| Digital Horizons Group Limited | Administrative & support | 2023 |
| Digital Impact AE Limited | Professional & scientific | 2025 |
| Digitone Technologies Ltd | Information & communication | 2024 |
| Digits Financial Services Limited | Professional & scientific | 2017 |
| Diligent Bookkeeping Services Ltd | Professional & scientific | 2021 |
| Dimic Phones Ltd | Wholesale & retail | 2024 |
| Direct Commercial Flooring Holdings Limited | Wholesale & retail | 2017 |
| Direct Commercial Flooring Limited | Wholesale & retail | 2017 |
| Direct Electrical Supplies Limited | Wholesale & retail | 1988 |
| Direct Mobility on Line Limited | Wholesale & retail | 2007 |
| Direct Recovery Stoke Limited | Transport & logistics | 2025 |
| Direct Rentals Stoke Ltd | Administrative & support | 2025 |
| Direct Response UK Ltd | Transport & logistics | 2007 |
| Direct Travel Stoke Ltd | Transport & logistics | 2020 |
| Direct-Energy Associates Limited | Energy | 2005 |
| DIRECT4PUBLIC Ltd | Wholesale & retail | 2021 |
| Diroil Limited | Wholesale & retail | 2021 |
| Dirtease Ltd | Administrative & support | 2025 |
| Disability Solutions West Midlands | Other services | 2010 |
| Discount Discs (UK) Limited | Wholesale & retail | 2006 |
| Discovery Empire Ltd | Other services | 2020 |
| Discovery Windows Ltd | Other services | 2020 |
| Disruptive Ltd | Professional & scientific | 2025 |
| Distinct Detail UK Ltd | Administrative & support | 2026 |
| Distinctive Cosmetics Limited | Wholesale & retail | 2025 |
| Diverse Fostering Limited | Health & social care | 2018 |
| Diverse Properties Staffordshire Ltd | Real estate | 2024 |
| Dividy Convenience Limited | Wholesale & retail | 2024 |
| Divine Gift Ventures (DGV) Limited | Wholesale & retail | 2013 |
| Divine Inferno Ltd | Arts & recreation | 2020 |
| Divinesfoods Ltd | Hospitality | 2025 |
| Division 7 Media Ltd | Information & communication | 2021 |
| Divotmade Limited | Wholesale & retail | 2025 |
| Dizzo Consulting (UK) Limited | Wholesale & retail | 2011 |
| Dizzy Heights Specialist Services Ltd | Education | 2023 |
| Dizzy Heights Staffs C.I.C. | Education | 2021 |
| DJ & KA Property Limited | Real estate | 2020 |
| DJH Audit Limited | Professional & scientific | 2016 |
| DJH Bexley Topco Ltd | Professional & scientific | 2025 |
| DJH Business Advisers Limited | Professional & scientific | 1997 |
| DJH Derby Topco Limited | Professional & scientific | 2024 |
| DJH Estate Planning Limited | Professional & scientific | 2023 |
| DJH Halesowen Topco Limited | Professional & scientific | 2025 |
| DJH Holding Group Limited | Financial services | 2022 |
| DJH Ireland Topco Ltd | Professional & scientific | 2025 |
| DJH IT Topco Limited | Professional & scientific | 2024 |
| DJH Lwcc Topco Ltd | Professional & scientific | 2025 |
| DJH Perspective Wealth Management Limited | Financial services | 2025 |
| DJH Surveying Limited | Professional & scientific | 2017 |
| Djh's Autos Ltd | Wholesale & retail | 2020 |
| Djhdance Limited | Information & communication | 2019 |
| DJK Investment Properties Ltd | Real estate | 2026 |
| Djka Limited | Construction | 2024 |
| Djmavx Ltd | Arts & recreation | 2020 |
| Djoréa Ltd | Wholesale & retail | 2026 |
| DJT Tech Services Ltd | Professional & scientific | 2017 |
| DJW Bespoke Catering Ltd | Hospitality | 2019 |
| DJW Comms Ltd | Information & communication | 2025 |
| DJZ Limited | Construction | 2010 |
| DK Logistics ( Motorsport) Ltd | Transport & logistics | 2012 |
| DKC Properties Limited | Real estate | 2023 |
| DL Business Center Ltd | Wholesale & retail | 2022 |
| DL Stoke Property Ltd | Real estate | 2024 |
| DLA Food Ltd | Hospitality | 2019 |
| Dlatrans Ltd | Transport & logistics | 2019 |
| DLI Couriers Ltd | Transport & logistics | 2022 |
| DLM Enterprises Ltd | Wholesale & retail | 2020 |
| Dlrs Local Ltd | Wholesale & retail | 2025 |
| Dlux Cakes Ltd | Manufacturing | 2022 |
| DM Ceramics Studio Ltd | Manufacturing | 2023 |
| DM Property Solutions Ltd | Construction | 2012 |
| DM Roadline Ltd | Transport & logistics | 2026 |
| DMB Fire Safety Ltd | Professional & scientific | 2026 |
| DMB Services (Staffs) Ltd | Other services | 2017 |
| DMC Haulage Limited | Transport & logistics | 2022 |
| Dmdevelopements Ltd | Construction | 2024 |
| DMI Management Ltd | Construction | 2024 |
| DMJ Investment Group Ltd | Real estate | 2025 |
| DMK Holdco Ltd | Financial services | 2024 |
| DMK Homes Limited | Real estate | 2020 |
| DMK Projects Ltd | Administrative & support | 2015 |
| DMS Autotech Ltd | Manufacturing | 2018 |
| DMS Doors Ltd | Manufacturing | 2020 |
| DMT Holdings Limited | Construction | 2024 |
| DMT Linens Limited | Wholesale & retail | 2021 |
| DNA Property & Investment Group Ltd | Real estate | 2025 |
| DNB Pharma Limited | Wholesale & retail | 2012 |
| DNS Electrical Services Ltd | Professional & scientific | 2024 |
| DO Company Trading Limited | Wholesale & retail | 2026 |
| Doberman Group Ltd | Construction | 2024 |
| Dobrogea Ltd | Transport & logistics | 2020 |
| Dobson Fine Jewellery Ltd | Wholesale & retail | 2021 |
| Docentra Health Ltd | Information & communication | 2026 |
| Docere Group Limited | Information & communication | 2022 |
| Docksey Property Investments LLP | | 2009 |
| Doctor Asghar Limited | Health & social care | 2022 |
| Doctor D Limited | Health & social care | 2018 |
| Doctor Kostakopoulou Limited | Health & social care | 2012 |
| Doctors Aesthetics Ltd | Health & social care | 2022 |
| Doctors Medical Services Limited | Health & social care | 2023 |