| Windypath Ltd | Information & communication | 2024 |
| Wine & Earth Limited | Wholesale & retail | 2018 |
| Wine Journal Limited | Education | 2026 |
| Winesdirect Holdings Ltd | Other services | 2024 |
| Winesdirect Limited | Other services | 2009 |
| Wingnut Audio Visual Limited | Other services | 2017 |
| Wings Transport Limited | Transport & logistics | 2004 |
| Winifred C Whyte Pensions Contractors Ltd | Professional & scientific | 2016 |
| Winsons Limited | Construction | 2020 |
| Winspeed Motorsport Limited | Wholesale & retail | 2009 |
| Winstanley Investments Ltd | Real estate | 2010 |
| Winter Oak Talent Limited | Administrative & support | 2025 |
| Winterwood Timber Limited | Wholesale & retail | 2022 |
| Wiseamp Electrics Ltd | Construction | 2022 |
| Wisern Ltd | Professional & scientific | 2021 |
| Witchcraft Incorporated Limited | Wholesale & retail | 2023 |
| With Mindfulness Limited | Extraterritorial | 2017 |
| With(In) Studio Limited | Other services | 2024 |
| Witley Land Limited | Real estate | 2014 |
| Wizdom Properties Ltd | Real estate | 2018 |
| Wizz Cars Guildford Ltd | Transport & logistics | 2023 |
| WJ Engineering Limited | Manufacturing | 1996 |
| WJC Counselling Ltd | Health & social care | 2023 |
| WJF Medical Services Ltd | Health & social care | 2024 |
| WM Tours Ltd | Administrative & support | 2017 |
| Wmsys Ltd | Real estate | 2015 |
| Wodehouse Management Limited | Hospitality | 2003 |
| Wokingham Car Centre Ltd | Wholesale & retail | 2018 |
| Wokingham Road Motor Company (Reading) Limited | Wholesale & retail | 1965 |
| Wolfpack Basketball Club Limited | Arts & recreation | 2023 |
| Women’S Health Solutions Ltd | Health & social care | 2024 |
| Wonder Events by Paula Ltd | Hospitality | 2021 |
| Wonderful Scientific Limited | Professional & scientific | 2021 |
| Wonersh Cricket Club Limited | Arts & recreation | 2018 |
| Wonersh Football Club Limited | Arts & recreation | 2026 |
| Wonham Way Residents Association Limited | Households | 2018 |
| Wood and Stone Ltd | Construction | 2005 |
| Wood&Ham Ltd | Arts & recreation | 2019 |
| Woodbridge Catering Ltd | Hospitality | 2023 |
| Woodbridge Hill (Aldershot Road) Management Co Ltd | Households | 2019 |
| Woodbridge Hill Road Management Company Limited | Households | 2005 |
| Woodend Removals Limited | Administrative & support | 2022 |
| Woodford Family Funeral Service Ltd | Other services | 2016 |
| Woodham Oak Limited | Construction | 2017 |
| Woodham Sandwich Bar Limited | Hospitality | 2005 |
| Woodhill Farming Limited | Agriculture & fishing | 2019 |
| Woodlands Farm Nursery and Reclamation Limited | Wholesale & retail | 2023 |
| Woodlands Management (Normandy) Limited | Real estate | 2010 |
| Woodlands Walk Residents Limited | Households | 2020 |
| Woodrough Residents Association Limited | Households | 1994 |
| Woods Home Developments LLP | | 2024 |
| Woodview (Station Road) Management Company Limited | Households | 2018 |
| Woodward Commercial Limited | Other services | 2026 |
| Woodward Menswear Limited | Wholesale & retail | 2010 |
| Woolfson Property (South West) Ltd | Real estate | 2021 |
| Woolpit Farm LLP | | 2026 |
| Word Associates Ltd | Information & communication | 2021 |
| Wordswork Publishing Limited | Information & communication | 2023 |
| Work With Impact Ltd | Professional & scientific | 2020 |
| Working Health Consulting Ltd | Health & social care | 2007 |
| Workplace Vision Limited | Information & communication | 2024 |
| World at Your Feet Communications Ltd | Professional & scientific | 2014 |
| World GP Bike Legends Limited | Arts & recreation | 2014 |
| World of Optics Ltd | Wholesale & retail | 2026 |
| World Spectrum Trading Limited | Wholesale & retail | 1979 |
| World Superbike Legends Limited | Arts & recreation | 2014 |
| World Words Ltd | Information & communication | 2017 |
| Worm Feature Film Ltd | Information & communication | 2014 |
| Worple Properties Limited | Construction | 1997 |
| Worplesdon Early Years LLP | | 2016 |
| Worplesdon Tennis Club Limited | Arts & recreation | 2003 |
| Worth Renovations Limited | Construction | 2023 |
| Wren Marketing Limited | Professional & scientific | 2015 |
| Wright Invest Ltd | Real estate | 2023 |
| Wright's Piano Services Limited | Households | 2003 |
| Write ME a Song Limited | Information & communication | 2019 |
| Wrld Creative Ltd | Professional & scientific | 2025 |
| WSB Management Consultancy Ltd | Professional & scientific | 2010 |
| WSQ Investments Ltd | Arts & recreation | 2019 |
| WSY Service Ltd | Transport & logistics | 2025 |
| Wtxaf | Financial services | 2020 |
| Wyattbets Limited | Information & communication | 2024 |
| Wycliffe Buildings 1894 Ltd | Other services | 2007 |
| Wycliffe Projects Ltd | Manufacturing | 2023 |
| Wyphurst Holdings Ltd | Real estate | 2026 |
| Wyre Consulting Ltd | Professional & scientific | 2024 |
| Wysch Ltd | Financial services | 2022 |
| Wysch Productions Limited | Arts & recreation | 2014 |
| Wyvernware Limited | Information & communication | 2010 |
| X-Edit Limited | Information & communication | 2002 |
| X26 Consulting Limited | Administrative & support | 2019 |
| Xelante Limited | Health & social care | 2010 |
| Xendo Technologies Ltd | Information & communication | 2023 |
| Xentrix Limited | Financial services | 2025 |
| Xeus Limited | Information & communication | 2013 |
| Xground Holdings Ltd | Hospitality | 2020 |
| Xi-Tech Ltd | Professional & scientific | 2009 |
| Xliq Education Ltd | Information & communication | 2025 |
| Xodus Cycles Limited | Wholesale & retail | 2012 |
| Xpert Utilities Consultants Ltd | Energy | 2023 |