| Whitmead Limited | Professional & scientific | 2018 |
| WHL Communications Limited | Professional & scientific | 2010 |
| Wide River Limited | Information & communication | 2011 |
| Widera Servicing Limited | Health & social care | 2019 |
| Wife Creative Limited | Professional & scientific | 2018 |
| Wilcan Motor Company Limited | Wholesale & retail | 2009 |
| Wild Hart Group Ltd | Other services | 2026 |
| Wildbrooks Consulting Limited | Professional & scientific | 2022 |
| Wilkinson Productions Limited | Information & communication | 2000 |
| Will Leighton Property Limited | Real estate | 2022 |
| Willard Price Literary Management Limited | Information & communication | 2007 |
| Willets Heath Limited | Households | 2010 |
| William Hale Fire & Security Limited | Administrative & support | 2013 |
| Williams Clark Investments Limited | Real estate | 2022 |
| Willis Works Limited | Construction | 2025 |
| Willow and IVY Limited | Construction | 2024 |
| Wilson Landscaping Supplies Limited | Other services | 2019 |
| Wilton Biotechnologies Limited | Professional & scientific | 2013 |
| Wilton Hollow Beaconsfield Residents Management Company Ltd | Households | 2021 |
| Wilton Optical Ltd | Wholesale & retail | 2019 |
| Wiltshire & Sons Farnham Limited | Wholesale & retail | 2008 |
| Wimdar Consulting Ltd | Professional & scientific | 2025 |
| Winchelsea Capital Limited | Real estate | 2003 |
| Winchelsea Otter LLP | | 2019 |
| Window Business Limited | Construction | 2011 |
| Windows & Doors Berkshire Limited | Manufacturing | 2024 |
| Windsor Telecom Group Limited | Information & communication | 2026 |
| Windyridge Property Services Limited | Real estate | 1998 |
| Wingate Court (Aldershot) Management Co. Limited | Households | 1996 |
| Winprovit Limited | Information & communication | 2020 |
| Winterdown Coffee Limited | Wholesale & retail | 2021 |
| Winterhill Property Developments Ltd | Construction | 2019 |
| Winterluxe Ltd | Construction | 2020 |
| Winterton Group Limited | Real estate | 2021 |
| Wiseco Consulting Limited | Information & communication | 2025 |
| Wisei Accountants Ltd | Professional & scientific | 2019 |
| Wisteria Capital Ltd | Administrative & support | 2020 |
| With Dominic Ltd. | Professional & scientific | 2012 |
| Without a Paddle Management Ltd | Professional & scientific | 2020 |
| WJ Swansborough Garden Services Limited | Administrative & support | 2011 |
| WJO Group Ltd | Real estate | 2026 |
| WJO Homes Ltd | Real estate | 2025 |
| WJO Stays Ltd | Administrative & support | 2025 |
| Wjoproperty Ltd | Real estate | 2024 |
| Woah Mama Ltd | Arts & recreation | 2021 |
| Wolroad Property Management Ltd | Households | 2019 |
| Wonersh Interiors Ltd | Wholesale & retail | 2012 |
| Woodbarn Residents Association Limited(The) | Households | 1984 |
| Woodbox Ltd | Transport & logistics | 2020 |
| Woodfall Ltd | Information & communication | 2015 |
| Woodfield Court Woodley (M.C.) Limited | Households | 2010 |
| Woodland View (Warlingham) Management Company Limited | Households | 2011 |
| Woodlands EPC Consultants Ltd | Professional & scientific | 2025 |
| Woodruff Biopharm Limited | Professional & scientific | 2014 |
| Woodstock Autos and Garage Ltd | Wholesale & retail | 2026 |
| Woodview Associates Limited | Professional & scientific | 2011 |
| Wordbox Central Ltd | Professional & scientific | 2020 |
| Wordsmith Ventures Ltd | Professional & scientific | 2025 |
| Workonomics Ltd | Administrative & support | 2017 |
| Workshop 89 Limited | Wholesale & retail | 2024 |
| Workwise UK Limited | Professional & scientific | 2005 |
| World Bridge Trading Ltd | Wholesale & retail | 2025 |
| World Dance Federation Ltd | Arts & recreation | 2025 |
| World Dance Ltd | Arts & recreation | 2025 |
| World Marketing International Ltd | Wholesale & retail | 2019 |
| Worldham Hill Management Limited | Real estate | 2004 |
| Worldwide Sports Events Ltd. | Professional & scientific | 2011 |
| Wowlifeservices Ltd | Other services | 2017 |
| Woyc China Limited | Administrative & support | 2015 |
| Wratten SA Limited | Real estate | 2022 |
| Wrecclesham Estates Ltd | Construction | 2024 |
| Wrecclesham Farm Cottages Management Company Limited | Households | 2009 |
| Wrights Lion Brewery Limited | Wholesale & retail | 2015 |
| Wrnk Limited | Transport & logistics | 2025 |
| Wssc (Holdings) Limited | Real estate | 2019 |
| WTL EOT Limited | Other services | 2019 |
| Wuyw Ltd | Financial services | 2025 |
| Www.Sashwindowspecialist.Co.Uk Ltd | Manufacturing | 2006 |
| WYE Valley Investments LLP | | 2016 |
| Wylie-Cacace Ltd | Hospitality | 2025 |
| Wynd Studios Limited | Education | 2025 |
| Wyndham Gardens (Wallingford) Management Company Limited | Households | 1988 |
| Wyvern Place Limited | Real estate | 2013 |
| X Events Limited | Wholesale & retail | 2020 |
| Xcience Ltd | Professional & scientific | 2015 |
| Xensol Limited | Information & communication | 2020 |
| Xentor Solutions Limited | Information & communication | 2002 |
| Xitenys Limited | Information & communication | 2017 |
| XJ Engineering Limited | Wholesale & retail | 2003 |
| Y Knot Group Ltd | Extraterritorial | 2016 |
| Yada Yada Management Ltd | Arts & recreation | 2024 |
| Yada Yada Records Limited | Arts & recreation | 2019 |
| Yalden Consulting Ltd | Professional & scientific | 2026 |
| Yamba Ltd | Extraterritorial | 2006 |
| Yannai Tobi Fine European Cars Ltd | Wholesale & retail | 2012 |
| Yates & Co (Accountants) Limited | Professional & scientific | 2012 |
| Yeah Sick Studios Ltd | Information & communication | 2026 |
| Yelland Financial Associates Ltd | Professional & scientific | 2020 |
| Yellodoor Limited | Wholesale & retail | 2016 |
| Yellow Skies Consulting Ltd | Professional & scientific | 2025 |