| Three Link Solutions Ltd | Information & communication | 2019 |
| Three Wheel Entertainment Ltd | Information & communication | 2014 |
| Threelittlebirdsfly Ltd | Financial services | 2026 |
| Thrive & Root Limited | Administrative & support | 2026 |
| Throssell Holdings Limited | Financial services | 2023 |
| Tiger Antiques Limited | Professional & scientific | 1999 |
| Tiger Fire and Security UK Ltd | Administrative & support | 2024 |
| TIK Premier Ltd | Wholesale & retail | 2026 |
| Tilleys Glamping Limited | Hospitality | 2012 |
| Tilston Business Solutions Ltd | Professional & scientific | 2019 |
| Time to Deploy Ltd | Financial services | 2016 |
| Timeless Consult Ltd | Professional & scientific | 2024 |
| Timescape Adventures Ltd | Information & communication | 2021 |
| Timpson Advisory Limited | Administrative & support | 2026 |
| Tinderhouse Limited | Information & communication | 2003 |
| Tinereanu Trans Ltd | Transport & logistics | 2017 |
| Tinted Lens Ltd. | Information & communication | 2014 |
| Tiny Tickets Ltd | Arts & recreation | 2026 |
| Tiny Tim's Company Limited | Hospitality | 2019 |
| Tippu & Palmer RTE Company Limited | Households | 2009 |
| Tippu & Palmer RTM Company Limited | Households | 2008 |
| Tivoli Manufacturing Limited | Manufacturing | 1995 |
| TJ Logistics UK Ltd | Transport & logistics | 2025 |
| TJ Wholesale Ltd | Wholesale & retail | 2023 |
| TJD Services Kent Limited | Financial services | 2010 |
| TK Business Ltd | Professional & scientific | 2020 |
| TKW Group Ltd | Wholesale & retail | 2023 |
| TKW Holdings Ltd | Administrative & support | 2024 |
| TLC 3 Limited | Construction | 2025 |
| TLC Risk Management Ltd | Administrative & support | 2021 |
| Tlmc Holdings Limited | Financial services | 2024 |
| Tlmc Ltd | Real estate | 2010 |
| Tlpa Ltd | Real estate | 2023 |
| TLS Software Ltd | Information & communication | 2026 |
| TM & FB Love Boba Ltd | Hospitality | 2022 |
| TM Management & Accounts Ltd | Professional & scientific | 2019 |
| TMC Assist (Consultancy) Ltd | Administrative & support | 2017 |
| TMG Housing Ltd | Real estate | 2026 |
| TMT Services Ltd | Administrative & support | 2020 |
| Tokara Hampshire Limited | Real estate | 2017 |
| Tollivar Ltd | Information & communication | 2025 |
| Tolnima Ltd | Professional & scientific | 2022 |
| TOM Elders Ltd | Information & communication | 2012 |
| Tomi G Services Ltd | Health & social care | 2020 |
| Tomilloe Limited | Real estate | 2019 |
| Tommy M Ltd | Administrative & support | 2020 |
| Tonerider Limited | Wholesale & retail | 2009 |
| Tonford Holdings Limited | Extraterritorial | 2004 |
| Top BOY Acquisitions Ltd | Real estate | 2025 |
| Top CUT Barbers Canterbury Ltd | Other services | 2020 |
| Top Line Maintenance Ltd | Construction | 2025 |
| Top Shield Roofing Ltd | Construction | 2024 |
| Top Tech Moto Ltd | Wholesale & retail | 2025 |
| Top Villas Holdings Ltd | Financial services | 2025 |
| Top Villas Holidays Limited | Extraterritorial | 2024 |
| Top Villas Limited | Administrative & support | 2014 |
| TOP2% Limited | Other services | 2009 |
| Topaz Luxury Travel Ltd | Administrative & support | 2018 |
| Topp Tiling Ltd | Construction | 2023 |
| Toppac UK Limited | Manufacturing | 2020 |
| Tops Canterbury Ltd | Hospitality | 2019 |
| TOR Spa Retreat Limited | Other services | 2000 |
| Tora Vends Limited | Hospitality | 2025 |
| Toro Professional Services Ltd | Other services | 2020 |
| Tota Fruits and VEG Ltd | Wholesale & retail | 2026 |
| Total Quality Management Systems Ltd | Administrative & support | 2016 |
| Totally Wrapped ! Limited | Wholesale & retail | 2016 |
| Totus Education Limited | Other services | 2013 |
| Touche Ltd | Professional & scientific | 2019 |
| Towal Afro Foods & Hair Ltd | Wholesale & retail | 2026 |
| Tower Way Construction Limited | Construction | 2024 |
| Tower Way Limited | Construction | 2023 |
| Townhouse Investments Ltd | Construction | 2026 |
| Townscape Havelock Ltd | Construction | 2014 |
| Townscape Investments Ltd | Real estate | 2015 |
| Townscape Ltd | Construction | 2015 |
| Townscape Tannery Square Ltd | Real estate | 2014 |
| Townscape Thanet Way Limited | Construction | 2021 |
| Toymart.Com Limited | Wholesale & retail | 1998 |
| Traceidm Limited | Professional & scientific | 2026 |
| Track Tiles Ltd | Wholesale & retail | 2024 |
| Trade Lane Ltd | Wholesale & retail | 2025 |
| Trade Sales South East Ltd | Wholesale & retail | 2015 |
| Tradebros Ltd | Wholesale & retail | 2025 |
| Tradem Ltd | Wholesale & retail | 2014 |
| Trading Drive Ltd | Transport & logistics | 2022 |
| Trakel Ltd | Administrative & support | 2021 |
| Trales of the Unexpected Ltd | Administrative & support | 2024 |
| Tranquil Film Finance LLP | | 2006 |
| Transformational Insight Limited | Information & communication | 2018 |
| Transformative Education C.I.C. | Education | 2015 |
| Transitania Ltd | Construction | 2023 |
| Transport Assist Ltd | Transport & logistics | 2025 |
| Trax Investments (Canterbury) Ltd | Households | 2018 |
| Tree Guys Kent Limited | Administrative & support | 2022 |
| Treleaven Consultants Ltd | Professional & scientific | 2016 |
| Trelew Limited | Real estate | 2021 |
| Trendifynow.Co.Uk Ltd | Information & communication | 2025 |
| Trendy Panda Ltd | Wholesale & retail | 2025 |
| Trevarra Court (Folkestone) Limited | Households | 2015 |