| Virage Limited | Extraterritorial | 2001 |
| Vorrei Limited | Wholesale & retail | 2013 |
| Vortigern Ltd | Information & communication | 2024 |
| VP Specific Projects LLP | | 2026 |
| Vppl Southwark 1 Ltd | Construction | 2026 |
| Vulliamy Design Limited | Professional & scientific | 2023 |
| W & G Idealdecor Limited | Professional & scientific | 2007 |
| W. Elsom Quantity Surveying Services Ltd | Professional & scientific | 2020 |
| W.Hart & Son(Saffron Walden)Limited | Manufacturing | 1923 |
| WA Barns Development Limited | Construction | 2022 |
| Wade Refurbishments Limited | Real estate | 2021 |
| Wairto Holdings Limited | Financial services | 2025 |
| Wairto Ltd | Transport & logistics | 2022 |
| Wakfield Ltd | Hospitality | 2015 |
| Walden Aesthetics Limited | Health & social care | 2016 |
| Walden Curry Limited | Hospitality | 2026 |
| Walden Finance Limited | Financial services | 2020 |
| Walden Foods Ltd | Hospitality | 2019 |
| Walden Software Solutions Ltd | Information & communication | 2017 |
| Walden Strategy Limited | Professional & scientific | 2012 |
| Walden Sweeps Ltd | Administrative & support | 2022 |
| Walden's Little Wildlings Community Interest Company | Education | 2025 |
| Waldenrise Ltd | Administrative & support | 2003 |
| Waldens Wildings Ltd | Agriculture & fishing | 2024 |
| Walldove Consulting Ltd | Professional & scientific | 2024 |
| Warm Touch Plumbing & Heating Limited | Construction | 2017 |
| Waterbucket Software LLP | | 2024 |
| Waterside Developments (ELY) Limited | Professional & scientific | 2004 |
| Watson & FOX Limited | Manufacturing | 2021 |
| Watson & Woolner Limited | Construction | 2003 |
| Wave Fulfilment Ltd | Administrative & support | 2025 |
| WBF Consulting Ltd | Information & communication | 2024 |
| WC Ltd | Extraterritorial | 2008 |
| WE ARE Mattress Recycling Ltd | Wholesale & retail | 2020 |
| WE Plan Events Ltd | Administrative & support | 2022 |
| Weac Limited | Administrative & support | 1998 |
| Wealthademia Ltd | Financial services | 2013 |
| Weatherto Limited | Information & communication | 2018 |
| Weighbridge Court (Management) Limited | Households | 1988 |
| Weird Walk Ltd | Information & communication | 2019 |
| Welbeck Real Estate Advisors LLP | | 2023 |
| Wenden Bell Inn Limited | Real estate | 2016 |
| Wenden Properties Limited | Real estate | 2022 |
| Wendens Ambo (the Pines) Management Company Limited | Households | 2020 |
| Wendens Ambo Rugby Football Club Limited | Arts & recreation | 2010 |
| Wentwell Limited | Professional & scientific | 2025 |
| Wenwu Limited | Professional & scientific | 2022 |
| West Whittle Properties Limited | Real estate | 2010 |
| Western Electric Contractors Limited | Energy | 1996 |
| Western Money Limited | Financial services | 2014 |
| Westfield Developments Limited | Real estate | 1984 |
| Westfields Court Management (SW) Limited | Households | 2002 |
| Westphal Williams Limited | Information & communication | 2022 |
| Westwood Montessori Limited | Education | 2009 |
| What Else IS There Ltd | Wholesale & retail | 2025 |
| Whinridge Limited | Professional & scientific | 2026 |
| White Box Trading Limited | Administrative & support | 2010 |
| White Deer Events Limited | Administrative & support | 2020 |
| White Numbers Limited | Professional & scientific | 2007 |
| White Panda Consultancy Limited | Professional & scientific | 2017 |
| White Tiger Events Ltd | Administrative & support | 2022 |
| Whiteboard Inspiration Ltd | Professional & scientific | 2022 |
| Whitehouse Property Group Limited | Real estate | 2020 |
| Whitewood Group Limited | Financial services | 2024 |
| Whitewood Homes Limited | Construction | 2016 |
| Whitewood Property Limited | Real estate | 2024 |
| Whitmill Prescott Limited | Professional & scientific | 2016 |
| Widdington Driver Services Ltd | Transport & logistics | 2023 |
| Widdington Woodlands Limited | Agriculture & fishing | 2002 |
| Wightman Gallery Limited | Arts & recreation | 2023 |
| Wilby & Burnett LLP | | 2009 |
| Wild at Heart Rescue and Rehabilitation CIC | Agriculture & fishing | 2025 |
| Wilder Wolf Limited | Wholesale & retail | 2024 |
| Wilderness Imagination Learning Discovery Limited | Construction | 2016 |
| Wildings Associates Limited | Administrative & support | 2016 |
| William Charles Tiling Limited | Construction | 2014 |
| Willow & George Limited | Extraterritorial | 2009 |
| Willow Oak Projects Limited | Construction | 2025 |
| Willow Services (Plumbing and Heating) Limited | Construction | 2008 |
| Willows Clavering Ltd | Education | 2016 |
| Willows K9 Fertility Clinic Limited | Other services | 2021 |
| Wills Ayley Limited | Construction | 2022 |
| Wiltshire Consulting International Ltd. | Professional & scientific | 2004 |
| Wimbish Hall Cabins Limited | Hospitality | 2023 |
| Wire Films Limited | Information & communication | 2009 |
| Wise Entertainment Ltd | Information & communication | 2025 |
| Wiseman Management Ltd | Real estate | 2022 |
| Witine Limited | Information & communication | 2021 |
| Wjgc Ltd | Arts & recreation | 2022 |
| WM Ltd | Extraterritorial | 2009 |
| Wood Street Coffee Ltd | Hospitality | 2015 |
| Wood Street Coffee Roasters Limited | Manufacturing | 2018 |
| Woodham Land LLP | | 2010 |
| Woodhouse Flower Co Ltd | Wholesale & retail | 2026 |
| Work With Aptitude Group Limited | Administrative & support | 2023 |
| Work With Aptitude Limited | Administrative & support | 2023 |
| Work With Aptitude ST Albans LLP | | 2020 |
| Wozzlebox Limited | Information & communication | 2020 |
| WRP Timber Mouldings Limited | Construction | 2012 |
| WW Ltd | Extraterritorial | 2008 |