| DE Architectural Consultancy Ltd | Professional & scientific | 2021 |
| DE Oudh London Ltd | Wholesale & retail | 2021 |
| DE Retail Limited | Wholesale & retail | 2019 |
| DE Sousa Services Ltd | Other services | 2019 |
| Deal Dial Limited | Wholesale & retail | 2023 |
| Deciti Properties Limited | Construction | 2025 |
| Declorum Ltd | Professional & scientific | 2010 |
| Decor Line Ltd | Construction | 2020 |
| Decorative Art Solutions Ltd | Construction | 2023 |
| Dedicated Management Limited | Real estate | 2000 |
| DEE Building Construction Ltd | Administrative & support | 2017 |
| Deekaye Solutions Ltd | Information & communication | 2018 |
| Deensfoodservice Ltd | Transport & logistics | 2021 |
| Deep and Sons Limited | Other services | 2018 |
| Deep Mann Ltd | Wholesale & retail | 2025 |
| Deeps Real Estates Limited | Real estate | 2025 |
| Deez Biscuits Ltd | Hospitality | 2025 |
| Deezyne Ltd | Administrative & support | 2016 |
| Defense on Demand Ltd | Professional & scientific | 2025 |
| Definitive Workz Ltd | Wholesale & retail | 2018 |
| Defriez-Ekpiken Enterprises Ltd | Administrative & support | 2025 |
| Defyne Skin Ltd | Other services | 2026 |
| Dejape Ltd | Construction | 2025 |
| Delea Homes Limited | Construction | 2026 |
| Delicious Services Ltd | Wholesale & retail | 2021 |
| Delights Cafe and Restaurant Limited | Wholesale & retail | 2019 |
| Delivergate Limited | Information & communication | 2020 |
| Delivery (London) Limited | Transport & logistics | 2020 |
| Delivery Express Logistics Limited | Transport & logistics | 1999 |
| Delivery Support Limited | Transport & logistics | 2021 |
| Deliz Company Ltd | Manufacturing | 2025 |
| Dellnux Limited | Wholesale & retail | 2025 |
| Delphinus Advisory Limited | Financial services | 2015 |
| Delta Professional Services Ltd | Real estate | 2022 |
| Delta Construction Limited UK Ltd | Construction | 2019 |
| Delta Fast Food Systems Ltd | Professional & scientific | 2020 |
| Delta Plus Services Limited | Other services | 2008 |
| Deltabase Communications Limited | Information & communication | 2011 |
| Deltec International Courier Limited | Transport & logistics | 1985 |
| Deluxe Goods Limited | Wholesale & retail | 2025 |
| Deluxe Interiors Ltd | Construction | 2013 |
| Deluxe Services Limited | Administrative & support | 2005 |
| Deluxe Staffing Limited | Administrative & support | 2020 |
| Demiluxe Pro Fire Protection Ltd | Construction | 2024 |
| Demiri Construction Ltd | Construction | 2025 |
| Dene Castle Limited | Administrative & support | 2017 |
| Denese Moto Gear Ltd | Wholesale & retail | 2024 |
| Denmylpad Limited | Health & social care | 2014 |
| Dental Arts Studio (Dental Care) Limited | Public administration | 2009 |
| Derwent Limited | Wholesale & retail | 2025 |
| Desert Monkey Limited | Information & communication | 2012 |
| Desh IT Solutions Ltd | Information & communication | 2014 |
| Desi Cartel Ltd | Wholesale & retail | 2026 |
| Desi Food Takeaway Limited | Hospitality | 2024 |
| Desi Glam Limited | Wholesale & retail | 2025 |
| Desi Meals Ltd | Manufacturing | 2025 |
| Desi Scaffolding Energy Ltd | Construction | 2023 |
| Desi Sherlock Films Ltd | Information & communication | 2019 |
| Desi Tadka Catering Ltd | Hospitality | 2025 |
| Desie Ltd | Wholesale & retail | 2023 |
| Design & Prosper Limited | Construction | 2019 |
| Design Endeavours Ltd | Professional & scientific | 2015 |
| Designer World Ltd | Wholesale & retail | 2020 |
| Desire's Builders and Constructions Ltd | Construction | 2023 |
| Desouza Analytics Ltd | Information & communication | 2025 |
| Dessert Nation Limited | Hospitality | 2025 |
| Dessi Divvas Limited | Other services | 2026 |
| Destiny Jones Ltd | Arts & recreation | 2022 |
| Detroit Diesel Ltd | Manufacturing | 2015 |
| DEV DEV Build and Design Ltd | Construction | 2026 |
| DEV Services London Ltd | Transport & logistics | 2016 |
| Development Properties Limited | Construction | 2000 |
| Devi Dyal Kaushal Ltd | Construction | 2024 |
| Device Planet Ltd | Wholesale & retail | 2023 |
| Devoted Property Services Ltd | Construction | 2026 |
| Devotee World Limited | Hospitality | 2019 |
| Dexter Distribution Ltd | Wholesale & retail | 2023 |
| Dezire Bathrooms Limited | Wholesale & retail | 2025 |
| DG Homedry Ltd | Construction | 2024 |
| Dgama Enterprises Ltd | Transport & logistics | 2021 |
| DGN Design & Build Ltd | Construction | 2024 |
| DGP Oxford Ltd | Real estate | 2025 |
| DGR Bedroom & Kitchen Ltd | Construction | 2024 |
| DGS Real Estate Ltd | Real estate | 2025 |
| DH Express Ltd | Hospitality | 2019 |
| Dhaba Cuisine Limited | Hospitality | 2018 |
| Dhagga Groups Retail Ltd | Wholesale & retail | 2025 |
| Dhaliwal (Bira) Properties Limited | Real estate | 2024 |
| Dhaliwal Construction London Ltd | Construction | 2022 |
| Dhaliwal Consultancy Limited | Professional & scientific | 2017 |
| Dhall Transport Ltd | Transport & logistics | 2025 |
| Dhanya Trading Ltd | Wholesale & retail | 2025 |
| Dharam Property Developments Ltd | Real estate | 2024 |
| Dhatt Holdings Limited | Real estate | 2019 |
| DHC Finance Ltd | Professional & scientific | 2015 |
| DHI Homes Ltd | Other services | 2015 |
| Dhillon Clinical Consulting Limited | Professional & scientific | 2022 |
| Dhillon Investments (London) Limited | Real estate | 2020 |
| Dhillonmeet Ltd | Transport & logistics | 2026 |
| Dhir Holdings Limited | Real estate | 2022 |