| Vigneshwara Stores Limited | Wholesale & retail | 2024 |
| Viknusal Ltd | Wholesale & retail | 2025 |
| Vincent Dynamics Ltd | Professional & scientific | 2026 |
| Violet Farm Foods Limited | Wholesale & retail | 1977 |
| Virescent Ltd | Information & communication | 2026 |
| Vital Homes International Ltd | Real estate | 2024 |
| Vito Ventures Limited | Information & communication | 2023 |
| VJ & a Management Co. Ltd | Real estate | 2004 |
| VK Groceries Ltd | Wholesale & retail | 2023 |
| VLM Solutions Limited | Administrative & support | 2020 |
| VN Assets Limited | Real estate | 2021 |
| Volt Loudspeakers Limited | Manufacturing | 1977 |
| Voltsandwatts Ltd | Professional & scientific | 2019 |
| Volunteer Centre Dorset | Information & communication | 2006 |
| Vortex Holsteins Limited | Agriculture & fishing | 2006 |
| VOUCHERS4ALL Limited | Arts & recreation | 2016 |
| VS Derma Healthcare Ltd | Health & social care | 2025 |
| VSP Interiors Ltd | Construction | 2014 |
| W D Seal Developments Ltd | Construction | 2024 |
| W T Rossiter Limited | Agriculture & fishing | 1999 |
| Wadebridge Investments Ltd | Real estate | 2019 |
| Walker Media Limited | Information & communication | 2023 |
| Walter Bidco Limited | Financial services | 2025 |
| Wandering Star Books Limited | Information & communication | 2000 |
| Wandering Star Limited | Information & communication | 1993 |
| Wandering Star Marine Ltd | Professional & scientific | 2005 |
| Wandering Star Media Limited | Information & communication | 2001 |
| Wandering Star Music Ltd | Information & communication | 1997 |
| Wandering Star Pictures Limited | Information & communication | 2004 |
| Wandering Star Publishing Limited | Information & communication | 2000 |
| Wandering Star Records Limited | Information & communication | 2001 |
| Ward Medical & Legal Services Limited | Health & social care | 2009 |
| Warmer Home Improvements Ltd | Construction | 2019 |
| Warmer Waters Ltd | Construction | 2014 |
| Warmwell Roofing Limited | Construction | 2008 |
| Warwick House Properties Limited | Real estate | 2021 |
| Wat-Er-Save Services Limited | Professional & scientific | 1990 |
| Watergates Fisheries Limited | Professional & scientific | 2004 |
| Waterhouse Land Ltd | Administrative & support | 2009 |
| Waterhouse Partners LLP | | 2011 |
| Waterlow Planning Ltd | Professional & scientific | 2019 |
| Waters Investments Limited | Agriculture & fishing | 1962 |
| Waterston Farm Shop Ltd | Manufacturing | 2025 |
| Waterways Consulting Services Ltd | Professional & scientific | 2023 |
| Waterwise (2018) Limited | Manufacturing | 2018 |
| Watkins Estates Limited | Real estate | 2017 |
| Watkins Holdings Ltd | Households | 2022 |
| Watkins Holiday Cottages LLP | | 2021 |
| Watkins Property Management Limited | Administrative & support | 2017 |
| Watts & Sons Limited | Wholesale & retail | 2008 |
| Watts Geoscience Consulting Limited | Hospitality | 2010 |
| Wave Connections CIC | Health & social care | 2022 |
| Wavecrest Creative Limited | Wholesale & retail | 2018 |
| Waverley Court Management Company (Weymouth) Limited | Real estate | 1973 |
| Way Construction Limited | Extraterritorial | 2016 |
| WAY2GO Consulting Ltd | Professional & scientific | 2019 |
| Wayne Parkman Quality Decorating Limited | Construction | 2008 |
| WAYS2RAISE Ltd | Administrative & support | 2025 |
| WB Kennels Ltd | Other services | 2019 |
| WE ARE Shadows Limited | Arts & recreation | 2010 |
| WE Rock Catering Ltd | Hospitality | 2026 |
| Weatherbury Place Management Limited | Households | 2019 |
| Wedgwood Catering Ltd | Hospitality | 2025 |
| Weeks and Lafone Limited | Professional & scientific | 2016 |
| Weldmar Hospicecare Limited | Health & social care | 1990 |
| Weldmar Hospicecare Trading Limited | Wholesale & retail | 1993 |
| Wenlock Estates Ltd | Real estate | 2022 |
| Wessex Audio Ltd | Construction | 2017 |
| Wessex Carpentry and Builders Limited | Construction | 2003 |
| Wessex Conservation Grazing Limited | Agriculture & fishing | 2015 |
| Wessex Contractors Ltd | Transport & logistics | 2023 |
| Wessex Equity Partners Limited | Professional & scientific | 2011 |
| Wessex Gifts Limited | Wholesale & retail | 2008 |
| Wessex Groundworks Limited | Administrative & support | 2017 |
| Wessex Holdings and Estates Ltd | Other services | 2021 |
| Wessex Land Management Limited | Real estate | 2017 |
| Wessex Metals Limited | Water & waste | 2004 |
| Wessex Multi Academy Trust | Education | 2011 |
| Wessex Place Management Limited | Households | 1999 |
| Wessex Property Services Group Ltd | Construction | 2024 |
| Wessex Reinvestment Trust | Professional & scientific | 2002 |
| West Bay House Limited | Households | 2016 |
| West Bay River Boats Ltd | Administrative & support | 2022 |
| West Court Property Management Limited | Real estate | 1991 |
| West Dorset Aquatics Limited | Wholesale & retail | 2000 |
| West Dorset Motor Company Ltd | Wholesale & retail | 2003 |
| West Dorset Practice Ltd | Health & social care | 2015 |
| West Knighton Motor Services Limited | Wholesale & retail | 2014 |
| Westbound Ltd | Hospitality | 2014 |
| Westbourne Pantry Ltd | Wholesale & retail | 2023 |
| Western Skating Limited | Administrative & support | 2009 |
| Westgate House (Dorchester) Management Company Limited | Real estate | 1989 |
| Westhill View Management Company Limited | Real estate | 2018 |
| WEY Meadow Stables Limited | Hospitality | 2021 |
| Weymouth Carpentry Limited | Construction | 2007 |
| Weymouth Fibreglass Roofing Ltd | Construction | 2021 |
| Weymouth Trade & Investment Limited | Wholesale & retail | 2003 |
| Weymouth Watercraft Limited | Real estate | 1999 |
| Weymouth Watersports Ltd | Arts & recreation | 2009 |
| Weymouth Wetrooms Limited | Construction | 2013 |