| Woodsett Homes (Church Hill) Limited | Construction | 2024 |
| Woodsett Homes (Pendean) Limited | Construction | 2024 |
| Woodsett Homes Limited | Construction | 2001 |
| Woodside Automotive Limited | Wholesale & retail | 2026 |
| Woodside Industries Unlimited | Wholesale & retail | 2000 |
| Woodside Sunrooms Ltd | Construction | 2020 |
| Woodside Tutors Ltd | Administrative & support | 2021 |
| Woodsmiths Conversions Ltd | Manufacturing | 2023 |
| Woodstone Developments Limited | Real estate | 2004 |
| Woofix Ltd | Construction | 2024 |
| Wool & Much, Much, More Ltd | Wholesale & retail | 2017 |
| Woollas Security Limited | Administrative & support | 2020 |
| Woolpack Venue Ltd | Hospitality | 2018 |
| Wootton Hall Enterprise Ltd | Hospitality | 2020 |
| Wootton Hall Holdings Ltd | Hospitality | 2019 |
| Worcot UK Ltd | Wholesale & retail | 2016 |
| Work Creative Limited | Professional & scientific | 2007 |
| Work Management Wakefield Limited | Hospitality | 2021 |
| Work Play Connect Ltd | Arts & recreation | 2025 |
| Work Smart Accountants Limited | Professional & scientific | 2017 |
| Work Smart Business Accountants Limited | Professional & scientific | 2017 |
| Workallot Ltd | Information & communication | 2026 |
| Workbuddy Ltd | Hospitality | 2020 |
| Working - Dynamics Limited | Information & communication | 2003 |
| Workout Games Limited | Extraterritorial | 2023 |
| Worksop Landscape & Building Supplies Limited | Administrative & support | 2014 |
| Worksop Storage Ltd | Transport & logistics | 2021 |
| World Communications Agency LLP | | 2025 |
| World Deep Limited | Real estate | 2014 |
| World Empire Developers Ltd | Construction | 2019 |
| World Media Development Ltd | Information & communication | 2006 |
| World Women Wellbeing CIC | Education | 2023 |
| Worldled Ltd | Other services | 2015 |
| Worlds Granite Ltd | Manufacturing | 2021 |
| Worldshare | Health & social care | 1990 |
| Worth Construction Consultancy Ltd | Construction | 2025 |
| Wose Ltd | Information & communication | 2020 |
| WOT Trustees Limited | Professional & scientific | 2016 |
| WP Systems Ltd | Manufacturing | 2012 |
| WPA Development Limited | Professional & scientific | 2024 |
| WPA HGV Ltd | Transport & logistics | 2018 |
| WPA Management Limited | Professional & scientific | 2018 |
| Wpro Tech Ltd | Wholesale & retail | 2026 |
| WR Civils Ltd | Construction | 2015 |
| Wraith Trailers Limited | Manufacturing | 2014 |
| Wrapnova Ltd | Professional & scientific | 2025 |
| Wrays of Glengormley Limited | Other services | 2006 |
| Wrazen Health Ltd | Professional & scientific | 2010 |
| Wren Learning Consultancy Ltd | Professional & scientific | 2025 |
| Wrenford Limited | Extraterritorial | 2026 |
| WRG Acquisitions 2 Limited | Administrative & support | 2004 |
| WRG Environmental Limited | Water & waste | 1987 |
| Wride Property Investments Ltd | Real estate | 2024 |
| Wrigglesworth Investments Limited | Professional & scientific | 2017 |
| Wrigglesworth Management Limited | Professional & scientific | 2024 |
| Wright and Co Residential Limited | Real estate | 2023 |
| Wright and Co. Properties Limited | Real estate | 2016 |
| Wright Caravans Ltd | Hospitality | 2011 |
| Wright CO4 Limited | Real estate | 2023 |
| Wright Eco Energy Ltd | Extraterritorial | 2009 |
| Wright Electrical & Commissioning Ltd | Construction | 2012 |
| Wright Engineering Ltd | Professional & scientific | 2011 |
| Wright GUY Investments Limited | Construction | 2015 |
| Wright Investments Waterfronts Limited | Construction | 2012 |
| Wright Joinery Contracts Limited | Construction | 2009 |
| Wright Line Water Limited | Construction | 2002 |
| Wright Living Ltd | Real estate | 2021 |
| Wright Rain (2018) Limited | Wholesale & retail | 2018 |
| Wright Removals and Storage Ltd. | Transport & logistics | 2011 |
| Wright Tyres & Exhausts Limited | Wholesale & retail | 2011 |
| Wright Ventures Finance Limited | Financial services | 2012 |
| Wright's Conservatory Roof and Property Services Ltd | Construction | 2025 |
| Wright's Joinery & Carpentry Ltd | Construction | 2026 |
| Wrightmill Limited | Real estate | 2012 |
| Wrights Paint Perfection Ltd | Construction | 2022 |
| Writing for Wellness CIC | Health & social care | 2021 |
| Wrong'Uns Limited | Wholesale & retail | 2025 |
| Wroot Drying Services Limited | Other services | 2017 |
| Wroot Rocks Limited | Arts & recreation | 2024 |
| Wroot Water Limited | Other services | 2004 |
| WRY Ltd | Transport & logistics | 2025 |
| WS Belting Limited | Manufacturing | 2001 |
| WS Contracts Services Ltd | Construction | 2024 |
| WSD Consultants Ltd | Professional & scientific | 2022 |
| WSP Rendering Ltd | Construction | 2023 |
| Wspkb Ltd | Transport & logistics | 2020 |
| WSW Future Ltd | Construction | 2016 |
| WSW Global Ltd | Financial services | 2025 |
| WSW Properties Ltd | Real estate | 2024 |
| WTG Inspections Ltd | Professional & scientific | 2026 |
| WTW Holdings Ltd | Real estate | 2021 |
| WTW Trading Limited | Extraterritorial | 2015 |
| WW Engineering Solutions Limited | Professional & scientific | 2015 |
| Wwmc Ltd | Hospitality | 2020 |
| Wwtc Ltd | Real estate | 2022 |
| Www.Buyukdata.Co.Uk Ltd | Information & communication | 2021 |
| WYA Limited | Extraterritorial | 2026 |
| Wychelm Investment Co. Limited | Real estate | 1963 |
| Wykeham Estates (Northern) Limited | Administrative & support | 2000 |
| Wymans Coating Ltd | Construction | 2026 |