| 1-4 Mill Gardens Management Company Ltd | Households | 2021 |
| 2I Projects Limited | Professional & scientific | 2023 |
| 30X30 United Kingdom CIC | Administrative & support | 2025 |
| Abbey Pharmacy (Sherborne) Limited | Wholesale & retail | 2001 |
| Aboch 100 Ltd | Wholesale & retail | 2025 |
| ACH Electrical & Plumbing Limited | Construction | 2017 |
| Advanced Dive Electronics Limited | Manufacturing | 1998 |
| Aldon Eventing Limited | Arts & recreation | 2014 |
| Alex Macewen Ltd | Other services | 2018 |
| ALL YOU CAN BE Ltd | Education | 2023 |
| Altior Vita LLP | | 2009 |
| AM5YES Ltd | Wholesale & retail | 2025 |
| ARC Accountancy and Bookkeeping Ltd | Professional & scientific | 2021 |
| Armac Capital Ltd | Financial services | 2015 |
| Art Unlimited Ltd | Arts & recreation | 2019 |
| Artists With Heart CIC | Wholesale & retail | 2025 |
| Assured Design Services Limited | Other services | 2005 |
| AT First Light Performance Ltd | Education | 2026 |
| Axminster Design and Build Limited | Construction | 2023 |
| B.E.G. Electrical Limited | Construction | 2011 |
| Barefoot Developments Ltd | Construction | 2020 |
| Beaminster Preschool Limited | Education | 2003 |
| Beaminster Sheds Limited | Wholesale & retail | 2021 |
| Beaminster Ventures Ltd | Hospitality | 2025 |
| Beaminster Yarn Barton Community Centre Ltd | Information & communication | 2012 |
| Beer Garden Co (SW) Limited | Manufacturing | 2017 |
| Bgfdj Ltd | Hospitality | 2026 |
| Birch Davison Ltd | Other services | 2017 |
| BMT Services SW Ltd | Agriculture & fishing | 2021 |
| Boella Grooming Services Ltd | Other services | 2024 |
| Boldshield Limited | Professional & scientific | 1999 |
| Bridport Kitchens Limited | Manufacturing | 2015 |
| Brinsham Farm Cottages Management Company Limited | Households | 2004 |
| Broad Building Contractors Limited | Construction | 2016 |
| Broadwindsor Community PUB Ltd | Hospitality | 2021 |
| Brunoise Hospitality Ltd | Hospitality | 2025 |
| Burstock Ltd. | Professional & scientific | 2015 |
| Burstock Maritime Ltd | Professional & scientific | 2026 |
| Burstock-Ieg Consortium Limited | Professional & scientific | 2022 |
| Burton Equestrian Partners Limited | Arts & recreation | 2022 |
| BY West Hill House Ltd | Hospitality | 2025 |
| C J Equine Services Limited | Agriculture & fishing | 2018 |
| C&S Southwest Limited | Water & waste | 2020 |
| C.C.Warren Limited | Manufacturing | 2013 |
| Caddie Express (Maidenhead) Limited | Transport & logistics | 2021 |
| Candida Investments Limited | Real estate | 1961 |
| Chedington Events Limited | Hospitality | 2015 |
| Chedington Limited | Financial services | 2020 |
| Chidcombe Limited | Hospitality | 2014 |
| Choicegold Limited | Professional & scientific | 1998 |
| Chris Chapman Limited | Manufacturing | 2014 |
| CJM Art Ltd | Professional & scientific | 2024 |
| Clarkham Cross Ltd | Agriculture & fishing | 2023 |
| Classic Car & Caravan Storage Ltd | Real estate | 2019 |
| Clayoquot Ltd | Financial services | 2024 |
| CM Strategies Limited | Professional & scientific | 2025 |
| Colt Repair Systems (U.K.) Limited | Professional & scientific | 1979 |
| Combat Edge Rugby Limited | Professional & scientific | 2014 |
| Complement Interiors Limited | Extraterritorial | 2003 |
| Complexium Consulting Ltd | Professional & scientific | 2025 |
| Country Construction Services Ltd | Construction | 2022 |
| Country Electrics Ltd | Construction | 2022 |
| Craddock Renewables Ltd | Construction | 2024 |
| Craig Monks Ltd | Wholesale & retail | 2020 |
| CS Aesthetics Ltd | Health & social care | 2017 |
| Daraggs Ltd | Wholesale & retail | 2023 |
| Dashfast Limited | Information & communication | 1984 |
| Dexters of Beaminster Limited | Hospitality | 2019 |
| Difference Engine Marketing Ltd | Professional & scientific | 2019 |
| Digital Investor Intelligence Group Ltd | Information & communication | 2024 |
| Dog Fish Limited | Other services | 1994 |
| Dorset Rehabilitation Ltd | Other services | 2026 |
| Dorset Retail Ltd | Wholesale & retail | 2011 |
| DSD Mobile Tyres Ltd | Manufacturing | 2015 |
| Dunn Roaming Ltd | Administrative & support | 2023 |
| Each & Every Ltd | Manufacturing | 2015 |
| Edesty Limited | Wholesale & retail | 2026 |
| Edmonds Flooring Ltd | Wholesale & retail | 2025 |
| Eecs Investments Ltd | Real estate | 2025 |
| EEZY360 Ltd | Professional & scientific | 2023 |
| Eleanor Soanes Interior Design Limited | Arts & recreation | 2011 |
| Ellie GUY Equestrian Limited | Arts & recreation | 2015 |
| ETC Advisory Ltd | Professional & scientific | 2020 |
| F W Huxter Groundworks and Civil Engineering Limited | Construction | 2008 |
| F W Huxter Plant Hire Limited | Administrative & support | 2013 |
| Fairway South West Properties Ltd | Construction | 2021 |
| Four Ashes Accountants Limited | Professional & scientific | 2022 |
| Francis Bugler Limited | Wholesale & retail | 1948 |
| Frankly Handy Limited | Administrative & support | 2021 |
| Fuel Storage Tanks Ltd | Wholesale & retail | 2025 |
| Full Spectrum Supply Co. Ltd | Wholesale & retail | 2025 |
| Fungimental Mushrooms Ltd | Agriculture & fishing | 2025 |
| G K Paget Ltd | Construction | 2011 |
| G&T Garden Tours Ltd | Administrative & support | 2024 |
| Ganda Create Limited | Information & communication | 2024 |
| Gerrard Enterprises Limited | Financial services | 2010 |
| Gesw Ltd | Professional & scientific | 2020 |
| Great Guns Marketing Limited | Professional & scientific | 2019 |
| Greenest Energy SW Ltd | Energy | 2011 |
| Greenwood Motorhomes Ltd | Administrative & support | 2020 |