| Digismart Mega Ltd | Wholesale & retail | 2025 |
| Digisphereuk Ltd | Information & communication | 2026 |
| Digital Info Ltd | Information & communication | 2023 |
| Digital Odour Technologies Limited | Manufacturing | 2015 |
| Digital Touch Ltd | Professional & scientific | 2022 |
| Digitaldeco Ltd | Wholesale & retail | 2026 |
| Digitalewis Ltd | Information & communication | 2020 |
| Digitdevelopers Ltd. | Information & communication | 2013 |
| Digitex Technologies Limited | Information & communication | 2008 |
| Digivault Ltd | Wholesale & retail | 2024 |
| Dilux Ltd | Real estate | 2021 |
| Dilworth Group Ltd | Construction | 2026 |
| Dimah Teflon Ltd | Wholesale & retail | 2016 |
| Dimi 21 Limited | Construction | 2021 |
| Dimi Construction Ltd | Construction | 2012 |
| Dimitar Keshishev Ltd | Administrative & support | 2005 |
| Dimitrov 2020 Ltd | Transport & logistics | 2020 |
| Dimitrov Protection Ltd | Construction | 2013 |
| Dimndim Limited | Construction | 2007 |
| Dimple & Ketul Ltd | Hospitality | 2024 |
| Dimples Kollections Limited | Administrative & support | 2019 |
| Dimple’S Beauty Lounge Ltd | Other services | 2020 |
| Diner Services Ltd | Hospitality | 2006 |
| Dinu Trans Solutions Ltd | Transport & logistics | 2019 |
| Diogocooks Ltd | Hospitality | 2025 |
| Dipshikha Solutions Limited | Hospitality | 2010 |
| Direct Access Flooring Ltd | Wholesale & retail | 2023 |
| Direct Bazar Limited | Wholesale & retail | 2014 |
| Direct Domestic Appliances UK Ltd | Wholesale & retail | 2006 |
| Direct Essentials Ltd | Extraterritorial | 2024 |
| Direct Skip Hire Limited | Administrative & support | 2016 |
| Direct Travel and Flights Ltd | Administrative & support | 2022 |
| Discovery Carers Limited | Health & social care | 2020 |
| Discovery DRY Linings Ltd | Construction | 2025 |
| Discovery Services Limited | Administrative & support | 2010 |
| Distracted Genius Ltd | Manufacturing | 2026 |
| District Hill Consulting Ltd | Information & communication | 2025 |
| District Security Services Limited | Administrative & support | 2025 |
| Diva’S Salon Ltd | Other services | 2025 |
| Diversity Health &Social Care Limited | Administrative & support | 2012 |
| Diversity Property Investments Limited | Real estate | 2024 |
| Divine Community Services C.I.C. | Information & communication | 2012 |
| Divine Covenant Ministries | Other services | 2013 |
| Divine Desserts by Miha Ltd | Manufacturing | 2026 |
| Divine Drive Chauffeurs Ltd | Transport & logistics | 2023 |
| Divine Grace Property Limited | Real estate | 2026 |
| Divine Johnson Ventures Limited | Administrative & support | 2019 |
| Divine Services Staff Recruitment Limited | Administrative & support | 2023 |
| Divinehoneyjoy Kiddies Limited | Health & social care | 2024 |
| Divon Group Ltd | Information & communication | 2024 |
| Dixy Original Ltd | Hospitality | 2024 |
| Diyeem Global Ltd | Transport & logistics | 2026 |
| Dizfam Ltd | Hospitality | 2021 |
| Dizz Foods Limited | Wholesale & retail | 2017 |
| Djclm Ltd | Wholesale & retail | 2026 |
| DJD Roofing Ltd | Construction | 2015 |
| DK Global Trades Ltd | Wholesale & retail | 2025 |
| DK01 Ltd | Wholesale & retail | 2026 |
| Dkeem Care Limited | Health & social care | 2021 |
| Dkezelis Ltd | Construction | 2017 |
| DKL Resources Limited | Water & waste | 2004 |
| DKP Works Ltd | Administrative & support | 2022 |
| Dksquared Limited | Professional & scientific | 2017 |
| DM London Traders Ltd | Construction | 2019 |
| Dmadz Ltd | Wholesale & retail | 2025 |
| DMC Construction Utilities Ltd | Construction | 2023 |
| DMC Financial Services Limited | Professional & scientific | 2011 |
| Dmdc Construction Ltd | Construction | 2022 |
| Dmds Enterprise Limited | Construction | 2015 |
| DMI Customs Ltd | Transport & logistics | 2017 |
| Dmih Construction Ltd | Construction | 2023 |
| DML International (UK) Ltd | Construction | 2014 |
| DMM RO Construction Ltd | Construction | 2023 |
| DMT Luxe Ltd | Real estate | 2024 |
| DMV Builders Ltd | Construction | 2025 |
| Dmzd Limited | Wholesale & retail | 2025 |
| DNC FIX Building Ltd | Construction | 2018 |
| DNC Living Ltd | Real estate | 2017 |
| DNE Heritage Ltd | Real estate | 2026 |
| DNL Solution LLP | | 2019 |
| DNS Services Ltd | Construction | 2015 |
| DO Networks Ltd | Information & communication | 2025 |
| Doal Group Ltd | Financial services | 2022 |
| Doal Properties Ltd | Real estate | 2020 |
| Dobrepro Builders Ltd | Construction | 2025 |
| Dockland Exports Ltd | Administrative & support | 2020 |
| Docklands Estates Ltd | Real estate | 2020 |
| Docklands Security Services Ltd | Administrative & support | 2025 |
| Doctor Tint Ltd | Wholesale & retail | 2024 |
| Doda K9 Security Services Ltd | Administrative & support | 2021 |
| Doddle Solar Limited | Construction | 2025 |
| Doeize Ltd | Manufacturing | 2025 |
| Doja Build Ltd | Construction | 2023 |
| Dokau Ltd | Construction | 2020 |
| Dolayride Ltd | Extraterritorial | 2024 |
| Dolunay DOM Ltd | Real estate | 2023 |
| Domaduba Mechanical Services Ltd | Professional & scientific | 2015 |
| Domaine Prestige Ltd | Real estate | 2025 |
| Dominant Energy Ltd | Administrative & support | 2026 |
| Dominion Childcare Services Limited | Education | 2019 |