1996 |
| Harvey & SON (Lewes) Limited | Manufacturing | 1928 |
| Hattenholm Investments Limited | Households | 1971 |
| Haverdene Property Company Limited | Wholesale & retail | 1974 |
| Hawks Town Gardens (Maintenance) Limited | Real estate | 1963 |
| HCD Research Limited | Manufacturing | 1961 |
| Heidenhain GB Limited | Wholesale & retail | 1969 |
| Highdown Car Audio and Security Limited | Wholesale & retail | 2007 |
| Hobden & SON (Worthing) Limited | Manufacturing | 1959 |
| Inglis Elite Horses Limited | Wholesale & retail | 2016 |
| Intermodality Solutions Limited | Transport & logistics | 2007 |
| It's ALL About People Limited | Professional & scientific | 2000 |
| J Tillman Flooring Limited | Construction | 2004 |
| J.E. Renwick Limited | Agriculture & fishing | 1964 |
| James Heagerty Limited | Construction | 1968 |
| Jason Brooks Limited | Arts & recreation | 2005 |
| Jgca Limited | Professional & scientific | 2003 |
| Kite & Thomas Limited | Wholesale & retail | 1973 |
| Ladydell Importers Ltd. | Wholesale & retail | 1965 |
| Lewinscourt Maintenance Limited | Households | 1963 |