| Walkandwork Ltd | Wholesale & retail | 2024 |
| Walker Car Holdings Limited | Financial services | 2012 |
| Walker Car Sales Retail Limited | Wholesale & retail | 2012 |
| Walker Vehicle Sales Ltd | Wholesale & retail | 2018 |
| Walkers Vehicle Solutions Limited | Administrative & support | 2016 |
| Wallace Landscapes Surrey Limited | Administrative & support | 2021 |
| Waller Medical Services Limited | Health & social care | 2018 |
| Walrus Energy Limited | Construction | 2025 |
| Walter Investment Holdings Limited | Financial services | 2019 |
| Walters 8 Limited | Financial services | 2022 |
| Walters Holdco Limited | Financial services | 2026 |
| Walterscm Limited | Professional & scientific | 2026 |
| Walton Accountancy Limited | Professional & scientific | 2019 |
| Walton Dental Arts Limited | Health & social care | 2000 |
| Wandering Spirits Ltd | Hospitality | 2025 |
| Wang Applied Medical Limited | Health & social care | 2024 |
| Ware Clean Co Ltd | Administrative & support | 2025 |
| Warren Southsea Limited | Real estate | 2002 |
| Watchword Limited | Administrative & support | 2018 |
| Water Leak Location Services Limited | Water & waste | 2013 |
| Water Leak Location Solutions Limited | Extraterritorial | 2020 |
| Waterloo Productions Limited | Information & communication | 2008 |
| Waterloomilitaria.Com Ltd | Wholesale & retail | 2008 |
| Waterlooville (Portsmouth) Golf Club Limited(The) | Arts & recreation | 1945 |
| Waterlooville Boxing Club CIC | Education | 2020 |
| Waterlooville Builders Limited | Construction | 2025 |
| Waterlooville Business Association CIC | Other services | 2026 |
| Waterlooville Community Events CIC | Hospitality | 2024 |
| Waterlooville Crash Repair Centre Limited | Wholesale & retail | 2012 |
| Waterlooville Flower Centre Limited | Wholesale & retail | 2015 |
| Waterlooville Hand Car Wash Ltd | Wholesale & retail | 2025 |
| Waterlooville Painting Ltd | Construction | 2024 |
| Waterlooville TCG Ltd | Wholesale & retail | 2024 |
| Waterlooville Tyres Ltd | Wholesale & retail | 2021 |
| Waterlooville Windows Ltd | Construction | 2011 |
| Waterproofing Consultants Limited | Professional & scientific | 2024 |
| Waterside Gardens Waterlooville Management Company Limited | Real estate | 2012 |
| Waterworth Plumbing Ltd | Construction | 2025 |
| Watts Pubs Ltd | Hospitality | 2017 |
| Wave Plumbing Ltd | Construction | 2019 |
| Waverlii Limited | Wholesale & retail | 2024 |
| Wavmob Ltd | Wholesale & retail | 2024 |
| Wavmob Services Ltd | Wholesale & retail | 2024 |
| Waxaxe & Hearing Ltd | Health & social care | 2020 |
| Wayne's Weeds Away Ltd | Administrative & support | 2025 |
| Wayte Developments Ltd | Construction | 2026 |
| WBC Southern Ltd | Construction | 2025 |
| WCL Builders Ltd | Construction | 2018 |
| WCS & Logistics Ltd | Transport & logistics | 2018 |
| WDH Group Limited | Construction | 2015 |
| WE ARE ALL Creative Ltd | Professional & scientific | 2023 |
| WE ARE ALL Marketing Limited | Professional & scientific | 2019 |
| WE ARE Construction Limited | Construction | 2014 |
| WE ARE Laundrette Ltd | Other services | 2026 |
| WE ARE the News (Watn) Limited | Information & communication | 2019 |
| WE Care 24X7 Limited | Administrative & support | 2020 |
| WE Imagine Digital Limited | Information & communication | 2025 |
| WE Sell ANY Commercial Ltd | Wholesale & retail | 2019 |
| Weald Accounting Limited | Professional & scientific | 2023 |
| Weald Aviation Services Limited | Other services | 1993 |
| Weald Estates Limited | Real estate | 2026 |
| Wealth Transfer Specialist Ltd | Professional & scientific | 2024 |
| Weaver Solutions Limited | Information & communication | 2009 |
| Weaver-Mabbs Engineering Limited | Real estate | 1975 |
| Web Wing Tech. Limited | Information & communication | 2025 |
| Webb's Investments Ltd | Real estate | 2025 |
| Webb's Skips Limited | Water & waste | 2020 |
| Webb's Waste Limited | Water & waste | 2016 |
| Webuild Constructions & Suppliers Limited | Construction | 2023 |
| Webwave Marketing Limited | Professional & scientific | 2026 |
| Wecall Limited | Information & communication | 2011 |
| Wedding Photography Ltd | Professional & scientific | 2026 |
| Wedgwood Way Management Company Limited | Households | 2015 |
| Weebrit Global Ltd | Wholesale & retail | 2025 |
| Weee Recycling Solutions Ltd | Transport & logistics | 2025 |
| Weeping Tiger Ltd | Hospitality | 2024 |
| Well Garden Retreats Ltd | Arts & recreation | 2024 |
| Well Hung Rigging Ltd | Arts & recreation | 2010 |
| Welling Sports Limited | Arts & recreation | 2024 |
| Wellingtons Deli Limited | Hospitality | 2025 |
| Wellpotent Limited | Wholesale & retail | 2025 |
| Wellsons Homes Ltd | Real estate | 2020 |
| Wenbaw Group Ltd | Financial services | 2025 |
| Wendy Lawson Editing Services Limited | Information & communication | 2022 |
| Weng Property Limited | Real estate | 2022 |
| Wesmed Holdings Limited | Real estate | 2025 |
| Wesmed Limited | Health & social care | 2022 |
| Wesnet Services Ltd | Agriculture & fishing | 2001 |
| Wessex Asbestos Removal Services Limited | Professional & scientific | 2003 |
| Wessex Demolition & Salvage Limited | Construction | 1994 |
| Wessex Fluid Power (UK) Limited | Wholesale & retail | 2005 |
| Wessex Healthcare Diagnostics LLP | | 2019 |
| Wessex HSA Solutions Ltd | Transport & logistics | 2023 |
| Wessex Medical Financial Services Limited | Professional & scientific | 2020 |
| Wessex Medical Solutions Limited | Health & social care | 2019 |
| Wessex Technical Services (Buildings) Limited | Administrative & support | 2023 |
| Wessex Technology Limited | Professional & scientific | 1985 |
| Wessex Technology Opto-Electronic Products Limited | Information & communication | 1993 |
| West Hill Property Ltd | Extraterritorial | 2025 |
| West Midland Services Ltd | Administrative & support | 2018 |