| Tcd.Lifestyle Ltd | Wholesale & retail | 2019 |
| Tchim Limited | Financial services | 2025 |
| TD Marketing Services Limited | Professional & scientific | 2025 |
| Teer Estates Limited | Extraterritorial | 2016 |
| TEG Boutique & Beauty Lounge Ltd | Wholesale & retail | 2026 |
| Tegsview Limited | Households | 2024 |
| Teka Limited | Professional & scientific | 2013 |
| Terence Court Residents Association Limited | Households | 1962 |
| Terra Refurb Ltd | Construction | 2011 |
| TF Traders Ltd | Wholesale & retail | 2020 |
| Thai Siam Spa Massage Ltd | Other services | 2021 |
| Thapa Limited | Administrative & support | 2026 |
| THE Brothers Bazaar Limited | Wholesale & retail | 2022 |
| THE Family Bounce Occasions Ltd | Arts & recreation | 2024 |
| THE Forge Centre Limited | Education | 2021 |
| THE Junkyard Ltd | Wholesale & retail | 2018 |
| THE Lion Grooming Room Limited | Other services | 2024 |
| THE Lord's Kitchen Ltd | Hospitality | 2023 |
| THE Major Plaice Limited | Hospitality | 2025 |
| THE New Kingdom Church of the Lord | Other services | 2021 |
| THE OT Zone Ltd | Health & social care | 2024 |
| THE Rockin' Roofer Ltd | Construction | 2022 |
| THE Village Sandwich Bar Limited | Wholesale & retail | 2016 |
| Thearbitrageblueprint Ltd | Education | 2025 |
| Thebestessays.Co.Uk Limited | Education | 2017 |
| Theevaham Fresh Ltd | Wholesale & retail | 2021 |
| Thomas More Legal Services Limited | Professional & scientific | 2024 |
| Thread and Bobbin Ltd | Wholesale & retail | 2025 |
| Tiie Danbee Ltd | Hospitality | 2024 |
| Timah Little Nanny Services Limited | Health & social care | 2026 |
| TJ Progressive Limited | Financial services | 2016 |
| Tjsg Investments Limited | Real estate | 2021 |
| TMT Cache Limited | Real estate | 2022 |
| TMT Cache Services Ltd | Administrative & support | 2019 |
| Tobbytox Limited | Professional & scientific | 2016 |
| Tobtransportservice Ltd | Transport & logistics | 2026 |
| Tokx Ltd | Wholesale & retail | 2019 |
| Top Granite Marble Ltd | Construction | 2008 |
| Top HAT Films Ltd | Information & communication | 2011 |
| Top Management Systems Ltd | Information & communication | 2026 |
| Top Stone Station Limited | Wholesale & retail | 2014 |
| Topnil Limited | Health & social care | 2016 |
| Topsoft Ltd | Information & communication | 2016 |
| Tosin Enterprise Ltd | Wholesale & retail | 2025 |
| Tottfort Minds Centre Ltd | Health & social care | 2022 |
| Transport for School Ltd | Transport & logistics | 2017 |
| Travel Masters SL Ltd | Administrative & support | 2020 |
| Travel Masters Vacations Ltd | Administrative & support | 2022 |
| Triiiune Ltd | Health & social care | 2024 |
| Trinitas Academy Trust | Education | 2011 |
| Triple J Real Estate Ltd | Real estate | 2024 |
| Tsankovi Ltd | Manufacturing | 2024 |
| TTE Services Ltd | Transport & logistics | 2015 |
| Turabeg Engineering Limited | Professional & scientific | 2014 |
| Turay Ventures Limited | Financial services | 2018 |
| Turners Products Ltd | Manufacturing | 2002 |
| TUTORS4YOU Ltd | Education | 2025 |
| Tutulizer African Cuisine UK Ltd | Hospitality | 2022 |
| Twin and Co Limited | Health & social care | 2012 |
| Twinnie Day Nursery Ltd | Education | 2012 |
| Twist Facilities Management Limited | Administrative & support | 2012 |
| Twist Print and Design Ltd | Manufacturing | 2008 |
| UB5 Property Limited | Real estate | 2015 |
| UK Acorn Ltd | Construction | 2025 |
| UK Fleet Audit Ltd | Transport & logistics | 2026 |
| UK Guest House Limited | Hospitality | 2024 |
| UK Tech Developer Ltd | Information & communication | 2025 |
| Ultimate Hope Ltd | Health & social care | 2013 |
| Uncovered Agency Ltd | Professional & scientific | 2024 |
| Under and Over Landscape Limited | Administrative & support | 2025 |
| Unique De'Kor Limited | Professional & scientific | 2021 |
| Unique Treasures Ltd | Health & social care | 2026 |
| Uniquedekorhomes Limited | Construction | 2022 |
| United Group(Uk) Limited | Transport & logistics | 2023 |
| Universal UK Properties Ltd | Real estate | 2025 |
| Unlimited RLV Ltd | Construction | 2022 |
| Uphold Healthcare Limited | Administrative & support | 2018 |
| Upper Layers Limited | Manufacturing | 2018 |
| Valcolt Limited | Construction | 2014 |
| Valentines Solutions Ltd | Construction | 2024 |
| Valeta London Ltd | Manufacturing | 2024 |
| Valiance Worldwide Limited | Wholesale & retail | 2024 |
| Valley Freedom Solutions Limited | Wholesale & retail | 2026 |
| Vanitha Supermarket Ltd | Wholesale & retail | 2024 |
| Vanitha Superstore Ltd | Wholesale & retail | 2022 |
| Vavi Transport Ltd | Transport & logistics | 2022 |
| VEB IT Ltd | Construction | 2012 |
| Vebic Limited | Real estate | 2020 |
| Vero Building Ltd | Construction | 2021 |
| Vero Kitchen Ltd | Manufacturing | 2024 |
| Vezeteu Stone Limited | Construction | 2025 |
| Vicen ED Consultancy Ltd. | Education | 2013 |
| Vinod Kumar Kamboj Ltd | Construction | 2021 |
| Vintage Aircraft and Automobile Museum Ltd | Arts & recreation | 2025 |
| Vintera Constructions Ltd | Construction | 2026 |
| Virk Tech Solutions Ltd | Wholesale & retail | 2023 |
| Virtual Linx Digital Solutions Limited | Wholesale & retail | 2023 |
| VIS Innata Solutions Limited | Professional & scientific | 2024 |
| Visit Sicily Ltd. | Real estate | 2017 |
| Vista Valleys Travel and Tourism Ltd | Administrative & support | 2025 |