| Trace-Sea Limited | Agriculture & fishing | 2017 |
| Tradewinds & Associates Ltd | Professional & scientific | 2021 |
| Transition Town Bridport Limited | Other services | 2009 |
| Translab Ltd | Transport & logistics | 2019 |
| Travail EN Famille Limited | Wholesale & retail | 2013 |
| Treadstone Building Services Ltd | Construction | 2011 |
| Treeage Training Limited | Education | 2012 |
| Trellis Foundation C.I.C. | Administrative & support | 2017 |
| Trend Electrical Ltd | Construction | 2022 |
| Trethwin Limited | Real estate | 2003 |
| Triarchy Press Limited | Information & communication | 2006 |
| Trident 1739 Ltd | Real estate | 2025 |
| Turnbak Limited | Hospitality | 2025 |
| Tusk and Trumpet Ltd | Professional & scientific | 2025 |
| UK Business Asset Capital Ltd | Financial services | 2024 |
| Unbroken Records Ltd | Manufacturing | 2019 |
| Uniteddiversity LLP | | 2002 |
| Unleashed Burgers Ltd | Hospitality | 2024 |
| Upton Sustainable Energy Limited | Construction | 2015 |
| Urban Haven Property Services Ltd | Real estate | 2018 |
| Vanessa Cooper Limited | Manufacturing | 2012 |
| Vaperstar Bridport Ltd | Wholesale & retail | 2018 |
| Venice Dubai Holiday Rentals Ltd | Real estate | 2023 |
| Verlyee Ltd | Administrative & support | 2007 |
| VF Consultants Limited | Administrative & support | 2024 |
| Vicary & Co Ltd | Real estate | 2012 |
| VIJ Holdings Limited | Professional & scientific | 2015 |
| Vista Holidays Limited | Extraterritorial | 2007 |
| VPS Geoscience Ltd | Professional & scientific | 2020 |
| W. Frost & Co. Limited | Wholesale & retail | 1948 |
| Wade Waxworks Limited | Arts & recreation | 2010 |
| Walker Cotter (Southern) Limited | Professional & scientific | 1999 |
| Waste NOT Want NOT Bridport Limited | Wholesale & retail | 2018 |
| Welland Energenet Ltd | Professional & scientific | 2015 |
| Weller Scaffolding Limited | Construction | 2002 |
| Wenmac Limited | Households | 2025 |
| Wessex Collectables Ltd | Wholesale & retail | 2014 |
| Wessex Furniture Limited | Administrative & support | 1995 |
| Wessex Surveying Limited | Professional & scientific | 2015 |
| Wessex Surveyors Holding Company Ltd | Financial services | 2025 |
| West Bay Pond Limited | Professional & scientific | 2005 |
| West Dorset Property Ltd | Real estate | 2018 |
| West Road Storage Ltd. | Real estate | 2015 |
| Westcountry CUT Cuts Ltd | Administrative & support | 2022 |
| Westcountry Reflections Ltd | Administrative & support | 2023 |
| Westec Precision Ltd | Professional & scientific | 2014 |
| Westlands Court (Bridport) Freehold Limited | Households | 2006 |
| Weston D&C Limited | Professional & scientific | 2021 |
| Westover Farm Holidays Limited | Hospitality | 2020 |
| Weve-A-Gift (South) Limited | Wholesale & retail | 2009 |
| White Hart (Crewkerne) Ltd | Hospitality | 2019 |
| White Shoes Hospitality Ltd | Hospitality | 2024 |
| Whitecross Field Netherbury Management Limited | Real estate | 2019 |
| Whitehall IT Solutions Ltd | Information & communication | 2008 |
| Widger Architecture Ltd | Professional & scientific | 2019 |
| Will Hyde Music Limited | Information & communication | 2015 |
| Willmar Properties Limited | Real estate | 2016 |
| Willowbank Group Ltd | Other services | 2018 |
| Windoorland Ltd | Wholesale & retail | 2023 |
| Winterborne Legal Services Limited | Professional & scientific | 2019 |
| Winterhayes Consulting Limited | Professional & scientific | 2025 |
| Wippell's Ltd | Manufacturing | 2024 |
| WKG Consulting Limited | Information & communication | 2009 |
| Wootton Fitzpaine C.I.C. | Administrative & support | 2017 |
| Working BEE Productions Ltd | Professional & scientific | 2024 |
| Wright & Sons Builders Limited | Construction | 2016 |
| Writesideleft Ltd | Information & communication | 2017 |
| Wyldlands Ltd | Agriculture & fishing | 2019 |
| Yate & Mcgrath Limited | Administrative & support | 2025 |
| Yayaway Ltd | Extraterritorial | 2017 |
| YES Audio Visual Ltd | Administrative & support | 2022 |
| Yodomo Ltd | Education | 2017 |
| Zakee Shariff Art and Design Limited | Arts & recreation | 1998 |
| Zander Construction Limited | Construction | 2023 |