| Driver Commisioning & Testing Service Limited | Wholesale & retail | 2007 |
| Driver Deals Autos Ltd | Wholesale & retail | 2025 |
| DRIVERSOLUTIONS247 Ltd | Construction | 2021 |
| Drivesecure Limited | Administrative & support | 2025 |
| DRK Properties Ltd | Real estate | 2021 |
| Droflaw Consulting Ltd | Professional & scientific | 2025 |
| Dromor Limited | Real estate | 2017 |
| Dronci Ltd | Transport & logistics | 2019 |
| Dropai Ltd | Information & communication | 2025 |
| Dropyou Ltd | Information & communication | 2025 |
| Drovenco Ltd | Professional & scientific | 2025 |
| Drr-Pro Ltd | Transport & logistics | 2026 |
| DRS Protection Limited | Administrative & support | 2019 |
| Drumbeat Marketing UK Ltd | Information & communication | 2014 |
| DRV Consulting Limited | Professional & scientific | 2025 |
| DRW Pewex Ltd | Transport & logistics | 2025 |
| DRY Herb Accessories Ltd | Wholesale & retail | 2021 |
| DRY Touch Ltd | Administrative & support | 2024 |
| DS Building Services (Doncaster) Ltd | Construction | 2018 |
| DS Discount Flooring Warehouse Ltd | Construction | 2024 |
| DS Landa Limited | Professional & scientific | 2006 |
| DS Maintenance Limited | Manufacturing | 2015 |
| DS Rail Recruit Ltd | Administrative & support | 2026 |
| DSA Chemicals Limited | Manufacturing | 1993 |
| DSF Trans Ltd | Transport & logistics | 2024 |
| DSL Leisure Limited | Hospitality | 2016 |
| DSLP11 Ltd | Extraterritorial | 2022 |
| DSLP12 Ltd | Extraterritorial | 2022 |
| DSLP13 Ltd | Extraterritorial | 2022 |
| DSLP14 Ltd | Extraterritorial | 2022 |
| DSLP15 Ltd | Extraterritorial | 2022 |
| DSLP16 Ltd | Extraterritorial | 2022 |
| DSLP19 Ltd | Extraterritorial | 2022 |
| DSLP20 Ltd | Extraterritorial | 2022 |
| DSLP21 Ltd | Extraterritorial | 2022 |
| DSLP22 Ltd | Extraterritorial | 2022 |
| Dsmm Property Holdings Limited | Real estate | 2017 |
| Dsol Global Ltd | Information & communication | 2021 |
| DSS Group Limited | Financial services | 2016 |
| Dstec Limited | Transport & logistics | 2022 |
| DSW Group Limited | Financial services | 2026 |
| DT (Yorkshire) Holdings Limited | Financial services | 2022 |
| DT Developments ( Yorkshire) Ltd | Construction | 2020 |
| DT Estates (Yorkshire) Ltd | Construction | 2023 |
| DT3D Limited | Information & communication | 2017 |
| DTA I.T. Consultancy Ltd | Information & communication | 2016 |
| Dtac Trading Ltd | Wholesale & retail | 2025 |
| DTB Water Ltd | Water & waste | 2022 |
| DUA Enterprise Limited | Wholesale & retail | 2023 |
| Dual Inventive Ltd | Professional & scientific | 2009 |
| Dual Vision Developments Ltd | Construction | 2024 |
| Dualmoor Investments Limited | Real estate | 1979 |
| Dubai Food Store Ltd | Wholesale & retail | 2026 |
| Dubai Gold Trading LLP | | 2026 |
| Dubhe Ltd | Professional & scientific | 2021 |
| Duchi Ltd | Health & social care | 2026 |
| Duco Developments 16 Ltd | Extraterritorial | 2016 |
| Duco Group UK Limited | Professional & scientific | 2009 |
| Ducu Dragos Limited | Transport & logistics | 2019 |
| Dude Consulting Limited | Professional & scientific | 2016 |
| Dudek Services Ltd | Administrative & support | 2025 |
| Dudgeon Building & Roofing Limited | Construction | 2006 |
| DUE Sorelle Limited | Manufacturing | 2019 |
| Duke Trading Ltd | Wholesale & retail | 2024 |
| Dukeries Plumbing & Heating Services Ltd | Construction | 2009 |
| Dumitru Ltd | Wholesale & retail | 2023 |
| Duncan Donald (Holdings) Limited | Professional & scientific | 2010 |
| Duncan Donald Limited | Real estate | 2010 |
| Dunclin (Myers) Ltd | Manufacturing | 2023 |
| Dunite Consulting Limited | Professional & scientific | 2024 |
| Dunniwood Lodge (Doncaster) Limited | Health & social care | 2014 |
| Dunscroft Canine Fertility Services Ltd | Agriculture & fishing | 2024 |
| Dunscroft Together CIC | Health & social care | 2023 |
| Dunscroft Welfare Club Limited | Hospitality | 2007 |
| Dunscroft Welfare Sports Association | Arts & recreation | 2006 |
| Duplo Developments Limited | Construction | 2017 |
| Dupontyachtservice Ltd | Manufacturing | 2025 |
| Durcan Trans Ltd | Transport & logistics | 2018 |
| Durdy & Co Limited | Professional & scientific | 2021 |
| Dureza Ltd | Professional & scientific | 2026 |
| Durham Lane Properties Limited | Real estate | 2011 |
| Durham Lane Property Holdings Limited | Real estate | 2024 |
| Durham Villages Regeneration Limited | Construction | 2001 |
| Duru Cleaning Ltd | Administrative & support | 2019 |
| Dutch Bookkeeper LLP | | 2018 |
| Dutch Mountain Limited | Financial services | 2006 |
| Dutu Ltd | Transport & logistics | 2025 |
| Duzel Ltd | Real estate | 2022 |
| DV Brewery Ltd | Extraterritorial | 2013 |
| DV Trading Ltd | Manufacturing | 2019 |
| DVA Logisitc Ltd | Hospitality | 2019 |
| Dvash Ltd | Hospitality | 2018 |
| Dvms Group Limited | Financial services | 2025 |
| DVN LED Finance Ltd | Professional & scientific | 2026 |
| DW Bramley Limited | Professional & scientific | 2025 |
| DW Pipeline and Construction Ltd | Construction | 2025 |
| DW Rail Testing Ltd | Construction | 2025 |
| Dwight Morrey Wealth Management Ltd | Financial services | 2012 |
| DWK Enterprises Limited | Households | 2026 |
| DXF Ltd | Professional & scientific | 2018 |