| Wallace Greenwood & Sons Limited | Agriculture & fishing | 1959 |
| Wallcoverings on the Net.Co.Uk Ltd | Wholesale & retail | 2009 |
| Wallpaper John Ltd | Construction | 2010 |
| Walmayne Motors Ltd | Wholesale & retail | 2003 |
| Walsh Investments Limited | Wholesale & retail | 2000 |
| Walton Motors Limited | Wholesale & retail | 1986 |
| Wantines Consulting Firm Ltd | Administrative & support | 2020 |
| Wantmanagement Limited | Professional & scientific | 2026 |
| Warbury Properties Ltd | Construction | 2025 |
| Warefields Ltd | Wholesale & retail | 2014 |
| Warranty Extra Limited | Health & social care | 2014 |
| Warren Croft Management Company Limited | Households | 2001 |
| Warren Homes NW Ltd | Construction | 2023 |
| Warren Property Developments Ltd | Real estate | 2013 |
| Warren Trading Group Limited | Manufacturing | 2024 |
| Warriner & Co Limited | Financial services | 2010 |
| Warriner Capital Limited | Financial services | 2016 |
| Washington Court Management (Southport) Limited | Hospitality | 1990 |
| Waste Advice Services Limited | Professional & scientific | 2020 |
| Watag Ltd | Other services | 2024 |
| Waterloo Preschool Ltd | Health & social care | 2025 |
| Waterside Lodge Southport Limited | Arts & recreation | 2003 |
| Watts Law Group Limited | Professional & scientific | 2013 |
| Waveform Labs Ltd | Information & communication | 2025 |
| Waxx Ltd | Wholesale & retail | 2019 |
| Way Travel Ltd | Administrative & support | 2014 |
| Wayfarers Arcade Ltd | Real estate | 2025 |
| Wayland Environmental Limited | Manufacturing | 2014 |
| Wayne Antrobus Limited | Construction | 2025 |
| WE ARE Numinous Limited | Wholesale & retail | 2025 |
| WE Care Living Limited | Health & social care | 2023 |
| WE Source ANY Vehicle Southport Limited | Other services | 2025 |
| Wealth UK (Financial) Ltd | Financial services | 2009 |
| Wearhaus Ltd | Manufacturing | 2025 |
| Weber Sensors Limited | Wholesale & retail | 1984 |
| Wedo Ltd | Construction | 2014 |
| Welbeck Road Management Limited | Households | 2006 |
| Weld Rentals Ltd | Hospitality | 2025 |
| Well Arty | Arts & recreation | 2013 |
| Wellfield Foods Limited | Hospitality | 2023 |
| Wellie Hotel Ltd Limited | Hospitality | 2017 |
| Wellington Healthcare (Arden) Ltd | Health & social care | 2015 |
| Wellington Healthcare Limited | Health & social care | 2007 |
| Wellington Land (Stainer) Ltd | Real estate | 2016 |
| Wellstern Gateways Limited | Hospitality | 2023 |
| Wennington Car Limited | Administrative & support | 1999 |
| Wentletrap Limited | Real estate | 2024 |
| Wentworth Residents Association Limited | Households | 1988 |
| Wepen Solutions Ltd | Transport & logistics | 2019 |
| Wesbay Limited | Wholesale & retail | 2009 |
| West Cliff Residents' Association Limited | Households | 1974 |
| West Coast Brands Limited | Professional & scientific | 2008 |
| West Coast Film Limited | Professional & scientific | 2024 |
| West Coast Glass Limited | Construction | 1997 |
| West Coast Laundry Ltd | Other services | 2024 |
| West Coast OFF Road Centre Limited | Administrative & support | 2006 |
| West Dene (Southport) RTM Company Ltd | Real estate | 2012 |
| West Dune Properties Limited | Hospitality | 2016 |
| West Dune Strategy Ltd | Professional & scientific | 2016 |
| West Hill (Southport) RTM Company Limited | Households | 2014 |
| West Lancs Caravans Limited | Wholesale & retail | 2022 |
| West Lancs Garage Doors Limited | Construction | 2006 |
| West Yorkshire Civil Engineering Limited | Construction | 2024 |
| WEST123 Limited | Hospitality | 2025 |
| Westbourne Court (Southport) Management RTM Company Limited | Administrative & support | 2015 |
| Westbridge Facilities Management Ltd | Real estate | 2012 |
| Westcliffe Apartments Ltd | Hospitality | 2019 |
| Westcliffe Court Management (Birkdale) Limited | Households | 2001 |
| Westcoast Chemicals Limited | Wholesale & retail | 2004 |
| Westcoast Human Resources Limited | Professional & scientific | 2014 |
| Westcoast Workwear Ltd | Wholesale & retail | 2020 |
| Westdene (Southport) Management Company Limited | Households | 2004 |
| Westhaven Management Company Limited | Households | 1990 |
| Westlands Property (Southport) Management Limited | Households | 2022 |
| Westleigh Court Management Company (Southport) Limited | Households | 2003 |
| Westminster Road Limited | Real estate | 2018 |
| Westmoreland Commercial Services Ltd | Professional & scientific | 2026 |
| Westrare House RTM Company Limited | Households | 2020 |
| Westridge Court (Management) Limited | Professional & scientific | 1989 |
| Westview Weld Road Residents Limited | Households | 2025 |
| WFM Engineering Limited | Professional & scientific | 2026 |
| WG Capital Limited | Professional & scientific | 2020 |
| WGR Caravans Limited | Hospitality | 2022 |
| Whalen Plumbing & GAS Ltd | Construction | 2025 |
| Wheel Pro Ltd | Wholesale & retail | 2013 |
| Whistlestop Eats Ltd | Hospitality | 2023 |
| Whiston Developments Ltd | Households | 2023 |
| White Gables Research & Development Engineers Limited | Manufacturing | 1987 |
| White House Commercial and Residential Ltd | Real estate | 2025 |
| White Leisure Limited | Arts & recreation | 1983 |
| White Leisure Properties Limited | Real estate | 2016 |
| Whitewest Estates Ltd | Real estate | 2005 |
| Whitfield & Stott Ltd | Wholesale & retail | 2025 |
| Whitfields Formby Limited | Professional & scientific | 2010 |
| Whittaker Textiles Limited | Wholesale & retail | 2008 |
| Whittle Partnerships Ltd | Education | 2005 |
| Wholesale Flavours Ltd | Wholesale & retail | 2019 |
| Wigan Fish and Chips Ltd | Hospitality | 2025 |
| Wiggle and Grow Children’S Therapy Limited | Health & social care | 2026 |
| Wigmore Legal Limited | Professional & scientific | 2016 |