| Drelly Limited | Health & social care | 2024 |
| Dress UP Baby Ltd | Wholesale & retail | 2017 |
| DRG Coins & Antiquities Ltd | Wholesale & retail | 2021 |
| DRG Plastering & Cleaning Ltd | Construction | 2025 |
| DRG Vehicle Hire Ltd | Transport & logistics | 2024 |
| Drillbur Solutions Ltd | Real estate | 2026 |
| Drive Again Dynamics Limited | Wholesale & retail | 2024 |
| Drive Straight Limited | Other services | 2023 |
| Driveclean Valeting Ltd | Administrative & support | 2026 |
| Driving for Money Ltd | Transport & logistics | 2018 |
| Drkt Investments Ltd | Real estate | 2017 |
| DRL Services Ltd | Professional & scientific | 2015 |
| DRT Automotive Ltd | Manufacturing | 2025 |
| Drywall 4 Interiors Ltd | Construction | 2021 |
| DS Real Estate Ventures Ltd | Real estate | 2026 |
| Dsdm Consulting Ltd | Information & communication | 2015 |
| Dska Construction Ltd | Construction | 2025 |
| DST Investments Limited | Financial services | 2012 |
| Dsvg Facade Limited | Construction | 2012 |
| Dsvg UK Ltd | Construction | 2021 |
| DT Carpentry Ltd | Manufacturing | 2022 |
| Dtruth Media Ltd | Information & communication | 2026 |
| Dualshine Cleaning Co Ltd | Administrative & support | 2025 |
| Dubai Movements Ltd | Wholesale & retail | 2025 |
| Dubem Obidinanwa Medical Services Ltd | Health & social care | 2023 |
| Dublaying Brickwork Limited | Construction | 2022 |
| Duck NG Duck Ltd | Hospitality | 2022 |
| Duck Soup London Limited | Administrative & support | 2019 |
| Ducketts Mead Flats Management Limited | Real estate | 1999 |
| Ducketts Mead Management Company Limited | Households | 2018 |
| Duckpin Arena Limited | Arts & recreation | 2023 |
| Dudley Court (Friern Park) Management Company Limited | Households | 1967 |
| Dukes GT Ltd | Other services | 2024 |
| Dukias Medical Limited | Health & social care | 2024 |
| Dulai Asset Management Ltd | Real estate | 2018 |
| Dulca Transport Ltd | Transport & logistics | 2017 |
| Duman Media Ltd | Information & communication | 2018 |
| Dunbar 31 Limited | Administrative & support | 2017 |
| Dungaz Ltd | Health & social care | 2024 |
| Dunmore Road (Abingdon) Management Company Limited | Households | 2021 |
| Dunzek Ltd | Health & social care | 2022 |
| DUO Capital Ltd | Real estate | 2022 |
| DUO Facades Ltd | Construction | 2022 |
| Duran Trading Ltd | Other services | 2019 |
| Dusty Beulah Holding Ltd | Professional & scientific | 2022 |
| Dutch Uncles Limited | Manufacturing | 2024 |
| Duzajico Limited | Health & social care | 2025 |
| DV Online Ltd | Other services | 2025 |
| DV Team Build Ltd | Construction | 2018 |
| DVM Construction Management Ltd | Construction | 2019 |
| DVM Consultancy Ltd | Information & communication | 2009 |
| DVM Decorating Ltd | Construction | 2024 |
| DVM Homes Ltd | Real estate | 2023 |
| DVN Property Management Ltd | Real estate | 2022 |
| Dvokes Limited | Health & social care | 2024 |
| DW Film Services Ltd | Other services | 2025 |
| DW Mechanical Handling Limited | Manufacturing | 2017 |
| DW Specialist Services Ltd | Administrative & support | 2025 |
| Dwello Platform Ltd | Information & communication | 2025 |
| DWW Design Limited | Professional & scientific | 2016 |
| DXN Shopping Ltd | Manufacturing | 2025 |
| Dykens Limited | Real estate | 2024 |
| Dylesse Electrical Company Limited | Wholesale & retail | 1983 |
| DYN Moments Ltd | Other services | 2026 |
| Dyna Consults Limited | Health & social care | 2020 |
| Dynamic Entertainment Ltd | Arts & recreation | 2017 |
| Dynamic J&J Ltd | Administrative & support | 2025 |
| Dynamic Ventilation Services Ltd | Construction | 2026 |
| Dynamix Consultants Ltd | Wholesale & retail | 2013 |
| DYP Services Limited | Transport & logistics | 2016 |
| Dziwota Construction Limited | Construction | 2016 |
| Dziwota Investment Ltd | Construction | 2021 |
| D’Optimist Limited | Health & social care | 2022 |
| E B Daku Building Services Ltd | Construction | 2017 |
| E B Electrical Services Ltd | Construction | 2021 |
| E B General Building Services Ltd | Construction | 2026 |
| E D Onochie Ltd | Health & social care | 2025 |
| E Nest Ltd | Wholesale & retail | 2025 |
| E Perfect Interior Ltd | Construction | 2018 |
| E&D Assets Ltd | Real estate | 2025 |
| E&D Constructions Ltd | Construction | 2026 |
| E&D Medical Solutions Limited | Health & social care | 2025 |
| E&E Fast Courier Limited | Transport & logistics | 2019 |
| E&M Twins Limited | Wholesale & retail | 2025 |
| E&T Holdings Limited | Financial services | 2019 |
| E&T Properties Limited | Real estate | 2019 |
| E-Pro Constructions Ltd | Construction | 2021 |
| E. Dickson Ltd | Health & social care | 2025 |
| E.D. Cannon Holdings Limited | Professional & scientific | 1972 |
| E1 Brick Lane Ltd | Financial services | 2025 |
| E8 Fitness Ltd | Education | 2026 |
| EA Consulting Limited | Information & communication | 2022 |
| EA Dynamix Ltd | Construction | 2024 |
| EA Shop Ltd | Wholesale & retail | 2020 |
| EAA & Auto Ltd | Wholesale & retail | 2015 |
| Eagle Professionals Limited | Administrative & support | 2014 |
| Eagle Waterproofing Ltd | Construction | 2013 |
| Eagleman Ltd | Transport & logistics | 2020 |
| Eagles Cliff Villa Limited | Other services | 2015 |
| Eagles Close Management Company Limited | Households | 2014 |