| Digs & Dens Ltd | Real estate | 2018 |
| Dinton Holdings Limited | Real estate | 2025 |
| Diplomatic Transhipment Services Limited | Transport & logistics | 2010 |
| Dishesbydaisy Ltd | Professional & scientific | 2022 |
| Display Supplies Limited | Construction | 2022 |
| Divine Projects South East Ltd | Construction | 2017 |
| Division Digital Limited | Professional & scientific | 2021 |
| Dj&P Asset Management Limited | Real estate | 2025 |
| DJB Wine and Food Developments Limited | Hospitality | 2014 |
| DL Aero Limited | Professional & scientific | 2008 |
| DM DEC Services Ltd | Construction | 2024 |
| DMI Global Marketing UK Limited | Information & communication | 2025 |
| DML Commercials Limited | Wholesale & retail | 2018 |
| DMR Carpentry Ltd | Construction | 2023 |
| Dog Training Brighton Limited | Other services | 2015 |
| Dog Walking Field Danehill Ltd | Real estate | 2026 |
| Dog Walking Field Burton Ltd | Real estate | 2026 |
| Dog Walking Field Chelmsford Ltd | Real estate | 2026 |
| Dog Walking Field Colchester Ltd | Real estate | 2026 |
| Dog Walking Field Great Oakley Ltd | Real estate | 2026 |
| Dog Walking Field Leiston Ltd | Real estate | 2026 |
| Dog Walking Field Ratby Ltd | Real estate | 2026 |
| Dog Walking Field Tamworth Ltd | Real estate | 2026 |
| Dog Walking Field Telford Ltd | Real estate | 2026 |
| Dog Walking Field Whepstead Ltd | Real estate | 2026 |
| Dogrocket Ventures Limited | Financial services | 2021 |
| Dolloso Healthcare Ltd | Administrative & support | 2018 |
| Don'T Look Down Rope Access Ltd | Construction | 2016 |
| Donald Collins Holdings Limited | Real estate | 2020 |
| Dorgan Developments & Lettings Ltd | Real estate | 2025 |
| Dormans Roads Limited | Professional & scientific | 2025 |
| Dovetail Homes Ltd. | Construction | 1997 |
| DPF Fixer Ltd | Wholesale & retail | 2019 |
| DPF Specialist Ltd | Wholesale & retail | 2023 |
| DPR Consultancy Ltd | Professional & scientific | 2024 |
| Drain IT Solutions Ltd | Water & waste | 2025 |
| Draw & Detail Limited | Professional & scientific | 2015 |
| Dreamality Ltd | Health & social care | 2023 |
| Dresda Ltd | Arts & recreation | 2014 |
| Drew & Co. Closing Ltd | Administrative & support | 2026 |
| Drewbell Pizza Ltd | Hospitality | 2025 |
| Drewgard Limited | Manufacturing | 2018 |
| Drews Auto Solution Limited | Wholesale & retail | 2011 |
| Drjonasmed Ltd | Health & social care | 2024 |
| Dryside Limited | Administrative & support | 2006 |
| DS Bewley Ltd | Construction | 2022 |
| DS Practical Ltd | Administrative & support | 2020 |
| DSP Roofing and Construction Ltd. | Construction | 2010 |
| Dsruptiv Limited | Information & communication | 2013 |
| DSS Management (UK) Ltd | Manufacturing | 2014 |
| DSW Building Solutions Ltd | Construction | 2019 |
| Duke Window Services Limited | Construction | 2010 |
| Dunnings Mills Management Company Limited | Households | 2014 |
| Dunphy-Moriel Legal Services Ltd | Administrative & support | 2021 |
| Durabuild Carpentry Ltd | Construction | 2016 |
| Durabuild Contractors Ltd | Construction | 2023 |
| Duty of Care 100 Ltd | Health & social care | 2020 |
| DW Building Electrical & Cattle Ltd | Construction | 2026 |
| DXN Consultancy Limited | Professional & scientific | 2024 |
| E G Automotives Ltd | Wholesale & retail | 2026 |
| Eagle Comps Limited | Administrative & support | 2025 |
| East Ferry Consultants Ltd | Professional & scientific | 2009 |
| East Ferry Products Ltd | Wholesale & retail | 2019 |
| East Grinstead Anaesthetic Services LLP | | 2019 |
| East Grinstead Bathrooms & Kitchens Limited | Wholesale & retail | 2005 |
| East Grinstead Children’S Choir Ltd | Arts & recreation | 2024 |
| East Grinstead Community Bonfire C.I.C. | Other services | 2023 |
| East Grinstead Garden Rooms Ltd | Construction | 2025 |
| East Grinstead Glass Works Limited | Wholesale & retail | 1975 |
| East Grinstead HCW Ltd | Other services | 2022 |
| East Grinstead Lawns Ltd | Administrative & support | 2008 |
| East Grinstead Memorial Estate Limited | Real estate | 1949 |
| East Grinstead Model Engineering Society Limited | Professional & scientific | 2023 |
| East Grinstead Muslim Community Centre Limited | Education | 2025 |
| East Grinstead Padel Limited | Arts & recreation | 2024 |
| East Grinstead Plant and Tool Hire Limited | Administrative & support | 1987 |
| East Grinstead Rugby Football Club Limited | Arts & recreation | 2009 |
| East Grinstead Sports Club Ltd | Arts & recreation | 2001 |
| East Grinstead Town FC Trading Ltd | Wholesale & retail | 2020 |
| East Grinstead Tyre Service Limited | Wholesale & retail | 1936 |
| East Grinstead Vehicle Care Ltd | Wholesale & retail | 2023 |
| East Grinstead Windows Ltd | Construction | 2015 |
| East London Photobooth Ltd | Professional & scientific | 2023 |
| East Surrey Developments Limited | Real estate | 2025 |
| East Surrey Homes Limited | Real estate | 2025 |
| East Surrey Limited | Construction | 2025 |
| East to West Events & Consultancy Limited | Administrative & support | 2010 |
| Eastmead Industries G2 Ltd | Construction | 2016 |
| Eastmead Industries Limited | Real estate | 1973 |
| Eastmead Oakley Green Limited | Real estate | 2025 |
| Eat's Easy UK Ltd | Hospitality | 2022 |
| Ecda Ltd | Professional & scientific | 2025 |
| Eco Friendly Heating & Flooring Systems Limited | Construction | 2025 |
| ECO3 International Limited | Professional & scientific | 2009 |
| Ecopure Ltd | Water & waste | 2026 |
| Ecostim Limited | Manufacturing | 2018 |
| Ecoverse Planet Ltd | Administrative & support | 2021 |
| Educare I.T. Limited | Information & communication | 2008 |
| Eebhosting Ltd | Information & communication | 2012 |
| Eedc Ltd | Wholesale & retail | 2024 |