| DD Travel Management Ltd | Administrative & support | 2024 |
| Debt IT Sorted Limited | Financial services | 2020 |
| DEC Trading Limited | Wholesale & retail | 2013 |
| Delian Financial Services Ltd | Financial services | 2019 |
| Deliver-It Couriers Ltd | Transport & logistics | 2023 |
| Digital Somerset CIC | Other services | 2019 |
| Dorset Highways Limited | Extraterritorial | 2004 |
| Double Bear Limited | Hospitality | 2022 |
| DPF Management Consulting Limited | Professional & scientific | 2022 |
| Dracula Films Ltd | Information & communication | 2014 |
| Drayton Court (Somerton) Management Company Limited | Real estate | 2019 |
| Driftwood Trevong Ltd | Real estate | 2012 |
| Duke of York (Shepton Beauchamp) Ltd | Hospitality | 2024 |
| DWR Management Services Ltd | Professional & scientific | 2012 |
| Dynamiq Group Ltd | Administrative & support | 2016 |
| E7 Rearing Limited | Agriculture & fishing | 2007 |
| Earnshill Events Limited | Hospitality | 2024 |
| Echelon AI Ltd | Information & communication | 2025 |
| Ecos Renew Limited | Construction | 2008 |
| ED Holiday Letting Ltd | Real estate | 2023 |
| ED Pratt Limited | Information & communication | 2025 |
| Edit My Things Ltd | Professional & scientific | 2026 |
| Edwards Construction South West Limited | Construction | 2003 |
| Effervesce Ltd | Professional & scientific | 2016 |
| Electrical Batchelor Ltd | Construction | 2023 |
| Eleet Woodworks Limited | Manufacturing | 2026 |
| ELEV8TE Ltd | Administrative & support | 2023 |
| Empathy Associates Ltd | Professional & scientific | 2023 |
| English Homes.Co.Uk Ltd | Real estate | 2009 |
| Equine Health Centre Ltd | Construction | 2006 |
| Escher Consulting Limited | Information & communication | 2002 |
| Estela Llanos Personal Training Ltd | Other services | 2019 |
| Ethic Street Pizza Limited | Hospitality | 2016 |
| Exclusive Brands Direct Limited | Wholesale & retail | 2022 |
| Exit AI Ltd | Information & communication | 2025 |
| FAB Films London Limited | Information & communication | 2016 |
| Fair Go Coffee Roasters Ltd | Manufacturing | 2025 |
| Fanny Hatstand Community Interest Company | Arts & recreation | 2014 |
| Featherstone Estate Limited | Administrative & support | 2004 |
| Feedmasters Limited | Extraterritorial | 2003 |
| Feorge Plant and Fabrications Limited | Manufacturing | 1998 |
| Fertan UK Ltd | Wholesale & retail | 2018 |
| Film Filter Limited | Professional & scientific | 2022 |
| Find Peace of Mind I.T. Limited | Information & communication | 2011 |
| Find Peace of Mind Limited | Professional & scientific | 2007 |
| Fine and Dandy Pubs Limited | Hospitality | 2016 |
| Fitcoach Limited | Health & social care | 2023 |
| Fletcher International Ltd | Manufacturing | 2018 |
| Fluidity Films 2024 Limited | Information & communication | 2024 |
| Fluidity Films Limited | Information & communication | 2000 |
| Futurity Designs Ltd | Professional & scientific | 2008 |
| FVH Property Ltd | Real estate | 2024 |
| G.S. Edmunds Limited | Construction | 2002 |
| Garden House Rest Home Limited | Health & social care | 1999 |
| Giftinc Limited | Wholesale & retail | 2018 |
| Gingerfred CIC | Arts & recreation | 2012 |
| Glebe Yard Management Limited | Households | 2001 |
| Glow Ballooning Ltd | Arts & recreation | 2023 |
| Gore Scaffolding Ltd | Construction | 2017 |
| Great BOW Yard Management Limited | Households | 2004 |
| Greenstock Refrigeration Limited | Administrative & support | 1998 |
| Group Analysis South West | Education | 2000 |
| Grow Forward 1806 Limited | Financial services | 2023 |
| GT Training Limited | Education | 2025 |
| GTI Logistics Limited | Transport & logistics | 2011 |
| GWD Consulting Engineers Limited | Professional & scientific | 2017 |
| Gwerek Solutions Limited | Professional & scientific | 2025 |
| H & S Development (Holdings) Limited | Construction | 2017 |
| H & S Development (Somerton) Limited | Construction | 2017 |
| H R Lang Consultancy Ltd | Professional & scientific | 2021 |
| H. & S. Developments Limited | Construction | 1985 |
| Hamdown Management Services Limited | Professional & scientific | 1999 |
| Handc Piling Limited | Construction | 2012 |
| Harbour Tavern Mevagissey Ltd | Extraterritorial | 2025 |
| Harcourt Wells Holdings Ltd | Professional & scientific | 2018 |
| Harding & Gore Ltd | Real estate | 2018 |
| Harp Estate Holdings Limited | Construction | 2025 |
| Harry's Cider Company Limited | Manufacturing | 2012 |
| Harvest Masters Limited | Professional & scientific | 2001 |
| Hassock Moor Childcare & OUT of School Club Limited | Health & social care | 2020 |
| Hassock Moor Childcare Limited | Health & social care | 2004 |
| Haymoors (Somerset) Limited | Extraterritorial | 1987 |
| Haymoors Limited | Wholesale & retail | 2023 |
| Health Innovation Support Limited | Professional & scientific | 2017 |
| Heart of the Levels Limited | Extraterritorial | 2008 |
| Heartwood Cabinet Makers Ltd | Manufacturing | 2008 |
| Heathfield Developments (Somerset) Limited | Construction | 2002 |
| Hifi Addiction Limited | Wholesale & retail | 2007 |
| HJM Properties SW Ltd | Real estate | 2023 |
| Hobbs Partnership Limited | Administrative & support | 2014 |
| Home in the Country Limited | Hospitality | 2025 |
| Hornbeam Partners Ltd | Agriculture & fishing | 2022 |
| Horsey Properties Ltd | Real estate | 2025 |
| Houlahan Associates Limited | Information & communication | 2019 |
| House Clearance and Cleaning SW Limited | Administrative & support | 2023 |
| Howland Trading Co. Ltd. | Wholesale & retail | 1999 |
| Idle Hands Ltd | Construction | 2025 |
| Integrati Consultants Ltd | Professional & scientific | 2009 |
| Intrinseca Limited | Professional & scientific | 2016 |
| J R Cosser Ltd | Financial services | 2026 |