| THE Rama UK Investment Ltd | Other services | 2017 |
| THE Red Munch Box Ltd | Hospitality | 2025 |
| THE Redeemed Christian Church of GOD House of Favour | Education | 2015 |
| THE Residence RTM Company Limited | Households | 2011 |
| THE Ridge Bolsover Road Limited | Households | 2013 |
| THE Ring Marketing Group Limited | Other services | 2006 |
| THE Ringles Cross PUB Limited | Hospitality | 2026 |
| THE Roadhouse Diner Limited | Hospitality | 2026 |
| THE Rose Cottage (Alciston) Limited | Hospitality | 2015 |
| THE Rose Cottage Holiday Letting Alciston Limited | Real estate | 2018 |
| THE Rosy LEE Limited | Hospitality | 2024 |
| THE Royal Eastbourne Golf Club Limited | Arts & recreation | 1913 |
| THE Royal Hippodrome Eastbourne CIC | Arts & recreation | 2014 |
| THE Royal Indian Hailsham Limited | Extraterritorial | 2024 |
| THE Royal Indian Limited | Extraterritorial | 2024 |
| THE Rude Mechanical Theatre Company | Arts & recreation | 1997 |
| THE RUM Infusionist Ltd. | Manufacturing | 2023 |
| THE Salient Decorations & Interiors Services Ltd | Construction | 2024 |
| THE Salt Merchant Ltd | Agriculture & fishing | 2017 |
| THE Sanctuary, Eastbourne CIC | Other services | 2022 |
| THE Secret Wardrobe Ltd | Wholesale & retail | 2013 |
| THE Sharckhitect Ltd | Professional & scientific | 2024 |
| THE Shekinah Legacy | Other services | 2010 |
| THE Shoe Lounge Limited | Administrative & support | 2004 |
| THE Sleepy Teepee Sleepovers Ltd | Other services | 2023 |
| THE Society for Irish Church Missions | Other services | 1925 |
| THE Solicitors' Agency Services Limited | Professional & scientific | 2001 |
| THE Southfield Trust | Education | 2016 |
| THE Spot EBN Ltd | Other services | 2024 |
| THE Sprint House Ltd | Manufacturing | 2022 |
| THE Steve Hewlett Show Ltd | Arts & recreation | 2011 |
| THE Stop Eastbourne Ltd | Hospitality | 2024 |
| THE Straight Tooth Company Ltd | Health & social care | 2023 |
| THE Sussex Association for Spina Bifida and Hydrocephalus | Education | 2017 |
| THE Sussex Fish MAN Ltd | Wholesale & retail | 2025 |
| THE Sussex Shala Ltd | Hospitality | 2023 |
| THE SW3 Group Ltd | Professional & scientific | 2025 |
| THE Swansborough Family Partnership Limited | Professional & scientific | 2008 |
| THE Tally-Ho Steakhouse Limited | Hospitality | 2018 |
| THE Teethkeeper Ltd | Wholesale & retail | 2023 |
| THE Temple Club Limited | Hospitality | 2019 |
| THE Tennis Cafe Ltd | Arts & recreation | 2025 |
| THE Thorpe (Eastbourne) Limited | Households | 1991 |
| THE Tidy LOT Ltd | Administrative & support | 2026 |
| THE Trees Community Association Limited | Other services | 2011 |
| THE UBS Loft Ltd | Wholesale & retail | 2025 |
| THE Ultimate Reflection Ltd | Administrative & support | 2025 |
| THE Under Ground Theatre (Eastbourne) CIC | Arts & recreation | 2024 |
| THE Vampire's DEN Limited | Wholesale & retail | 2022 |
| THE Vapers Shop (East Grinstead) Ltd | Wholesale & retail | 2015 |
| THE Vapour Escape Dover Ltd | Administrative & support | 2019 |
| THE Vapour Escape Limited | Wholesale & retail | 2015 |
| THE Vapour Escape Two Ltd | Wholesale & retail | 2018 |
| THE Vapour Room (Eastbourne) Limited | Wholesale & retail | 2013 |
| THE Vapour Trail (Bexhill) Limited | Wholesale & retail | 2018 |
| THE Vapour Trail (Burgess Hill) Ltd | Wholesale & retail | 2023 |
| THE Vapour Trail (Eastbourne) Limited | Wholesale & retail | 2012 |
| THE Vapour Trail (Hastings Town) Limited | Wholesale & retail | 2018 |
| THE Vapour Trail (Hastings) Limited | Wholesale & retail | 2012 |
| THE Vapour Trail (Haywards Heath) Limited | Wholesale & retail | 2016 |
| THE Vapour Trail (Old Town) Limited | Wholesale & retail | 2021 |
| THE Vapour Trail (Peacehaven) Limited | Wholesale & retail | 2018 |
| THE Vapour Trail (Seaford) Limited | Wholesale & retail | 2018 |
| THE Vapour Trail (Silverhill) Limited | Wholesale & retail | 2018 |
| THE Vapour Trail (Tunbridge Wells) Limited | Wholesale & retail | 2013 |
| THE Vapour Trail (Uckfield) Limited | Wholesale & retail | 2014 |
| THE Vapour Trail (Wholesale) Limited | Wholesale & retail | 2013 |
| THE Vapour Trail Two Limited | Wholesale & retail | 2012 |
| THE VAT Firm Ltd | Administrative & support | 2018 |
| THE Venue Business (UK) Limited | Administrative & support | 2014 |
| THE Vineries (Eastbourne) Management Company Limited | Households | 1989 |
| THE Visa Office Limited | Other services | 2000 |
| THE Vitality Vault Ltd | Administrative & support | 2008 |
| THE Wealden Advertiser Limited | Information & communication | 1989 |
| THE Wellington Clinic (Reigate) Limited | Health & social care | 2023 |
| THE Wellington Clinic Limited | Health & social care | 2013 |
| THE Wellness Clinic (Wokingham) Limited | Health & social care | 2023 |
| THE White Clinic Limited | Health & social care | 2020 |
| THE Wick & Ware Ltd | Wholesale & retail | 2026 |
| THE Willow Health Group Limited | Wholesale & retail | 2022 |
| THE Winchester House Apartments Management Company Limited | Households | 1998 |
| The-Vyne Limited | Wholesale & retail | 2016 |
| The-Vyne Properties Limited | Real estate | 2025 |
| Theatre From Annabelle Limited | Administrative & support | 2024 |
| Thecater.Co.Uk Limited | Manufacturing | 2019 |
| Thefloorco Limited | Extraterritorial | 2011 |
| Thegalleryexperiences Ltd | Professional & scientific | 2026 |
| Thelondoner Limited | Wholesale & retail | 2019 |
| Theodore Holdings Limited | Financial services | 2017 |
| Theodore Properties Limited | Other services | 2015 |
| Theora Ltd | Financial services | 2013 |
| Therapypal Ltd | Health & social care | 2023 |
| Thermic Edge Ceramics and Graphite Ltd | Manufacturing | 2019 |
| Thermogrout Ltd | Construction | 2022 |
| Thermotec (UK) Ltd | Construction | 2014 |
| Thesiger Management Limited | Real estate | 2002 |
| Theunloved Ltd | Wholesale & retail | 2021 |
| Theworkingpeoplestheatre Ltd | Arts & recreation | 2026 |
| THI RA Medical Ltd. | Health & social care | 2021 |
| Thickbroom Limited | Professional & scientific | 2001 |