| Tower Lane Garage Company Limited | Real estate | 1958 |
| TPL Apparel Ltd | Wholesale & retail | 2025 |
| Traintaxi Limited | Administrative & support | 1999 |
| Trajekt Digital Ltd | Information & communication | 2022 |
| Transittrack Ltd | Information & communication | 2024 |
| Trcc Joinery Ltd | Construction | 2025 |
| Trench Shop Ltd | Wholesale & retail | 2025 |
| Trident Technology Ltd | Information & communication | 2012 |
| Trinity Designs Limited | Arts & recreation | 2002 |
| Trinker Limited | Hospitality | 2025 |
| Triple S Training Limited | Professional & scientific | 2015 |
| Tristan Sillars Limited | Professional & scientific | 2008 |
| Triton Beverages Ltd | Manufacturing | 2023 |
| Triumph Properties (North Yorkshire) Limited | Construction | 2008 |
| Trustek Ltd | Information & communication | 2018 |
| TS Plant Sales Ltd. | Wholesale & retail | 2011 |
| Tulip Blinds (UK) Limited | Manufacturing | 2015 |
| Tumble & Tea Ltd | Arts & recreation | 2026 |
| Turfgrass Property Ltd | Real estate | 2023 |
| Turning Point Leeds Ltd | Education | 2024 |
| Twenty Hearts Ltd | Hospitality | 2013 |
| TWL Limited | Arts & recreation | 2026 |
| Two Way Holdings Limited | Real estate | 2019 |
| Tybo Consultants Limited | Professional & scientific | 2003 |
| Tyre Hero Limited | Extraterritorial | 2015 |
| Tyre Heroes Limited | Extraterritorial | 2015 |
| Tyres and Wheels 2U Ltd | Extraterritorial | 2010 |
| Tyrespot Autocentres Ltd | Extraterritorial | 2010 |
| UFO Leisure Ltd | Hospitality | 2024 |
| UK Green Solutions Ltd | Professional & scientific | 2020 |
| UK Nails & Spa Ltd | Other services | 2022 |
| UK Renovations Limited | Other services | 2003 |
| Unlimited Voices Travel Limited | Arts & recreation | 2012 |
| UNO Momento N Restaurant Ltd | Hospitality | 2023 |
| Urban Padel Hub Limited | Arts & recreation | 2024 |
| Urbanbarrel Limited | Manufacturing | 2026 |
| Usedmachinerybuyer.Co.Uk Ltd | Wholesale & retail | 2023 |
| V Goddard Equestrian Ltd | Agriculture & fishing | 2026 |
| Valks Housing Limited | Other services | 2017 |
| Vanimal Limited | Extraterritorial | 2020 |
| Vanly Trade Management Ltd | Information & communication | 2026 |
| Vaseys Farm Ltd | Agriculture & fishing | 2024 |
| Vasstech Group Limited | Financial services | 2021 |
| Vasstech Limited | Wholesale & retail | 2009 |
| Vektor Property Ltd | Real estate | 2025 |
| Venco Energy UK Limited | Energy | 2020 |
| Ventirimus Ltd | Wholesale & retail | 2023 |
| Venus Domestic & Commercial Cleaning Ltd | Administrative & support | 2020 |
| Vicky Anderson Limited | Agriculture & fishing | 2011 |
| Vicky Anderson Training Ltd | Education | 2023 |
| Victory Build Limited | Construction | 2020 |
| Viking Productions Ltd | Professional & scientific | 2004 |
| VNR Engineering Ltd | Manufacturing | 2023 |
| Voltec Solutions Ltd | Construction | 2025 |
| Vybzuk Limited | Professional & scientific | 2024 |
| W3LL Wood Ltd | Manufacturing | 2020 |
| Walking YOU Home CIC | Education | 2026 |
| Wallace Fabrications Ltd | Manufacturing | 2017 |
| Wallace Macmillan Associates Ltd | Professional & scientific | 2023 |
| Walnut Tree House (Northallerton) Management Company Limited | Households | 2024 |
| Walton Wind Assets Limited | Energy | 2019 |
| Ward Leisure (Cumbria) Ltd | Hospitality | 2019 |
| Wardz Consulting Limited | Professional & scientific | 2021 |
| Warm Room Solutions Ltd | Construction | 2026 |
| Wash and Degrease Ltd | Manufacturing | 2019 |
| Wensleydale Bacon (Properties) Ltd | Construction | 2017 |
| Wensleydale Bacon Limited | Wholesale & retail | 1983 |
| Wensleydale Railway PLC | Transport & logistics | 2000 |
| Wensleydale Railway Trust Ltd | Transport & logistics | 2000 |
| West END and Beyond Limited | Arts & recreation | 2025 |
| West Oxfordshire Publications Limited | Information & communication | 2013 |
| West Village Imagery Limited | Professional & scientific | 2013 |
| Westhorpe Capital Limited | Financial services | 2025 |
| Westhorpe Woods Limited | Hospitality | 2021 |
| Westpoint Environmental Limited | Water & waste | 2009 |
| Wetherby Trailers Limited | Wholesale & retail | 2023 |
| WF Racing Mats Ltd | Wholesale & retail | 2024 |
| Wheels and Tyres 2U Ltd | Extraterritorial | 2010 |
| Where to Go? Business Solutions Limited | Professional & scientific | 2024 |
| Whin Hill Farming | Agriculture & fishing | 2011 |
| Whitby & District Riding Club Ltd | Arts & recreation | 2019 |
| White Rose Agriculture Limited | Agriculture & fishing | 1998 |
| Whitehouse Farm Developments Limited | Construction | 2016 |
| Whiterock (Support) Limited | Professional & scientific | 2017 |
| Whiterock BID Holdings Limited | Financial services | 2020 |
| Whiterock BID Support Limited | Professional & scientific | 2013 |
| Whiterock Modular Limited | Construction | 2017 |
| Whittaker Groundworks Limited | Construction | 2015 |
| WHY Bird Ltd | Professional & scientific | 2026 |
| Wide Load Services (Yorkshire) Ltd | Transport & logistics | 2024 |
| Willemm Consultancy Limited | Professional & scientific | 2025 |
| Wilman Properties Ltd | Hospitality | 2025 |
| Windsor Financial Solutions Ltd | Financial services | 2012 |
| Windy Ridge Farm Shop Ltd | Wholesale & retail | 2025 |
| Wisesip Limited | Wholesale & retail | 2020 |
| WLS Holding Group Ltd | Transport & logistics | 2024 |
| WM Distribution Ltd | Wholesale & retail | 2024 |
| WM Mcivor & SON Ltd | Extraterritorial | 2009 |
| Wolferal SAW & Knife Company Limited | Real estate | 2010 |
| Woodleigh Close Management Company Limited | Real estate | 2022 |