| TB Ventures Ltd | Information & communication | 2023 |
| TC Automations Limited | Information & communication | 2025 |
| TDK Autocare Ltd | Wholesale & retail | 2023 |
| Team KK Productions Ltd | Arts & recreation | 2022 |
| TEC Payments Consulting Ltd | Information & communication | 2026 |
| Tech Insight Consulting Ltd | Information & communication | 2023 |
| Tech Projects (London) Limited | Information & communication | 2015 |
| Techanywhere Ltd | Information & communication | 2022 |
| Techne & Arete Ltd | Construction | 2025 |
| Technoah PVT Limited | Information & communication | 2020 |
| Techscope Solutions Ltd | Information & communication | 2024 |
| Techskillspro Ltd | Education | 2023 |
| Teejay Services Limited | Health & social care | 2025 |
| Tekk’S Cafe Limited | Hospitality | 2025 |
| Telencrypt Limited | Information & communication | 2011 |
| Temitope & LPF Healthcare Ltd | Health & social care | 2023 |
| Tenantnest Holdings Limited | Real estate | 2024 |
| Teradita Limited | Information & communication | 2019 |
| Teresa Johnston Limited | Financial services | 2025 |
| Terrace Catering Limited | Hospitality | 2017 |
| Test and QA Consultants Limited | Information & communication | 2022 |
| Test Perfect Limited | Information & communication | 2016 |
| TFS Catering Ltd | Hospitality | 2023 |
| TG Professionals Ltd | Hospitality | 2023 |
| THA Europe Ltd | Information & communication | 2021 |
| Thames Corp Limited | Other services | 2008 |
| Thames Property Management Limited | Real estate | 2007 |
| Thamex Builders Ltd | Construction | 2022 |
| Thandi Investments Ltd | Wholesale & retail | 2020 |
| THE Ace Group Corp Ltd | Administrative & support | 2025 |
| THE Akkademy Ltd | Administrative & support | 2018 |
| THE Animal Protection and Woodland Organisation | Agriculture & fishing | 2011 |
| THE Archduke Restaurant LLP | | 2004 |
| THE Barrels Belvedere Limited | Hospitality | 2025 |
| THE Beautee Club Ltd | Other services | 2022 |
| THE BEN Gough Corporation Ltd | Information & communication | 2022 |
| THE Biddlestone Group Ltd | Real estate | 2022 |
| THE Big Match Framing Co Ltd | Manufacturing | 2012 |
| THE Box-Hub Ltd | Wholesale & retail | 2025 |
| THE Broker Awards Limited | Information & communication | 2022 |
| THE Captured Picture Company Ltd | Information & communication | 2022 |
| THE CEO Lounge Ltd | Hospitality | 2024 |
| THE City Printing Service Limited | Manufacturing | 1998 |
| THE Complete Building Company (Bexleyheath) Ltd | Construction | 2019 |
| THE Dartford Group Ltd | Water & waste | 2019 |
| THE Deen House Education Limited | Education | 2020 |
| THE Doggy Paddle Pool Ltd | Other services | 2026 |
| THE Elizabeth Gift Company Limited | Other services | 2025 |
| THE Ethiope Foundation | Water & waste | 2013 |
| THE Ezer Group Limited | Hospitality | 2024 |
| THE Fincon Service Limited | Administrative & support | 2013 |
| THE Flipping Company Ltd | Wholesale & retail | 2021 |
| THE Grecian Bexley Ltd | Hospitality | 2021 |
| THE Greenwich Tea Company Limited | Wholesale & retail | 2013 |
| THE Homevalley Group Limited | Real estate | 2020 |
| THE Jerk DEN Ltd | Hospitality | 2023 |
| THE Libran Tigress Limited | Hospitality | 2021 |
| THE Lucrative Lady Ltd | Administrative & support | 2018 |
| THE Mayplace Co PVT Ltd | Real estate | 2019 |
| THE Mayplace Solutions Ltd | Construction | 2023 |
| THE Nail Plug PAO Ltd | Other services | 2024 |
| THE North Mason Ltd | Construction | 2025 |
| THE Novice Gardener Ltd | Agriculture & fishing | 2024 |
| THE Olde Barrell Flats Ltd | Real estate | 2025 |
| THE Regal Merchant Group Ltd | Wholesale & retail | 2022 |
| THE Rismo Associates Ltd | Professional & scientific | 2011 |
| THE Salami Strategy Consulting Limited | Professional & scientific | 2017 |
| THE Salon Hairdressing Ltd | Other services | 2015 |
| THE Spirit Shoppe Ltd | Wholesale & retail | 2023 |
| THE Stage Geek Ltd | Information & communication | 2025 |
| THE Stubbs College London Ltd | Education | 2014 |
| THE Stubbs Free School Limited | Education | 2013 |
| THE TEN Academy Limited | Education | 2021 |
| THE Tipsy Bakery Limited | Manufacturing | 2020 |
| THE Total Foot-Care Clinic Limited | Health & social care | 2025 |
| THE Unlikely Mummy CIC | Administrative & support | 2021 |
| THE Urban Shepherd Ltd | Other services | 2002 |
| THE Water Closet Ltd | Wholesale & retail | 2022 |
| THE Westbury Westbury Company Limited | Real estate | 2023 |
| THE Winners Cyprus Ltd | Transport & logistics | 2020 |
| THE Wood SE3 Ltd | Wholesale & retail | 2024 |
| The-Property-Cloud.Co.Uk Limited | Real estate | 2014 |
| Theakstons Workshop Services Ltd | Wholesale & retail | 2010 |
| Theatre Cave Limited | Education | 2023 |
| Thema Properties Ltd | Real estate | 2017 |
| Themailing.Co Ltd | Information & communication | 2021 |
| Themis Axis Limited | Wholesale & retail | 2026 |
| Theorem Consultancy Services Ltd | Information & communication | 2020 |
| Theretroverse Limited | Manufacturing | 2025 |
| Thermogrowth Ltd | Professional & scientific | 2024 |
| Thimoh Limited | Health & social care | 2009 |
| Think Web Solutions Ltd | Information & communication | 2025 |
| Thirty Five Limited | Construction | 2013 |
| Thomas Enabling Electrical Limited | Construction | 2022 |
| Thor Carpentry Ltd | Construction | 2022 |
| Thor Contractors Limited | Construction | 2025 |
| Thornton Construction (South East) Ltd | Construction | 2013 |
| Three Z Property Limited | Real estate | 2019 |
| THRTY3 Talent Management Ltd | Professional & scientific | 2025 |
| THY ROD and Staff Properties Ltd | Real estate | 2019 |