| Wards (Produce) Ltd | Wholesale & retail | 1998 |
| Warido IT Services Limited | Information & communication | 2016 |
| Warings Developments Limited | Construction | 2025 |
| Warings Properties Limited | Real estate | 2025 |
| Warings Property Services Limited | Real estate | 2024 |
| Waris&Akbar Properties Ltd | Real estate | 2022 |
| Warlington Blue Limited | Wholesale & retail | 2022 |
| Warm Home Solutions Ltd | Wholesale & retail | 2023 |
| Warmland Security Ltd | Administrative & support | 2025 |
| Warmlight Trading Ltd | Construction | 2024 |
| Warmup Digital Marketing Ltd | Information & communication | 2025 |
| Warmupuk Limited | Construction | 2025 |
| Warnett Consulting Ltd | Information & communication | 2018 |
| Warrazi Transport Ltd | Transport & logistics | 2017 |
| Warren Barlow Training Limited | Professional & scientific | 2018 |
| Warriach Brothers Limited | Administrative & support | 2024 |
| Warrior (UK) Limited | Professional & scientific | 2000 |
| Warrior Properties Ltd | Real estate | 2022 |
| Warung Kita Ltd | Wholesale & retail | 2024 |
| Warwick Homes Development 1 Ltd | Financial services | 2023 |
| Warwick Homes Development 2 Ltd | Financial services | 2023 |
| Warwick Homes Development Build Limited | Construction | 2023 |
| Warwick Homes Development Ltd | Construction | 2023 |
| Wasel Tech Ltd | Information & communication | 2025 |
| Washington Market Properties Limited | Real estate | 2017 |
| Washington Street Garage Ltd | Wholesale & retail | 2022 |
| Washington Windows Limited | Construction | 2014 |
| Wasi Goods Ltd | Wholesale & retail | 2023 |
| Wasi Ltd | Wholesale & retail | 2025 |
| Wasizad Shoes Ltd | Wholesale & retail | 2026 |
| Wassan Bolton Ltd | Administrative & support | 2022 |
| Wassan Properties Bolton Ltd | Real estate | 2024 |
| Waste (Atherton) Holdings Limited | Administrative & support | 2005 |
| Waste (Atherton) Limited | Other services | 1983 |
| Waste Management & Recycling Solution Limited | Other services | 2020 |
| Wastelynn Limited | Hospitality | 1978 |
| Wastepaper Ltd | Information & communication | 2023 |
| Watch Sourcing Ltd | Wholesale & retail | 2025 |
| Waterdog Education and Training Ltd | Extraterritorial | 2024 |
| Waterfall & O`Brien Limited | Professional & scientific | 2007 |
| Wateringpool Cars Limited | Wholesale & retail | 2020 |
| Waterline Environmental Limited | Water & waste | 1999 |
| Waterloo Rentals Ltd | Real estate | 2025 |
| Watersedge Ceramics Limited | Manufacturing | 2006 |
| Waterside (Woodley) Management Limited | Households | 2006 |
| Waterside Health Care Holdings Limited | Health & social care | 2023 |
| Waterways Consultants Ltd | Wholesale & retail | 2021 |
| Waterworth Heating Ltd | Construction | 2016 |
| Watson Driving Services Limited | Transport & logistics | 2018 |
| Watson Parke (H & S) Consultancy Limited | Professional & scientific | 2007 |
| Watson the Road Limited | Transport & logistics | 2024 |
| Watt Global Medical Communications Ltd | Professional & scientific | 2020 |
| Watt Wattage Ltd | Construction | 2012 |
| Wave Estate Limited | Other services | 2006 |
| Wave Riders Pools to Schools Ltd | Education | 2025 |
| Waveform Power Limited | Professional & scientific | 2022 |
| Wavy Abyss Limited | Wholesale & retail | 2022 |
| Waxoff Ltd | Health & social care | 2026 |
| Wayfinder Ltd | Administrative & support | 2016 |
| Wayne Burgess Ltd | Construction | 2016 |
| Wayoh Consultancy Ltd | Professional & scientific | 2021 |
| Wayora TRV Limited | Other services | 2025 |
| Waypoint Crew Ltd | Wholesale & retail | 2024 |
| Waystar Media Ltd | Extraterritorial | 2023 |
| WB Business UK Ltd | Wholesale & retail | 2021 |
| WB Dunya Supermarket Limited | Wholesale & retail | 2021 |
| Wbvf London Ltd | Health & social care | 2026 |
| Wbvf Midlands Ltd | Health & social care | 2026 |
| Wbvf NW Ltd | Health & social care | 2026 |
| Wcre Holdco Limited | Financial services | 2018 |
| WD Bradley Amusement Ride Manufacture Limited | Manufacturing | 2026 |
| WDB Haulage Ltd | Transport & logistics | 2025 |
| WDC Comms Ltd | Other services | 2020 |
| WDD Salvage Limited | Manufacturing | 2023 |
| Wdhousing Ltd | Real estate | 2026 |
| WDN Holdings Limited | Real estate | 2022 |
| WE ARE Chauffeurs Ltd | Transport & logistics | 2026 |
| WE ARE Foodiez Ltd | Hospitality | 2024 |
| WE ARE FR Group Limited | Administrative & support | 2018 |
| WE ARE Golfing Later Limited | Information & communication | 2024 |
| WE ARE Joyous Ltd | Administrative & support | 2026 |
| WE ARE Lumi Limited | Wholesale & retail | 2023 |
| WE ARE Swim Holdings Limited | Arts & recreation | 2024 |
| WE ARE the Care Company Limited | Health & social care | 2010 |
| WE ARE U Music Limited | Information & communication | 2013 |
| WE DO Samples Limited | Professional & scientific | 2021 |
| WE Koko Ltd | Wholesale & retail | 2015 |
| WE Love Baby Limited | Wholesale & retail | 2019 |
| WE Love Pets Crystal Palace Ltd | Other services | 2024 |
| WE Love Produce Ltd | Wholesale & retail | 2023 |
| WE NW Holdings Ltd | Real estate | 2023 |
| We'Re the Moment Ltd | Wholesale & retail | 2023 |
| Wear the Gear Ltd | Wholesale & retail | 2011 |
| Wear-Loud Ltd | Manufacturing | 2025 |
| Weather Shield North West Ltd | Construction | 2019 |
| Weathertop Ltd | Information & communication | 2024 |
| Weavers on the Wylye Ltd | Hospitality | 2023 |
| Web HD Limited | Information & communication | 2014 |
| Web Media Group Ltd | Other services | 2018 |
| Web Professionals Ltd | Information & communication | 2021 |