| Dressage Sales UK Limited | Wholesale & retail | 2015 |
| Dressers Electrical Limited | Construction | 2014 |
| DRG Plumbing Services Ltd | Construction | 2026 |
| Drib Ltd | Wholesale & retail | 2026 |
| Drift Farm Services LLP | | 2024 |
| Drift Innovation Ltd | Administrative & support | 2006 |
| Drink System Services Limited | Professional & scientific | 2019 |
| Drips Plumbing & Heating Limited | Construction | 2019 |
| Driscoll & Daughters Property Ltd | Real estate | 2022 |
| Drive More School of Motoring Ltd | Education | 2024 |
| Driveshaft Parts Ltd | Wholesale & retail | 2008 |
| Drmb Plumbing and Heating Ltd | Construction | 2015 |
| Drone CAM Ltd | Information & communication | 2021 |
| Drop Music Limited | Information & communication | 2019 |
| Drujp Holdings Ltd | Financial services | 2026 |
| Drujp South Croydon Properties Ltd | Real estate | 2026 |
| Dryforge Ltd | Professional & scientific | 2025 |
| Dryice Edila Ltd | Administrative & support | 2022 |
| DS Cambridge House 2 LLP | | 2022 |
| DS Cambridge House LLP | | 2021 |
| DSA Production Services Limited | Other services | 1978 |
| Dscnt Ltd | Information & communication | 2024 |
| Dscvrd Music Ltd | Administrative & support | 2024 |
| DSJ Construction Limited | Construction | 2025 |
| DSM Coatings Ltd | Construction | 2025 |
| DSM Travel and Construction Ltd | Administrative & support | 2017 |
| DSP Babicare Ltd. | Health & social care | 2020 |
| DSR Biomaterials Limited | Professional & scientific | 2020 |
| DTE Properties Ltd | Real estate | 2024 |
| Dubai Shawarmore Ltd | Hospitality | 2025 |
| Dubarry Limited | Wholesale & retail | 1977 |
| Dugstone Limited | Professional & scientific | 1977 |
| Dulwich Gardens Ltd | Extraterritorial | 2023 |
| Dulwich International Co., Ltd | Wholesale & retail | 2012 |
| Dulwich Property Management Limited | Real estate | 2015 |
| Dulwich Water Treatment Services Limited | Water & waste | 2011 |
| Durable Oak Properties Ltd | Real estate | 2023 |
| Durayi Limited | Professional & scientific | 2019 |
| Durley Lodge Management Company Limited | Households | 2018 |
| Durlin Estates Limited | Households | 2016 |
| Durum Ltd | Hospitality | 2026 |
| Durz Ltd | Administrative & support | 2026 |
| Duyapay Limited | Financial services | 2025 |
| Dvipie Ltd | Construction | 2024 |
| Dwaycareservices Limited | Administrative & support | 2024 |
| DWC Technology Ltd | Administrative & support | 2024 |
| Dwell (London) Limited | Construction | 2008 |
| Dwmw Holdings Ltd | Financial services | 2024 |
| Dying Breed Ltd | Wholesale & retail | 2025 |
| Dymag Specialist Services Limited | Wholesale & retail | 2003 |
| Dymag Specialist Tackle Limited | Wholesale & retail | 2018 |
| Dymchurch Car Centre Limited | Wholesale & retail | 2003 |
| Dynamic Project Delivery Services Limited | Information & communication | 2025 |
| Dyslexia Association of Bexley, Bromley, Greenwich and Lewisham | Other services | 2006 |
| DZ Property Ltd | Real estate | 2021 |
| Dzine Properties Limited | Real estate | 2017 |
| E & I Imports Ltd | Wholesale & retail | 2025 |
| E G F Consulting Ltd | Professional & scientific | 2023 |
| E Guei Limited | Health & social care | 2023 |
| E J Property Management Ltd | Financial services | 2018 |
| E U GAS Services Limited | Construction | 2009 |
| E&E Active Ltd | Arts & recreation | 2026 |
| E&E Transport Services Ltd | Transport & logistics | 2022 |
| E&G Property Enhancement Ltd | Construction | 2021 |
| E&R Construction Ltd | Construction | 2014 |
| E&S Life Ltd | Professional & scientific | 2017 |
| E-Kinectenergy Ltd | Construction | 2022 |
| E-Man Solutions International Limited | Administrative & support | 2007 |
| E-Peak Group Ltd | Construction | 2026 |
| E.A Recovery Limited | Wholesale & retail | 2026 |
| E.D.T Protiling Limited | Construction | 2019 |
| E.J. Martin & Co,Limited | | 1964 |
| E.J.R. Developments Limited | Construction | 2000 |
| E.M.Turner Investments Limited | Real estate | 1961 |
| E.W. Harwood (Builders) Limited | | 1976 |
| E2T Proprietary Solutions Limited | Financial services | 2025 |
| EA Elit Building Limited | Other services | 2017 |
| EA Power Limited | Construction | 2018 |
| Each One Teach One Recruitment & Training Solutions in Care Ltd | Education | 2012 |
| Eagle Builders Ltd | Construction | 2015 |
| Eagle EYE Property Holdings Ltd | Real estate | 2024 |
| Eagle EYE Property Ltd | Real estate | 2018 |
| Eagle EYE Property Management Ltd | Real estate | 2022 |
| Eagle Post Limited | Financial services | 2022 |
| Eagle Wharf (London) RTM Company Limited | Real estate | 2025 |
| Eagles Express Limited | Transport & logistics | 2019 |
| Eagles Services Limited | Professional & scientific | 2024 |
| Earthculture Landscaping Limited | Administrative & support | 2021 |
| EAS Property Services Ltd | Professional & scientific | 2013 |
| Eashan Patel Ltd | Real estate | 2022 |
| Eason Digital Ltd | Professional & scientific | 2024 |
| East Anglia Pharmacy Company Limited | Wholesale & retail | 2024 |
| East Gate House Residents Company Limited | Real estate | 2014 |
| East Property Management Limited | Real estate | 2003 |
| East Residential Holdings Limited | Financial services | 2024 |
| East-West Travel Management Company Limited | Administrative & support | 2004 |
| Eastcombe Avenue Ltd | Real estate | 2023 |
| Eastdown Court Limited | Households | 1981 |
| Easterbrook Place Management Limited | Households | 2022 |
| Eastern Electrics London Ltd | Construction | 2026 |