| Torela Designz Ltd | Wholesale & retail | 2020 |
| Torqx Limited | Construction | 2023 |
| Torus Construction Ltd | Construction | 2014 |
| Tosing Ltd | Wholesale & retail | 2026 |
| Total Building Solutions (Kent) Ltd | Construction | 2020 |
| Total Flair Ltd | Arts & recreation | 2021 |
| Total Health Solutions (Kent) Ltd | Manufacturing | 2026 |
| Total Home & Motor Solutions Ltd. | Construction | 2011 |
| Total Line Marking Ltd | Construction | 2018 |
| Total Retail Limited | Wholesale & retail | 2003 |
| Total Services (UK) Limited | Construction | 2012 |
| Totg OM 410 Ltd | Hospitality | 2026 |
| Toto Trans Ltd | Wholesale & retail | 2026 |
| Toucan Gaming Ltd | Wholesale & retail | 2022 |
| Touch of Beauty Clinic Ltd | Other services | 2020 |
| Touch of Fortune Ltd | Wholesale & retail | 2025 |
| Tovizi Transport Ltd | Transport & logistics | 2022 |
| Tower Pest Control Ltd | Other services | 2020 |
| Tower Plumbing & Hardware Limited | Wholesale & retail | 2021 |
| Town and Castle Limited | Real estate | 2024 |
| Town and Rural Limited | Financial services | 2020 |
| Toyi Foods Ltd | Manufacturing | 2026 |
| Toyin Catering Services Ltd | Hospitality | 2024 |
| TP CAD Services Ltd | Construction | 2022 |
| TPP Properties Holding Limited | Real estate | 2026 |
| Tprop Ltd | Real estate | 2019 |
| TPS Business Ltd | Hospitality | 2021 |
| TPS Ventures Ltd | Real estate | 2023 |
| TPT Construction & Maintenance Limited | Administrative & support | 2009 |
| TR Executive Ltd | Administrative & support | 2024 |
| Track Images Ltd | Professional & scientific | 2025 |
| Trackit Global Ltd | Information & communication | 2019 |
| Trade Books UK Ltd | Professional & scientific | 2026 |
| Trade Locks Limited | Administrative & support | 2011 |
| Trade Van Locks Limited | Administrative & support | 2013 |
| Tradelink Commercials Limited | Wholesale & retail | 2020 |
| Tradelux Construction Ltd | Construction | 2022 |
| Trades Network Limited | Construction | 2020 |
| Tradingsurplus Ltd | Wholesale & retail | 2026 |
| Tradingtech Solutions Ltd | Information & communication | 2023 |
| Trafalgar RD Limited | Construction | 2024 |
| Traffic FIX Limited | Administrative & support | 2012 |
| Trafin Investments Ltd | Financial services | 2021 |
| Train 4 Skills Kent Limited | Education | 2026 |
| TRAIN2GAIN Motor Cross Training Ltd | Arts & recreation | 2019 |
| Trained by JOE Ltd | Arts & recreation | 2025 |
| Training for Security Limited | Administrative & support | 2009 |
| Tranklyn Consultancy and Training Limited | Information & communication | 2019 |
| Trans Meco Ltd | Transport & logistics | 2015 |
| Trans Voices Young Company CIC | Arts & recreation | 2024 |
| Transact Clients Group Ltd | Information & communication | 2025 |
| Transcend Solutions Limited | Information & communication | 2023 |
| Transfer a to B Limited | Transport & logistics | 2025 |
| Transform EAR Microsuction Ltd | Health & social care | 2024 |
| Transition Consultancy and Management Services Ltd | Professional & scientific | 2017 |
| Transline Group Ltd | Transport & logistics | 2016 |
| Transro Ltd | Transport & logistics | 2018 |
| Transroute Limited | Transport & logistics | 2025 |
| Transwise UK Ltd | Information & communication | 2015 |
| Travel Ambitions Limited | Administrative & support | 2020 |
| TRAVOL360 Limited | Wholesale & retail | 2024 |
| TRC Oriental Limited | Hospitality | 2019 |
| Tread Right Ltd | Wholesale & retail | 2026 |
| Treadstone Plant Limited | Wholesale & retail | 2018 |
| Treat a Local Community Asset Fairly Ltd | Other services | 2019 |
| Treatd Ltd | Wholesale & retail | 2025 |
| Treatz Gravesend Limited | Hospitality | 2015 |
| Trebilcook & Family Ltd | Construction | 2025 |
| Tredwen Auction Consultants Ltd | Professional & scientific | 2019 |
| Treedefi Ltd | Information & communication | 2021 |
| Trends Direct Ltd | Wholesale & retail | 2024 |
| Trexillion Ltd | Wholesale & retail | 2026 |
| Tribe 8 Limited | Professional & scientific | 2011 |
| Trigon Services Ltd | Construction | 2019 |
| Trillion Home and Property Services Limited | Real estate | 2017 |
| Trinity Associate Partnership Limited | Construction | 2014 |
| Trinity Beauty Enterprise Ltd | Other services | 2020 |
| Trinity Cleaning & Facilities UK Ltd | Administrative & support | 2022 |
| Trinity Court (Gravesend) Limited | Households | 2011 |
| Trinity Security Services Ltd | Administrative & support | 2021 |
| Triple J Group Ltd | Professional & scientific | 2023 |
| Triple MO Ltd | Health & social care | 2015 |
| Tritranslations Limited | Professional & scientific | 1994 |
| Trojan Engineering Ltd | Professional & scientific | 2020 |
| Troke Property Investment Ltd | Real estate | 2025 |
| Tropical Brazilian Centre Ltd | Wholesale & retail | 2022 |
| Trorla Rentals Ltd | Real estate | 2015 |
| TRP Building Services Ltd | Construction | 2025 |
| TRP Civil Engineering Ltd | Construction | 2025 |
| TRP Group Limited | Construction | 2014 |
| TRS Property Ltd | Real estate | 2009 |
| Truck Service Ltd | Manufacturing | 2016 |
| Truckserve UK Limited | Water & waste | 2015 |
| True Collective Worldwide Ltd | Information & communication | 2024 |
| True North Media Labs CIC | Information & communication | 2025 |
| True Visionary Ltd | Information & communication | 2023 |
| Truebuilt Construction Ltd | Construction | 2025 |
| Truro 1957 Limited | Extraterritorial | 2014 |
| Trustd Solutions Limited | Real estate | 2021 |
| Trustnothing Limited | Information & communication | 2018 |