| Thompson Harrison Ltd | Administrative & support | 2016 |
| Thoms Associates Limited | Financial services | 2004 |
| TMC Pharma Services Limited | Professional & scientific | 2001 |
| Topco Coffee Limited | Financial services | 2022 |
| Treesmiths Ltd | Administrative & support | 2012 |
| Trilogy Financial Planning Ltd | Financial services | 2019 |
| Tunescribers Ltd | Information & communication | 2024 |
| UK Ekiden CIC | Education | 2024 |
| Ultravibe Tanning Limited | Other services | 2024 |
| Vallance Racing Ltd | Arts & recreation | 2025 |
| Veterinary X-Rays Limited | Extraterritorial | 2004 |
| Vigil Fire & Security Limited | Administrative & support | 2002 |
| Vigil Security Limited | Administrative & support | 2023 |
| Vision Car Company Ltd | Wholesale & retail | 2012 |
| VXR Imaging Limited | Professional & scientific | 2010 |
| Wags N Whiskers Petcare Limited | Other services | 2025 |
| Wallis Carpentry and Joinery Ltd | Construction | 2017 |
| Weald Conservation Services LLP | | 2025 |
| Weedsmiths Ltd | Agriculture & fishing | 2020 |
| White Squared Consulting Ltd | Professional & scientific | 2020 |
| Willowcrest Homes Limited | Construction | 2005 |
| Willowcrest Homes Reading Limited | Financial services | 2026 |
| Workwear Systems Limited | Wholesale & retail | 2020 |
| You'Re Social Ltd | Professional & scientific | 2022 |
| ZOE Meade Ltd | Information & communication | 2019 |