| TOM Casson Design Ltd | Professional & scientific | 2025 |
| TOM Fraser Wishart Ltd | Professional & scientific | 2022 |
| TOM Goldsmith Joinery Ltd | Construction | 2016 |
| TOM Gudgeon Ltd | Professional & scientific | 2026 |
| Tomlinson Consulting Limited | Professional & scientific | 2006 |
| Tommar Homes Limited | Real estate | 2026 |
| Tomtom Media Limited | Information & communication | 2019 |
| Tonbridge Cabs Limited | Transport & logistics | 2023 |
| Tonbridge Pizza Ltd | Extraterritorial | 2024 |
| Tonbridge Road Property Management Limited | Real estate | 2017 |
| Tonbridge Roofing Limited | Construction | 2018 |
| Tonbridge Town Sailing Club Limited | Arts & recreation | 2019 |
| Toni's Taxi Service Limited | Transport & logistics | 2008 |
| Tony Draper Ltd | Manufacturing | 2022 |
| Tony Snow Limited | Professional & scientific | 2010 |
| Tools:Uk Limited | Manufacturing | 2025 |
| Top Design Limited | Extraterritorial | 2009 |
| Top Hope Trading Limited | Wholesale & retail | 2025 |
| Top School Applications Ltd | Education | 2023 |
| Topgun Crypto Ltd | Education | 2021 |
| Topstaff Limited | Professional & scientific | 2014 |
| Tordion Ltd | Information & communication | 2012 |
| Torham Developments Limited | Construction | 2017 |
| Torham Estates Limited | Real estate | 2017 |
| Torham Ltd | Construction | 2012 |
| Torpedo Juice Limited | Information & communication | 2005 |
| Torrington Lyle Limited | Households | 2003 |
| Torweal Two Ltd | Financial services | 2021 |
| Total Broker Solutions Limited | Financial services | 2003 |
| Total Control (EOT) Limited | Administrative & support | 2020 |
| Total Control Energy Limited | Extraterritorial | 2010 |
| Total Control Group Limited | Financial services | 2013 |
| Total Control Maintenance Limited | Administrative & support | 1989 |
| Total Control Projects Limited | Extraterritorial | 2010 |
| Total Control Services Limited | Construction | 1987 |
| Total Licensing Limited | Information & communication | 2003 |
| Totilas QP Services Limited | Professional & scientific | 2023 |
| Tours International Limited | Administrative & support | 1987 |
| Tower Bay Consulting Ltd | Professional & scientific | 2024 |
| Town Crier Magazines Limited | Information & communication | 2011 |
| Town House Dental Practice Limited | Health & social care | 2019 |
| Town Taxi Tunbridge Wells Limited | Transport & logistics | 2025 |
| Townhouse (Tunbridge Wells) Freehold Limited | Real estate | 2023 |
| Townhouse (Tunbridge Wells) Limited | Administrative & support | 2014 |
| TPE Electrical Services Limited | Administrative & support | 2017 |
| Tppr Limited | Professional & scientific | 1994 |
| TQA Limited | Education | 2014 |
| Tradebox Holdings Limited | Financial services | 2017 |
| Tradebox Limited | Information & communication | 2003 |
| Trades Union Congress for England | Other services | 2015 |
| Tradewave Ventures Limited | Wholesale & retail | 2024 |
| Tradewind Development Limited | Administrative & support | 2015 |
| Trafalgar House (Tunbridge Wells) Limited | Real estate | 2008 |
| Trafford Innovations Limited | Manufacturing | 2014 |
| Trailer Hire Solutions Ltd | Administrative & support | 2024 |
| Tranquil Homes (Mantle) Ltd | Construction | 2020 |
| Tranquil Homes Limited | Construction | 1999 |
| Tranquil View (Pembury) Limited | Households | 2020 |
| TRANS4MINE Ltd | Professional & scientific | 2023 |
| Transcool Systems Limited | Information & communication | 2006 |
| Transfer 2000 EOT Trustee Ltd | Professional & scientific | 2023 |
| Transfer 2000 Limited | Transport & logistics | 1996 |
| Transflo Instruments Limited | Manufacturing | 1977 |
| Transform Network Academy Ltd | Other services | 2026 |
| Transmission Repair Shop Ltd | Wholesale & retail | 2025 |
| Transoms Services Ltd | Construction | 2017 |
| Transparent Data Limited | Information & communication | 2021 |
| Transport Justice Ltd | Information & communication | 2025 |
| Travel Guides Limited | Information & communication | 2024 |
| Traversing Travel Ltd | Administrative & support | 2025 |
| Tredstone Limited | Construction | 2003 |
| Treehouse Music Limited | Information & communication | 2021 |
| Treework (Tunbridge Wells) Limited | Agriculture & fishing | 2003 |
| Trench Investments Limited | Real estate | 1963 |
| Trend GB Limited | Other services | 2009 |
| Trentis Capital Ltd | Financial services | 2025 |
| Tretower RTM Company Limited | Households | 2018 |
| Trevana Global Ltd | Wholesale & retail | 2025 |
| Trevor Mottram Ltd | Wholesale & retail | 1995 |
| Triangle Investments and Development Limited | Real estate | 2007 |
| Tribal Interiors Limited | Wholesale & retail | 2004 |
| Tribe Digital Media CIC | Manufacturing | 2024 |
| Tribrach Engineering Solutions Limited | Professional & scientific | 2016 |
| Trice Studios Ltd | Professional & scientific | 2024 |
| Trichrome Healthcare Limited | Information & communication | 2016 |
| TRICK27 Studios Limited | Wholesale & retail | 2017 |
| Trident Geophysical Limited | Professional & scientific | 1999 |
| Trifin Partners Ltd | Information & communication | 2010 |
| Triggerfish Properties Limited | Real estate | 2025 |
| Triggerfish Ventures Limited | Professional & scientific | 2025 |
| Trine Select Limited | Wholesale & retail | 2025 |
| Trinity Arts Enterprises Limited | Hospitality | 1984 |
| Trinity Mews Residents Company Limited | Households | 2005 |
| Trinity Theatre and Arts Centre Limited | Arts & recreation | 1996 |
| Triple Time Music Ltd | Education | 2023 |
| Tririver Digital Ltd | Information & communication | 2026 |
| Troika International Limited | Information & communication | 2000 |
| Tropical Growers' Association Limited(The) | Other services | 1912 |
| TRP Repairs Ltd | Wholesale & retail | 2025 |
| True Amor Skincare Ltd | Wholesale & retail | 2023 |