| DR. Astrid Reitz | Professional & scientific | 2024 |
| DR. Knoell Consult Ltd | Professional & scientific | 2009 |
| DR. Rita's Skin Care Products Limited | Health & social care | 2010 |
| Dr.Lock IT Ltd | Administrative & support | 2020 |
| Dr.Mawadah Ltd | Manufacturing | 2025 |
| Dr.Southchina Limited | Other services | 2017 |
| DRA Dona UK Limited | Transport & logistics | 2019 |
| Drac Consulting Limited | Administrative & support | 2009 |
| Drac's Security Ltd | Administrative & support | 2018 |
| Drachensberg & Co. Ltd | Financial services | 2019 |
| Drackin Ltd | Wholesale & retail | 2025 |
| Draco Recruiters Ltd | Administrative & support | 2018 |
| Drafted Ltd | Professional & scientific | 2021 |
| Draftium Limited | Manufacturing | 2025 |
| Draftline Software Limited | Information & communication | 2025 |
| Dragan Construction Limited | Construction | 2016 |
| Dragealth Trade Limited | Wholesale & retail | 2022 |
| Dragon & Eagle Holdings Ltd | Mining & quarrying | 2018 |
| Dragon (Holdco) Limited | Financial services | 2020 |
| Dragon 123 Limited | Financial services | 2025 |
| Dragon 456 Limited | Financial services | 2025 |
| Dragon 789 Limited | Financial services | 2025 |
| Dragon Aerospace Systems Limited | Manufacturing | 2019 |
| Dragon Air Conditioning (Service) Limited | Manufacturing | 2010 |
| Dragon Apartments Limited | Hospitality | 2024 |
| Dragon Arts Ltd | Wholesale & retail | 2025 |
| Dragon Bags Ltd | Wholesale & retail | 2023 |
| Dragon Boats London Limited | Wholesale & retail | 2024 |
| Dragon Care Ltd | Health & social care | 2025 |
| Dragon Composites Ltd | Manufacturing | 2020 |
| Dragon Decals Ltd | Wholesale & retail | 2025 |
| Dragon Defence Solutions Ltd | Information & communication | 2026 |
| Dragon Digital Solutions Limited | Information & communication | 2018 |
| Dragon E-Commerce Limited | Wholesale & retail | 2017 |
| Dragon Education Ltd | Education | 2023 |
| Dragon Flame Limited | Professional & scientific | 2012 |
| Dragon Fundraising Ltd | Professional & scientific | 2025 |
| Dragon Gaming CIC | Health & social care | 2026 |
| Dragon General Partner Limited | Financial services | 2026 |
| Dragon Generation Limited | Professional & scientific | 2007 |
| Dragon Graphics Limited | Information & communication | 2007 |
| Dragon Grip Tyres Ltd | Wholesale & retail | 2025 |
| Dragon Housing Ltd | Real estate | 2025 |
| Dragon Hvac Ltd | Energy | 2025 |
| Dragon Interiors Ltd | Construction | 2020 |
| Dragon Maintenance & Facility Services Ltd | Administrative & support | 2020 |
| Dragon Marketing Group Wales Limited | Information & communication | 2009 |
| Dragon Medical Ltd | Education | 2024 |
| Dragon Medical Training Ltd | Education | 2026 |
| Dragon Mineral Recovery Ltd | Water & waste | 1982 |
| Dragon MKM Limited | Wholesale & retail | 2021 |
| Dragon Office Interiors Limited | Wholesale & retail | 1996 |
| Dragon Operating Company Limited | Financial services | 2026 |
| Dragon Post (Wales) Limited | Information & communication | 2020 |
| Dragon Rail & Infrastructure Ltd | Construction | 2018 |
| Dragon Recycling Ltd | Water & waste | 2024 |
| Dragon Rescue Ltd | Wholesale & retail | 2017 |
| Dragon Resin Ltd | Extraterritorial | 2024 |
| Dragon Richesse Limited | Financial services | 2016 |
| Dragon Ride Ltd | Transport & logistics | 2025 |
| Dragon Run Care Ltd | Administrative & support | 2022 |
| Dragon Scale Studios Ltd. | Information & communication | 2023 |
| Dragon Serviced Rentals Ltd | Real estate | 2019 |
| Dragon Services Group Limited | Financial services | 2020 |
| Dragon Sparks Ltd | Construction | 2025 |
| Dragon Sports Media Ltd | Information & communication | 2024 |
| Dragon Supermarket Ltd | Wholesale & retail | 2017 |
| Dragon Taxis Ltd | Extraterritorial | 2006 |
| Dragon TNC Ltd | Construction | 2024 |
| Dragon Tyres Limited | Wholesale & retail | 2018 |
| Dragon UK Bidco Limited | Financial services | 2022 |
| Dragon UK Holdco Limited | Financial services | 2022 |
| Dragon UK Midco 1 Limited | Financial services | 2022 |
| Dragon UK Midco 2 Limited | Financial services | 2022 |
| Dragon Utility Limited | Construction | 2016 |
| Dragon Valley Limited | Arts & recreation | 2004 |
| Dragonbet Ltd | Arts & recreation | 2024 |
| Dragonflies OUT of School Playcare Limited | Health & social care | 2012 |
| Dragonfly Homes Limited | Real estate | 2014 |
| Dragonfly Services Ltd | Wholesale & retail | 2020 |
| Dragonforge Enterprises Ltd | Information & communication | 2025 |
| Dragonheart Homes Limited | Construction | 2022 |
| Dragons Productions (Wales) Limited | Information & communication | 2008 |
| Dragonstone Healthcare Limited | Health & social care | 2019 |
| Dragonstone Properties Ltd | Real estate | 2024 |
| Dragonunionclo Ltd | Wholesale & retail | 2026 |
| Draig Behaviour Consultancy Ltd | Health & social care | 2025 |
| Draig Goch Productions Ltd | Information & communication | 2025 |
| Draig Hospitality Ltd | Hospitality | 2026 |
| Draig International Business Systems Cyfyngedig | Administrative & support | 2019 |
| Draig Limited | Real estate | 2016 |
| Draig Therapeutics Ltd | Professional & scientific | 2021 |
| Draig.Ai Ltd | Information & communication | 2025 |
| Drain Buddy Limited | Water & waste | 2014 |
| Drain Care & Repair Ltd | Water & waste | 2020 |
| Drain Defence Ltd | Water & waste | 2020 |
| Drain Vision Ltd | Wholesale & retail | 2019 |
| Draincare Reactive Ltd | Water & waste | 2018 |
| Drainforce Rail Limited | Construction | 2015 |
| Drainmen Limited | Water & waste | 2003 |