| Daniel Masters Ltd | Professional & scientific | 2016 |
| Daniel Polished Concrete Limited | Manufacturing | 2015 |
| Daniel Properties Limited | Real estate | 2008 |
| Danstock Limited | Households | 1985 |
| Daresbury Investment Limited Partnership | | 2009 |
| Dark Logistics Ltd | Transport & logistics | 2025 |
| Darn Yarns Limited | Wholesale & retail | 2025 |
| Dash Aviation Limited | Transport & logistics | 2000 |
| Datastox Limited | Information & communication | 2014 |
| Dave Morris Leisure Limited | Hospitality | 1991 |
| David Osborne Property Ltd | Extraterritorial | 2022 |
| Dawn Field Company Limited(The) | Households | 1963 |
| Dayhike Ltd | Wholesale & retail | 2023 |
| DBA Applied Biosystems (UK) Ltd | Manufacturing | 2020 |
| DBAR25 Limited | Real estate | 2025 |
| DBF Limited | Professional & scientific | 1992 |
| DCE Datacoms Limited | Information & communication | 2010 |
| DCE Engineering Ltd | Real estate | 2020 |
| Dcim Properties Limited | Real estate | 2025 |
| DE Poel Clarity Limited | Administrative & support | 2013 |
| DE Poel Community Limited | Information & communication | 2005 |
| DE Poel One Source Limited | Administrative & support | 2002 |
| Define Consulting Limited | Construction | 2026 |
| Delamere Dairy Holdings Limited | Professional & scientific | 2008 |
| Delamere Dairy Limited | Wholesale & retail | 1999 |
| DELIVERED4YOU Limited | Public administration | 2023 |
| DEM Bros Property Ltd | Real estate | 2022 |
| Demographic Limited | Professional & scientific | 2004 |
| DEN Architectural Design Consultancy Ltd | Professional & scientific | 2017 |
| DEN Förvärvade Smaken Limited | Professional & scientific | 2014 |
| DENIZ3 Ltd | Other services | 2025 |
| Denneny Limited | Wholesale & retail | 2017 |
| Dennisco Ltd | Real estate | 2023 |
| Denton Holme Student Village Limited | Hospitality | 2012 |
| Derby Inter Limited | Hospitality | 2014 |
| Derek Gough Associates Limited | Professional & scientific | 2016 |
| Design Input Limited | Professional & scientific | 2013 |
| DESIGNERANTIQUES4U Ltd. | Wholesale & retail | 2014 |
| Desktop Audio Limited | Arts & recreation | 2022 |
| Devco 2025 Limited | Real estate | 2025 |
| Development Restoration Modernisation Ltd | Extraterritorial | 2017 |
| Devonhurst Management (Flats) Limited | Households | 1988 |
| Dexter & Jones Limited | Wholesale & retail | 2015 |
| Dfif Limited | Financial services | 2024 |
| DHB Investments Ltd | Real estate | 2024 |
| Digital Policy Partners Ltd | Professional & scientific | 2023 |
| Dinmore Holdings Limited | Real estate | 2004 |
| Dinmore Manor Estate Limited | Real estate | 1927 |
| Direct Redress Limited | Financial services | 2011 |
| Distinct Rugby Limited | Professional & scientific | 2017 |
| Distinct Sports UK Limited | Extraterritorial | 2024 |
| Distinctly FIN Holdings Limited | Financial services | 2025 |
| Dive in Solutions Limited | Professional & scientific | 2025 |
| Diverse Select Ltd | Health & social care | 2020 |
| Divine Beauty and Nails Limited | Other services | 2023 |
| Divine Creator Ltd | Manufacturing | 2013 |
| Djet Holdings Limited | Financial services | 2024 |
| DK Coatings Ltd | Manufacturing | 2020 |
| DL Group Holdings Limited | Extraterritorial | 2017 |
| DL Group Limited | Financial services | 2016 |
| DLR Engineering Ltd | Other services | 2026 |
| DNB Coffee House Limited | Hospitality | 2019 |
| Dolgellau Golf Club Limited | Real estate | 2004 |
| Domus Real Ltd | Real estate | 2025 |
| DON Perfetto Ltd | Hospitality | 2019 |
| Donald Nield Limited | Wholesale & retail | 2015 |
| Doug the Plug Ltd | Manufacturing | 2009 |
| Dowthwaite Engineering Limited | Professional & scientific | 2017 |
| DR Helen Kennedy Ltd | Health & social care | 2025 |
| Draca Marine Ltd | Construction | 2018 |
| Dragon Wealth Ltd | Financial services | 2024 |
| Drift Drinks Ltd | Manufacturing | 2025 |
| Drive & WIN Limited | Financial services | 2019 |
| Drivenbydrew Limited | Education | 2026 |
| DRS Jones Ltd | Professional & scientific | 2019 |
| DTA Software Limited | Information & communication | 2018 |
| Duffy (Macclesfield) Limited | Wholesale & retail | 1992 |
| DUN COW Knutsford Ltd | Hospitality | 2025 |
| DUN COW Ollerton Ltd | Hospitality | 2015 |
| Dunas Beach Apartment 100 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 101 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 102 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 103 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 104 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 105 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 106 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 107 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 108 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 109 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 110 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 111 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 112 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 113 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 114 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 115 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 116 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 117 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 118 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 119 Limited | Professional & scientific | 2011 |
| Dunas Beach Apartment 120 Limited | Professional & scientific | 2011 |