| Domo Corporation Ltd | Wholesale & retail | 2022 |
| Domo Nutrition Limited | Wholesale & retail | 2021 |
| Domoworktops Ltd | Manufacturing | 2024 |
| Domus FIX Limited | Construction | 2026 |
| Domz Testing Services Limited | Information & communication | 2018 |
| DON Kaluarachchi Ltd | Information & communication | 2020 |
| DON Peppino Limited | Real estate | 1974 |
| Donaloulou Ltd | Real estate | 2025 |
| Doniu Ltd | Construction | 2024 |
| Doobay Care (Lychgate) Limited | Health & social care | 1998 |
| Doodh Wala Ltd | Hospitality | 2026 |
| Doon Assets Ltd | Hospitality | 2023 |
| Doon Restaurant and Catering Limited | Hospitality | 2023 |
| Door Food Ltd | Wholesale & retail | 2020 |
| Doore’S Catering Limited | Hospitality | 2018 |
| Dooy Ltd | Transport & logistics | 2018 |
| Dorf Finances Ltd | Transport & logistics | 2025 |
| Dorking Busienss Park Freehold Ltd | Real estate | 2025 |
| Dorset Healthcare Ltd | Health & social care | 2001 |
| Doshar Limited | Households | 2021 |
| Dostea Limited | Hospitality | 2019 |
| DOT Mobile Tyres Ltd | Wholesale & retail | 2017 |
| Double Box International Ltd | Wholesale & retail | 2020 |
| Double G Property Investments Ltd | Real estate | 2023 |
| Double Glazing 4U Limited | Construction | 2021 |
| Double RR Medical Ltd | Health & social care | 2025 |
| Dough Bois Ltd | Hospitality | 2019 |
| Dounemount Care Limited | Health & social care | 2019 |
| Dovehouse Property Ltd | Real estate | 2026 |
| Dovetac Ltd | Wholesale & retail | 2023 |
| Dovetec Ltd | Wholesale & retail | 2024 |
| Down Lodge Residential Care Limited | Health & social care | 2012 |
| Doxdirect Limited | Manufacturing | 2013 |
| DP Tech Solutions Ltd | Information & communication | 2014 |
| DP Trans Services Ltd | Transport & logistics | 2021 |
| Dplants Limited | Construction | 2016 |
| DPN Technology Ltd | Information & communication | 2025 |
| DPS Graphics Ltd | Manufacturing | 2011 |
| DPX Group Ltd | Transport & logistics | 2025 |
| DPX2 Ltd | Construction | 2025 |
| DR Abdus Salam Healthcare Services Ltd | Health & social care | 2011 |
| DR M Koshy Limited | Health & social care | 2014 |
| DR MKR Consultant Ltd | Professional & scientific | 2014 |
| DR Mohamed Elnaggar Ltd | Wholesale & retail | 2024 |
| DR Rent Ltd | Information & communication | 2026 |
| DR Rosh Aesthetics Limited | Health & social care | 2021 |
| DR ZAK MED Ltd | Health & social care | 2015 |
| DR1 Management Ltd | Real estate | 2025 |
| DR1 Property Ltd | Real estate | 2025 |
| Dragona Construction Ltd | Construction | 2023 |
| Dragongate International Limited | Administrative & support | 2025 |
| Dragosnita.Art Ltd | Information & communication | 2025 |
| DRAW2DESIGNS Limited | Construction | 2020 |
| Dream 13 Property Investments & Management Ltd | Financial services | 2024 |
| Dream Cleaning Team Limited | Information & communication | 2025 |
| Dream Cloud Holdings Limited | Financial services | 2025 |
| Dream Cloud Solutions Ltd | Information & communication | 2014 |
| Dream Home Builders Limited | Construction | 2020 |
| Dream Home Creations Limited | Construction | 2018 |
| Dream Homes Development Ltd | Construction | 2018 |
| Dream Prestige Homes Limited | Real estate | 2024 |
| Dream Rides Global Limited | Wholesale & retail | 2025 |
| Dream Steaming Ltd | Administrative & support | 2020 |
| Dream the Build Construction Ltd | Construction | 2025 |
| Dream Weavers Ltd | Administrative & support | 2023 |
| Dreamhabitat Ltd | Wholesale & retail | 2014 |
| Dreams by the Sea Ltd | Hospitality | 2026 |
| Dreams Home Construction Limited | Construction | 2019 |
| Dreams Marquee Hire Ltd | Arts & recreation | 2018 |
| Dreams Online Limited | Wholesale & retail | 2024 |
| Dreams&Flavours Limited | Hospitality | 2026 |
| Dreamsouth Limited | Transport & logistics | 2002 |
| Dreamwave Media Ltd | Information & communication | 2024 |
| Dreamy Snooze Ltd | Wholesale & retail | 2025 |
| Dresgef Services Limited | Professional & scientific | 2014 |
| Drew Properties (New Milton) Limited | Construction | 1978 |
| DRG Arrow Ltd | Construction | 2024 |
| DRH Home Services Limited | Real estate | 2024 |
| Driftroom Online Ltd | Wholesale & retail | 2020 |
| Drink Revivo Ltd | Manufacturing | 2026 |
| Drinkrealm Limited | Wholesale & retail | 2024 |
| Drinks Direct Langley Ltd | Wholesale & retail | 2019 |
| Drips and Aesthetics Limited | Health & social care | 2020 |
| Dripstop Roofing and Landscape Ltd | Construction | 2025 |
| Drishti International Ltd | Hospitality | 2023 |
| Drithi Ltd | Real estate | 2025 |
| Drivalia Lease UK Ltd | Financial services | 2002 |
| Drivalia UK Ltd | Administrative & support | 2012 |
| Drive MAX Ltd | Wholesale & retail | 2025 |
| Drive With Goodwill Ltd | Education | 2025 |
| Drivee ME Ltd | Wholesale & retail | 2025 |
| Driveline Paving and Patios Ltd | Construction | 2019 |
| Drivelux Ltd | Transport & logistics | 2025 |
| Driver Fleet Solutions Ltd | Administrative & support | 2026 |
| DRIVER2656 Transport Ltd | Transport & logistics | 2021 |
| Driverup Ltd | Information & communication | 2018 |
| Drivesmith Driver Training Limited | Education | 2011 |
| Drivetech Autos Limited | Wholesale & retail | 2011 |
| Drivexcel Limited | Administrative & support | 2024 |
| Driving Direct Limited | Transport & logistics | 2015 |