| THE Friends of Canford School | Education | 1943 |
| THE Future WAS 8BIT Limited | Wholesale & retail | 2013 |
| THE Glass Studio Management Company Limited | Households | 1999 |
| THE Green Room Clinic (Dorset) Ltd | Health & social care | 2026 |
| THE Green Room Clinic Limited | Wholesale & retail | 2016 |
| THE Hanging Frame Limited | Wholesale & retail | 2025 |
| THE Heatwave Music Limited | Professional & scientific | 2013 |
| THE HH Partnership LLP | | 2026 |
| THE Hideout Soft Play Limited | Hospitality | 2023 |
| THE Holiday Emporium Ltd | Administrative & support | 2020 |
| THE Holistic Dispensary Ltd | Extraterritorial | 2021 |
| THE Homeostatic Organisation Ltd | Professional & scientific | 2024 |
| THE Hpier Limited | Real estate | 2023 |
| THE Impossible Bottle Limited | Professional & scientific | 2021 |
| THE IP Business Ltd | Professional & scientific | 2017 |
| THE IT Department Solutions Limited | Information & communication | 2010 |
| THE Jumping Flea Trading Company Limited | Wholesale & retail | 2015 |
| THE Kemps Management Company Limited | Households | 2022 |
| THE Kiln Engineer Ltd | Manufacturing | 2021 |
| THE Kirkpatrick Partnership LLP | | 2006 |
| THE Landlords Alliance Ltd | Administrative & support | 2024 |
| THE Langton Arms Limited | Hospitality | 2001 |
| THE Lawn Consultant Ltd | Administrative & support | 2024 |
| THE Lincoln Agency Limited | Professional & scientific | 2025 |
| THE Link Magazines Dorset Ltd | Information & communication | 2011 |
| THE Luminary Compass Limited | Education | 2025 |
| THE Maltsters (Totnes) Ltd | Hospitality | 2025 |
| THE Maternity Coach Ltd | Administrative & support | 2021 |
| THE Mattoni Group Limited | Real estate | 2016 |
| THE Men's Health Clinic Ltd | Health & social care | 2018 |
| THE Mindful Architech Limited | Information & communication | 2024 |
| THE Mindset Works Ltd | Professional & scientific | 2025 |
| THE Mini Handball League Ltd | Education | 2022 |
| THE Minster Partnership Commercial Limited | Financial services | 2017 |
| THE Minster Partnership Group Limited | Financial services | 2018 |
| THE Minster Partnership Limited | Financial services | 2013 |
| THE Mulberrys' Residents Association Limited | Households | 2014 |
| THE Nail Room Ltd | Other services | 2023 |
| THE Oddfellows Arms Limited | Hospitality | 2024 |
| THE Old Inn Pub/Pizza Company Ltd | Hospitality | 2016 |
| THE Old Powerhouse C.I.C. | Hospitality | 2021 |
| THE Old School Nursery (Property) Ltd | Real estate | 2025 |
| THE Open Art House Ltd | Hospitality | 2026 |
| THE Organic Hair Cafe Ltd | Other services | 2013 |
| THE Panda Future Group Limited | Wholesale & retail | 2023 |
| THE Paper Retreat Limited | Real estate | 2025 |
| THE Pemble Partnership LLP | | 2015 |
| THE Penny TAP Ltd | Hospitality | 2016 |
| THE Perfect Source Limited | Professional & scientific | 2017 |
| THE Pet Shop Guys (Southbourne) Ltd | Financial services | 2002 |
| THE Pet Shop Guys (Winton) Ltd | Wholesale & retail | 2015 |
| THE Piggy Bank Storage Company Limited | Administrative & support | 2014 |
| THE Pines (Dorset) RTM Company Limited | Households | 2023 |
| THE Pinnacles Management Company Limited | Households | 2001 |
| THE Poole Wellbeing Practice Limited | Health & social care | 2025 |
| THE Practical Bookkeeper Ltd | Extraterritorial | 2024 |
| THE Prep Centre Ltd | Transport & logistics | 2023 |
| THE Print Agency Design and Print Limited | Manufacturing | 2016 |
| THE Private EAR Clinic Limited | Health & social care | 2017 |
| THE Realisation Foundation C.I.C. | Administrative & support | 2024 |
| THE Restaurant at LA Fosse Limited | Hospitality | 2013 |
| THE Rheumatologist Ltd | Health & social care | 2010 |
| THE Shaftesbury Trustee Company NO.1 Limited | Financial services | 2018 |
| THE Shaftesbury Trustee Company NO.2 Limited | Financial services | 2018 |
| THE Shoe Casa Ltd | Information & communication | 2017 |
| THE Short and Sweet Company Ltd | Hospitality | 2015 |
| THE Small Business Shop Limited | Extraterritorial | 2021 |
| THE Solar Company Holdings Ltd | Financial services | 2026 |
| THE Stone Zone Group Ltd | Wholesale & retail | 2026 |
| THE Switch LAB Limited | Professional & scientific | 2024 |
| THE Three Okefords Preservation Society Limited | Other services | 2008 |
| THE Travel VOX Limited | Professional & scientific | 2024 |
| THE Tree Wishes Ltd | Agriculture & fishing | 2022 |
| THE Unknown Unknowns Limited | Information & communication | 2015 |
| THE Walnut Grove (Dorchester) Limited | Hospitality | 2019 |
| THE Walnut of Knowledge Ltd | Information & communication | 2024 |
| THE Ward Collection Limited | Information & communication | 2026 |
| THE Warmer Group (Holdings) Ltd | Construction | 2025 |
| THE Warmer Group Ltd | Construction | 1988 |
| THE Wellbeing Agency Ltd | Other services | 2018 |
| THE White Ridge Partnership Limited | Information & communication | 2009 |
| THE Wild Whisk Ltd | Hospitality | 2025 |
| THE Wimborne PIG Ltd | Hospitality | 2019 |
| THE Wireless Hub Limited | Information & communication | 2012 |
| THE Wisemanagement Group Limited | Administrative & support | 2017 |
| THE YP Index Ltd | Administrative & support | 2016 |
| Thehy Limited | Information & communication | 2022 |
| Theitcompanybiz Ltd | Information & communication | 2024 |
| Theler Marine Ltd | Construction | 2024 |
| Thetis CG Limited | Financial services | 2019 |
| THF Propco Limited | Real estate | 2022 |
| Think 3E Limited | Professional & scientific | 2024 |
| Think Edge Limited | Professional & scientific | 2023 |
| Think Positive Limited | Information & communication | 2019 |
| Thirdmove Limited | Information & communication | 2005 |
| Thirty Four Stores Ltd | Wholesale & retail | 2010 |
| Thisisnathanward Ltd | Administrative & support | 2023 |
| Thomas Patrick Clarke Limited | Manufacturing | 2014 |
| Thornford Management Company Limited | Households | 2021 |
| Thoroughly Good Consulting Limited | Information & communication | 2015 |