| True Peak Developments Ltd | Professional & scientific | 2025 |
| Trustbridge Healthcare Services Ltd | Health & social care | 2025 |
| Tubbed Grub Ltd | Hospitality | 2020 |
| Tuin (UK) Limited | Manufacturing | 2012 |
| Tuin Garden Buildings Limited | Manufacturing | 2012 |
| Tulip Parking (Headford) Limited | Real estate | 2017 |
| Tulip Parking (Retford) Limited | Other services | 2018 |
| Tulip Parking (West Bar) Limited | Other services | 2018 |
| Tulip Parking Limited | Transport & logistics | 2014 |
| Ture-Baxter UK Limited | Arts & recreation | 2010 |
| Turkish Barber Shop Ltd | Other services | 2024 |
| Twelve 12 Properties Limited | Real estate | 2024 |
| Twil Group Pension Trustees Limited | Financial services | 2018 |
| U.T. Care Products Limited | Wholesale & retail | 1990 |
| UK Labs Auctions Ltd | Wholesale & retail | 2023 |
| UK Transport & Warehousing Limited | Transport & logistics | 2026 |
| Ukglassware Limited | Wholesale & retail | 2021 |
| Underfloor Heating Shop Limited | Wholesale & retail | 2016 |
| Universal Rope Access Ltd | Construction | 2012 |
| Untamedfabrication Limited | Manufacturing | 2025 |
| Urban Artisan Ltd | Manufacturing | 2026 |
| Urban Aurora Electrical Ltd | Construction | 2025 |
| Urbn FOX Limited | Real estate | 2024 |
| Utley Group Electrical Limited | Construction | 2018 |
| V & P Motors Limited | Wholesale & retail | 2005 |
| Valleyfield (Mexborough) Ltd | Real estate | 2011 |
| Varga Logistics Limited | Transport & logistics | 2026 |
| Vartis Property Ltd | Real estate | 2022 |
| Vehicle Logistics Solutions UK Ltd | Transport & logistics | 2014 |
| Vehicle Security & Electrical Ltd | Extraterritorial | 2021 |
| Venus Photographic Studios Limited | Professional & scientific | 2008 |
| Veritas Motor Solutions Ltd | Wholesale & retail | 2019 |
| Vertex Solar Ltd | Construction | 2026 |
| Vesta Fire Ltd | Professional & scientific | 2023 |
| Vicharm Homes Ltd | Real estate | 2022 |
| Viking Property Rentals Ltd | Real estate | 2024 |
| Vintage Love Boutique Limited | Wholesale & retail | 2014 |
| Viptravelz Ltd | Transport & logistics | 2025 |
| W H Commercials Limited | Other services | 2008 |
| WAO Properties Limited | Real estate | 2024 |
| Wards Developments (West Yorkshire) Limited | Construction | 2006 |
| Warmnest Heating Limited | Construction | 2024 |
| Waterside Gardens Properties Limited | Construction | 2017 |
| Wath Road Convenience Stores Ltd | Wholesale & retail | 2024 |
| Wath TAP Ltd | Hospitality | 2016 |
| Way More Legacy Planning Ltd | Other services | 2021 |
| Way More Self Storage Rotherham Ltd | Real estate | 2026 |
| Way More Solutions Ltd | Financial services | 2018 |
| WE Fit Developments Ltd | Construction | 2023 |
| Weather Guard Systems Ltd | Construction | 2025 |
| Wenden Transport Services Limited | Wholesale & retail | 2003 |
| Wendy Eliot Ltd | Health & social care | 2023 |
| Wendy Panther Ltd | Health & social care | 2023 |
| West Riding Independent Ltd | Wholesale & retail | 2005 |
| West Security Services Limited | Administrative & support | 2025 |
| West Yorkshire Fire and Security Ltd | Administrative & support | 2014 |
| WGL Developments Limited | Real estate | 2006 |
| What Goes Around Comes Around Limited | Wholesale & retail | 2002 |
| What the Plant Ltd | Wholesale & retail | 2023 |
| Whinside Health & Safety Limited | Administrative & support | 2023 |
| White Cable Solutions Ltd | Information & communication | 2026 |
| White Holmes Financial Solutions Limited | Professional & scientific | 2019 |
| White Rose Security Limited | Manufacturing | 1999 |
| Whitecity Capital Ltd | Financial services | 2020 |
| Whitecity Care 1 Ltd | Health & social care | 2022 |
| Whitehead Yorkshire Properties Ltd | Real estate | 2025 |
| Wiggy's Homes Limited | Real estate | 2022 |
| Wilcey Properties Limited | Real estate | 2011 |
| Wileman Plumbing & Heating Ltd | Construction | 2019 |
| Will Jones Limited | Agriculture & fishing | 2015 |
| William Duce Limited | Construction | 2003 |
| Williamson Mammography Ltd | Health & social care | 2022 |
| Wilmor Trans Ltd | Transport & logistics | 2025 |
| Wilson Pippard Properties Limited | Real estate | 2020 |
| Wink's PHG Ltd | Construction | 2024 |
| Wizardry Wear Ltd | Wholesale & retail | 2023 |
| Woodcraft Holdings Limited | Financial services | 2022 |
| Woodland View Equestrian Centre Limited | Administrative & support | 2015 |
| Woodman Mini Market Ltd | Wholesale & retail | 2023 |
| Wordup Literacy CIC | Education | 2026 |
| WRS Asset Management Limited | Manufacturing | 2014 |
| WRS Signs Limited | Manufacturing | 2016 |
| WRS Solutions Limited | Information & communication | 1998 |
| Wtwa Ltd | Transport & logistics | 2020 |
| Wyra Entertainment Limited | Professional & scientific | 2025 |
| YAP Systems Ltd | Administrative & support | 2017 |
| Yardene Engineering 2000 Limited | Manufacturing | 1999 |
| YBO Accountants LLP | | 2011 |
| Yorkshire Balustrade Company Ltd | Construction | 2023 |
| Yorkshire C C Ltd | Hospitality | 2024 |
| Yorkshire Family Butchers Ltd | Wholesale & retail | 2020 |
| Yorkshire Wedding Invites and Engraving Ltd. | Wholesale & retail | 2016 |
| Young at Heart Polish Senior Club CIC | Other services | 2025 |
| Young Business Management Limited | Real estate | 1995 |
| Your Mobility Ltd | Wholesale & retail | 2020 |
| Your Music Academy Ltd | Wholesale & retail | 2019 |
| Yutakah Ltd | Health & social care | 2025 |
| Zass Trading Ltd | Wholesale & retail | 2025 |
| ZED Lettings Limited | Real estate | 2011 |
| ZEN Blossom Ltd | Arts & recreation | 2024 |