| Dope Black Queers CIC | Education | 2023 |
| Doppelmayr Cable Car UK Limited | Transport & logistics | 2001 |
| Doppietta Digital Ltd | Information & communication | 2023 |
| Doraville Farms Limited | Agriculture & fishing | 2017 |
| Dormant Company Services Ltd | Administrative & support | 2021 |
| Dorsetcafes Limited | Hospitality | 2023 |
| Doru & Ionut Ltd | Construction | 2022 |
| Dosa Clique Ltd | Hospitality | 2021 |
| Doseal Solutions Ltd | Manufacturing | 2026 |
| Doshi Foods Ltd | Wholesale & retail | 2025 |
| Dotlink Ltd | Transport & logistics | 2019 |
| Double J Games Limited | Information & communication | 2018 |
| Double M Hub Ltd | Wholesale & retail | 2025 |
| Double S Trading Ltd | Wholesale & retail | 2025 |
| Doubleswan Transport Limited | Transport & logistics | 2013 |
| Doug's Joinery & Carpentery Limited | Construction | 2024 |
| Dough Boys Pizza and Dessert Ltd | Hospitality | 2024 |
| Dovelp Limited | Information & communication | 2019 |
| Down 2 Earth Drives & Patios Ltd | Construction | 2022 |
| Downlands Court Management Company Limited | Households | 1980 |
| Downs Road Luton (NO 1) Management Co Ltd | Households | 2019 |
| Downs Road Luton (NO 2) Management Co Ltd | Households | 2019 |
| Downside Children`S Pre-School Limited | Education | 2003 |
| Downton Court Limited | Real estate | 1998 |
| Downtown Motors Ltd | Wholesale & retail | 2019 |
| Downtown Plumbers Limited | Construction | 2024 |
| Doxazo Ltd | Information & communication | 2015 |
| Dpcp Accounting Ltd | Professional & scientific | 2024 |
| DPF Greens Ltd | Administrative & support | 2022 |
| DPI Holdings Ltd | Financial services | 2025 |
| DPL Plant Services Limited | Construction | 2017 |
| Dprendering Ltd | Construction | 2020 |
| DPS Lettings Limited | Real estate | 2012 |
| DPZ Builders Construction & Maintenance Ltd | Construction | 2025 |
| DR ABI Medical Limited | Professional & scientific | 2013 |
| DR Bird & Mahogany Limited | Wholesale & retail | 2024 |
| DR Hundal Ltd | Health & social care | 2014 |
| DR L Khan Consultancy Ltd | Health & social care | 2019 |
| DR M Rashid Healthcare Ltd | Health & social care | 2025 |
| DR Mohammed Sanawar Islam Choudhury Ltd | Real estate | 2018 |
| DR MS Psychology Limited | Health & social care | 2022 |
| DR N Al-Sudani (Mrcgp) Ltd | Health & social care | 2017 |
| DR Ripley Services Ltd | Health & social care | 2025 |
| DR S. Mistry Limited | Health & social care | 2014 |
| DR Y K Shankarappa Limited | Health & social care | 2003 |
| DR Zareen Ltd | Health & social care | 2023 |
| DR. K. Ibilola Limited | Health & social care | 2016 |
| Dr.Ish Auto Care Ltd | Wholesale & retail | 2025 |
| Dr.Kars Ltd | Wholesale & retail | 2025 |
| Draconfit Ltd | Wholesale & retail | 2025 |
| Dracula Ltd | Hospitality | 2014 |
| Drag Speed Transport Ltd | Transport & logistics | 2020 |
| Drago Construction Ltd | Construction | 2026 |
| Dragon Star Protection Ltd | Financial services | 2018 |
| Dragut Logistic Limited | Transport & logistics | 2026 |
| Drakewell Homes Ltd | Construction | 2026 |
| Dramir Plastering Limited | Construction | 2020 |
| Dransfield Electrical Contractors Ltd | Construction | 2022 |
| Drapers Transport Services Ltd | Transport & logistics | 2021 |
| Draycott Technology Limited | Professional & scientific | 2025 |
| DRB Civils & Rail Services Ltd | Construction | 2022 |
| Drbak Ltd | Health & social care | 2024 |
| Dream Card UK Ltd | Wholesale & retail | 2024 |
| Dream Cars Trading Limited | Wholesale & retail | 2026 |
| Dream Consultants Ltd | Wholesale & retail | 2019 |
| Dream Education Limited | Education | 2025 |
| Dream Estates Limited | Real estate | 2001 |
| Dream Haulier Ltd | Transport & logistics | 2023 |
| Dream Hill Estates Ltd | Construction | 2020 |
| Dream Legend Studio and Nikita Productions Ltd | Arts & recreation | 2026 |
| Dream Legend Studio Ltd | Arts & recreation | 2025 |
| Dream Sketch Ltd | Wholesale & retail | 2026 |
| Dream Supercar Hire Ltd | Administrative & support | 2026 |
| Dream Wheelz Limited | Wholesale & retail | 2026 |
| Dream World Inc Ltd | Wholesale & retail | 2025 |
| Dreamd Well Properties Ltd | Real estate | 2025 |
| Dreamhouse Rentals Ltd | Real estate | 2023 |
| Dreamkey BIZ Solutions Limited | Transport & logistics | 2019 |
| Dreamland Developments Ltd | Real estate | 2024 |
| Dreamland Motors Ltd | Wholesale & retail | 2021 |
| Dreams 360 Ltd | Education | 2023 |
| Dreamy Retreats Ltd | Other services | 2025 |
| Drignei Transport Limited | Transport & logistics | 2019 |
| Drivafleet Ltd | Transport & logistics | 2025 |
| Drive Inn Limited | Wholesale & retail | 2022 |
| Drive NOW Autos Limited | Wholesale & retail | 2022 |
| Drive Right Luton Ltd | Wholesale & retail | 2017 |
| Drive Ryte Sundon Park Limited | Wholesale & retail | 2023 |
| Drive Safe Limited | Wholesale & retail | 2024 |
| Drive With Iqbal Limited | Education | 2025 |
| DRIVE17 School of Motoring Ltd | Education | 2023 |
| Driveflow Ltd | Transport & logistics | 2016 |
| Drivehub Motors Ltd | Wholesale & retail | 2026 |
| Driver Training Academy Ltd | Education | 2025 |
| Driveryte Limited | Wholesale & retail | 2014 |
| Drivesmart Car Ltd | Wholesale & retail | 2023 |
| Drivesmart Motoring Ltd | Wholesale & retail | 2021 |
| Driveway Motors Ltd | Wholesale & retail | 2025 |
| Driveways 4 U Limited | Construction | 2012 |
| Driveways Properties Ltd | Construction | 2017 |