| Denton Wharf Properties Limited | Real estate | 2001 |
| Denwood Associates Limited | Real estate | 2003 |
| Denwood Residential Limited | Construction | 2018 |
| Denys Trans Ltd | Transport & logistics | 2015 |
| Dera Partnership Ltd | Hospitality | 2021 |
| Derma Edit Ltd | Wholesale & retail | 2025 |
| Derma Pro Clinic Ltd | Other services | 2023 |
| Dermeye Consultancy Limited | Other services | 2015 |
| Dermisol Laboratories Limited | Wholesale & retail | 2022 |
| Desi Palace Grill Ltd Ltd | Hospitality | 2024 |
| Design Ceramics Limited | Manufacturing | 2005 |
| Design for Management Limited | Professional & scientific | 2024 |
| Designer Direct Limited | Wholesale & retail | 2014 |
| Designer Smiles Limited | Health & social care | 2009 |
| Desrael Properties Limited | Real estate | 2025 |
| Deus LUX Rural Ltd | Administrative & support | 2025 |
| DEV Apartments Limited | Real estate | 2026 |
| Devcon Group Ltd | Construction | 2019 |
| Deverill Jenkins Architectural Services Limited | Professional & scientific | 2010 |
| Devonshire Capital Ltd | Real estate | 2022 |
| Devoted to the Past Ltd | Wholesale & retail | 2026 |
| Deyan Holdings Ltd | Financial services | 2023 |
| Deyan Properties Ltd | Real estate | 2019 |
| Deylight Business Services Limited | Professional & scientific | 2023 |
| Dfmdcare Ltd | Other services | 2019 |
| DFS Africa Ltd | Administrative & support | 2017 |
| DG Construction Southeast Ltd | Other services | 2016 |
| DGB Carpentry & Building Limited | Construction | 2017 |
| DGB Control Group Limited | Administrative & support | 2024 |
| DGM Fire Limited | Administrative & support | 2007 |
| DGR Contractors Ltd | Construction | 2012 |
| Dhar Consulting Limited | Information & communication | 2017 |
| Dharma Sanda Ltd | Wholesale & retail | 2024 |
| Dhco Ltd | Real estate | 2024 |
| Dhillon Mediservices Limited | Health & social care | 2015 |
| Dhillon Optical Limited | Wholesale & retail | 2023 |
| Dhiman Investments Limited | Real estate | 2018 |
| Diaa Enterprise Limited | Households | 2018 |
| Dial Furnishings Limited | Construction | 2020 |
| Dial Square Surveying Services Ltd | Professional & scientific | 2015 |
| Diametrical Limited | Professional & scientific | 2016 |
| Diamond Roofing and Paving Ltd | Construction | 2026 |
| Diamonds Window Cleaning Ltd | Administrative & support | 2022 |
| Diana Catalina Ltd | Education | 2022 |
| Dibugi Software Solutions Ltd | Wholesale & retail | 2019 |
| Dick & Dave Limited | Professional & scientific | 2013 |
| Digbeth 1 Syndicate Limited | Financial services | 2018 |
| Digifyhub Limited | Wholesale & retail | 2024 |
| Digital CVS Limited | Information & communication | 2008 |
| Digital DR Services Ltd | Wholesale & retail | 2023 |
| Digital DR SPV Ltd | Real estate | 2024 |
| Digital Edge Services Ltd | Information & communication | 2023 |
| Digital Experts UK Limited | Information & communication | 2001 |
| Digital IT Creations Ltd | Information & communication | 2024 |
| Digital Media Consultancy Limited | Professional & scientific | 2025 |
| Digitrack Ltd | Administrative & support | 2025 |
| DIL Global Consulting Limited | Education | 2023 |
| Dimension Interiors Limited | Construction | 2012 |
| Dimmelectrics Ltd | Construction | 2019 |
| Dincs Limited | Health & social care | 2008 |
| Dinky Days Photography Ltd | Arts & recreation | 2014 |
| Dinky Lash Ltd | Wholesale & retail | 2023 |
| Dinula PVT Ltd | Manufacturing | 2018 |
| Dipok Consultants Ltd | Other services | 2024 |
| Diran Holdings Limited | Real estate | 2022 |
| Direct Core Services Limited | Wholesale & retail | 2014 |
| Directmri Ltd | Professional & scientific | 2023 |
| Discount Cart Ltd | Wholesale & retail | 2025 |
| Discovery Sports Ltd | Wholesale & retail | 2026 |
| Diseno-Decor Limited | Administrative & support | 2024 |
| Disruptiv Limited | Professional & scientific | 2018 |
| Ditta Property Limited | Real estate | 2020 |
| Divara Holdings Limited | Health & social care | 2025 |
| Diversion Audio Limited | Information & communication | 2024 |
| Divine Light Ltd | Other services | 2022 |
| Divine Property Development Ltd | Real estate | 2019 |
| Divinyl Music Ltd | Arts & recreation | 2010 |
| DIY Finance Solutions Ltd | Professional & scientific | 2024 |
| DJ Barfoot Services Limited | Construction | 2021 |
| DJC Building & Refurbishment Limited | Construction | 2015 |
| DJC Design and Development Limited | Construction | 2024 |
| Djevs Limited | Professional & scientific | 2016 |
| DJM Electrical Contractors Ltd | Construction | 2026 |
| DJR Solutions Ltd | Real estate | 2019 |
| DJS Developments (South East) Limited | Construction | 2022 |
| DK Parcels Limited | Transport & logistics | 2023 |
| Dkjna Ltd | Wholesale & retail | 2021 |
| DKR Media Ltd | Arts & recreation | 2025 |
| DL Unique Ltd | Construction | 2020 |
| DLF Steel Fabricators Ltd | Manufacturing | 2018 |
| DLH Lifting Services Ltd | Construction | 2015 |
| DLN Brickwork Limited | Construction | 2018 |
| DLS Leisure Ltd | Hospitality | 2022 |
| DLS Plumbing & Construction Services Limited | Construction | 2012 |
| DLS Scaffolding Services (UK) Ltd | Construction | 2018 |
| DM Express Deliveries Limited | Transport & logistics | 2014 |
| DMA Haulage Limited | Transport & logistics | 2026 |
| DMC IT Consulting Ltd | Information & communication | 2020 |
| DMC Property Investment Limited | Administrative & support | 2016 |
| DMC UK Services Limited | Professional & scientific | 2026 |