| DRD Digital Marketing Ltd | Information & communication | 2023 |
| Dream 2 Rise Ltd | Wholesale & retail | 2025 |
| Dream Celebrant Limited | Professional & scientific | 2023 |
| Dream Grid Constructions Ltd | Construction | 2025 |
| Dream HUT Builders Limited | Construction | 2025 |
| Dream Values Limited | Wholesale & retail | 2025 |
| Dreamcatcher Comics Limited | Arts & recreation | 2016 |
| Dreamclean Cleaning Services Limited | Arts & recreation | 2001 |
| Dreamstar Investments Limited | Professional & scientific | 1983 |
| Dreamybeds Limited | Manufacturing | 2026 |
| Dressmaker Fashion Limited | Wholesale & retail | 2022 |
| Driftwood Group Limited | Hospitality | 2023 |
| Driftwood Restaurant Ltd | Hospitality | 2023 |
| Driftwood SS1 Limited | Hospitality | 2023 |
| Drilland Ltd | Manufacturing | 2025 |
| Drinkstone Energy Centre Limited | Energy | 2021 |
| Drive & Go Limited | Transport & logistics | 2002 |
| Driveaway Limited | Wholesale & retail | 2025 |
| Drivecom Recruitment Ltd | Administrative & support | 2025 |
| Drivershields UK Limited | Wholesale & retail | 2003 |
| Dropnex Enterprises Ltd | Wholesale & retail | 2025 |
| Dropnshop Ltd | Wholesale & retail | 2025 |
| DRP Music Ltd | Information & communication | 2025 |
| Drury Brothers Limited | Professional & scientific | 1959 |
| Drurycourt Limited | Construction | 1981 |
| Dry-Clad Solutions Limited | Administrative & support | 2025 |
| Drylining & Partitioning Systems Limited | Wholesale & retail | 1988 |
| Drylinq Ltd | Construction | 2019 |
| DS Construction Building Limited | Construction | 2025 |
| DS Heating Limited | Construction | 2016 |
| DS World Ltd | Wholesale & retail | 2025 |
| Dslr Ltd | Information & communication | 2025 |
| DST Consultancy Ltd | Education | 2008 |
| DT London Properties Ltd | Real estate | 2026 |
| DTE Scaffolding and Safety Netting Limited | Administrative & support | 1998 |
| DTL (Suffolk) Limited | Construction | 2006 |
| DTM Heating & Plumbing Ltd | Construction | 2016 |
| Duaa Property Investment Ltd | Real estate | 2025 |
| Ducati Chelmsford Ltd | Wholesale & retail | 2020 |
| Duckking Cafe Limited | Hospitality | 2021 |
| Dudley Smith Partnership Limited | Professional & scientific | 2003 |
| Dukechoice Limited | | 1983 |
| Dunemar Limited | Information & communication | 2023 |
| Dunmow Alarm & Telecoms Limited | Manufacturing | 2006 |
| Dunmow Tyres Limited | Other services | 2026 |
| Duplication Centre Limited | Information & communication | 2004 |
| Duratem Supported Living Ltd | Health & social care | 2019 |
| Duronic Foundation Limited | Extraterritorial | 2016 |
| Dusktime Enterprises Limited | Professional & scientific | 1995 |
| DVK Limited | Professional & scientific | 2003 |
| Dwelling Solutions Limited | Real estate | 2006 |
| Dyalyn Services Ltd | Construction | 2014 |
| Dyer and Crowe Limited | Administrative & support | 2004 |
| Dyers Mead Management Limited | Real estate | 2000 |
| Dymaxel Limited | Wholesale & retail | 2026 |
| Dynamic Corporation Limited | Arts & recreation | 1993 |
| Dynamic Details Ltd | Wholesale & retail | 2023 |
| Dynamic Mortgages Ltd | Financial services | 2016 |
| Dynamite Digital Agency Ltd | Information & communication | 2023 |
| Dynetek Limited | Extraterritorial | 2021 |
| Dyslexicare Limited | Education | 2005 |
| D’Chums Medicals Limited | Health & social care | 2024 |
| E & R Modplan Limited | | 1973 |
| E & S Maintenance Ltd | Construction | 2015 |
| E Commerc Solution Limited | Wholesale & retail | 2026 |
| E Johnson & Sons Limited | Manufacturing | 2005 |
| E Marcus & SON Limited | Real estate | 1942 |
| E TAG Solutions Ltd | Information & communication | 2026 |
| E&C Living Ltd | Real estate | 2026 |
| E&C Properties Sourcing Ltd | Administrative & support | 2026 |
| E&H Retirement Properties Limited | Real estate | 2021 |
| E-Bayze Enterprises Ltd | Wholesale & retail | 2025 |
| E-Central Appointments Ltd | Information & communication | 1998 |
| E-Commerce Shopify Solutions Ltd | Wholesale & retail | 2026 |
| E-Gaming Mart Ltd | Wholesale & retail | 2024 |
| E-Smartsourcing Limited | Administrative & support | 2005 |
| E. G. Engineering Limited | Administrative & support | 1997 |
| E. Schwier & Sons Limited | Agriculture & fishing | 1952 |
| E.A.S.S.C. Limited | Arts & recreation | 2002 |
| E.And K.Benton Limited | Agriculture & fishing | 1964 |
| E.C Vent Ltd | Construction | 2019 |
| E.C. (Management Services) Limited | Administrative & support | 1998 |
| E.C. Freight (UK) Limited | Information & communication | 2001 |
| E.E. Ulph & Company Limited | Agriculture & fishing | 1953 |
| E.G.L. Homecare Limited | Manufacturing | 1979 |
| E.G.White & Sons(North Ockendon)Limited | Agriculture & fishing | 1954 |
| E.H. Roberts-Penet Group Limited | Administrative & support | 2002 |
| E.L. Lucas Limited | Construction | 1954 |
| E.M.K. Limited | Transport & logistics | 1980 |
| E.W. Brooks & Sons(Builders)Limited | | 1964 |
| E.W. Moore & SON Limited | Wholesale & retail | 1948 |
| E1 London Commercial Properties Ltd | Real estate | 2026 |
| E15 Global Fashion Links Ltd | Wholesale & retail | 2022 |
| EA Fixes Ltd | Construction | 2023 |
| Eagermaster Limited | | 1986 |
| Eagle Crafts Ltd | Wholesale & retail | 2026 |
| Eagle Express London Ltd | Transport & logistics | 2019 |
| Eagle Foundations Limited | | 1988 |
| Eagle Grip Management Ltd | Real estate | 2022 |
| Eagled-Eye Medicals Ltd | Health & social care | 2023 |