| Strauss Partners Limited | Administrative & support | 2010 |
| Streeters Carpets & Beds Ltd | Wholesale & retail | 1986 |
| STRIVE2 Ltd | Transport & logistics | 2017 |
| Studio Acre Limited | Professional & scientific | 2023 |
| Stumpman Film & FX Ltd | Public administration | 2025 |
| Sturfit | Arts & recreation | 2012 |
| Sturminster Homes Limited | Real estate | 2011 |
| Sturminster Market Limited | Wholesale & retail | 2021 |
| Sturminster Newton Building Supplies Ltd | Wholesale & retail | 2019 |
| Sturminster Newton Community Building Trust | Arts & recreation | 2004 |
| Sturminster Newton United Football Club | Arts & recreation | 2004 |
| Sturminster Newton Valeting Centre Ltd | Administrative & support | 2024 |
| Sturminster Tyres and Repairs Ltd | Wholesale & retail | 2023 |
| Sunlite (London) Limited | Construction | 2017 |
| Sunshine Chocolate Ltd | Manufacturing | 2022 |
| Super Silent Discos Ltd | Administrative & support | 2024 |
| SWM and Supplies Ltd | Construction | 2020 |
| Symonds Auto Salvage Limited | Wholesale & retail | 2003 |
| T B Lambert Ltd | Construction | 2004 |
| T D J Hunt Agricultural Services Ltd | Manufacturing | 2022 |
| T M B a (Dorset) Limited | Professional & scientific | 2013 |
| T.I. Miller & Partners Limited | Agriculture & fishing | 2007 |
| Tarzan Ltd | Professional & scientific | 2013 |
| THE 'Sentinel' Waggon Works (1920) Limited | Manufacturing | 2003 |
| THE Building Company (Wessex) Limited | Construction | 2008 |
| THE Chocolate Artisan Ltd | Manufacturing | 2025 |
| THE Crown (Management) Stalbridge Limited | Households | 2021 |
| THE Dorset Chocolate Company Ltd | Hospitality | 2013 |
| THE Dorset Dairy Co Ltd | Manufacturing | 2016 |
| THE Dorset MUD Run Limited | Arts & recreation | 2025 |
| THE FIR Tree Trading Company Limited | Real estate | 2024 |
| THE Paddock Pantry Ltd | Wholesale & retail | 2011 |
| THE Really Cool Company Limited | Administrative & support | 2007 |
| THE Seagull Trading Company Limited | Construction | 2018 |
| THE Strange Apothecary Foundation CIC | Education | 2025 |
| THE Strange Collective Ltd | Other services | 2019 |
| THE Tiny Pony Project Ltd | Education | 2026 |
| THE Yorkshire Forge Limited | Manufacturing | 2020 |
| Thirsty Gannet Ltd | Hospitality | 2015 |
| Thornhill Deer Management Ltd | Arts & recreation | 2012 |
| Thornhill Farming Limited | Real estate | 2014 |
| Thornhill Property Investments Limited | Real estate | 2014 |
| Timepiece Restoration Limited | Other services | 2002 |
| Timeshot Limited | Professional & scientific | 1988 |
| Tollendal Estates Ltd | Real estate | 2021 |
| Triumph Competitions Ltd | Other services | 2025 |
| Trovare Limited | Extraterritorial | 2004 |
| True Form Therapy Ltd | Other services | 2025 |
| Twenty SIX Two Limited | Professional & scientific | 2011 |
| UK Motorbike Tours Limited | Administrative & support | 2017 |
| Under the Stairs Music Limited | Information & communication | 2013 |
| Unstrung Films Limited | Information & communication | 2009 |
| Upper Street Financial Planning Limited | Financial services | 2015 |
| Uzun Chef Ltd | Hospitality | 2025 |
| Vale Cars Limited | Transport & logistics | 2003 |
| Valinor Intelligence Ltd | Professional & scientific | 2023 |
| VB Lewis Building Design Limited | Professional & scientific | 2003 |
| Vehicle Industry Consultants Limited | Administrative & support | 2003 |
| Velout Ltd | Wholesale & retail | 2022 |
| Veritax Limited | Professional & scientific | 1991 |
| Very Dirty Laundry Ltd. | Wholesale & retail | 2024 |
| Villanova Wessex Ltd | Households | 2025 |
| Vining Bros Building Limited | Construction | 2005 |
| Vision FR Limited | Administrative & support | 2010 |
| Visual Corruption Limited | Professional & scientific | 2026 |
| Visual Engineering Services Limited | Wholesale & retail | 2000 |
| Volition Music Limited | Arts & recreation | 2023 |
| Vsmx Limited | Wholesale & retail | 2011 |
| Walsh Investco Ltd | Financial services | 2021 |
| Waterfront Systems Limited | Construction | 1995 |
| Watson Wight Limited | Other services | 2002 |
| Weareducked Ltd | Wholesale & retail | 2021 |
| Wessex Electrics Ltd | Construction | 2021 |
| Wessex Floor Care Ltd | Administrative & support | 2022 |
| Westford Services Limited | Professional & scientific | 2020 |
| Westree Storage Limited | Administrative & support | 2018 |
| Weymouth 51 Ltd | Manufacturing | 2019 |
| WH Hotel Ltd | Hospitality | 2019 |
| Whataview Holdings Ltd | Financial services | 2021 |
| Whipround Carpet Edging Limited | Manufacturing | 2024 |
| Whitchurch Canonicorum Community Forum | Professional & scientific | 2012 |
| Wildcat Future Solutions Ltd | Professional & scientific | 2018 |
| Williams Florist (Stalbridge) Limited | Wholesale & retail | 2012 |
| Woodbridge Farm Partnership Limited | Agriculture & fishing | 2008 |
| Woodrow Developments (Dorset) Limited | Construction | 2020 |
| Woodside Court Management Company (Bournemouth) Limited | Households | 2005 |
| Woodside Court Management Company (Southbourne) Limited | Households | 2006 |
| YEW Tree Holdings Ltd | Hospitality | 2025 |
| Zaraya Travel Group Limited | Administrative & support | 2026 |
| ZEN Tax Consultants Limited | Education | 2009 |
| ZEO Hub Ltd | Construction | 2025 |
| ZEO Investments Ltd | Financial services | 2025 |