| Deerwood Sanctuary Residential Carehome Limited | Health & social care | 2025 |
| Deignan Capital Limited | Real estate | 2026 |
| Deinarkhos Ltd | Transport & logistics | 2019 |
| DEL Vecchio Flooring Ltd | Construction | 2024 |
| Delairea Ltd | Hospitality | 2022 |
| Delaney Collyer Ltd | Education | 2021 |
| Delta Rubber Imports Limited | Wholesale & retail | 2009 |
| Delta Supreme Power Ltd | Manufacturing | 2025 |
| Demcilla Ltd | Wholesale & retail | 2023 |
| Demcore Ltd | Wholesale & retail | 2023 |
| Denby Dale Ltd | Transport & logistics | 2022 |
| Dendrocalamus Ltd | Administrative & support | 2022 |
| Dendron Ltd | Transport & logistics | 2021 |
| Denlil Limited | Real estate | 2016 |
| Denvic Contractors & Developments Limited | Construction | 2006 |
| Denvic Limited | Manufacturing | 1985 |
| Deortive Ltd | Administrative & support | 2023 |
| DEP Chassis Engineering Limited | Manufacturing | 2007 |
| Derryany Ltd | Transport & logistics | 2022 |
| Desire 2 Aspire C.I.C. | Education | 2024 |
| Deskleathers.Com Limited | Manufacturing | 2011 |
| Dessaubridge Ltd | Wholesale & retail | 2022 |
| Destination Fibre Ltd | Information & communication | 2023 |
| Destination Store Limited | Transport & logistics | 2003 |
| Devilfishnft Limited | Manufacturing | 2024 |
| Dexter Fishing Limited | Wholesale & retail | 2015 |
| Dezacones Ltd | Wholesale & retail | 2023 |
| Dezalores Ltd | Wholesale & retail | 2023 |
| DH Commercials Limited | Professional & scientific | 1996 |
| DH Lifts Limited | Financial services | 2019 |
| Dhanjal Capital Investments Ltd | Real estate | 2025 |
| Dharama Investments Ltd | Real estate | 2025 |
| Dhehshiyo Ltd | Transport & logistics | 2019 |
| Dhureessah Ltd | Administrative & support | 2022 |
| Diadem Care Limited | Health & social care | 2016 |
| Diamond Flat Roofing Ltd | Construction | 2014 |
| Diasevzith Ltd | Wholesale & retail | 2023 |
| Diasevzy Ltd | Wholesale & retail | 2023 |
| Dicofare Ltd | Wholesale & retail | 2023 |
| Didymochlaena Ltd | Wholesale & retail | 2022 |
| Dieffenbachia Ltd | Wholesale & retail | 2022 |
| Digi Trading Limited | Wholesale & retail | 2013 |
| Digicomp Ltd | Information & communication | 2024 |
| Dillenia Ltd | Construction | 2022 |
| Dimtemper Ltd | Administrative & support | 2019 |
| Dimtreeks Ltd | Administrative & support | 2019 |
| Dinamic Ltd | Arts & recreation | 2010 |
| Dinarchy Limited | Wholesale & retail | 2017 |
| Dingley Dell Enterprises Limited | Manufacturing | 2008 |
| Dipteris Ltd | Construction | 2022 |
| Direct 2 Door Flooring Ltd | Construction | 2018 |
| Director Tax Planning and Advice Ltd | Extraterritorial | 2013 |
| Discover and Play Ltd | Real estate | 2015 |
| Distinctive Construction Limited | Construction | 2015 |
| Distinctive Flooring Limited | Wholesale & retail | 2005 |
| DJ Supplies, Sound and Lighting Limited | Wholesale & retail | 2003 |
| DJR Heating Ltd | Construction | 2022 |
| DJS Fork Truck Limited | Manufacturing | 1998 |
| DKL Electrical Contractors Ltd | Construction | 2022 |
| DL Wardle Ltd | Administrative & support | 2022 |
| DLC IT Solutions Consulting Ltd | Information & communication | 2022 |
| DM Payroll Services Ltd | Professional & scientific | 2017 |
| DMH Consulting Services Limited | Professional & scientific | 2023 |
| DMH Courier Ltd | Transport & logistics | 2024 |
| DML Racing Limited | Arts & recreation | 2018 |
| DMS Logistics Software (Holdings) Limited | Financial services | 2017 |
| DMS Logistics Software Limited | Information & communication | 2014 |
| DNA Autohaus Ltd | Wholesale & retail | 2015 |
| DNA Performance Limited | Wholesale & retail | 2021 |
| Document Safeguard Ltd | Professional & scientific | 2011 |
| Dominabat Ltd | Administrative & support | 2019 |
| Dominic Sheppard Racing Ltd | Wholesale & retail | 2025 |
| Doolabi Limited | Real estate | 2000 |
| Doolittle & Dalley Holdings Limited | Real estate | 2019 |
| Doriacurst Ltd | Wholesale & retail | 2023 |
| Doris Photography Limited | Information & communication | 2022 |
| Dorwingear Limited | Construction | 1974 |
| Dottinger Properties Limited | Real estate | 2023 |
| Doulizore Ltd | Health & social care | 2023 |
| Dowles Brook Homes Ltd | Construction | 2021 |
| DP Plastering Services Ltd | Construction | 2025 |
| DPH Business Services LLP | | 2015 |
| DPL Rigging Ltd | Construction | 2020 |
| DR Tasadduq ALI Ltd | Health & social care | 2022 |
| DR. China Wellness Ltd | Health & social care | 2016 |
| Dr.Tromans Limited | Professional & scientific | 2019 |
| Draexarnav Ltd | Administrative & support | 2019 |
| Drag ME OUT Ltd | Hospitality | 2024 |
| Dragon Developments & Interiors Ltd | Real estate | 2020 |
| Dragon Taekwondo Ltd | Education | 2022 |
| Draincure and SON Ltd | Construction | 2022 |
| Drakelow Installation Services Ltd | Construction | 2018 |
| Draught Flow Technology Limited | Information & communication | 1994 |
| Dream Prize Giveawayz Limited | Arts & recreation | 2020 |
| Dream Wheels Giveaway Ltd | Wholesale & retail | 2024 |
| Dreams of Mirrors Ltd | Real estate | 2011 |
| Dreams Store Limited | Wholesale & retail | 2025 |
| Drenoren Ltd | Transport & logistics | 2024 |
| Dreweld Ltd | Professional & scientific | 2025 |
| Drezlierc Ltd | Administrative & support | 2022 |