| DR. Stuart Blackie Limited | Health & social care | 2003 |
| Dracan Ltd | Transport & logistics | 2024 |
| Dradda-Don Limited | Wholesale & retail | 2025 |
| Draft Global Ltd | Construction | 2011 |
| Draghici Ltd | Transport & logistics | 2020 |
| Dragon Hotel Limited | Hospitality | 1985 |
| Dragon Kingdom Wrestling Ltd | Arts & recreation | 2023 |
| Dragon Warriors Ltd | Arts & recreation | 2019 |
| Dragons Investments Ltd | Real estate | 2021 |
| Drain Flow Services Ltd | Water & waste | 2016 |
| Drake Court RTM Company Limited | Real estate | 2012 |
| Drawaline Ltd | Professional & scientific | 2017 |
| Drayton Fencing Limited | Professional & scientific | 2003 |
| Dream Care Consultants Ltd | Health & social care | 2023 |
| Dream Earth Project Ltd | Agriculture & fishing | 2021 |
| Dream House Building Ltd | Construction | 2017 |
| Dream House Design Ltd | Construction | 2021 |
| Dream Optic Limited | Health & social care | 2018 |
| Dream Stone Capital Group Ltd | Real estate | 2025 |
| Dreamhomez Limited | Real estate | 2017 |
| Dreamlock Limited | Information & communication | 2011 |
| Dreamstoassets Limited | Information & communication | 2026 |
| Dreamteam Media Global Ltd | Wholesale & retail | 2022 |
| Dreamz Tech Solutions UK Private Limited | Information & communication | 2019 |
| Dreaver Mendelssohn Holdings Ltd | Financial services | 2025 |
| Drencan Limited | Financial services | 2016 |
| Drentwich IT Support Ltd | Wholesale & retail | 2021 |
| Drew Payne Painters and Decorators Limited | Other services | 2014 |
| Drewett Property Limited | Real estate | 2025 |
| DRF Couriers Ltd | Transport & logistics | 2021 |
| Drinem Limited | Professional & scientific | 2024 |
| Drive & Trade Solutions Ltd | Wholesale & retail | 2026 |
| Drive Court Freehold Limited | Real estate | 2006 |
| Drivepro Limited | Wholesale & retail | 2005 |
| Driver Medicals Direct UK Ltd. | Health & social care | 2023 |
| Drjennypsychology Ltd | Health & social care | 2025 |
| DRM Consultants Ltd | Administrative & support | 2016 |
| Drmi Consulting Limited | Information & communication | 2014 |
| Droid Enterprises Limited | Information & communication | 2025 |
| Droidz Limited | Professional & scientific | 2011 |
| Dropfleet Ltd | Transport & logistics | 2026 |
| DRP Investments Limited | Real estate | 2026 |
| Druantia's Oak Limited | Professional & scientific | 2017 |
| Drumhalla Limited | Construction | 2007 |
| Dryshine Ltd | Administrative & support | 2025 |
| DS Foods Limited | Wholesale & retail | 2015 |
| DSA Capital Limited | Information & communication | 2007 |
| DSB Electrical Contractors Ltd | Construction | 2025 |
| DSB Premier Construction Limited | Construction | 2019 |
| DSB Property & Development Ltd | Real estate | 2026 |
| DSD Sports Coaching Limited | Arts & recreation | 2016 |
| Dsfs Ltd | Financial services | 2015 |
| DSG IT Services Limited | Information & communication | 2010 |
| DSP Builders & Developers Ltd | Construction | 2020 |
| Dspmate Limited | Information & communication | 2019 |
| DSS Associates Ltd | Information & communication | 2011 |
| DSW Construction Ltd | Professional & scientific | 2016 |
| DT Cassius Holdings Limited | Financial services | 2025 |
| DT Technology Ltd | Information & communication | 2012 |
| DTM Security Ltd | Administrative & support | 2025 |
| DTP Construction Limited | Construction | 2013 |
| DTR Commercial Cleaning Ltd | Administrative & support | 2019 |
| DTS Tech Ltd | Professional & scientific | 2025 |
| Dtvm Systems Ltd | Construction | 2021 |
| DU Boulay Contracts Limited | Administrative & support | 1983 |
| DU Boulay Partners LLP | | 2018 |
| DUA & Co Limited | Professional & scientific | 2010 |
| Duagh Holdings Limited | Construction | 2013 |
| Dual Holidays Ltd | Real estate | 2025 |
| Dual Renovations Ltd | Construction | 2020 |
| Dualcom Holdings Limited | Manufacturing | 2006 |
| Duck One Ltd | Administrative & support | 2018 |
| Dude Things Ltd | Professional & scientific | 2021 |
| Dudley Housing Limited | Real estate | 2019 |
| Duffy & Namsak Ltd | Wholesale & retail | 2013 |
| Duffy Property Limited | Real estate | 2023 |
| Dulabh Developments Limited | Real estate | 2020 |
| Dulin Consulting Limited | Professional & scientific | 2011 |
| DUM Factory Limited | Hospitality | 2025 |
| Duman PVT Ltd | Transport & logistics | 2026 |
| Dumi SDG Ltd | Construction | 2015 |
| Dunamis Arise Ltd | Real estate | 2025 |
| Dunamis Productions Ltd | Arts & recreation | 2025 |
| Dunamis Thrive Ltd | Real estate | 2025 |
| Duncan Court (Management) Limited | Households | 1976 |
| Duncan Kendal Advisory Ltd | Professional & scientific | 2025 |
| Dunearn Capital Ltd | Real estate | 2019 |
| Dunee Ltd | Administrative & support | 2026 |
| Dunia's Trading Ltd | Wholesale & retail | 2022 |
| Dunn Well Ltd | Wholesale & retail | 2022 |
| Dunne Family Properties Limited | Real estate | 2023 |
| Dunne Trading Limited | Health & social care | 2023 |
| Dunnsroofing Ltd | Construction | 2021 |
| DUO TEC Limited | Construction | 2021 |
| Durowoju Holdings Ltd | Financial services | 2026 |
| Dussby Marketing Limited | Information & communication | 2022 |
| Dusthalo Ltd | Professional & scientific | 2025 |
| Duty&Beauty Ltd | Wholesale & retail | 2025 |
| DV Cleaners Limited | Administrative & support | 2025 |
| Dvhp Limited | Real estate | 2020 |