| Wirral Oral Surgery Ltd | Health & social care | 2021 |
| Wirral PAT Ltd. | Professional & scientific | 2008 |
| Wirral Peninsula Care Ltd | Health & social care | 2025 |
| Wirral Peninsula Construction Ltd | Construction | 2016 |
| Wirral Pet Nanny Limited | Agriculture & fishing | 2011 |
| Wirral Photography Ltd | Professional & scientific | 2016 |
| Wirral Physiotherapy Ltd | Health & social care | 2026 |
| Wirral Powder Coating Ltd | Construction | 2026 |
| Wirral Project (FM) Ltd | Administrative & support | 2025 |
| Wirral Project Planning Ltd | Professional & scientific | 2011 |
| Wirral Projects Ltd | Information & communication | 2019 |
| Wirral Properties Ltd | Administrative & support | 2021 |
| Wirral Property 1 LLP | | 2019 |
| Wirral Property Maintenance Ltd | Real estate | 2024 |
| Wirral PT Bromborough Ltd | Arts & recreation | 2024 |
| Wirral PT Ltd | Arts & recreation | 2019 |
| Wirral PT Training Ltd | Education | 2024 |
| Wirral Refresh Aesthetics Limited | Health & social care | 2018 |
| Wirral Rentals Ltd | Real estate | 2022 |
| Wirral Sail & Tent Limited | Manufacturing | 2005 |
| Wirral Sensory Services Limited | Professional & scientific | 1997 |
| Wirral Shore Psychology Limited | Education | 2024 |
| Wirral Skin and Laser Ltd | Other services | 2025 |
| Wirral Skip Hire Limited | Extraterritorial | 2011 |
| Wirral Skips Limited | Water & waste | 2020 |
| Wirral Specialist Dental Referrals Ltd | Health & social care | 2021 |
| Wirral Specialist Projects Limited | Construction | 2014 |
| Wirral Support Consultant Ltd | Health & social care | 2019 |
| Wirral Tandoori Restaurant Limited | Hospitality | 2009 |
| Wirral Textile Motifs Limited | Manufacturing | 1999 |
| Wirral Therapy Services Ltd | Other services | 2020 |
| Wirral Trade Centre Limited | Construction | 2022 |
| Wirral Travel Clinic Limited | Health & social care | 2023 |
| Wirral Tree Care Ltd. | Agriculture & fishing | 2016 |
| Wirral Turkish Barber 2 Ltd | Other services | 2024 |
| Wirral Tutors Network Limited | Education | 2013 |
| Wirral Tyres & Commercial Limited | Wholesale & retail | 2006 |
| Wirral View Associates Ltd | Professional & scientific | 2013 |
| Wirral Vikings CIC | Education | 2023 |
| Wirral Warcon Ltd | Administrative & support | 2025 |
| Wirral Water Works Group Ltd | Water & waste | 2022 |
| Wirral Water Works Limited | Water & waste | 2017 |
| Wirral Webs Ltd | Other services | 2022 |
| Wirral Wetrooms Limited | Construction | 2008 |
| Wirral Wheelz Ltd | Wholesale & retail | 2025 |
| Wirral Wise Tutoring Ltd | Education | 2024 |
| Wirral Women & Childrens' AID | Hospitality | 2004 |
| Wirral Yoga Ltd | Arts & recreation | 2019 |
| Wirral Young Engineers Ltd | Education | 2025 |
| Wirral(Nw) Renewables Limited | Construction | 2023 |
| Wirralmix Ltd | Manufacturing | 2018 |
| Wirralpc Limited | Information & communication | 2016 |
| Wirrals Beauty and Wellness Clinic Ltd | Other services | 2025 |
| Wirrals Waffles Limited | Hospitality | 2025 |
| Wirralworx Property Solutions Ltd | Construction | 2025 |
| Wise Consultants Ltd | Administrative & support | 2022 |
| Wise Insight Psychotherapies Ltd | Health & social care | 2024 |
| Wishniwell Ltd | Hospitality | 2021 |
| Wishtrac House Limited | Information & communication | 2008 |
| Wits END Developments Ltd | Construction | 2022 |
| Wivim Ltd | Professional & scientific | 2021 |
| Wizardtec Ltd | Information & communication | 2026 |
| Wizcot Ltd | Professional & scientific | 2022 |
| Wjarmotrades Limited | Wholesale & retail | 2024 |
| WK MM Ltd | Wholesale & retail | 2024 |
| WKM Properties Ltd | Real estate | 2023 |
| Wkrs Pension Scheme Trustee Limited | Financial services | 2015 |
| Wkts Cricket Company Ltd | Wholesale & retail | 2025 |
| WM Rollings Limited | Extraterritorial | 1991 |
| WMC Communications Ltd | Information & communication | 2019 |
| Wmmna Ltd | Arts & recreation | 2025 |
| WN Handyman Solutions Ltd | Construction | 2026 |
| WN People Solutions Ltd | Professional & scientific | 2025 |
| Wojtysiak Transport Services Limited | Transport & logistics | 2019 |
| Wolfe NW Ltd | Agriculture & fishing | 2021 |
| Wolmanstock Ltd | Information & communication | 2012 |
| Women of the Wirral CIC | Education | 2026 |
| Wonderland Early Years Day Care Ltd | Health & social care | 2025 |
| Wonderland Play and Parties Ltd | Other services | 2023 |
| Wood Apartments Ltd | Real estate | 2025 |
| Woodbourn Consultancy Ltd | Professional & scientific | 2024 |
| Woodbury Park Developments Ltd | Real estate | 2020 |
| Woodchurch High School | Education | 2011 |
| Woodchurch High Sports Complex Ltd | Arts & recreation | 2012 |
| Woodcroft Property Limited | Real estate | 2021 |
| Woodedge Estates Limited | Real estate | 2006 |
| Woods of Wirral Estates Ltd | Real estate | 2016 |
| Woods Shopfitting Limited | Construction | 2024 |
| Woodside Drive in Limited | Arts & recreation | 2021 |
| Woodworkout Ltd | Agriculture & fishing | 2015 |
| Woodworx Recycling Ltd | Water & waste | 2024 |
| Woodys Woodwork & Salvage Ltd | Manufacturing | 2022 |
| Woof Style Ltd | Other services | 2012 |
| Woofopoly Ltd | Real estate | 2020 |
| Woolley Homes Ltd | Real estate | 2023 |
| Wordscape Ltd. | Information & communication | 2009 |
| Work With Vista Limited | Administrative & support | 2018 |
| Worklife Medical Ltd | Health & social care | 2025 |
| Workout Liverpool Limited | Arts & recreation | 2017 |
| World in a Point Ltd | Information & communication | 2023 |