| Studio Kurious Ltd | Professional & scientific | 2026 |
| Studio Mathias Clottu Limited | Other services | 2017 |
| Studio Moxi Ltd | Arts & recreation | 2021 |
| Studious House Ltd | Professional & scientific | 2024 |
| Studyhome (NO.192) Limited | Extraterritorial | 1993 |
| Sturminster LVA LLP | | 2017 |
| Superley Seeds Ltd. | Professional & scientific | 1999 |
| Superplants Holdings Limited | Financial services | 2024 |
| Superplants Limited | Administrative & support | 1996 |
| Surrey Plans and Design Limited | Professional & scientific | 1998 |
| Susannah FOX Limited | Real estate | 2021 |
| Sussex Fields (Management) Limited | Households | 1996 |
| Sustainable Eco Energy Management Ltd | Water & waste | 2017 |
| SW Galleries Limited | Construction | 2014 |
| Sweet Sodium Ltd | Professional & scientific | 2014 |
| Swef C.I.C. | Administrative & support | 2022 |
| Swiggeroux Music Limited | Information & communication | 1971 |
| SWS Financial Limited | Financial services | 2014 |
| Syannis Ltd | Health & social care | 2019 |
| SYD Hosie Racing Ltd | Arts & recreation | 2022 |
| Sydi Limited | Real estate | 2023 |
| Synct Fitness Ltd | Information & communication | 2025 |
| Synergos C Limited | Professional & scientific | 2022 |
| Synergy Support Ltd | Professional & scientific | 2003 |
| T & D Investments Limited | Real estate | 2012 |
| T & D Rentals Limited | Hospitality | 2012 |
| T D and J Hague Property Limited | Real estate | 2003 |
| T J Hartwell Limited | Professional & scientific | 2018 |
| T Mears Ltd | Professional & scientific | 2015 |
| T&M Enterprises (SW) Limited | Hospitality | 2024 |
| T.Gas Services Plumbing and Heating Ltd | Construction | 2023 |
| T.R. (Two) Limited | Households | 1991 |
| Taladsa Ltd | Health & social care | 2023 |
| Talbot Capes Ltd | Other services | 2020 |
| Tania Robinson Studio Ltd | Construction | 2022 |
| Task FM Limited | Information & communication | 2018 |
| Taurus & LEO Ltd | Administrative & support | 2025 |
| Tavistock LVA LLP | | 2017 |
| Taylor Milne Ltd | Real estate | 2024 |
| Telos Protection Limited | Other services | 2024 |
| Tenancy Wizard Ltd | Information & communication | 2020 |
| Tennis 1 Limited | Arts & recreation | 2015 |
| Tequini Ltd | Professional & scientific | 2013 |
| Tham DEE CIC | Administrative & support | 2024 |
| THE 333 Limited Partnership | | 2006 |
| THE Alchemy Project Limited | Professional & scientific | 2024 |
| THE Bay Tree Cleaning Company Ltd | Professional & scientific | 2006 |
| THE Blackmore & Sparkford Vale Company Limited | Administrative & support | 2004 |
| THE Brand Stylist Ltd | Professional & scientific | 2016 |
| THE Business School (UK) Ltd. | Professional & scientific | 2014 |
| THE Cheese Market Limited | Wholesale & retail | 2014 |
| THE Danish Pantry Ltd | Hospitality | 2026 |
| THE Dorset Homeware Company Limited | Wholesale & retail | 2021 |
| THE Drinksmith Sherborne Ltd | Wholesale & retail | 2023 |
| THE English Goat Dairy Ltd | Agriculture & fishing | 2023 |
| THE Florence Leather Collection Ltd | Wholesale & retail | 2014 |
| THE Green Approach Limited | Professional & scientific | 2003 |
| THE Hairy PAW Limited | Other services | 2024 |
| THE Hunt Recruitment Ltd | Administrative & support | 2025 |
| THE Ice House Studio Limited | Arts & recreation | 1987 |
| THE Kennels Management Company Limited | Households | 2021 |
| THE Lambert Group Limited | Real estate | 1988 |
| THE Letting Agent (Dorset) Ltd | Real estate | 2016 |
| THE Local Boiler Company Limited | Construction | 2019 |
| THE Londonderry Collieries Limited | Real estate | 1995 |
| THE Manual Brewing Company Ltd | Manufacturing | 2023 |
| THE Mermaid Sherborne Ltd | Hospitality | 2022 |
| THE Mixing Bowl Limited | Manufacturing | 2010 |
| THE Noise Bureau Ltd | Information & communication | 2013 |
| THE Old Glove Factory Limited | Households | 2000 |
| THE Old Granary (Shaftesbury) Management Company Limited | Households | 2004 |
| THE Other Fellow Limited | Information & communication | 2014 |
| THE Rawlings Partnership Ltd | Transport & logistics | 2021 |
| THE Sanctuary Beauty Limited | Other services | 2011 |
| THE Sherborne Girls Foundation | Education | 2015 |
| THE Ship Inn (Shaftesbury) Ltd | Hospitality | 2018 |
| THE Skinsmith Limited | Wholesale & retail | 2006 |
| THE Small Perfect Company Ltd | Professional & scientific | 2006 |
| THE Sycamores Management (NO.1) Limited | Households | 1990 |
| THE Sycamores Management (NO.2) Limited | Households | 1991 |
| THE Toy Barn Sherborne Ltd | Wholesale & retail | 2011 |
| THE Trough Limited | Hospitality | 2021 |
| THE Turing Centre Project Sherborne Limited | Administrative & support | 2025 |
| THE Tutorhood Ltd | Education | 2020 |
| THE Visual Art Trader Limited | Information & communication | 2006 |
| THE Walton Building Management Company Limited | Households | 2005 |
| THE Weaver’S Hand Ltd | Wholesale & retail | 2025 |
| THE Word Consultancy Limited | Professional & scientific | 2015 |
| Third Dimension Limited | Information & communication | 1997 |
| Thompy TV Limited | Information & communication | 2023 |
| Thorners Holdings Limited | Financial services | 2019 |
| Thousand Lines Ltd | Information & communication | 2020 |
| Three Counties Groundworks Ltd | Construction | 2023 |
| Three Wishes (Dorset) Ltd | Hospitality | 2006 |
| Three Wishes Sherborne Ltd | Hospitality | 2024 |
| Throgmorton Corporate Services Limited | Extraterritorial | 2015 |
| Tickle Tours Limited | Professional & scientific | 2009 |
| Tidcombe Hall LVA LLP | | 2017 |
| Tidcombe Holdings LLP | | 2018 |
| Tigcraft Engineering Ltd | Professional & scientific | 2017 |