| Discovery Finance Ltd | Financial services | 2026 |
| Discovery Property Solutions Ltd | Real estate | 2022 |
| Distinct Performance Ltd | Arts & recreation | 2019 |
| Divine Gracious Company Ltd | Health & social care | 2023 |
| Divine Greek 26 Ltd | Hospitality | 2026 |
| Divine Optical Services Ltd | Professional & scientific | 2023 |
| Dixbits Ltd | Wholesale & retail | 2025 |
| Dixon Electrical Services Ltd | Construction | 2017 |
| Dixon Property Rentals Ltd | Real estate | 2022 |
| Dixon Supply (Co.) Ltd | Arts & recreation | 2024 |
| DIY Blinds Ltd | Wholesale & retail | 2025 |
| DJ Butler Logistics Ltd | Transport & logistics | 2025 |
| DJ Insulation Ltd | Mining & quarrying | 2025 |
| DJA Ventures Ltd | Wholesale & retail | 2024 |
| DJB Technologies Ltd | Information & communication | 2024 |
| Djhaigh Group Holdings Limited | Financial services | 2026 |
| DJR Contract Services Limited | Professional & scientific | 2017 |
| DJS Sports Limited | Financial services | 2025 |
| DJT Consultancy Ltd | Information & communication | 2023 |
| DKO Welding Ltd | Manufacturing | 2019 |
| DKZ Motors Ltd | Wholesale & retail | 2026 |
| DLI Industrial Ltd | Construction | 2025 |
| DLS (NE) Holdings Limited | Hospitality | 2018 |
| DM Cleaning Services (North East) Limited | Administrative & support | 2025 |
| DM Glass Electrical Services Ltd | Construction | 2014 |
| DM Landscaping & Driveways Ltd | Administrative & support | 2025 |
| Dm-Infrastructure Services Ltd | Construction | 2022 |
| Dmaddison Limited | Hospitality | 2025 |
| Dmaffey Ltd | Construction | 2024 |
| DMC Lifting Ltd | Construction | 2026 |
| DMC Rigging and Erecting Ltd | Manufacturing | 2023 |
| Dmhm Property Investments Ltd | Real estate | 2025 |
| DMI Healthcare Limited | Professional & scientific | 2010 |
| DMV (UK) Ltd | Wholesale & retail | 2012 |
| DMW Recruitment Ltd | Administrative & support | 2019 |
| Dnest Ltd | Information & communication | 2022 |
| DOC & Prop Ltd | Administrative & support | 2017 |
| DOC Compliance Ltd | Administrative & support | 2026 |
| Docflow Limited | Information & communication | 2023 |
| Docherty Utilities Limited | Construction | 2016 |
| Dodds Brown LLP | | 2011 |
| Dogmeat Ltd | Wholesale & retail | 2026 |
| Doherty Contractors Ltd. | Construction | 2021 |
| Dolan Property Services Limited | Real estate | 2014 |
| Dominica Dining Limited | Hospitality | 2023 |
| Dominion Cleaners Limited | Administrative & support | 2024 |
| Dominion Digital Media Ltd | Manufacturing | 2025 |
| Dominion Distribution Service Ltd | Transport & logistics | 2024 |
| Dominion Eatables Limited | Hospitality | 2024 |
| Dominion Health Care Services Limited | Health & social care | 2016 |
| Dominion Security Sevices Ltd | Administrative & support | 2024 |
| Don'T Forget 2 Dream Limited | Professional & scientific | 2023 |
| Donkin Capital Properties Ltd | Administrative & support | 2026 |
| Doqument Ltd | Real estate | 2023 |
| Dormant Company 06758784 Limited | Real estate | 2008 |
| DOT Nation Ltd | Wholesale & retail | 2026 |
| Double A-Side Ltd | Professional & scientific | 2021 |
| Double L Design & Print Ltd | Professional & scientific | 2024 |
| Doug Pope Heating Services Ltd | Construction | 2014 |
| Douglas Kishi Logistics Ltd | Transport & logistics | 2025 |
| Douglas Tate Logistics Ltd | Transport & logistics | 2025 |
| Dovecot Pizzeria Ltd | Hospitality | 2026 |
| Dovetail Group (UK) Ltd | Administrative & support | 2011 |
| DP Autotech Ltd | Wholesale & retail | 2024 |
| DPARKINSON85 Ltd | Construction | 2019 |
| DPC Technology Limited | Professional & scientific | 2007 |
| Dpms Consultancy Ltd | Professional & scientific | 2020 |
| DPS Property Rentals Ltd | Real estate | 2024 |
| DPS Site Services Ltd | Construction | 2024 |
| DPW R&L Ltd | Construction | 2022 |
| DR a Ferguson Psychology Limited | Education | 2024 |
| DR Browns (Middlesbrough) Ltd | Hospitality | 2018 |
| DR Jellies Ltd | Hospitality | 2024 |
| DR K Dasgupta Limited | Health & social care | 2013 |
| DR Simon Forster Psychiatry Limited | Health & social care | 2020 |
| Dragonfly Surveys and Maintenance Limited | Professional & scientific | 2016 |
| Drainage & Groundwork Services Limited | Water & waste | 2017 |
| Draxieto Projects Limited | Real estate | 2023 |
| DRD Offshore Services Limited | Professional & scientific | 2015 |
| Drdb Rigging Ltd | Professional & scientific | 2025 |
| Dream Lashes Ltd | Other services | 2025 |
| Dream Seeds Limited | Wholesale & retail | 2011 |
| Dreampath Digital Solutions Ltd | Information & communication | 2025 |
| Drfoodd Ltd | Hospitality | 2025 |
| Drinkel Hospitality Limited | Hospitality | 2024 |
| Driveease Logistics Ltd | Transport & logistics | 2025 |
| Driven Car Sales Limited | Wholesale & retail | 2009 |
| Driven Prestige Ltd | Wholesale & retail | 2025 |
| Drrm Properties Ltd | Real estate | 2026 |
| Drtn Services Limited | Information & communication | 2023 |
| Drury Designs Limited | Information & communication | 2006 |
| DRZ Construction Ltd | Construction | 2023 |
| DRZ Estates Limited | Financial services | 2024 |
| DS Holidays Limited | Administrative & support | 2025 |
| DS UK Consultancy Ltd | Professional & scientific | 2026 |
| DSI Capital Ltd | Real estate | 2023 |
| Dsrecruitment Ltd | Professional & scientific | 2019 |
| Dsus Ltd | Construction | 2025 |
| DT Fire Ltd | Public administration | 2019 |
| DT Plant Hire Limited | Administrative & support | 2013 |