| Denmar Maritime & Trade Ltd | Transport & logistics | 2022 |
| Dennis Tech HK Limited | Extraterritorial | 2014 |
| DENT8 Ltd | Health & social care | 2026 |
| Depuwei Ltd | Manufacturing | 2024 |
| Deraliev Building Services Ltd | Construction | 2014 |
| Dereei Group Limited | Extraterritorial | 2018 |
| Derrickmarg Ltd | Hospitality | 2025 |
| Derun Charcoal Carbon Co., Ltd | Extraterritorial | 2012 |
| Desan Trade Co., Ltd | Wholesale & retail | 2014 |
| Designreexplore Ltd | Information & communication | 2021 |
| Desio Ltd | Wholesale & retail | 2014 |
| Desiree Electric Company Ltd | Extraterritorial | 2015 |
| Desite Group Ltd | Extraterritorial | 2020 |
| Desserts on Demand Limited | Wholesale & retail | 2025 |
| Detangledadmin Limited | Administrative & support | 2015 |
| Devonshire Investments Limited | Administrative & support | 2015 |
| Devouring Capital Ltd | Financial services | 2021 |
| Dexin Import & Export Co., Ltd | Extraterritorial | 2020 |
| Deye Piping Industry (UK) Co., Ltd | Construction | 2019 |
| Dezhou Kuhi Import &Export Co., Ltd | Extraterritorial | 2023 |
| Dezhou Weichuang Industry Ltd | Extraterritorial | 2019 |
| De’Norse Project Limited | Construction | 2024 |
| DF PAC Technology Ltd | Extraterritorial | 2025 |
| DGD Consultancy Limited | Information & communication | 2025 |
| Dgdf Group UK DI FEI Coatings Limited | Extraterritorial | 2025 |
| Dhgt Group Limited | Wholesale & retail | 2022 |
| Dhonia Ltd | Hospitality | 2019 |
| DHS International Co., Limited | Manufacturing | 2014 |
| Dials Studio Ltd | Other services | 2025 |
| Diamond Flight Training Co Ltd | Transport & logistics | 2021 |
| Diamond Road Markings Limited | Construction | 2009 |
| Diandian Co., Limited | Manufacturing | 2026 |
| Dibben Consultants Limited | Financial services | 1994 |
| Dickens Holdings Ltd | Real estate | 2022 |
| Dickens SPV Limited | Financial services | 2024 |
| Difei Trading Co., Ltd. | Manufacturing | 2023 |
| Digby Consulting Ltd | Professional & scientific | 2017 |
| Diggens Limited | Extraterritorial | 2013 |
| Digiscill Limited | Professional & scientific | 2014 |
| Digital Risk Insight Limited | Professional & scientific | 2017 |
| Digital Thirst Ltd | Information & communication | 2015 |
| Digital Wave Trade Ltd | Wholesale & retail | 2024 |
| Digitgems International Limited | Wholesale & retail | 2025 |
| Diligentia Ltd | Professional & scientific | 2003 |
| Dillaways Electrical Limited | Manufacturing | 2023 |
| Dimension Shift Ltd | Information & communication | 2025 |
| Dinford Group Ltd | Wholesale & retail | 2024 |
| Ding Ding Foodstuff Co., Ltd. | Extraterritorial | 2019 |
| Dingchen International Co., Ltd | Extraterritorial | 2023 |
| Dinghui Shipping Engineering Co., Ltd | Wholesale & retail | 2021 |
| Dingli Pneumatic Hydraulic Co., Ltd | Manufacturing | 2021 |
| Dingxin Development Co., Limited | Construction | 2023 |
| Dino Innovation Limited | Wholesale & retail | 2025 |
| Dinosaurs World Co., Ltd. | Extraterritorial | 2013 |
| Dinyi Medical Technology Co., Ltd. | Administrative & support | 2020 |
| DIP Blue Fish and Chips Ltd | Hospitality | 2026 |
| Direct Sports Management Ltd | Extraterritorial | 2015 |
| Discount Supplies Limited | Wholesale & retail | 1982 |
| Disen Chemical Limited | Manufacturing | 2024 |
| Disrad Ltd | Manufacturing | 2025 |
| Disruptive Learning Limited | Professional & scientific | 2024 |
| Diss-Play Limited | Professional & scientific | 2024 |
| District UK Property Development Ltd Limited | Real estate | 2020 |
| Ditivore Tech., Ltd | Extraterritorial | 2026 |
| Dive Club Qualitative Ltd | Financial services | 2020 |
| Divergently Being Ltd | Professional & scientific | 2023 |
| Diverse Communications Infrastructure Limited | Construction | 2017 |
| Dividend Trade Limited | Wholesale & retail | 2023 |
| Diwol International Trading Co., Limited | Wholesale & retail | 2020 |
| DIY Power System UK Limited | Manufacturing | 2025 |
| Dizzy's Cafe Limited | Hospitality | 2017 |
| Dizzy's Restaurant & Bar Limited | Extraterritorial | 2017 |
| Djan-Krofa Estates Limited | Real estate | 2024 |
| Djfs Services Ltd | Professional & scientific | 2022 |
| Djkp Ltd | Financial services | 2024 |
| DJL Maintenance Limited | Administrative & support | 2009 |
| DJL Marketing Limited | Professional & scientific | 2006 |
| DJP Consultants Limited | Professional & scientific | 2017 |
| DJT Ventures Limited | Arts & recreation | 2025 |
| DKF & F Ltd | Energy | 2023 |
| DKY Construction Ltd | Construction | 2023 |
| DLL Construction Ltd | Construction | 2021 |
| DM Decoring Ltd | Construction | 2022 |
| DM Garden Services and Landscape Ltd | Administrative & support | 2026 |
| DM Sight Ltd | Wholesale & retail | 2018 |
| DMB Heating Ltd | Construction | 2017 |
| DMC Brands Ltd | Wholesale & retail | 2019 |
| Dmck Limited | Wholesale & retail | 2021 |
| DMG Autocare Ltd | Wholesale & retail | 2015 |
| DMG Landlords Limited | Real estate | 2017 |
| DMG Office Ltd | Administrative & support | 2008 |
| DMG Workplace Solutions Limited | Administrative & support | 2019 |
| DMO Holdings Ltd | Financial services | 2025 |
| Dms-Dany Marine Service Co., Ltd | Manufacturing | 2022 |
| Dmtaylor Limited | Information & communication | 2024 |
| DNA Build Limited | Construction | 2012 |
| Dobbyman Investments Ltd | Real estate | 1997 |
| Dobbyman Properties Limited | Real estate | 2013 |
| Dobest Industrial Co., Ltd | Wholesale & retail | 2024 |
| Docinhos E Salgadinhos Ltd | Manufacturing | 2023 |