| Tutoro Tutoring Ltd. | Information & communication | 2002 |
| TW141 Ltd | Hospitality | 2018 |
| TWC Fair Traders | Wholesale & retail | 2005 |
| Twilo Limited | Other services | 2000 |
| Two Cooks and a Van Limited | Hospitality | 2007 |
| Ubna Ltd | Wholesale & retail | 2018 |
| Ubuy Solutions Ltd | Wholesale & retail | 2015 |
| Ubuy Tech Ltd | Wholesale & retail | 2015 |
| UGE Limited | Manufacturing | 1996 |
| UK Company Solutions Limited | Professional & scientific | 2007 |
| UK New ERA Ltd | Wholesale & retail | 2024 |
| Ultimate Finish (Sthrn) Limited | Construction | 2006 |
| Ultra Electronics Cems Limited | Manufacturing | 2022 |
| Ultra PCS Limited | Manufacturing | 2022 |
| Universe Limited | Wholesale & retail | 1993 |
| UP in Smoke Theatre Company Limited | Wholesale & retail | 2006 |
| UP to Speed Media Limited | Administrative & support | 2006 |
| Uzan Bhati Ltd | Hospitality | 2026 |
| V-M Orthotics Limited | Professional & scientific | 1995 |
| V. J. Adams Marketing Limited | Administrative & support | 1978 |
| Vale Developments (FF) Limited | Construction | 2007 |
| Valerie Gleeson Ltd | Extraterritorial | 2022 |
| Van Mossel Automotive Group UK Limited | Professional & scientific | 2015 |
| Vedamarket Properties Limited | Real estate | 1998 |
| Velinor Ltd | Wholesale & retail | 2025 |
| Veloaddict Limited | Wholesale & retail | 2007 |
| Velocourt Limited | Households | 1992 |
| Verlec Limited | Construction | 2005 |
| Verulam Management Limited | Households | 1983 |
| VEZ Consultancy Limited | Professional & scientific | 2002 |
| Victoria Court (Bournemouth) Management Company Limited | Households | 2000 |
| Victoria Court Investments Limited | Households | 2003 |
| Victoria Flats Residents Association (Swanage) Limited | Households | 1977 |
| Victoria Park Place Management Company Limited | Real estate | 1990 |
| Victoria Plum Accountancy Services Ltd | Professional & scientific | 2003 |
| Viewscape Homes (Longham) Ltd. | Professional & scientific | 2004 |
| Vinylcast Vehicle Graphics Limited | Extraterritorial | 2008 |
| Virgo Estates Ltd | Real estate | 2007 |
| Vision Houses Limited | Construction | 2002 |
| Vitcom Global Solutions Ltd | Professional & scientific | 1998 |
| Vitec Ceilings & Partitions Limited | Construction | 1994 |
| Vivien Horder Property Management Limited | Real estate | 2004 |
| Vivitravel Ltd | Administrative & support | 2023 |
| Voicevote Ltd | Information & communication | 2025 |
| Volt Recruit Ltd | Administrative & support | 2024 |
| Volta Pro Tours Ltd | Administrative & support | 2007 |
| Vugot Limited | Wholesale & retail | 2007 |
| W L Bussell & Co Limited | Administrative & support | 2003 |
| W.W.Hannam & Sons Limited | Agriculture & fishing | 1962 |
| Waikiki Fishing Limited | Agriculture & fishing | 2003 |
| Walc Limited | Health & social care | 2007 |
| Wall Capital & Media Ltd. | Information & communication | 2022 |
| Wards Contract Cleaning Ltd | Administrative & support | 2007 |
| Wareham Forest Tourist Park Limited | Hospitality | 1972 |
| Water Tower Properties Limited | Real estate | 2006 |
| Water's Edge Poole Ltd | Households | 2005 |
| Watergate Management Company Limited | Households | 2002 |
| Waterside | | 1992 |
| Waterson Engineering Limited | Professional & scientific | 2001 |
| Wates Farm Partnership | | 1989 |
| Wayne's Carpets Limited | Construction | 2007 |
| Wedding Time Limited | Wholesale & retail | 2001 |
| Weeks (UK) Limited | Construction | 1986 |
| Wellens Business Support Services Ltd. | Hospitality | 1994 |
| Wellens Investments Ltd | Financial services | 2007 |
| Wessex Gate (Bournemouth) Management Company Limited | Real estate | 2001 |
| Wessex House Future Ltd | Real estate | 2021 |
| Wessex Information Solutions Limited | Information & communication | 1998 |
| Wessex Lettings Limited | Real estate | 1999 |
| Wessex Locksmiths Limited | Wholesale & retail | 2002 |
| Wessex Range Service Limited | Manufacturing | 2006 |
| Wessex Site Inspection Ltd | Professional & scientific | 1997 |
| Wessex Transport Training Limited | Administrative & support | 1993 |
| West Coast Carpenters Limited | Construction | 2005 |
| West March Limited | Construction | 1976 |
| West Moors Vehicle Repairs Ltd | Wholesale & retail | 2024 |
| Westering Flat Management Limited | Households | 1997 |
| Western Counties Insurance Services Limited | Financial services | 1968 |
| Westover Holdings Limited | Real estate | 1962 |
| Weymouth and Portland Wreck to Reef Ltd | Other services | 2008 |
| Weymouth Car Care Limited | Wholesale & retail | 2000 |
| Wheaton Grange Flat Management Company Limited | Households | 1984 |
| Wheelhouse Management Limited | Households | 2002 |
| White Lodge Management (Swanage) Limited | Households | 2006 |
| WHY Management Limited | Professional & scientific | 2007 |
| Whyable Limited | Information & communication | 2014 |
| Wickpoint Aerospace Limited | Manufacturing | 2007 |
| Wildlife Windows Ltd | Manufacturing | 2007 |
| Wilkes & Co Property Limited | Real estate | 2007 |
| Willcraft Storage Services | | 2008 |
| William Pitfield and Co Ltd. | Administrative & support | 1994 |
| Willis Way Management Limited | Real estate | 2000 |
| Wills Mattey Design Limited | Administrative & support | 2003 |
| Wilmic Precision Engineering Ltd. | Manufacturing | 1997 |
| Wilson Bullock Limited | Professional & scientific | 2004 |
| Wiltshire Game Ltd | Agriculture & fishing | 2007 |
| Wimborne Software Systems Limited | Information & communication | 1989 |
| Winters Marine Limited | Transport & logistics | 1971 |
| Wiscombe & SON Limited | Construction | 2002 |
| Wiscombe Limited | Arts & recreation | 1962 |