| David Brothers Trading Ltd | Wholesale & retail | 2022 |
| David Carey Consulting Limited | Information & communication | 2021 |
| David Charles Embroidery and Screenprinting Limited | Wholesale & retail | 2020 |
| David Dexter Associates Limited | Construction | 2004 |
| David Eduard Trans Ltd | Transport & logistics | 2014 |
| David Grey Associates Ltd | Financial services | 2020 |
| David Gwillim Honey Farm Limited | Agriculture & fishing | 2024 |
| David H L Edwards Limited | Professional & scientific | 2007 |
| David James Skin LAB Ltd | Other services | 2022 |
| David Philpott and Associates Limited | Professional & scientific | 2012 |
| David Stanley Developments Limited | Real estate | 1983 |
| David's Investments Limited | Construction | 2021 |
| Davies Family Bakery Limited | Wholesale & retail | 2003 |
| Davies Landscapes Ltd | Administrative & support | 2010 |
| Davinci Equities & Homes Ltd. | Real estate | 2012 |
| Dawn Grant Limited | Education | 2014 |
| Dayli Nutrition Ltd | Manufacturing | 2025 |
| Daylight Resources Limited | Administrative & support | 2000 |
| Dazoina & Bellucci Ltd | Manufacturing | 2017 |
| Dazzling Entertainment Ltd. | Arts & recreation | 2021 |
| DB Catering (Kent) Limited | Hospitality | 2021 |
| DB Electronic Designs Limited | Manufacturing | 2012 |
| DBS (Kent) Limited | Construction | 2019 |
| Dbsj Limited | Construction | 2011 |
| DBV Logistics Ltd | Transport & logistics | 2017 |
| DC Carpentry and Construction (London) Limited | Construction | 2013 |
| DC Developments {London} Limited | Construction | 2020 |
| DC Exercise Physiology Ltd | Health & social care | 2019 |
| DC2FIT Ltd | Arts & recreation | 2019 |
| DCH Home Maintenance Limited | Construction | 2021 |
| Dclss Properties Ltd | Real estate | 2020 |
| DCM Developments Ltd | Construction | 2024 |
| DCS Aerodrome Ltd | Extraterritorial | 2004 |
| DCS Aviation Ltd | Transport & logistics | 2019 |
| DDC Kent Investments Ltd | Construction | 2025 |
| DDC Kent Limited | Construction | 2022 |
| DDC Properties Limited | Other services | 2010 |
| DDM Construct Ltd | Construction | 2017 |
| DDS Contracting Services Limited | Construction | 2013 |
| DDS Demolition Limited | Construction | 1992 |
| DDS Environmental Limited | Construction | 2013 |
| DDS Goodger Ltd. | Other services | 2018 |
| DDS Group Limited | Financial services | 2018 |
| DDS Technical Solutions Limited | Administrative & support | 2024 |
| Ddsw Associates Ltd | Professional & scientific | 2022 |
| DDV Development Ltd | Construction | 2019 |
| DDW Colours UK Ltd. | Manufacturing | 1989 |
| DE Business Solutions Ltd | Professional & scientific | 2026 |
| DE Jager Inns Ltd | Hospitality | 2021 |
| DE Jager Projects Ltd | Real estate | 2022 |
| DE Oliveira Ltd | Real estate | 2023 |
| Deaf Haddock Limited | Information & communication | 2015 |
| Dean Smith Haulage Limited | Transport & logistics | 2015 |
| Deanhill Estates | | 2001 |
| Deb's Dwellings Ltd | Real estate | 2025 |
| Decked OUT Competitions Ltd | Arts & recreation | 2025 |
| Deco Mechanical Ltd | Construction | 2015 |
| Dedicate Apparel Ltd | Wholesale & retail | 2026 |
| Deebee's Daycare Ltd | Health & social care | 2025 |
| Deemo Prestige Limited | Administrative & support | 2023 |
| Deep Precision Limited | Information & communication | 2026 |
| Deeper Blue Consultancy Ltd | Information & communication | 2016 |
| Deeper Blue Healthy Solutions Ltd | Information & communication | 2003 |
| Deeptech Saas Limited | Administrative & support | 2021 |
| Deepwater Properties Ltd | Real estate | 2025 |
| Deerbrook Management Company Limited | Households | 1978 |
| DEG International Limited | Wholesale & retail | 2019 |
| Deiversity Talent Management Limited | Administrative & support | 2025 |
| Delco Management Services Limited | Administrative & support | 2012 |
| Delhi Chefs Tiffin UK Limited | Hospitality | 2024 |
| Delicate Services Ltd | Administrative & support | 2019 |
| Delicious Rice Ltd | Wholesale & retail | 2009 |
| Delilah's Nails Ltd | Other services | 2025 |
| Deliversoft Limited | Information & communication | 2013 |
| Delon Armitage Elite Academy Limited | Education | 2020 |
| Delphi International Group Ltd | Transport & logistics | 2024 |
| Delta Building and Construction Limited | Construction | 2013 |
| Delta Recruitment Services Ltd | Administrative & support | 2023 |
| Demarso Consulting Ltd. | Professional & scientific | 2016 |
| Demo Pharma UK Limited | Manufacturing | 2021 |
| Demore Construction Limited | Transport & logistics | 2011 |
| DEN Power Build Ltd | Construction | 2025 |
| Dene Parks Limited | Hospitality | 2025 |
| Denise Palmer Ltd | Real estate | 2025 |
| Denne Joinery Limited | Manufacturing | 2005 |
| Dental Dreams Ltd | Health & social care | 2023 |
| Dental Sky Wholesaler Limited | Wholesale & retail | 1999 |
| Denver Carrington Limited | Professional & scientific | 2020 |
| DEP Duxford 2 Ltd | Energy | 2017 |
| DEP Gorsehall Ltd | Energy | 2017 |
| DEP HWC Ltd | Energy | 2017 |
| DEP INV & OPS Ltd | Wholesale & retail | 2018 |
| DEP Trading Company Ltd | Energy | 2017 |
| Dependable Homecare Ltd | Health & social care | 2020 |
| Depict VR Limited | Health & social care | 2024 |
| Dept One Limited | Professional & scientific | 2026 |
| Derek Linch (MOT & Service) Limited | Wholesale & retail | 2008 |
| Dering Estates Limited | Real estate | 2020 |
| Dering Homes (Southborough) Limited | Construction | 2025 |
| Dermsouth Limited | Health & social care | 2024 |