| Voyager Overseas Consultants Ltd | Education | 2024 |
| VW Coaching Ltd | Information & communication | 2021 |
| Vyrum Ltd | Real estate | 2026 |
| W J Smith & Sons Limited | Agriculture & fishing | 2018 |
| W. R. Henman & Sons Limited | Agriculture & fishing | 1964 |
| W.I.B. Insurance Consultants Limited | Financial services | 2001 |
| W.L.Tatham Ltd | Other services | 2024 |
| WAE Joint Ventures Limited | Manufacturing | 2017 |
| Walkers Barn Management Company Limited | Households | 2015 |
| Warland Gardens (Kidlington) Management Company Limited | Households | 2017 |
| Watches of Ibiza Ltd | Wholesale & retail | 2025 |
| WE ARE Restore Limited | Other services | 2025 |
| WE ARE Vantage Ltd | Professional & scientific | 2024 |
| WE FIX and Trade Ltd | Wholesale & retail | 2018 |
| Weavers Place Management Company (Witney) Ltd. | Households | 2011 |
| West Edge (Botley) Management Company Ltd | Households | 2008 |
| West Meade Court Management Limited | Households | 1992 |
| Westlands Management Company Limited | Households | 2016 |
| What IS Innovation Group Limited | Professional & scientific | 2024 |
| What IS Innovation Limited | Financial services | 2024 |
| Wheeler Court Management Company Limited | Households | 2020 |
| Whirld Limited | Other services | 2013 |
| White Horse Hill Limited | Extraterritorial | 2010 |
| White Label Consult Ltd | Professional & scientific | 2020 |
| Whitebridge Cars Ltd | Wholesale & retail | 2003 |
| WII UK Limited | Wholesale & retail | 2021 |
| Wilbo Management Company Limited | Households | 1977 |
| Wild Fire Forecasting Limited | Professional & scientific | 2021 |
| Wild Human Retreats Ltd | Other services | 2025 |
| Wild Meadow Jurassic Limited | Real estate | 2023 |
| Wild Rose Studios Ltd | Information & communication | 2025 |
| Wildflower Press Limited | Information & communication | 2018 |
| William Buckland Management Company Limited | Real estate | 2016 |
| Willoughby Fields Management Company Limited | Households | 2007 |
| Willowbrook Farm Charity Limited | Education | 2019 |
| Willows Farm Management Company Limited | Real estate | 2015 |
| Windrush Mews Management Company Limited | Households | 1999 |
| Windrush Scaffolding Limited | Construction | 2014 |
| Wine Sorted Limited | Administrative & support | 2005 |
| Wingham Homes Ltd | Real estate | 2021 |
| WMJ Mortgage Management Ltd | Other services | 2015 |
| WOK HEY Limited | Hospitality | 2024 |
| Wolfbane Cybernetic Limited | Professional & scientific | 1988 |
| Women's Solidarity Network Ltd | Education | 2019 |
| Woodbank (Kirtlington) Management Company Limited | Households | 2010 |
| Woodlands (Banbury) Management Company 92 Limited | Households | 1992 |
| Woodlands (Shotover) Management Company Limited | Households | 1994 |
| Woodlands (Wootton) Management Company Limited | Households | 2018 |
| Woodman Court Management Company Ltd | Households | 2004 |
| Woodperry Road Developments Management Limited | Households | 2017 |
| Woodstock Ventures Limited | Real estate | 2025 |
| Woofy Walks Limited | Agriculture & fishing | 2022 |
| Word Avenue LLP | | 2018 |
| Work Positive Limited | Professional & scientific | 2007 |
| WOW Book a BED Ltd | Hospitality | 2019 |
| Wrecking Light Ltd | Information & communication | 2023 |
| Wrist Electrical Limited | Other services | 2002 |
| Writeful Ltd | Information & communication | 2025 |
| Wurh Ltd | Financial services | 2025 |
| Wychwood Commercial Services Limited | Professional & scientific | 2007 |
| Wychwood Homes (Central) Ltd | Real estate | 2005 |
| Wychwood Homes (Cotswold and Thames Valley) Ltd | Other services | 2014 |
| Wychwood Homes (Western) Ltd | Real estate | 2005 |
| Wychwood Homes Limited | Construction | 2004 |
| Wyke Town Planning Limited | Professional & scientific | 2025 |
| X Simulation Ltd | Professional & scientific | 2023 |
| Xitex Limited | Other services | 1993 |
| Xpergia Limited | Information & communication | 2018 |
| Xpergia Properties Limited | Real estate | 2023 |
| Xsoft Ltd | Information & communication | 2026 |
| Y NOT Travel Ltd | Transport & logistics | 2022 |
| Yang & LIN Properties Ltd | Real estate | 2019 |
| Yasa Limited | Manufacturing | 2009 |
| YEW Tree Courtyard Management Company Limited | Households | 2016 |
| Yoloxi Ltd | Wholesale & retail | 2025 |
| Your Home Improvement Ltd | Wholesale & retail | 2025 |
| Your Service Today Ltd | Information & communication | 2014 |
| Zabka Supermarket Ltd | Wholesale & retail | 2019 |
| Zaflo Ltd | Wholesale & retail | 2026 |
| Zainab World Ltd | Wholesale & retail | 2026 |
| Zenkai Motorsport Ltd | Wholesale & retail | 2023 |
| Zilicium Limited | Wholesale & retail | 2011 |
| Zonasur Cinema Limited | Administrative & support | 2025 |
| Zytca Limited | Professional & scientific | 2019 |