| Dls-Global Import Export Ltd | Wholesale & retail | 2024 |
| Dlvry.Net Limited | Professional & scientific | 2015 |
| DM & CT Letting Ltd | Real estate | 2024 |
| DM Property Services Redditch Ltd | Construction | 2019 |
| Dmcb Trans Ltd | Transport & logistics | 2022 |
| DMS Design & Build Ltd | Construction | 2022 |
| Doebank Property Management Limited | Households | 2007 |
| Dollar Kingdoms Ltd | Wholesale & retail | 2026 |
| Dolton Transport Limited | Real estate | 1987 |
| Domus Ferrea Ltd | Construction | 2025 |
| Done and Dusted Residential Limited | Administrative & support | 2016 |
| Done Right Scaffolding Limited | Construction | 2023 |
| Dorado Ltd | Wholesale & retail | 2003 |
| Dorclean Hygiene Services Limited | Administrative & support | 2025 |
| Dordtech UK Limited | Extraterritorial | 2015 |
| Doredecor Kitchen Limited | Wholesale & retail | 2026 |
| Dorel Car Wash Ltd | Administrative & support | 2026 |
| Dorel Maintenance Ltd | Construction | 2026 |
| Dormer Group Limited | Construction | 2021 |
| Dormer Hire Centre Limited | Administrative & support | 2010 |
| Dormer Plant Hire Limited | Administrative & support | 2001 |
| Dormer Property Developments Limited | Construction | 2017 |
| Dormer Skip Hire Limited | Water & waste | 2021 |
| Dorslet Limited | Real estate | 2019 |
| Double Aces Care Ltd | Administrative & support | 2023 |
| Dovetail Marketing for Good Causes Limited | Professional & scientific | 2017 |
| Down the Range Coffee Ltd | Wholesale & retail | 2022 |
| Downshift Ltd | Information & communication | 2026 |
| DPC Fire Protection Ltd | Construction | 2026 |
| DPG Machinery Limited | Manufacturing | 2018 |
| DPH Logistics Ltd | Transport & logistics | 2024 |
| DPT Drives Ltd | Construction | 2022 |
| DQ Foods Ltd | Hospitality | 2026 |
| DR Noreen Medical Aesthetics Ltd | Health & social care | 2024 |
| DR Siobhan Sanders Ltd | Education | 2026 |
| Draconis Strategic Intelligence Limited | Information & communication | 2026 |
| Dragon Retail Limited | Wholesale & retail | 2024 |
| DRAGON-K9 Ltd | Administrative & support | 2025 |
| Drainsure Ltd | Other services | 2024 |
| Drayton Manor Farms Limited | Agriculture & fishing | 2014 |
| Drayton Stratford Limited | Real estate | 2014 |
| Drayvan Limited | Professional & scientific | 2020 |
| DRE and SAM Ltd | Other services | 2025 |
| Drexler Lambert Limited | Information & communication | 2011 |
| Drivesafetyre.Com Ltd | Manufacturing | 2020 |
| Drivetrack Limited | Information & communication | 2026 |
| Droitwich Spa Wellbeing & Sports Hub CIC | Education | 2024 |
| Drow Wear Ltd | Wholesale & retail | 2024 |
| Drumm Construction Limited | Construction | 2014 |
| DS Flooring Solutions Ltd | Construction | 2024 |
| DS Rentals Limited | Real estate | 2021 |
| Dsaglobal Ltd | Health & social care | 2025 |
| Dsfs Holdings Limited | Financial services | 2025 |
| DT Pubs Ltd | Hospitality | 2018 |
| DTB Electrical Limited | Construction | 2017 |
| DTB Homes Ltd | Real estate | 2021 |
| Dubi Limited | Transport & logistics | 2019 |
| Dubiel Group Ltd | Real estate | 2023 |
| Ductoris Consultancy Ltd | Professional & scientific | 2026 |
| Dugless Ltd | Extraterritorial | 2023 |
| Dumana Agro Ltd | Professional & scientific | 2014 |
| Dunedin Haden Cross Limited | Construction | 2017 |
| Dunedin Hartshill Limited | Construction | 2016 |
| Dunedin Homes and Developments Limited | Construction | 1995 |
| Dunedin Homes Ltd | Construction | 2022 |
| Dunedin Lettings Limited | Real estate | 2012 |
| Dunedin Meadows Ltd | Construction | 2022 |
| Dunedin Pelsall Limited | Construction | 2015 |
| Dunlop Coatings Limited | Manufacturing | 2019 |
| Durakool Limited | Administrative & support | 2023 |
| Dutchview Information Technology Ltd | Information & communication | 2016 |
| DW Hair Warwick Limited | Other services | 2026 |
| Dwell Property Development Limited | Real estate | 2016 |
| DWS Properties Limited | Real estate | 2021 |
| DXB Logistics Limited | Transport & logistics | 2026 |
| Dynamic Custom Projects Limited | Administrative & support | 2024 |
| Dynamics 365 International Limited | Information & communication | 2020 |
| Dynamik Theatre Group Ltd | Arts & recreation | 2026 |
| Dynamik Theatre Limited | Administrative & support | 2016 |
| Dynamize Marketing Limited | Information & communication | 2019 |
| Dynamo Property Services Ltd | Households | 2016 |
| Dynasty Legal Limited | Professional & scientific | 2023 |
| Dyson Intl Co. Ltd | Professional & scientific | 2023 |
| E & J Contractors Limited | Construction | 2006 |
| E Adams Enterprises V2 Ltd | Construction | 2025 |
| E F C Performance Limited | Education | 2011 |
| E J Carpentry Ltd | Construction | 2012 |
| E L R Management Services Ltd | Professional & scientific | 2018 |
| E Safety System Limited | Information & communication | 2021 |
| E&L Caravans Hire Ltd | Administrative & support | 2019 |
| E-Taxi Ltd | Transport & logistics | 2021 |
| E-Trackit Limited | Extraterritorial | 2012 |
| E.C. Theedam Limited | Wholesale & retail | 1903 |
| E.C.L. Commercial Limited | Administrative & support | 2015 |
| E.O.E. Property Services Limited | Real estate | 2009 |
| E2E Business Solutions Limited | Professional & scientific | 2014 |
| EAB Developments Limited | Construction | 2019 |
| Eagleex Ltd | Professional & scientific | 2026 |
| Earldoms Farm LLP | | 2014 |
| Early Years Pathway Training Limited | Education | 2014 |