| THE Thoughtful Pet Food Store Ltd | Wholesale & retail | 2014 |
| THE Training Stimulus Ltd | Education | 2022 |
| THE Treasure Food & Wine (UK) Limited | Wholesale & retail | 2011 |
| THE Vintage Salon Ltd | Other services | 2026 |
| THE White Coat Group Limited | Professional & scientific | 2026 |
| Thebackline Ltd | Information & communication | 2026 |
| This IS HR Ltd | Administrative & support | 2016 |
| This IS Limited | Professional & scientific | 2004 |
| Thomas Dawson LLP | | 2020 |
| Thorburn Enterprises Ltd | Wholesale & retail | 2021 |
| Timalex Accounting Ltd | Professional & scientific | 2014 |
| Tirmizey DA Costa Limited | Professional & scientific | 2002 |
| Tirmizey DA Kosta Limited | Other services | 2018 |
| TML Technologies Ltd | Information & communication | 2026 |
| Tomfooleries Ltd | Information & communication | 2011 |
| Toosey Solutions Limited | Professional & scientific | 2015 |
| Top Mark Roofing & Guttering Ltd | Construction | 2025 |
| Torque Monsta Automotive LLP | | 2025 |
| Total Building Management Limited | Professional & scientific | 2015 |
| Total Energy Management Limited | Professional & scientific | 2007 |
| Total Environmental Management Limited | Professional & scientific | 2003 |
| Town & Country Funeral Directors Ltd | Other services | 2014 |
| Trade Tech International Limited | Professional & scientific | 2017 |
| Traditional Stairs & Spindles Limited | Manufacturing | 1991 |
| Trevara Ltd | Construction | 2025 |
| Trusted Horizons Ltd | Administrative & support | 2025 |
| TSE Scaffolding Contractors Ltd | Construction | 2020 |
| TSL Resilience (Coaching & Consultancy) Ltd | Professional & scientific | 2024 |
| Tudor DRY Cleaners Ltd | Administrative & support | 2005 |
| Tuggin' Tackle Ltd | Wholesale & retail | 2021 |
| TUK TUK PAN Asian Ltd | Hospitality | 2019 |
| Tuktuk Sandhurst Ltd | Hospitality | 2020 |
| Turkish Kebabs Ltd | Hospitality | 2019 |
| Turumar Limited | Professional & scientific | 2015 |
| TW Care Consultancy Ltd | Health & social care | 2026 |
| Two Oaks Consulting Ltd | Professional & scientific | 2025 |
| Tyne Carpets & Flooring Limited | Construction | 2000 |
| Uccom Ltd | Professional & scientific | 2025 |
| UK Home Systems Ltd | Construction | 2025 |
| UK Print Finishing Services Ltd | Manufacturing | 2013 |
| Unbound Productions LLP | | 2018 |
| Underground Utilities Group Ltd | Construction | 2018 |
| United Cable Company Ltd | Construction | 2022 |
| Unity Dance Academy Limited | Arts & recreation | 2020 |
| Urban Edge Carpentry Limited | Manufacturing | 2026 |
| Ustore Investments Limited | Transport & logistics | 2009 |
| Ustore Sandhurst Ltd | Other services | 2007 |
| V4B Communications Limited | Information & communication | 2008 |
| VA Studio Systems Ltd | Wholesale & retail | 2021 |
| Valinor Studios Ltd | Arts & recreation | 2025 |
| Valkyrie Roofing Limited | Construction | 2026 |
| Vegan Warrior Limited | Wholesale & retail | 2021 |
| Veritas Nova Consulting Engineers Ltd | Professional & scientific | 2025 |
| Veritas TM Ltd | Real estate | 2025 |
| Vesica Urology Limited | Health & social care | 2010 |
| Vickery Properties Limited | Real estate | 2022 |
| Viking Planning Ltd | Professional & scientific | 2024 |
| Vimn Education Ltd | Education | 2023 |
| Vine Design Limited | Administrative & support | 2002 |
| VIP Adrenaline Limited | Professional & scientific | 2004 |
| VIP Bathrooms Ltd | Construction | 2024 |
| VIP Builders Ltd | Construction | 2025 |
| VIP Fire Solutions Ltd | Public administration | 2024 |
| VIP Plumbing & Heating Ltd | Construction | 2024 |
| Visagi Limited | Education | 2010 |
| Viyona Limited | Professional & scientific | 2022 |
| Vizior Ltd | Professional & scientific | 2021 |
| VM Music Ltd | Arts & recreation | 2021 |
| Vogue Windows Doors and Conservatories Limited | Public administration | 2009 |
| VSN Developing Ltd | Construction | 2017 |
| VSN Enterprises Limited | Construction | 2003 |
| Vulcan Business Services Ltd | Administrative & support | 2018 |
| Vulcan Motors Holdings Limited | Wholesale & retail | 2020 |
| W & P Investments Limited | Construction | 2024 |
| Waller Medical LP | | 2013 |
| Wandering Willow Ltd | Professional & scientific | 2023 |
| Watersbeach Ltd | Wholesale & retail | 2025 |
| Waxbusters Ltd | Health & social care | 2024 |
| WE DO Wonders Ltd | Administrative & support | 2026 |
| Western Buildings Property Management Ltd | Real estate | 2024 |
| Western Phoenix Property Development Ltd | Real estate | 2026 |
| Wheelbarrows Direct Ltd | Wholesale & retail | 2015 |
| Whitmore Close (Owlsmoor) Management Company Limited | Households | 2013 |
| Wildstone Property Ltd | Real estate | 2017 |
| Woodchip Carpentry Ltd | Construction | 2018 |
| Woodwise Carpentry Limited | Wholesale & retail | 2008 |
| Wrapped Moments Ltd | Wholesale & retail | 2026 |
| XEP Group Ltd | Wholesale & retail | 2026 |
| Xonic Capital 2 UK Ltd | Financial services | 2024 |
| Yellowfin Games Ltd | Manufacturing | 2025 |
| Yeti Cooperative Ltd | Wholesale & retail | 2016 |
| Yewside Properties Limited | Construction | 2003 |
| Your House Limited | Real estate | 2004 |
| Youth Development League Ltd | Arts & recreation | 2022 |
| Zaxswax Ltd | Administrative & support | 2022 |
| ZE Group Limited | Administrative & support | 2019 |
| ZEN Kids Ltd | Health & social care | 2017 |
| Zero Limit Collective Ltd | Wholesale & retail | 2026 |
| Zold Kert Ltd | Agriculture & fishing | 2026 |
| Zooblin Ltd | Information & communication | 2024 |