| Dorset Lets Limited | Real estate | 2026 |
| Dorset M & E Ltd | Construction | 2010 |
| Dorset Mews Management Company Limited | Households | 1987 |
| Dorset Plus Ltd | Information & communication | 2025 |
| Dorset Pumps Ltd | Manufacturing | 2013 |
| Dorset Saucery Ltd | Manufacturing | 2024 |
| Dorset Timber Framing Ltd | Construction | 2014 |
| Dorset Vape Ltd | Wholesale & retail | 2026 |
| Dorset Vehicles Limited | Wholesale & retail | 2023 |
| Dorset Woodworks Limited | Construction | 2026 |
| Dorsetfest CIC | Arts & recreation | 2024 |
| Downeast Software Limited | Administrative & support | 2026 |
| Downwood Holidays Ltd | Real estate | 2019 |
| DP Holdings (South) Ltd | Real estate | 2018 |
| DR Alice Plant Ltd | Health & social care | 2024 |
| DR Mayhem Cards Ltd | Wholesale & retail | 2026 |
| Dragonfly Networks Limited | Information & communication | 2002 |
| Drain Unblock Services Ltd | Other services | 2021 |
| DT11 Trading Ltd | Administrative & support | 2006 |
| Dtss (Dorset) Ltd | Construction | 2015 |
| Durweston Mill Limited | Hospitality | 2004 |
| Dylan Deutrom Ltd | Education | 2023 |
| E Bikes 4U Ltd | Other services | 2020 |
| EAQ Luccombe Community Interest Company | Administrative & support | 2018 |
| East Devon Automotive Ltd | Wholesale & retail | 2013 |
| Eastcombe Limited | Professional & scientific | 2018 |
| Easy Tiger Group Ltd | Wholesale & retail | 2024 |
| Ebcd Ltd | Professional & scientific | 2025 |
| ECOM90 Limited | Information & communication | 2001 |
| Edenis Family Wellness Centre Ltd. | Health & social care | 2021 |
| Edmund & Sons Butchers Ltd | Manufacturing | 2026 |
| Edsuma Limited | Professional & scientific | 2016 |
| Edu-Serve Limited | Arts & recreation | 1994 |
| Effortless Alignment Limited | Other services | 2026 |
| EJB Site Services Ltd | Professional & scientific | 2022 |
| Elbis Electrical Ltd | Construction | 2022 |
| Electric Fishing Technical Services Ltd | Arts & recreation | 2016 |
| Elegant Joinery Ltd | Manufacturing | 2022 |
| Elisheba Ltd | Wholesale & retail | 2023 |
| Elite Vehicle Servicing and Air Conditioning Ltd | Wholesale & retail | 2023 |
| Ellbee Capital Services Ltd | Construction | 2014 |
| Elliots for Hair Limited | Other services | 2003 |
| Ellis Brothers 2026 Ltd | Real estate | 2026 |
| Ellis Refrigeration & Air Conditioning Ltd | Manufacturing | 2024 |
| Empery & Co. Limited | Professional & scientific | 2012 |
| Empery Estates Limited | Real estate | 2023 |
| Enamel Strategies Ltd | Professional & scientific | 2025 |
| Enchanted Interiors Limited | Wholesale & retail | 2017 |
| Engineering Proposals and Project Delivery Limited | Professional & scientific | 2022 |
| Ensbury Management Company Limited | Households | 2026 |
| EQ Health and Wellbeing Community Interest Company | Health & social care | 2004 |
| Equi+Poise Biomechanics (Global) Limited | Agriculture & fishing | 2016 |
| Equi+Poise Competitions Limited | Arts & recreation | 2020 |
| Equi+Poise Farrier (Global) Limited | Agriculture & fishing | 2026 |
| Equi+Poise Farrier (UK) Limited | Agriculture & fishing | 2017 |
| Equi+Poise Group Holdings Limited | Agriculture & fishing | 2026 |
| Equi+Poise Livery Limited | Agriculture & fishing | 2020 |
| Euro American Exports Ltd | Wholesale & retail | 2024 |
| European Air Law Association | Other services | 2007 |
| Evans Asbestos Ltd | Construction | 2017 |
| Evans Business Services Limited | Professional & scientific | 2014 |
| Evolution Netzero Ltd | Energy | 2025 |
| Evolution Skate Parks Limited | Construction | 2004 |
| Executive & Personal Assistants Association | Other services | 2014 |
| Fairfield Consultants Limited | Professional & scientific | 2024 |
| Fairmead 1960 Limited | Extraterritorial | 2015 |
| Farwell Property Investments Limited | Real estate | 2016 |
| Felltec Tree Services LLP | | 2022 |
| Fen-Tiger Classics Limited | Wholesale & retail | 2002 |
| Fernandes Homes Ltd | Real estate | 2025 |
| Festival Shops Ltd | Wholesale & retail | 2015 |
| Fhog Ltd | Education | 2010 |
| Fibre River Ltd | Financial services | 2019 |
| File Check Ltd | Information & communication | 2025 |
| Find & Fit Limited | Wholesale & retail | 2025 |
| Finer Lifestyle Experiences Limited | Professional & scientific | 2008 |
| Finscutz Ltd | Other services | 2026 |
| Fire + Fjord Limited | Other services | 2025 |
| Fireline Limited | Wholesale & retail | 2000 |
| Firstclassbarber Ltd | Other services | 2024 |
| Fish Hoek Limited | Health & social care | 2023 |
| Fit to Ride Ltd | Wholesale & retail | 2012 |
| Flovaly Ltd | Information & communication | 2025 |
| Focus AV Solutions Ltd | Wholesale & retail | 2022 |
| Fonteneau Groundworks Limited | Construction | 2016 |
| Footiebuild Limited | Construction | 2016 |
| Footsie 100 Limited | Wholesale & retail | 2007 |
| Fordeco Limited | Professional & scientific | 2024 |
| Forest Side Lakes Ltd | Agriculture & fishing | 2020 |
| Forge Strength & Fitness Limited | Arts & recreation | 2022 |
| Fortis TFM Limited | Administrative & support | 2026 |
| Foster's Meadow Management Company Limited | Professional & scientific | 2003 |
| Fourteen L Ltd | Information & communication | 2026 |
| FOX ST Limited | Mining & quarrying | 2024 |
| Frampton Developments Ltd | Construction | 2012 |
| Francesca Jane Consulting Ltd | Information & communication | 2015 |
| Freight Bookers (Worldwide) Ltd | Transport & logistics | 2007 |
| Fresh Decks Ltd | Real estate | 2004 |
| From Dorset With Love Limited | Manufacturing | 2012 |
| Fv-Uk Services Limited | Administrative & support | 2013 |