| Windows 2 Patios Ltd | Administrative & support | 2022 |
| Wingard Court Management Company (W.S.M.) Limited | Households | 1986 |
| Wings & Springs Ltd | Hospitality | 2025 |
| Winnie's Bakery Limited | Manufacturing | 2006 |
| Winnies N Woofs Ltd | Wholesale & retail | 2025 |
| Winterstoke Decorators Supply Limited | Wholesale & retail | 1976 |
| Winterstoke Warehousing Limited | Transport & logistics | 2003 |
| Wired Weston Ltd | Construction | 2021 |
| Wirley Ltd | Information & communication | 2021 |
| Wisebuys (MW) Limited | Wholesale & retail | 2023 |
| Wisteria Works Limited | Real estate | 2019 |
| Withcap Limited | Professional & scientific | 2018 |
| Withers Leasing Limited | Administrative & support | 2009 |
| Witmart Limited | Professional & scientific | 2016 |
| WLP Northampton Ltd | Education | 2025 |
| WML Properties Ltd | Real estate | 2023 |
| WOK 168 Limited | Hospitality | 2023 |
| Woodborough Court (Management) Limited | Households | 1984 |
| Wooden Lion Construction Ltd | Construction | 2018 |
| Woodland IT Solutions Limited | Information & communication | 2007 |
| Woodlands Court (Shirehampton) Limited | Households | 1990 |
| Woodpecker Services Cheddar Limited | Construction | 2017 |
| Woodside Court Weston-Super-Mare Maintenance Company Limited | Households | 1974 |
| Woodspring Taxis Ltd | Extraterritorial | 2013 |
| Woodspring Technology Ltd | Administrative & support | 2016 |
| Woodspringtech Limited | Information & communication | 2021 |
| Words Into Wealth Limited | Administrative & support | 2023 |
| Work Solutions Electrical Ltd | Manufacturing | 2014 |
| World Harvest Green Ltd | Wholesale & retail | 2024 |
| Worle Family Shop Limited | Wholesale & retail | 2015 |
| Worle Florists Ltd | Wholesale & retail | 2024 |
| Worle MOT Centre Limited | Wholesale & retail | 2016 |
| Worle Spice Ltd | Hospitality | 2025 |
| Worle Supermarket Limited | Wholesale & retail | 2024 |
| Worlebury Garage Limited | Wholesale & retail | 2007 |
| Worlebury RTM Company Limited | Households | 2011 |
| Worlebury Willows Preschool Limited | Education | 2017 |
| WPS Special Projects Ltd | Construction | 2017 |
| Wrfc Canteen Ltd | Hospitality | 2018 |
| Wright Left Productions Limited | Administrative & support | 2024 |
| Wrington Redhill Football Club Limited | Arts & recreation | 2014 |
| WRS Motor Factors Limited | Wholesale & retail | 2014 |
| Ws&D Ltd | Wholesale & retail | 2026 |
| WSH Ltd | Administrative & support | 2025 |
| WSM Auto Care Ltd | Wholesale & retail | 2025 |
| WSM Carnival Limited | Other services | 1999 |
| WSM Catering Services Ltd | Hospitality | 2019 |
| WSM Cricket Club Events Limited | Arts & recreation | 2017 |
| WSM Cricket Club House Company Limited | Arts & recreation | 2017 |
| WSM Fasteners Limited | Wholesale & retail | 2012 |
| WSM Fire Protection Limited | Public administration | 2016 |
| WSM Grove Park Ltd | Hospitality | 2025 |
| WSM Hand Car Wash Ltd | Administrative & support | 2025 |
| WSM Investment Ltd | Real estate | 2025 |
| WSM Properties Ltd | Construction | 2023 |
| WSM Property Ltd | Real estate | 2019 |
| WSM Renewables Ltd | Professional & scientific | 2025 |
| WSM Ultrasound Limited | Health & social care | 2023 |
| WTG Landscaping Limited | Professional & scientific | 2020 |
| Wwpdirect Limited | Wholesale & retail | 2009 |
| Wylde Interior Architecture Limited | Professional & scientific | 2003 |
| Wyndham Developments Limited | Extraterritorial | 2012 |
| Wyvern Mews Limited | Households | 2000 |
| Wzland Ltd | Real estate | 2019 |
| X Fragrance Limited | Extraterritorial | 2022 |
| Xenint Ltd | Other services | 2014 |
| XI Smash Ltd | Other services | 2022 |
| Xmoor-Rox Ltd | Hospitality | 2023 |
| Xptise Limited | Professional & scientific | 2006 |
| Xylon Carpentry Ltd | Construction | 2020 |
| XYZ Something Limited | Information & communication | 2010 |
| Yacht Island Design Limited | Professional & scientific | 2010 |
| YAS Barber Ltd | Other services | 2025 |
| YAY! Marketing Limited | Professional & scientific | 2025 |
| Ye's Services Ltd. | Administrative & support | 2018 |
| YEO Court Management Company Limited | Households | 1990 |
| Yeoman (South West) Ltd | Construction | 2004 |
| Yeoman Care Limited | Health & social care | 1995 |
| YER WAN Ltd | Information & communication | 2011 |
| YEW Tree Farm Developments Limited | Real estate | 2014 |
| Yewtree Solutions Ltd | Public administration | 2016 |
| Yidatong Limited | Hospitality | 2025 |
| YIS Ventures Limited | Professional & scientific | 2025 |
| Yoga by Nature Ltd | Arts & recreation | 2013 |
| Yottsu Properties Ltd | Real estate | 2025 |
| Young Project Services U.K. Limited | Professional & scientific | 2016 |
| Your Houseplants Ltd | Wholesale & retail | 2020 |
| Yuvigi Ltd | Transport & logistics | 2024 |
| Zafty Environmental Ltd | Professional & scientific | 2019 |
| Zaidm.Design Ltd | Professional & scientific | 2020 |
| Zaman Cosmetics Ltd | Wholesale & retail | 2025 |
| Zeal Homecare Ltd | Other services | 2023 |
| Zerrix Software Limited | Information & communication | 2023 |
| Zeta 16 Limited | Real estate | 2020 |
| Zeta 59 Limited | Real estate | 2019 |
| Zeta Housing Limited | Real estate | 2016 |
| Zetos Logistics Ltd | Wholesale & retail | 2022 |
| Zillionaires Club Ltd | Wholesale & retail | 2023 |
| Zion Housing & Estate Ltd | Real estate | 2023 |
| Zion Place Ltd | Administrative & support | 2025 |