| Talis Learning Limited | Information & communication | 2016 |
| Tangerine Global Ltd | Administrative & support | 2013 |
| Tant Highcliffe Ltd | Real estate | 2013 |
| Tarr Holdings Limited | Professional & scientific | 2000 |
| Task Artisan Builders Ltd | Construction | 2012 |
| Tasker Properties Limited | Real estate | 2025 |
| Taste Sensation Ltd | Other services | 2017 |
| Tatalinco Limited | Administrative & support | 2025 |
| TAU Marketing Solutions Ltd | Professional & scientific | 2024 |
| Taylor Made Designs (UK) Limited | Manufacturing | 2008 |
| Taylor Made Designs Group Limited | Financial services | 2025 |
| Tboom Limited | Professional & scientific | 2014 |
| Tbrh Properties Limited | Hospitality | 2007 |
| TCB Properties Ltd | Real estate | 2020 |
| TCC Dorset Ltd | Construction | 2026 |
| Teachertastic Ltd | Education | 2022 |
| Tech Brands International Limited | Wholesale & retail | 2018 |
| Teddy Elder Care Limited | Health & social care | 2020 |
| Telnergy Limited | Professional & scientific | 2002 |
| Tenantsee Ltd | Information & communication | 2022 |
| Tenga Engineering Co. Limited | Wholesale & retail | 1955 |
| Teri Clarke Limited | Health & social care | 2015 |
| Terra Glide Mobility UK Ltd | Wholesale & retail | 2025 |
| Terrafirma Maintenance (Southern) Limited | Administrative & support | 2013 |
| TF Chemtex Ltd | Construction | 2015 |
| TGM Leisure LLP | | 2024 |
| THE Advertising Board Ltd | Professional & scientific | 2025 |
| THE Aesthetics Room Dorset Ltd | Health & social care | 2025 |
| THE AGA Exchange Limited | Extraterritorial | 2017 |
| THE Artist's Retreat Limited | Real estate | 2024 |
| THE Aviators (Crossways) Limited | Households | 2022 |
| THE Barbers at Number One Ltd | Other services | 2017 |
| THE Beach HUT Cafe Limited | Hospitality | 2011 |
| THE Bounce Department Inflatable Hires and Events Ltd | Administrative & support | 2019 |
| THE Bournemouth (Twynham)Rtm Company Limited | Real estate | 2009 |
| THE Break Surf Ltd | Wholesale & retail | 2025 |
| THE Buck & Beard Barber Co Ltd | Other services | 2023 |
| THE Bunker Cafe Bar Limited | Hospitality | 2022 |
| THE Business Gift Division Limited | Professional & scientific | 1999 |
| THE Cedarwoods Lodge Ltd | Real estate | 2021 |
| THE Cedarwoods Management Ltd | Professional & scientific | 2021 |
| THE Celtic Entertainment Centre Limited | Hospitality | 1996 |
| THE Christchurch Plumbing Co Limited | Construction | 2003 |
| THE Clay Studio Ltd | Hospitality | 2006 |
| THE Compass RTM Company Limited | Households | 2021 |
| THE Content Producers Ltd | Information & communication | 2026 |
| THE Copse Management Company (Tuckton) Limited | Households | 2014 |
| THE Cornelia Collections Ltd | Manufacturing | 2020 |
| THE Courtyard Owners Association Limited | Households | 1998 |
| THE Creative Key Ltd | Administrative & support | 2016 |
| THE Creatives Talk Ltd | Information & communication | 2023 |
| THE Dorset Blueberry Company Ltd | Agriculture & fishing | 2024 |
| THE Emporium at Redcliffe Ltd | Wholesale & retail | 2024 |
| THE Event PA Ltd | Arts & recreation | 1999 |
| THE Final CUT Film Company Limited | Information & communication | 2013 |
| THE Fish Stall Ltd | Wholesale & retail | 2026 |
| THE Fortune Centre of Riding Therapy | Education | 1995 |
| THE Free Range Cracker Company Limited | Manufacturing | 2020 |
| THE Friends of the Lighthouse Community Interest Company | Manufacturing | 2019 |
| THE Genie Planners Ltd | Information & communication | 2023 |
| THE Gentleman's Parlour Ltd | Administrative & support | 2019 |
| THE Glen (Walkford) Residents Management Company Ltd | Households | 2020 |
| THE Green (Burton) Management Company Limited | Households | 2004 |
| THE Green TLC Community Interest Company | Manufacturing | 2020 |
| THE Gutter Company Dorset Limited | Construction | 2016 |
| THE Gym TIN Limited | Arts & recreation | 2018 |
| THE Hotline Group Limited | Wholesale & retail | 1998 |
| THE House of Styling Ltd | Arts & recreation | 2021 |
| THE HUT Club Collective Ltd | Hospitality | 2026 |
| THE IA & SDS Group Ltd | Administrative & support | 2016 |
| THE Ironing Butler Ltd | Extraterritorial | 2016 |
| THE Leadership & Sales Academy Limited | Professional & scientific | 2013 |
| THE LOG Store Limited | Agriculture & fishing | 2019 |
| THE Longevity Group Ltd | Wholesale & retail | 2025 |
| THE Movement Market Ltd | Wholesale & retail | 2025 |
| THE Mudeford Club Limited | Extraterritorial | 2015 |
| THE Muscateer 2012 Ltd | Real estate | 2021 |
| THE Nail Bar 69 Ltd | Other services | 2026 |
| THE Nail Bar BH23 Ltd | Other services | 2023 |
| THE New Forest Pony Breeding and Cattle Society | Administrative & support | 1997 |
| THE New Lodge (Christchurch) Management Company Limited | Households | 2010 |
| THE Oak Framers SW Ltd | Construction | 2023 |
| THE Old Glove Factory (Shaftesbury) Management Company Limited | Real estate | 2025 |
| THE Old Print Room Ltd | Real estate | 2023 |
| THE Orange Group Limited | Education | 1995 |
| THE Origin Rooms Ltd | Real estate | 2025 |
| THE Orland Group Limited | Real estate | 2021 |
| THE Parkinson Partnership LLP | | 2015 |
| THE Pet Resort Limited | Hospitality | 2004 |
| THE Photo Lounge Limited | Arts & recreation | 2013 |
| THE Plastic Tank Company Limited | Manufacturing | 2011 |
| THE Playhouse Collective Ltd | Arts & recreation | 2025 |
| THE Priory Hair Company Limited | Other services | 2024 |
| THE Professional Alternative Group Limited | Information & communication | 2020 |
| THE Realistic Investor Ltd | Professional & scientific | 2014 |
| THE Rehab LAB Ltd | Education | 2023 |
| THE Reign National Ltd | Other services | 2014 |
| THE Renewable Energy Saving Group Ltd | Construction | 2025 |
| THE Residency Group Limited | Real estate | 2024 |
| THE Retirement Cafe LLP | | 2023 |