| TG Welding Limited | Manufacturing | 1992 |
| Thay Medical Limited | Administrative & support | 2014 |
| THE Almer PUB Company Ltd | Hospitality | 2024 |
| THE ARK Child Okeford | Education | 2008 |
| THE Avid Seamstress Ltd | Other services | 2020 |
| THE Barrows Management Company Limited | Real estate | 1998 |
| THE Bear Tiger Club Holdings Limited | Arts & recreation | 2022 |
| THE Bear Tiger Club Limited | Arts & recreation | 2022 |
| THE Chandlers (Blandford) Management Company Limited | Professional & scientific | 2007 |
| THE Conversion Group Operations Ltd | Wholesale & retail | 2025 |
| THE Copper Still Events Company Limited | Wholesale & retail | 2022 |
| THE Coppleridge Inn Ltd | Hospitality | 2023 |
| THE Dorset Food People Limited | Hospitality | 2019 |
| THE Dorset Guide Ltd | Education | 2024 |
| THE Dorset Tavern Company Ltd | Hospitality | 2026 |
| THE Energy Reduction Consultancy Ltd | Professional & scientific | 2008 |
| THE Event Book LDN Ltd | Administrative & support | 2019 |
| THE Ferals Farm Ltd | Financial services | 2022 |
| THE Georgian Tea Rooms (Dorset) Limited | Hospitality | 2018 |
| THE Green MAN SKV Ltd | Hospitality | 2025 |
| THE Hanford Collective Limited | Financial services | 2024 |
| THE House of Sarunds Limited | Wholesale & retail | 1994 |
| THE Indigo Tree Ltd | Wholesale & retail | 2013 |
| THE International Ophthalmic Nurses’ Association Limited | Health & social care | 2020 |
| THE Invisible Edge Ltd | Wholesale & retail | 2012 |
| THE Kitchen at Blandford Ltd | Other services | 2022 |
| THE Lodge Co. Ltd | Agriculture & fishing | 2026 |
| THE Luccombe Hub Limited | Education | 2020 |
| THE Mortgage Directory (UK) Limited | Financial services | 2003 |
| THE ODD Corp Limited | Hospitality | 2025 |
| THE Old Auction Rooms Management Company Limited | Households | 2013 |
| THE Old School Nursery (Shapwick) Limited | Education | 2011 |
| THE Only Way IS Chettle C.I.C. | Professional & scientific | 2019 |
| THE Orchard (Blandford) Property Management Limited | Households | 1993 |
| THE Orkneys Blandford Ltd | Households | 2008 |
| THE Outlook Resident Management Ltd | Households | 2024 |
| THE Performing Arts Theatre Academy LLP | | 2024 |
| THE Red House (Blandford) Management Company Limited | Households | 1987 |
| THE Royal Signals Museum Trading Company Limited | Wholesale & retail | 1998 |
| THE Royal Signals Trustee Limited | Professional & scientific | 1959 |
| THE RUM Life Ltd | Manufacturing | 2022 |
| THE Shed Station Ltd | Construction | 2020 |
| THE Simple Sorters Ltd | Administrative & support | 2025 |
| THE Station Group Ltd | Administrative & support | 2020 |
| THE Talbot Courtyard Management Company Limited | Households | 2020 |
| THE True Food Kitchen Limited | Hospitality | 2012 |
| THE VEG Lady Limited | Agriculture & fishing | 2023 |
| THE Victorian Barn Dorset Ltd | Hospitality | 2023 |
| THE Wandering Olive Dorset Limited | Hospitality | 2025 |
| THE Washing Basket Ltd | Other services | 2020 |
| THE Wild Spa Group Ltd | Administrative & support | 2024 |
| Thornfalcon Services Limited | Construction | 2001 |
| Thornhill Limited | Real estate | 2015 |
| Tidy Gardens Limited | Administrative & support | 2017 |
| Timeless Fashions Ltd | Wholesale & retail | 2023 |
| Timpany Limited | Agriculture & fishing | 1989 |
| Tina Price Productions Ltd | Information & communication | 2024 |
| TIO Developments Limited | Real estate | 2017 |
| Titan Pro Limited | Agriculture & fishing | 2007 |
| TLC Projects Limited | Professional & scientific | 2024 |
| TMS Property Services Ltd | Real estate | 2022 |
| TOM Christopher Electrical Ltd | Construction | 2021 |
| Tool Hub Ltd. | Wholesale & retail | 2013 |
| Torycomb LLP | | 2020 |
| Total Energy Services Limited | Construction | 1998 |
| Total Laboratory Services Ltd | Wholesale & retail | 2008 |
| Total Window Repairs Limited | Construction | 2005 |
| Touchpoint Leadership Limited | Professional & scientific | 2016 |
| Tower Cabinet Makers Ltd | Manufacturing | 2023 |
| Trailer-Made Catering Ltd | Hospitality | 2019 |
| Train With Tony Ltd | Arts & recreation | 2026 |
| Transform Dorset Ltd | Construction | 2020 |
| Treestuff Ltd | Agriculture & fishing | 2020 |
| Trickey Conveyancing Limited | Professional & scientific | 2025 |
| TS & R Limited | Administrative & support | 2018 |
| Tutorland Ltd | Education | 2021 |
| Twin Oaks Tree Care Ltd | Administrative & support | 2026 |
| Tyres in Time Ltd | Wholesale & retail | 2025 |
| UK LOG Cabins Ltd | Construction | 2024 |
| Under Construction Dorset Ltd | Construction | 2023 |
| Underground Padel Ltd | Arts & recreation | 2026 |
| Uni-Trade Support Services Ltd | Construction | 2016 |
| Urry Industrial Services Ltd | Professional & scientific | 2022 |
| Uğur Hospitality Ltd | Hospitality | 2024 |
| V Wallis Welding Limited | Construction | 2004 |
| V.A.D. Hygiene Limited | Administrative & support | 2005 |
| Valerie Priseman Ltd | Real estate | 2023 |
| Valley View Equestrian Ltd | Agriculture & fishing | 2021 |
| Vanta TSR Group Ltd | Transport & logistics | 2026 |
| Vernon Harcourt Carpentry Ltd | Manufacturing | 2008 |
| Verwood Electrical Limited | Construction | 2009 |
| Vetrepreneurs Circle CIC | Administrative & support | 2025 |
| Vinna Bespoke Electrical Solutions Ltd. | Construction | 2019 |
| Virtual P.A. Limited | Administrative & support | 1997 |
| Vista Hair Ltd | Other services | 2021 |
| Vista Laundry Ltd | Other services | 2023 |
| Vogue Vista GL Ltd | Wholesale & retail | 2024 |
| Vortekra Ltd | Manufacturing | 2026 |
| W J Hart Ltd | Construction | 2006 |
| Wadey Trees Ltd | Agriculture & fishing | 2020 |