| Tri-Tec Windows Limited | Manufacturing | 2003 |
| Triple a Trading Ltd | Wholesale & retail | 2021 |
| Trojan Media Limited | Other services | 2017 |
| Trott & Whinny Ltd | Hospitality | 2018 |
| True Playaz Music Limited | Arts & recreation | 1996 |
| TSC - the Search Company Ltd | Administrative & support | 2006 |
| Ttab Limited | Health & social care | 2013 |
| Tuberville Flat Management Company Limited | Real estate | 1978 |
| Tudorsrus Ltd | Wholesale & retail | 2024 |
| Turbo Tyres Essex Limited | Extraterritorial | 2024 |
| TW Construction and Landscaping Limited | Construction | 2022 |
| Twyford Aviation Services (UK) Ltd | Transport & logistics | 2012 |
| Tylers Specialist Facilities Services Ltd | Administrative & support | 2024 |
| Tyrrell Compliance Services Ltd | Manufacturing | 2025 |
| UK Beauty World Limited | Other services | 2015 |
| UK Coptic Icons Prints Limited | Arts & recreation | 2020 |
| UK Proud Holdings Ltd | Financial services | 2021 |
| UK Thai Care Limited | Health & social care | 2019 |
| Ultraclear Home Improvements Ltd | Construction | 2019 |
| Union Pensions Trustees (Eastern) Limited | Financial services | 1979 |
| Unique Training Club Limited | Arts & recreation | 2026 |
| UP Front Coaching and Mentoring Ltd | Professional & scientific | 2022 |
| Upwey Investments Limited | Real estate | 2012 |
| Urbanflex Housing Ltd | Real estate | 2026 |
| Uttlesford Community Travel | Transport & logistics | 1997 |
| Uttlesford Community Travel Trading Limited | Transport & logistics | 1999 |
| V G Design Ltd | Professional & scientific | 2019 |
| Vajazzle Enterprises Limited | Other services | 2011 |
| Valais Blacknose Sheep Ltd | Agriculture & fishing | 2024 |
| Valencia Sports Tours Ltd | Administrative & support | 2017 |
| Varyx Ltd | Information & communication | 2024 |
| Vehicle Glass Direct Ltd | Wholesale & retail | 2023 |
| Vendio Limited | Administrative & support | 2023 |
| Vensu IT Limited | Information & communication | 2009 |
| Very Good Very Nice Ltd | Manufacturing | 2020 |
| VICTORYV11 Ltd | Health & social care | 2018 |
| Viking Mouldings Limited | Manufacturing | 2001 |
| Vintage Style Living Ltd | Wholesale & retail | 2021 |
| Vipa Ventures Limited | Professional & scientific | 2020 |
| Viper Classic Aircraft Limited | Transport & logistics | 2023 |
| Virdee Motor Group Limited | Extraterritorial | 2013 |
| Viridis Homes Limited | Construction | 2025 |
| Virtus Power Ltd | Professional & scientific | 2026 |
| Vital Contractors Limited | Information & communication | 1993 |
| Vitality Vitamins Ltd | Administrative & support | 2014 |
| VSK Creatives Ltd | Information & communication | 2020 |
| Vulcan Threat and Risk Management Limited | Administrative & support | 2024 |
| W Eaden Lilley Holdings Limited | Professional & scientific | 2000 |
| Wade Developments Ltd | Construction | 2019 |
| Wags and Whiskers Ltd | Professional & scientific | 2015 |
| Waldo Coburg Limited | Professional & scientific | 2014 |
| Walker Tree Care Limited | Administrative & support | 2014 |
| Wardrobe of Dunmow Ltd | Wholesale & retail | 2015 |
| Warren Joinery Ltd | Manufacturing | 2024 |
| Wash & WAG Limited | Other services | 2023 |
| Watches of ALL Time Limited | Other services | 2022 |
| Waterhouse Mason Ltd | Administrative & support | 2016 |
| Wayv Technologies International Trading Limited | Professional & scientific | 2018 |
| Wayv Technologies Limited | Professional & scientific | 2013 |
| WE ARE Digital Saints Ltd | Financial services | 2020 |
| WE Care 4 Air Limited | Manufacturing | 2014 |
| Weareimp Ltd | Professional & scientific | 2024 |
| Welli Boot Limited | Professional & scientific | 2019 |
| West London Graphics Limited | Professional & scientific | 2018 |
| West Park Limited | Administrative & support | 2018 |
| West Pets Limited | Wholesale & retail | 2023 |
| West Security Limited | Wholesale & retail | 2024 |
| Westbourne Corporation Ltd | Real estate | 2018 |
| Westfalen R.V. Limited | Wholesale & retail | 2007 |
| Weston Carpentry and Construction Ltd | Construction | 2024 |
| Westrip Property Limited | Real estate | 2025 |
| WGC Commercial Services Limited | Construction | 2025 |
| Wheat Sheaf Coffee House Ltd | Manufacturing | 2023 |
| White Oaks (Property Management) Limited | Real estate | 2026 |
| Wifm Ltd | Information & communication | 2023 |
| Wild Duck Farming Ltd | Real estate | 2024 |
| William Beard Woodcraft Limited | Manufacturing | 2020 |
| Willow Cottages Limited | Real estate | 2011 |
| Wimbletown House Ltd | Hospitality | 2024 |
| Windhill Investments Ltd | Real estate | 2000 |
| Windlestraw Cost Management Limited | Construction | 2013 |
| Windmill Assets Ltd | Real estate | 2024 |
| Windmill Carpentry & Construction Ltd | Construction | 2023 |
| Wise Smart 1 Limited | Construction | 2025 |
| Wise Smart 2 Limited | Construction | 2025 |
| Wise Smart Living Ltd | Construction | 2019 |
| WJS Scaffolding Ltd | Construction | 2026 |
| WOK Wraps Events Limited | Hospitality | 2025 |
| Woodbury Farm Limited | Real estate | 2009 |
| Woodhams Enterprises Ltd | Financial services | 2026 |
| Woodhams Holdings Ltd | Financial services | 2024 |
| Woodway Contracts Limited | Construction | 2020 |
| Woodway Flooring Limited | Construction | 2020 |
| Woodway Group Interiors Limited | Construction | 2020 |
| Wordsworth Editions Limited | Information & communication | 1987 |
| Workforce (South) Limited | Construction | 2021 |
| World Without TB | Health & social care | 2007 |
| Wormald Farms Limited | Agriculture & fishing | 2020 |
| Wrights Roofing Services Ltd | Construction | 2014 |
| X-Gl Systems Limited | Information & communication | 1987 |