| Dtmj Property Investment Ltd | Real estate | 2026 |
| Dtnw Estates Limited | Real estate | 2023 |
| DTP FX Limited | Financial services | 2022 |
| DTS Development Ltd | Professional & scientific | 2020 |
| DTS Law Ltd | Professional & scientific | 2015 |
| DTS Luxem Ltd | Hospitality | 2026 |
| Dtshuang Ltd | Wholesale & retail | 2025 |
| Dtsr Foods Ltd | Manufacturing | 2025 |
| DTY Ltd | Wholesale & retail | 2025 |
| DU Ming HAO Ltd | Wholesale & retail | 2023 |
| DU Toit and Burger Partnership (Harwich) Ltd | Health & social care | 2006 |
| DU Toit and Burger Partnership (Ipswich) Ltd | Health & social care | 2006 |
| DU Toit and Burger Partnership (Silvertown) Ltd | Health & social care | 2006 |
| DU Toit and Burger Partnership (Stratford) Ltd | Health & social care | 2006 |
| DU Toit and Burger Partnership Limited | Health & social care | 2006 |
| DU61NER Ltd | Real estate | 2022 |
| DUA Cafe Ltd | Hospitality | 2023 |
| DUA Fashion Ltd | Wholesale & retail | 2026 |
| DUA Foodie Ltd | Hospitality | 2024 |
| DUA Property Solutions Ltd | Real estate | 2025 |
| Duaa Clothing Ltd | Wholesale & retail | 2019 |
| Duaa Developments Ltd | Construction | 2024 |
| Duaa Europe Ltd | Wholesale & retail | 2023 |
| Duaconnect Ltd | Education | 2026 |
| Dual Utilities Ltd | Construction | 2024 |
| Dual Vertex Ltd | Transport & logistics | 2018 |
| Dualtechnology Ltd | Information & communication | 2023 |
| DUB Estates Limited | Real estate | 2017 |
| DUB Phizix Ltd | Arts & recreation | 2013 |
| Dubai Bakery Ltd | Hospitality | 2023 |
| Dubai Gold Jewellers Ltd | Wholesale & retail | 2019 |
| Dubai Grill Limited | Hospitality | 2025 |
| Dubai Shawarma Cheetham Ltd | Hospitality | 2024 |
| Dubai Shawarma MCR Limited | Hospitality | 2025 |
| Dubai Souk Limited | Wholesale & retail | 2026 |
| Dubai Trade Limited | Wholesale & retail | 2022 |
| Dubai-Stylove Ltd | Wholesale & retail | 2026 |
| Dubaiuk Real Estate Agent & Property Developer Ltd | Construction | 2021 |
| Dubenci Limited | Manufacturing | 2025 |
| Duber Service Ltd | Education | 2025 |
| Dubinik Flannel Co Ltd | Wholesale & retail | 2024 |
| Dubinsky Limited | Manufacturing | 2025 |
| Dubinvest Limited | Real estate | 2019 |
| Dubis Holdings Ltd | Real estate | 2026 |
| Duchess Properties Ltd | Wholesale & retail | 2025 |
| Duchy Civils Limited | Construction | 2015 |
| Duchy Demolition Ltd | Construction | 2020 |
| Duchy Group Limited | Financial services | 2020 |
| Ducie Wharf Management Company Limited | Extraterritorial | 2002 |
| Duck & Ferret Limited | Hospitality | 2014 |
| Duckgogo Travel Limited | Administrative & support | 2025 |
| Duckworth Properties Ltd | Real estate | 2021 |
| Duckworth Property Services Ltd | Real estate | 2021 |
| Duckworth Solutions Ltd | Professional & scientific | 2024 |
| Duckworth's Bakery Ltd | Manufacturing | 2021 |
| Ductavent Limited | Manufacturing | 1970 |
| Ductwork Design and Installation Limited | Construction | 1990 |
| Dude Where's My PUB Limited | Hospitality | 2023 |
| Dudley Education and Co Limited | Education | 2018 |
| Dudley Wood Engineering Limited | Professional & scientific | 1960 |
| Dudu Electronic Co, Ltd | Wholesale & retail | 2018 |
| Duduauto Limited | Wholesale & retail | 2026 |
| Duffield Court (Management) Limited | Households | 1989 |
| Duffour Cosmetics Ltd | Other services | 2024 |
| Duffy Care Ltd | Health & social care | 2026 |
| Duffy Consultancy Limited | Information & communication | 2009 |
| Duffy Motors (Manchester) Limited | Wholesale & retail | 2007 |
| Duffy Motors Limited | Wholesale & retail | 1978 |
| Duffy's Installations Ltd | Construction | 2007 |
| Duggan Forestry Ltd. | Agriculture & fishing | 2008 |
| Duha Properties Ltd | Construction | 2019 |
| Duhamel Brothers Ltd | Construction | 2025 |
| Duhoderm Limited | Health & social care | 2022 |
| Duhok Pizza Limited | Hospitality | 2023 |
| Dukaan MCR Limited | Manufacturing | 2025 |
| Dukagjini Group Ltd | Hospitality | 2022 |
| Duke & Jones Ltd | Information & communication | 2022 |
| Duke ATA Ltd | Wholesale & retail | 2020 |
| Duke Financial Management Ltd | Professional & scientific | 2017 |
| Duke International Ltd | Information & communication | 2017 |
| Duke Kennels Limited | Hospitality | 2012 |
| Duke Lloyd Architecture Ltd | Professional & scientific | 2022 |
| Duke Street (Manchester) Ltd | Construction | 2020 |
| Dukes Manor Management Company NO 2 Limited | Real estate | 1999 |
| Dukinfield UK Engineering Ltd | Professional & scientific | 2025 |
| Dukon Ltd | Wholesale & retail | 2025 |
| Dulce Pulver Limited | Wholesale & retail | 2024 |
| Dulcet Care Ltd | Health & social care | 2024 |
| Dulcet Trading Company Ltd | Professional & scientific | 2025 |
| Dulhan Diaries Ltd | Information & communication | 2026 |
| Dull Industries Ltd | Information & communication | 2023 |
| Dulux Kitchens Ltd | Construction | 2026 |
| Dulwich Day Nursery Group Limited | Administrative & support | 2016 |
| Duman Cafe Ltd | Hospitality | 2019 |
| Dumbles Ltd | Wholesale & retail | 2026 |
| Dumbleton Properties Limited | Real estate | 2020 |
| Dumbo & Gugan Ltd | Wholesale & retail | 2024 |
| Dumers Lane Limited Partnership | | 2004 |
| Dumfries Assets Limited | Extraterritorial | 2017 |
| Dumix Cars Ltd | Manufacturing | 2018 |