| District Cleaning Services Limited | Administrative & support | 2010 |
| Division M LLP | | 2018 |
| DJN Consultancy Limited | Professional & scientific | 2012 |
| DJR Financial Ltd | Professional & scientific | 2022 |
| Dltm Property Holdings Limited | Wholesale & retail | 2016 |
| DM Creators Ltd | Administrative & support | 2024 |
| DMD Architecture Limited | Professional & scientific | 2002 |
| Dmtighe Limited | Professional & scientific | 2016 |
| Dnexus Limited | Information & communication | 2025 |
| DNR Associates Limited | Real estate | 2007 |
| Doctors Direct Ltd | Information & communication | 2022 |
| Dodgems (2010) Ltd | Arts & recreation | 2011 |
| Donaldson Mews Estate Management Limited | Real estate | 2025 |
| Dosimetry Works Limited | Professional & scientific | 2008 |
| Dove Management Consultants Limited | Professional & scientific | 2011 |
| Dovetails Vintage Limited | Wholesale & retail | 2012 |
| Dower House Residential Property Limited | Households | 2001 |
| Downsview Guesthouse Ltd | Real estate | 2015 |
| Downton Associates Limited | Professional & scientific | 2006 |
| DPP Construction LLP | | 2016 |
| DPP Enterprises Limited | Information & communication | 2004 |
| DR JO Steer & Associates Ltd | Health & social care | 2023 |
| DR Logistic Solutions Ltd | Transport & logistics | 2024 |
| DR Logistics (South East) Limited | Other services | 2019 |
| DR Ruslana Popelyuk Limited | Health & social care | 2014 |
| Dragon Inn Leighton Buzzard Limited | Hospitality | 2010 |
| Drakensberg Holdings Ltd | Information & communication | 2026 |
| Dreadful Penny Productions Ltd | Information & communication | 2025 |
| Dream Properties Worldwide Limited | Real estate | 2024 |
| Driftin Dreamers Limited | Administrative & support | 2015 |
| DRK Services Limited | Construction | 2018 |
| Drysdale Consultancy Limited | Information & communication | 2012 |
| DS Elmbridge Ltd | Construction | 2025 |
| Dspo Limited | Professional & scientific | 2022 |
| DTA Business Management Ltd | Professional & scientific | 2022 |
| Dtbtech Limited | Professional & scientific | 2013 |
| DTS Engineering Ltd | Professional & scientific | 2024 |
| Duaris Limited | Construction | 1961 |
| DUNK1 Ltd | Arts & recreation | 2015 |
| Dunottar School Foundation Limited | Education | 1961 |
| DUO Ecommerce Ltd | Wholesale & retail | 2022 |
| Durbinterim Limited | Professional & scientific | 2019 |
| DVP Consultants Ltd | Transport & logistics | 2015 |
| DYD Properties Ltd | Construction | 2025 |
| Dynamic Customer Solutions Ltd | Professional & scientific | 2015 |
| Dynamic Strategies Global Limited | Professional & scientific | 2024 |
| Dynamic Strategies Legal Limited | Professional & scientific | 2024 |
| Dynamics Cars Ltd | Transport & logistics | 2023 |
| Dynamism Electrical Ltd | Manufacturing | 2022 |
| Dzaleta Consulting Limited | Professional & scientific | 2013 |
| E J Church Limited | Extraterritorial | 2004 |
| E-Innovate Ltd | Information & communication | 2014 |
| E-Winds UK Ltd | Wholesale & retail | 2021 |
| E. Chapman Limited | Professional & scientific | 2006 |
| E. Tracey Agencies Limited | Professional & scientific | 2010 |
| E.O Consultancy Ltd | Real estate | 2024 |
| E.P. UK Services Ltd | Professional & scientific | 2002 |
| Earlswood Homes (Thames Region) Limited | Construction | 2015 |
| Earlswood Homes East Anglia Limited | Construction | 2021 |
| Earlswood Homes Holdings Limited | Financial services | 2012 |
| Earlswood Homes South East Limited | Construction | 2020 |
| Earlswood Land Limited | Professional & scientific | 2020 |
| Earlswood Park Psychology Ltd | Health & social care | 2021 |
| Early Years Finance Ltd | Financial services | 2023 |
| Earth Metal and Fire Limited | Extraterritorial | 2002 |
| EAS Real Estate Limited | Real estate | 2023 |
| East END Fairford Limited | Construction | 2024 |
| East Sussex Country Tours Ltd | Administrative & support | 2025 |
| Easy Inspect Ltd | Administrative & support | 2022 |
| EAT Family Company Ltd | Manufacturing | 2021 |
| EBD Aviation Limited | Transport & logistics | 2020 |
| EBD London Limited | Professional & scientific | 2011 |
| Ebzery Holdings Ltd | Real estate | 2021 |
| Eco-Efficient Solutions Ltd | Professional & scientific | 2014 |
| Ecoa Limited | Wholesale & retail | 2024 |
| ECS Source Ltd | Wholesale & retail | 2021 |
| Edale Enterprises Limited | Information & communication | 2019 |
| Edale UK Management Limited | Financial services | 2014 |
| Edentic Limited | Information & communication | 2026 |
| Edington Ltd | Information & communication | 2024 |
| Edniaj Ltd | Other services | 2019 |
| Education Technologies Limited | Information & communication | 2019 |
| Edusolve Limited | Professional & scientific | 2009 |
| Edwards Powell Limited | Financial services | 2010 |
| Edwards Tempus Casumque Limited | Professional & scientific | 2025 |
| Effective Maths Limited | Administrative & support | 2016 |
| Eighty-Two Holmesdale Road Management Company Limited | Households | 1989 |
| Ekic Advisory Limited | Real estate | 2017 |
| Ekte Vision Ltd | Professional & scientific | 2021 |
| Ekwip Ltd | Administrative & support | 2026 |
| EL ROI Trends Limited | Wholesale & retail | 2025 |
| Elanders Sport Limited | Manufacturing | 2023 |
| Elecmech Services (Southern) Limited | Professional & scientific | 1998 |
| Electric Whizz Ltd | Wholesale & retail | 2020 |
| Eleniox Ltd | Information & communication | 2023 |
| Elevate Health Coaching Limited | Health & social care | 2026 |
| Elevate Recruitment Group Limited | Administrative & support | 2024 |
| Elevate Sales and Marketing Limited | Professional & scientific | 2016 |
| Elevation Station Limited | Administrative & support | 2021 |
| Eleven Edges Ltd | Arts & recreation | 2026 |