| DS Crime Advocacy Limited | Professional & scientific | 2014 |
| DS Haulage and Plant Services Ltd | Administrative & support | 2023 |
| DS Pinfold Ltd | Construction | 1992 |
| DS Properties (Midlands) Limited | Real estate | 2019 |
| DS Silicone Rendering Limited | Construction | 2025 |
| DSA PVT Limited | Wholesale & retail | 2022 |
| Dsapa Limited | Real estate | 2025 |
| DSB Digital Assets Ltd | Administrative & support | 2025 |
| DSB Investment Group Ltd | Real estate | 2021 |
| DSC Investments 2 Ltd | Financial services | 2025 |
| DSC Investments Ltd | Financial services | 2022 |
| Dsca Courses C.I.C. | Education | 2023 |
| Dscx Ltd | Financial services | 2022 |
| DSG Mekhana Ltd | Hospitality | 2018 |
| DSG the Old Oak Tree B&B Ltd | Hospitality | 2018 |
| Dsjk Holdings Limited | Financial services | 2025 |
| Dsjk Properties Ltd | Real estate | 2025 |
| DSK Residential Limited | Real estate | 2026 |
| DSP (Interiors) Limited | Construction | 2005 |
| DSP Office Interiors Limited | Professional & scientific | 2014 |
| DSP Structural Engineers Ltd | Professional & scientific | 2023 |
| DST Energy Ltd | Professional & scientific | 2019 |
| DSU Properties Ltd | Real estate | 2023 |
| DT Entertainment Ltd | Hospitality | 2026 |
| DT Propco 24 Limited | Financial services | 2024 |
| DT Publications Limited | Information & communication | 2006 |
| DTD Construction Ltd | Construction | 2024 |
| DTH Properties Limited | Construction | 2022 |
| DTH Property Maintenance Ltd | Construction | 2025 |
| DTJ Interiors Limited | Manufacturing | 2023 |
| DTJ Property Investments Ltd | Real estate | 2025 |
| DTM Drywall Finishing Limited | Construction | 2025 |
| Dtm-Gb Ltd | Professional & scientific | 2017 |
| DTV UK Construction Ltd | Construction | 2021 |
| DUA Catering Limited | Hospitality | 2025 |
| DUA Delight Limited | Hospitality | 2026 |
| DUA Property Group Ltd | Real estate | 2023 |
| Dubiel Design Ltd | Professional & scientific | 2018 |
| Dubrek CIC | Arts & recreation | 2023 |
| Duck Thai Ltd | Hospitality | 2025 |
| Ducklings Childcare (Godmanchester) Ltd. | Education | 2010 |
| Ducks on the Roof Ltd | Wholesale & retail | 2025 |
| Dudaproperties Ltd | Real estate | 2025 |
| Duesbury Court Management Company Limited | Households | 1999 |
| Duesbury House Management Ltd | Real estate | 2017 |
| Duffield Estates Ltd | Real estate | 2020 |
| Duffield Road Management Limited | Extraterritorial | 2016 |
| Dufi Ltd | Real estate | 2022 |
| Duhig Investments a Limited | Real estate | 2026 |
| Duke Properties (Nottingham) Ltd | Real estate | 2018 |
| Duke Street Management Limited | Real estate | 2004 |
| Dukes Field Management Company Limited | Households | 2021 |
| Dulcis Domus Limited | Real estate | 2009 |
| Dumonte (UK) Ltd | Transport & logistics | 1999 |
| Dumstar Ltd | Construction | 2016 |
| Dungi Trading Ltd | Transport & logistics | 2023 |
| Dunko Builders Limited | Construction | 2020 |
| Dunmar Developments Limited | Construction | 1991 |
| Dunmar Group Limited | Real estate | 2006 |
| Dunn Engineering Limited | Professional & scientific | 1970 |
| Dunnicliff Bros.Limited | Health & social care | 1945 |
| Dunnicliff Developments Ltd | Construction | 2018 |
| Dunorlan Limited | Other services | 2018 |
| Dunstall Park Management Company Limited | Real estate | 2017 |
| Dunstall Whittaker Law Limited | Professional & scientific | 2022 |
| Duntisbourne Capital Limited | Other services | 2017 |
| Dunworth Estates Ltd | Real estate | 2023 |
| Dunya Drip Ltd | Wholesale & retail | 2025 |
| DUO Limited | Other services | 2011 |
| Dupral Hunter Limited | Manufacturing | 1994 |
| Duqan Limited | Wholesale & retail | 2023 |
| Durose Group Developments Ltd | Construction | 2025 |
| Durose Group Ltd | Manufacturing | 2016 |
| Dusena Food Ltd | Wholesale & retail | 2025 |
| Dusty Rhodes Group Ltd | Wholesale & retail | 2023 |
| Dutta and Sons Ltd | Wholesale & retail | 2021 |
| Duval 'EYE' Limited | Professional & scientific | 2008 |
| Duval Security Holdings Limited | Financial services | 2009 |
| Duval Security Limited | Administrative & support | 2008 |
| DV Image Services Limited | Health & social care | 2026 |
| DV Ventures Limited | Real estate | 2010 |
| DV75 Ltd | Financial services | 2024 |
| DVB Engineering Services Limited | Professional & scientific | 2025 |
| DVN Capital Limited | Financial services | 2025 |
| DVS Dexter Vehicle Sales Ltd | Wholesale & retail | 2026 |
| DW Driving Academy Ltd | Education | 2026 |
| DW Homecare (Derby) Ltd | Financial services | 2022 |
| DW Homecare Ltd | Health & social care | 2017 |
| DW Lettings and Real Estate Ltd | Real estate | 2021 |
| DW Production Engineering Services Limited | Professional & scientific | 2011 |
| DWB Services Ltd | Information & communication | 2025 |
| Dwellings Property Ltd | Real estate | 2024 |
| DWT Finance Ltd | Real estate | 1987 |
| DYB Logistics Limited | Extraterritorial | 2024 |
| DYB Property Limited | Real estate | 2023 |
| Dylan*Stephen Ltd | Wholesale & retail | 2017 |
| Dylan`S General Store, OFF Licence & Newsagents Ltd | Transport & logistics | 2006 |
| Dymek Paving Ltd | Administrative & support | 2022 |
| Dynamic Aerospace Fabrications Ltd | Manufacturing | 2019 |
| Dynamic Care Housing Ltd | Health & social care | 2023 |