| THE Angry Microwave Limited | Professional & scientific | 2020 |
| THE Archer PUB Ltd | Hospitality | 2020 |
| THE Art Club Dover Ltd | Hospitality | 2022 |
| THE Barn TYE Close Management Company Limited | Households | 1989 |
| THE Bay Trust | Administrative & support | 1993 |
| THE Belgian Red Devils Ltd | Arts & recreation | 2014 |
| THE Booking Hall CIC | Arts & recreation | 2024 |
| THE Bored Candy City Ltd | Information & communication | 2023 |
| THE Brill UK LLP | | 2008 |
| THE Bubbles Group Limited | Wholesale & retail | 2016 |
| THE Castle Osteopathic Clinic Limited | Health & social care | 2005 |
| THE Champions Club U.K. Limited | Other services | 2025 |
| THE Cider Works Limited | Hospitality | 2017 |
| THE Crabble Corn Mill Trust | Arts & recreation | 1987 |
| THE Cradle Limited | Wholesale & retail | 2010 |
| THE DE Havilland Aircraft Company Limited | Extraterritorial | 2022 |
| THE Dog POD Limited | Other services | 2020 |
| THE Dover Counselling Centre | Health & social care | 1989 |
| THE Dover Film Festival Society | Information & communication | 2013 |
| THE Escape Goat Limited | Arts & recreation | 2022 |
| THE Floor Store (Kent) Limited | Wholesale & retail | 2015 |
| THE Florin Partnership Limited | Professional & scientific | 2012 |
| THE Garden of England Kitchens Limited | Construction | 2023 |
| THE Gina Frias Couture Collection Limited | Wholesale & retail | 2025 |
| THE Goalie Guide Ltd | Education | 2020 |
| THE Godwyne Court Management Company Limited | Households | 1987 |
| THE Gold Shop (Kent) Limited | Wholesale & retail | 2014 |
| THE Green Woodstove Company Ltd | Manufacturing | 2013 |
| THE Haven Spa & Sports Therapy Limited | Arts & recreation | 2026 |
| THE Holistic Home Mobile Spa Ltd | Other services | 2019 |
| THE Laser Rooms Limited | Wholesale & retail | 2020 |
| THE Maritime & Aviation Group (International) Limited | Administrative & support | 2007 |
| THE Maritime Skills Academy Limited | Education | 2012 |
| THE Master Club Ltd | Wholesale & retail | 2020 |
| THE Multiple Intelligence Hub C.I.C. | Education | 2018 |
| THE Old Vicarage Rose Garden Limited | Hospitality | 2025 |
| THE Park Dover Ltd | Hospitality | 2018 |
| THE Pinetum Ltd | Arts & recreation | 2025 |
| THE Plough Inn Holdings Limited | Real estate | 2019 |
| THE Red Lion (Charlton) Limited | Hospitality | 2019 |
| THE Scroundrels PLC | Extraterritorial | 2022 |
| THE Skin Care Company Investment Limited | Other services | 2015 |
| THE Smash Brothers Burgers Ltd | Hospitality | 2023 |
| THE Smoked Yolk Ltd | Hospitality | 2026 |
| THE St.Bartholomew's Close Management Company Limited | Households | 2000 |
| THE Tourist Trophy Garage Limited | Manufacturing | 2007 |
| THE West India Company Limited | Extraterritorial | 2015 |
| THE White Cliffs Enterprise Centre Limited | Administrative & support | 2011 |
| Theatre of WAR Ltd | Construction | 2025 |
| Think Adventures Media Ltd | Information & communication | 2024 |
| Think Visually Studios Limited | Extraterritorial | 2010 |
| Thomas and Partners Estate Agents (Folkestone) Limited | Real estate | 2016 |
| Thompson Spare Limited | Real estate | 2017 |
| Thompson Trade Development Company Limited | Transport & logistics | 2004 |
| Thompson Transport Limited | Administrative & support | 2017 |
| Thorpe Building (S.E.) Ltd | Construction | 2016 |
| Thorpe Roofing & Property Maintenance Ltd | Construction | 2024 |
| Thrale Tech Ltd | Manufacturing | 2025 |
| Three Kings Yard Management Company Limited | Households | 1998 |
| Threshold (GB) Limited | Real estate | 2006 |
| Tideway Developments Limited | Construction | 2021 |
| Tina Leggett Ltd | Professional & scientific | 2000 |
| Tipping & Webb Limited | Financial services | 2015 |
| Tipping Limited | Professional & scientific | 2013 |
| Tircis Ltd | Extraterritorial | 2025 |
| Tisya Oriental Ltd | Wholesale & retail | 2025 |
| Tithebarn Property Company Limited | Real estate | 1962 |
| Titon Bond Ltd | Wholesale & retail | 2026 |
| TJS Construction Limited | Construction | 2019 |
| TKM Training Ltd | Education | 2025 |
| TKS Freight Forwarding Limited | Transport & logistics | 2023 |
| TMH Design Limited | Construction | 2018 |
| Toddlerville Ltd | Health & social care | 2023 |
| Togetherpoint Ltd | Construction | 2025 |
| TOM Clothes Depop Ltd | Wholesale & retail | 2025 |
| TOM Voller Ltd | Construction | 2022 |
| Tonka's Plastering & Decorating Ltd | Construction | 2017 |
| Top Line Cars and Travel Limited | Transport & logistics | 2022 |
| Top Nails & Spa 109 Ltd | Other services | 2024 |
| Topaz Research Limited | Administrative & support | 2010 |
| Topel Limited | Wholesale & retail | 2023 |
| Tops Pizza Dover Limited | Hospitality | 2024 |
| Tortoise Protection Group | Administrative & support | 2018 |
| Total Fitness Fanatics Limited | Manufacturing | 2021 |
| Tottenham & Bennett Limited | Professional & scientific | 2011 |
| Touchango K9 Ltd | Wholesale & retail | 2017 |
| Touchango Toys Ltd | Manufacturing | 2019 |
| Toundra Consult Ltd | Extraterritorial | 2024 |
| Tovey R Services Ltd | Construction | 2018 |
| Tower Equestrian Ltd | Agriculture & fishing | 2022 |
| Town Store Ltd | Wholesale & retail | 2024 |
| Townsend Marine Engineering Ltd | Manufacturing | 2025 |
| Toyo Ltd | Other services | 2025 |
| Trade Mark Accounting Limited | Professional & scientific | 2010 |
| Trading Invest Ltd | Extraterritorial | 2011 |
| Traffic Sign Solutions Inc. | | 2013 |
| Training Management UK Center Ltd | Information & communication | 2024 |
| Trans AED Ltd | Transport & logistics | 2020 |
| Trans-Stor Logistics Limited | Administrative & support | 2007 |
| Transport - Express Limited | Transport & logistics | 2010 |