| Wellington 1895 Limited | Wholesale & retail | 2023 |
| Wellington Bearwood Limited | Professional & scientific | 2019 |
| Wellington Court (Reading) Management Company Limited | Households | 2006 |
| Wellington Road Management Limited | Households | 2024 |
| Wellness Ventures Limited | Professional & scientific | 2020 |
| Wellwork Group Limited | Professional & scientific | 2026 |
| Welsher Holdings Ltd | Real estate | 2021 |
| Wen-Parker Logistics (UK) Limited | Transport & logistics | 2015 |
| Wentworth Court Block 3 (Newbury) RTM Company Limited | Households | 2012 |
| Wentworth Hall Management Company Limited | Real estate | 2022 |
| Wentworth Media Group Ltd | Professional & scientific | 2022 |
| Wentworth Moto Limited | Wholesale & retail | 2022 |
| Wentworth Moving Services Limited | Transport & logistics | 2025 |
| Wescott Rushey Consulting Ltd | Financial services | 2023 |
| Wessex Advanced Switching Products Limited | Manufacturing | 1999 |
| West Berks Plumbing and Heating Limited | Construction | 2009 |
| West Court (Sonning) Management Company Limited | Households | 1994 |
| West Hill Properties Limited | Households | 2018 |
| Westbourne Banstock Limited | Construction | 2024 |
| Westbourne Design Limited | Professional & scientific | 2017 |
| Westbourne Group Investments Ltd | Real estate | 2023 |
| Westbourne Group Limited | Households | 2016 |
| Westbrook Court (Winnersh) Management Company Limited | Households | 2004 |
| Westbrook Property Management Limited | Real estate | 2024 |
| Western Pixel Limited | Information & communication | 2007 |
| Westhorpe Estate Management Company Limited | Real estate | 2024 |
| Westside Lighting (UK) Limited | Professional & scientific | 2018 |
| What's on High Wycombe Ltd | Information & communication | 2025 |
| WHC Properties Ltd | Real estate | 2023 |
| Wheels 4 YOU Limited | Wholesale & retail | 2024 |
| Whelehan Construction Ltd | Construction | 2002 |
| Whipcott Getaways Limited | Hospitality | 2021 |
| Whitbread Consulting Limited | Professional & scientific | 2016 |
| White Star Records Limited | Information & communication | 2014 |
| White's Wood and Works Ltd | Construction | 2024 |
| Whitebird Real Estate Limited | Real estate | 2022 |
| Whitebriar Ltd | Information & communication | 2013 |
| Whitebriar Property Limited | Real estate | 2019 |
| Whitehall Close Residents Association Limited | Hospitality | 1990 |
| Whitley Wood Road Management Company Limited | Households | 2004 |
| Whitling Decorators Limited | Construction | 2026 |
| Whiz Accounting Services Limited | Professional & scientific | 2012 |
| Wholesome Hands Ltd | Wholesale & retail | 2022 |
| WHZ Property Investment Ltd | Real estate | 2025 |
| Wick Hill Property Limited | Real estate | 2017 |
| Wick Hill Residents Limited | Households | 2004 |
| Wiffle Films Limited | Information & communication | 2016 |
| Wilbury Lodge Management Company Limited | Households | 2005 |
| Wild Acres Rest Home Limited | Health & social care | 2010 |
| Wild Dose Ltd | Manufacturing | 2021 |
| Wild Wood Gardening Ltd | Administrative & support | 2021 |
| Wilkins Electrical Limited | Construction | 2023 |
| Willcorp Creative Limited | Information & communication | 2019 |
| William Michael Ltd | Financial services | 2026 |
| Williams Event Group Ltd | Administrative & support | 2026 |
| Williamscare and Domestic Services Limited | Health & social care | 2014 |
| Willow Systems Consultancy Ltd | Professional & scientific | 2025 |
| Wills Tax & Trusts Ltd | Financial services | 2017 |
| Willys Bottles Ltd | Wholesale & retail | 2025 |
| Willys Wallets Ltd | Wholesale & retail | 2025 |
| Wilson Road Limited | Households | 1991 |
| Wiltshire Place 33-40 RTM Company Limited | Households | 2016 |
| Wiltshire Place 9-14 RTM Company Limited | Households | 2016 |
| Winchfield Engineering Limited | Manufacturing | 2009 |
| Wind Rider Ltd | Construction | 2023 |
| Windmill Farm Equestrian Centre Limited | Agriculture & fishing | 2023 |
| Windsor Court (Sunningdale) Limited | Real estate | 1964 |
| Wingit Ltd | Information & communication | 2025 |
| Wingman Partners Limited | Professional & scientific | 2022 |
| Winkelmann Associates Ltd | Hospitality | 2010 |
| Winner Traders Limited | Extraterritorial | 2025 |
| Winnersh Catering Limited | Hospitality | 2018 |
| Winnersh Computers Ltd | Information & communication | 2014 |
| Winnersh Garage Services Limited | Wholesale & retail | 2025 |
| Winnersh MOT Centre Limited | Wholesale & retail | 2025 |
| Winnersh Motors Limited | Wholesale & retail | 2017 |
| Winnersh Turkish Barbers Limited | Other services | 2023 |
| Winnersh Tyres Limited | Wholesale & retail | 2013 |
| Winslow Estates Limited | Real estate | 2023 |
| Wireless Safe Car Ltd | Wholesale & retail | 2014 |
| Wise Creations Ltd | Manufacturing | 2022 |
| Wise Distribution Ltd | Information & communication | 2018 |
| Wise Eagle London Limited | Education | 2023 |
| Witteberg Solutions Limited | Professional & scientific | 2023 |
| Wixenford Ltd | Real estate | 2021 |
| WJW Property Management Ltd | Households | 2017 |
| WKD Hair Ltd | Other services | 2003 |
| Wocca Hospitality Ltd | Hospitality | 2019 |
| Wocca Limited | Professional & scientific | 2021 |
| Wokingham & District Citizens Advice Bureau | Information & communication | 1993 |
| Wokingham Barbers Holding Ltd | Financial services | 2025 |
| Wokingham Barbers Ltd | Other services | 2019 |
| Wokingham Business Centre 2 Limited | Real estate | 2011 |
| Wokingham Carpentry Limited | Construction | 2017 |
| Wokingham Decor Limited | Wholesale & retail | 2022 |
| Wokingham DRY Cleaning Ltd | Other services | 2012 |
| Wokingham Electrical and Lighting Supplies Ltd | Wholesale & retail | 2004 |
| Wokingham Film Society CIC | Arts & recreation | 2013 |
| Wokingham Garden Limited | Hospitality | 2018 |
| Wokingham Glazing Ltd | Construction | 2021 |