| Wholesale Coffee Company and Machines Limited | Wholesale & retail | 2012 |
| Wholesale Energy Limited | Wholesale & retail | 2004 |
| Wholey Investments Limited | Real estate | 2017 |
| Widnes Wild Academy Ltd | Arts & recreation | 2025 |
| Wild Paws Agility Ltd | Other services | 2020 |
| Wild Paws Events Ltd | Other services | 2021 |
| Wild River Catering Ltd | Hospitality | 2025 |
| Wild Sales Solutions Ltd | Wholesale & retail | 2025 |
| WILD1NG Company Limited | Wholesale & retail | 2020 |
| Wilding Investments Ltd | Real estate | 2025 |
| Wilding Properties and Development Ltd | Real estate | 2021 |
| Wildish Holdings Limited | Financial services | 2020 |
| Wildshark Limited | Information & communication | 2012 |
| Wildyberrys Ltd | Hospitality | 2026 |
| Wiley’S Finest UK Limited | Manufacturing | 2014 |
| Wilkinson Hotels Limited | Hospitality | 2004 |
| Will Wilson Limited | Professional & scientific | 2018 |
| William Eaves & Co. Limited | Construction | 1971 |
| William George Property Limited | Real estate | 2019 |
| Williams (ACC & Tax Services) Limited | Professional & scientific | 2008 |
| Williams-R Limited | Construction | 2021 |
| Williamson Wind Service Ltd | Information & communication | 2018 |
| Williamstone Consulting Ltd | Information & communication | 2012 |
| Willow Lodge Limited | Hospitality | 2018 |
| Willow Tree Electrical Ltd | Construction | 2025 |
| Willowmead Amenity Management Company Limited | Households | 1996 |
| Willows Estates NW Limited | Real estate | 2025 |
| Willows Hydrotherapy Ltd | Other services | 2014 |
| Willshaw Suites Ltd | Hospitality | 2023 |
| Willwise Ltd | Manufacturing | 2023 |
| Wilom Builds Ltd | Construction | 2025 |
| Wilom Ltd | Hospitality | 2021 |
| Wilrows Grounds Maintenance Limited | Administrative & support | 2009 |
| Wilson Mechanical Services Ltd | Construction | 2026 |
| Wilson Platt Ltd | Wholesale & retail | 2025 |
| Wilsons Lodge Ltd | Hospitality | 2023 |
| Wilverley Consultancy Ltd | Professional & scientific | 2018 |
| Wimbledon Court Flats Limited | Households | 1969 |
| Wimbourne Leisure Centre Limited | Arts & recreation | 2023 |
| WIN Aesthetics Ltd | Education | 2024 |
| Wind Access Inspection Ltd | Professional & scientific | 2024 |
| Wind and Tidal Solutions Limited | Administrative & support | 2017 |
| Windan Limited | Hospitality | 2013 |
| Windermere Fine Art Ltd | Arts & recreation | 2020 |
| Window FIX Installations Limited | Construction | 2016 |
| Window FIX Repairs Limited | Construction | 2016 |
| Windsong Estates Limited | Real estate | 2023 |
| Windsor House Hotel Ltd | Hospitality | 2026 |
| Windy Corner Catering Limited | Hospitality | 2008 |
| Wine Lodge Convenience Store Ltd | Wholesale & retail | 2026 |
| Wing and Willow Limited | Wholesale & retail | 2025 |
| Winmill Motors Ltd | Wholesale & retail | 2018 |
| Winners (Liverpool) Limited | Administrative & support | 2007 |
| Winning Juice Ltd | Professional & scientific | 2007 |
| Winnpenny Early Years Limited | Education | 2010 |
| Winnpenny Nursery Limited | Education | 2014 |
| Winstone Ltd | Wholesale & retail | 2005 |
| Winter Investments (Blackpool) Ltd | Real estate | 2016 |
| Winter Works Entertainment Ltd | Arts & recreation | 2019 |
| Wise R US Ltd | Professional & scientific | 2023 |
| Wishcom Limited | Information & communication | 2012 |
| Wishes Entertainments Limited | Arts & recreation | 2012 |
| Witherror.Com Ltd | Wholesale & retail | 2026 |
| Wizwoz Logistics Limited | Transport & logistics | 2022 |
| WJA Construction & Developments Ltd | Construction | 2026 |
| WLC Media Ltd | Professional & scientific | 2021 |
| WMR Ltd | Mining & quarrying | 2014 |
| WO Digital Limited | Information & communication | 2026 |
| WOK Spice Ltd | Hospitality | 2019 |
| Wolcom Ltd | Real estate | 2014 |
| Wolf Rock Limited | Wholesale & retail | 2016 |
| Wolfpac Logistics Limited | Transport & logistics | 2012 |
| Wolseys Inns Ltd | Wholesale & retail | 2025 |
| Woman's Touch Cleaning Services Blackpool Limited | Administrative & support | 2025 |
| WON Eleven Ltd | Professional & scientific | 2018 |
| Wonderland Adventures Ltd | Education | 2022 |
| Wood Cashmere Ltd | Information & communication | 2026 |
| Wood Close Management Company (Arnside) Limited | Households | 1998 |
| Woodbank Court Limited | Households | 2002 |
| Woodborough Group EMS Ltd | Wholesale & retail | 2025 |
| Woodcroft Holdings Ltd | Administrative & support | 2016 |
| Woodfield Hotel Ltd | Hospitality | 2026 |
| Woodhedz Ltd | Hospitality | 2021 |
| Woodhouse Academy of Theatre Arts Ltd | Arts & recreation | 2021 |
| Woodland Car Storage Ltd | Transport & logistics | 2026 |
| Woodlands Court Management Company Limited | Households | 1981 |
| Woodlands NW Ltd | Administrative & support | 2025 |
| Woodlands Pawfection Limited | Agriculture & fishing | 2025 |
| Woodroom N.W. Limited | Other services | 2019 |
| Woods Waste Limited | Water & waste | 1993 |
| Woodstock Lane Management Company Number One Limited | Households | 2006 |
| Woolfield Ltd | Wholesale & retail | 2019 |
| Work Unbranded Limited | Wholesale & retail | 2020 |
| World Hygiene Limited | Administrative & support | 2022 |
| World Sport Events Limited | Other services | 2017 |
| World Travel Lounge Retail Limited | Administrative & support | 2014 |
| Worldofchris Ltd | Information & communication | 2018 |
| Worlds Biggest Productions Limited | Arts & recreation | 2015 |
| Worldwide Tourism Services Limited | Administrative & support | 2025 |
| Worldwide-Show-Off Ltd | Information & communication | 2025 |