| Ds&T Limited | Information & communication | 2018 |
| Ds-Intl Limited | Information & communication | 2013 |
| DSB Associates Limited | Education | 2021 |
| DSD Utilities Ltd | Water & waste | 2026 |
| Dsgd (Ireland) Limited | Financial services | 2019 |
| Dslt Holdings Limited | Financial services | 2021 |
| Dslt Limited | Construction | 2012 |
| DSM Floors Limited | Construction | 2013 |
| DSM Transportation Limited | Transport & logistics | 2020 |
| Dspa Ltd | Real estate | 2021 |
| DT Focus Business Limited | Financial services | 2014 |
| DT Management Consultancy Ltd | Professional & scientific | 2017 |
| DT Support Services Ltd | Construction | 2017 |
| Dt&Ness Logistics Ltd | Transport & logistics | 2024 |
| DTA Tuning London Ltd | Wholesale & retail | 2020 |
| DTJ Ltd | Manufacturing | 2016 |
| DTS Traffic Services Ltd | Administrative & support | 2025 |
| DU COQ a L'Ane Ltd | Information & communication | 2013 |
| DUA Lofts Ltd | Construction | 2020 |
| Dual Horns Studio Ltd | Information & communication | 2016 |
| Dual Transport Ltd | Transport & logistics | 2020 |
| DUB Bros Ltd | Construction | 2025 |
| Dubai Estate Market Ltd | Real estate | 2017 |
| Duet Coffee Ltd | Hospitality | 2020 |
| Duke Travel Limited | Administrative & support | 2009 |
| Dukhan Asset Management Ltd | Real estate | 2020 |
| Dulku Developments Limited | Real estate | 2025 |
| Dumitru Iulian Ltd | Transport & logistics | 2024 |
| Dunamis Technologies Ltd | Administrative & support | 2017 |
| Dunbar Court (Bromley) Management Company Limited | Real estate | 2000 |
| Dunmall Construction Limited | Construction | 2012 |
| DUO Glazing Limited | Construction | 2025 |
| Duob Homes Ltd | Real estate | 2024 |
| Dust Free Cleaning Services Ltd | Other services | 2023 |
| Dust Free Support Services Limited | Professional & scientific | 2014 |
| Dvanguard Ltd | Administrative & support | 2020 |
| DVM Marketing Limited | Professional & scientific | 2025 |
| DVO Biotech Limited | Professional & scientific | 2023 |
| Dvsk Ltd | Wholesale & retail | 2024 |
| DW Commercials Vehicles Services Ltd | Wholesale & retail | 2019 |
| DW Motorcare Ltd | Wholesale & retail | 2020 |
| Dwellingz Limited | Real estate | 2022 |
| DWR Property Services Limited | Real estate | 2024 |
| Dyana Ltd | Wholesale & retail | 2026 |
| Dycut Limited | Construction | 2013 |
| DYD Legal Consultancy Ltd | Professional & scientific | 2021 |
| Dyer & Co Holdings Ltd | Financial services | 2018 |
| Dylans Barber Ltd | Other services | 2026 |
| Dymoton Ltd | Education | 2023 |
| Dynador Ltd | Construction | 2012 |
| Dynamath Ltd | Information & communication | 2026 |
| Dynamic Building Services Limited | Manufacturing | 2007 |
| Dynamic Paving & Landscaping Ltd | Construction | 2025 |
| Dynamic Shopfit & Construction Ltd | Construction | 2024 |
| Dynamicsplus Ltd | Education | 2020 |
| Dyslexia Correction and Support Centre Limited | Education | 2019 |
| Dzastyle Ltd | Administrative & support | 2017 |
| DZC Properties Limited | Real estate | 2025 |
| E & C Trading Limited | Wholesale & retail | 2005 |
| E & E Werry Limited | Information & communication | 2014 |
| E Alexis Limited | Administrative & support | 2026 |
| E and C Estates Ltd | Real estate | 2014 |
| E D Cruz Ltd | Health & social care | 2023 |
| E I T Holdings Limited | Administrative & support | 2006 |
| E Jeavans Associates Ltd | Education | 2017 |
| E KU Ltd | Administrative & support | 2020 |
| E Lucia Heating & Plumbing Limited | Construction | 2014 |
| E Mcgregor Properties Ltd | Real estate | 2026 |
| E Sims Accountancy Limited | Professional & scientific | 2009 |
| E Thulir Ltd | Information & communication | 2014 |
| E Tube Food Ltd | Wholesale & retail | 2013 |
| E West Haulage Limited | Transport & logistics | 2014 |
| E&E Enterprises Limited | Transport & logistics | 2021 |
| E-Flo Drains and Contracting Services Ltd | Water & waste | 2020 |
| E-Klaz Immigration Services Limited | Professional & scientific | 2026 |
| E-Klaz Profit Limited | Education | 2011 |
| E-Klaz Property Limited | Real estate | 2023 |
| E-Learning Online Ltd | Administrative & support | 2017 |
| E-Media Consultants Limited | Information & communication | 2020 |
| E-Star Homes Ltd | Real estate | 2025 |
| E.J.Elgood,Limited | Financial services | 1915 |
| E.W.T. (Dartford) Limited | Transport & logistics | 1994 |
| E2 Hospitality Ltd | Hospitality | 2024 |
| E3A Construction Ltd | Construction | 2017 |
| EA Endeavours Ltd | Wholesale & retail | 2022 |
| EA Legal and Commercial Limited | Professional & scientific | 2022 |
| EA Wright Holdings Ltd | Financial services | 2021 |
| Eaac Ltd | Professional & scientific | 2022 |
| Eagle Autos VW Limited | Wholesale & retail | 2004 |
| Eagle FM & Consultancy Limited | Information & communication | 2019 |
| Eagle Global Europe ( UK) Limited | Mining & quarrying | 2025 |
| Eagle Homes (London) Ltd | Construction | 2013 |
| Eagle Nest Properties Ltd | Real estate | 2026 |
| Eagles Properties (Kent) Limited | Real estate | 2008 |
| Eagles White Estates Ltd | Real estate | 2024 |
| EAL Digital Ltd | Wholesale & retail | 2022 |
| Earls Court Freehold Limited | Real estate | 2018 |
| Ease AA Resources Ltd | Information & communication | 2021 |
| Ease Accounting Associates UK Limited | Information & communication | 2020 |
| East Hill Construction Ltd | Construction | 2022 |