| Durahaus Limited | Construction | 2025 |
| Durakle Ltd | Wholesale & retail | 2025 |
| Durant Developments Limited | Extraterritorial | 2011 |
| Durbin Electrical Limited | Construction | 2003 |
| Durbin Projects Ltd | Construction | 2025 |
| Durdham Limited | Real estate | 1998 |
| Durdham Park Management Company Limited | Real estate | 1991 |
| Durdhamside Management Company Limited | Households | 2004 |
| Durdur Restaurant Ltd | Hospitality | 2020 |
| Durga Food and Services Private Limited | Hospitality | 2025 |
| Durie Associates Limited | Administrative & support | 2023 |
| Durkan Design and Build Limited | Construction | 2004 |
| Durrance Developments Limited | Construction | 2015 |
| Dusk & Echo Investments Ltd | Real estate | 2025 |
| Dust and Fume Ltd | Manufacturing | 2024 |
| Dust Ensemble Ltd | Arts & recreation | 2023 |
| Dusted Films Ltd | Information & communication | 2023 |
| Dusty Vintage Ltd | Wholesale & retail | 2025 |
| Dutch Oak Tree Foundation | Professional & scientific | 2002 |
| Dutchtub UK Limited | Wholesale & retail | 2006 |
| Dutteli Ltd | Financial services | 2025 |
| Duttkrupa Limited | Wholesale & retail | 2003 |
| Dutty Moonshine Big Band Ltd | Arts & recreation | 2026 |
| Duty. Ltd | Information & communication | 2026 |
| Duval Events Ltd | Hospitality | 2025 |
| DUX Global Ltd | Education | 2026 |
| Duxbury Holdings Ltd | Professional & scientific | 2024 |
| DV Building Services Limited | Construction | 2016 |
| DV Drylining Solutions Ltd | Construction | 2021 |
| DV Vision Limited | Information & communication | 2013 |
| DV8 Developments Limited | Construction | 2003 |
| DVD Sports Ltd | Arts & recreation | 2022 |
| DVF Media Ltd | Information & communication | 2024 |
| DVG Limited | Extraterritorial | 2010 |
| Dvindustries Ltd | Professional & scientific | 2019 |
| Dvlm Limited | Real estate | 2018 |
| DVM Escape Ltd | Real estate | 2023 |
| DVW Property Group Limited | Real estate | 2018 |
| DW Bridge Associates Ltd | Real estate | 2024 |
| DW Business Solutions Ltd | Information & communication | 2026 |
| DW Car & Van Hire Ltd | Administrative & support | 2003 |
| DW Carpentry UK Limited | Construction | 2008 |
| DW Knitwear Design Consultancy Ltd | Professional & scientific | 2019 |
| DW Logistics Ltd | Transport & logistics | 2024 |
| DW Platinum Services Limited | Administrative & support | 2019 |
| DW Tech Ltd | Information & communication | 2010 |
| DW Tyres Ltd. | Wholesale & retail | 2022 |
| Dwaraka Antiques Ltd | Wholesale & retail | 2021 |
| Dwarf Beard Limited | Administrative & support | 2015 |
| DWB Management Limited | Professional & scientific | 2019 |
| Dwcc Ltd | Professional & scientific | 2008 |
| DWE Global Ltd | Financial services | 2021 |
| Dwell Aura Limited | Real estate | 2024 |
| Dwell. Bristol Ltd | Construction | 2022 |
| Dwelland Co Limited | Households | 2011 |
| Dwellings Properties Limited | Hospitality | 2007 |
| Dwells (Plymouth) Limited | Professional & scientific | 2013 |
| DWG Rees Consulting Ltd | Professional & scientific | 2020 |
| Dwha Healthcare Limited | Health & social care | 2020 |
| DWL Investments Ltd | Other services | 2015 |
| DWM Consultancy Services Limited | Professional & scientific | 2021 |
| DWM Enterprises Ltd | Wholesale & retail | 2024 |
| DWM Medical Ltd | Health & social care | 2017 |
| DWM Outdoors C.I.C. | Education | 2024 |
| DWM Productions Limited | Information & communication | 2024 |
| DWN Property Ltd | Real estate | 2025 |
| Dwood Limited | Construction | 2025 |
| DWR NWY Trydan Holdings Limited | Energy | 2015 |
| DX Electrical Ltd | Construction | 2021 |
| Dy-Namik Joinery & Carpentry Limited | Construction | 2015 |
| DYA Bristol Ltd | Wholesale & retail | 2022 |
| Dybowski Limited | Construction | 2025 |
| Dycem Limited | Manufacturing | 1996 |
| DYE Witch Ltd | Arts & recreation | 2018 |
| Dyenamik Ltd | Wholesale & retail | 2022 |
| Dyer Fencing Construction Limited | Administrative & support | 1993 |
| Dyeverse Limited | Arts & recreation | 2019 |
| Dylo Ltd | Other services | 2016 |
| Dymas Global Ltd | Professional & scientific | 2024 |
| Dynacourt Limited | Financial services | 1977 |
| Dynamene Neuro-Consulting Ltd | Professional & scientific | 2020 |
| Dynamic Aura Ltd | Professional & scientific | 2021 |
| Dynamic Dairy Farming Limited | Agriculture & fishing | 2014 |
| Dynamic Excellence Ltd | Information & communication | 2015 |
| Dynamic Fire Systems Ltd | Wholesale & retail | 2016 |
| Dynamic Intelligence Solutions Limited | Information & communication | 2021 |
| Dynamic MOT Centre Ltd | Wholesale & retail | 2020 |
| Dynamic Nails Ltd | Other services | 2025 |
| Dynamic Packaging Ltd. | Manufacturing | 1989 |
| Dynamic Properties SW Ltd | Real estate | 2026 |
| Dynamic Psychology Services Ltd | Education | 2020 |
| Dynamic Real Estate Limited | Real estate | 2016 |
| Dynamic Reliance Limited | Education | 2025 |
| Dynamic Rental Solutions Ltd | Real estate | 2022 |
| Dynamic Signs Limited | Manufacturing | 2011 |
| Dynamic SW Limited | Construction | 2024 |
| Dynamic Tape Global Ltd | Wholesale & retail | 2020 |
| Dynamik Holdings Limited | Construction | 2022 |
| Dynamik Marketing Ltd | Professional & scientific | 2023 |
| Dynamo Software UK. Limited | Information & communication | 2015 |