| Desola NEO Limited | Financial services | 2022 |
| Detailed Building Services Ltd | Construction | 2023 |
| Detentiontrackr Limited | Other services | 2025 |
| DEV Haulage Limited | Transport & logistics | 2020 |
| Devinebrook Limited | Other services | 2019 |
| Deviz Ltd | Construction | 2021 |
| Devlaa Ltd | Wholesale & retail | 2016 |
| Devrel Talent Ltd | Information & communication | 2022 |
| Dewangan Ltd | Real estate | 2024 |
| DF Cabinetry Ltd | Manufacturing | 2021 |
| DFB Electrics Ltd | Construction | 2021 |
| DFC Haulage Ltd | Transport & logistics | 2025 |
| DG MD Services Ltd | Construction | 2018 |
| DG Music Productions Ltd | Information & communication | 2021 |
| DG22 Ltd | Professional & scientific | 2026 |
| DGD Group Ltd | Construction | 2018 |
| Dgmi Construction Ltd | Construction | 2026 |
| DGS Windows Services Ltd | Construction | 2020 |
| DH Automotive Ltd | Wholesale & retail | 2025 |
| DH Civil Engineering Ltd | Construction | 2020 |
| DHDEALS4U Ltd | Wholesale & retail | 2026 |
| Dhesi Property Developments Limited | Real estate | 2023 |
| Dhesi Property Services Limited | Real estate | 2018 |
| DHP Roofing Ltd | Construction | 2021 |
| Di$Count Store Ltd | Wholesale & retail | 2026 |
| Diamond 24K Cleaners Ltd | Administrative & support | 2026 |
| Diamond Luxury Cleaning Ltd | Administrative & support | 2026 |
| Diana's Deluxe Furniture Ltd | Wholesale & retail | 2020 |
| Diana's Recruitmentcompany Limited | Hospitality | 2022 |
| Diaspora Events Ltd | Arts & recreation | 2022 |
| Dice Paving and Patios Limited | Construction | 2013 |
| Dice Paving Limited | Construction | 2019 |
| Diesel Diag UK Ltd | Wholesale & retail | 2019 |
| Different Planet Travel Limited | Administrative & support | 2010 |
| Diggins & Co Limited | Real estate | 2007 |
| Diggins Property Management Limited | Real estate | 2025 |
| Diggins Property Services Limited | Real estate | 2010 |
| Digiclub Private Limited | Wholesale & retail | 2024 |
| Digidrive Limited | Wholesale & retail | 2025 |
| Digipop Limited | Professional & scientific | 2012 |
| Digital Document Solutions Ltd | Information & communication | 2007 |
| Digital Innovation UK Consulting Services Ltd | Information & communication | 2017 |
| Digital Moon Ltd | Professional & scientific | 2021 |
| Digital Smile Design Limited | Health & social care | 2023 |
| Digital Web Direct Limited | Professional & scientific | 2018 |
| Diia & Co Limited | Wholesale & retail | 2012 |
| Dilawar ALI Ltd | Construction | 2024 |
| Dilek Wearewe Limited | Wholesale & retail | 2025 |
| Dilena Carpentry Limited | Construction | 2020 |
| Dimd Ltd | Construction | 2026 |
| Dimension Engineering Ltd | Professional & scientific | 2018 |
| Dimension Green Energy Limited | Construction | 2021 |
| Dimension Supported Buildings Ltd | Construction | 2023 |
| Dimension Thermal Insulation Ltd | Construction | 2022 |
| Dimi Scaffolding Ltd | Construction | 2024 |
| Dimitroff Construction Solutions Ltd | Construction | 2020 |
| Dims Ltd | Construction | 2023 |
| Dinamic Trans Limited | Transport & logistics | 2016 |
| Dintares Ltd | Wholesale & retail | 2025 |
| Dion Care Services Limited | Health & social care | 2020 |
| Dion Enterprises Ltd | Administrative & support | 2019 |
| Direct Logistics Ltd | Transport & logistics | 2018 |
| Direct Testing Ltd | Professional & scientific | 2026 |
| Direct X Contracts Ltd | Manufacturing | 2020 |
| Direct X Limited | Construction | 2013 |
| Directpac Limited | Transport & logistics | 2017 |
| Dirty Soup Ltd. | Information & communication | 2011 |
| Discus Thermal Insulation Ltd | Administrative & support | 1999 |
| Disp Transport Limited | Transport & logistics | 2017 |
| Dive Devil Ltd | Manufacturing | 2025 |
| Diverse Consultancy Services Ltd | Administrative & support | 2014 |
| Divic Real Estate Ltd | Real estate | 2026 |
| Divine Care Staffing Ltd | Administrative & support | 2014 |
| Divine Creative Ideas Limited | Information & communication | 1999 |
| DJ Blinds (South East) Limited | Construction | 2014 |
| DJ Kares Ltd | Administrative & support | 2024 |
| DJ Property Finance Limited | Financial services | 2024 |
| DJ Showcase Limited | Information & communication | 2025 |
| DJ T Nash Ltd | Arts & recreation | 2024 |
| DJ Willsher Roofing Limited | Construction | 2025 |
| DJA Building Services Ltd | Construction | 2024 |
| DJA Management Ltd | Real estate | 2023 |
| DJA Property Management Ltd | Hospitality | 2020 |
| DJG Wealth Management Ltd | Financial services | 2023 |
| DJL GAS and Electrical Services Ltd | Construction | 2016 |
| DJN Commercial Ltd | Real estate | 2024 |
| DJN International Ltd | Real estate | 2025 |
| DJN Properties Ltd | Real estate | 2018 |
| DJS Studios Ltd | Arts & recreation | 2026 |
| DK Construction Solutions Ltd | Construction | 2023 |
| DK Elite Build & Refurb Ltd | Construction | 2026 |
| Dkdk Interiors Ltd | Construction | 2024 |
| DKM Customs (UK) Limited | Transport & logistics | 2020 |
| DKM Environmental Services Ltd | Water & waste | 2022 |
| DL Consultants (U.K) Limited | Professional & scientific | 2021 |
| DL Contractors Ltd | Construction | 2019 |
| DL Courier Services Ltd | Transport & logistics | 2022 |
| DL Solutions London Limited | Construction | 2018 |
| DLS Possessionem Limited | Administrative & support | 2017 |
| DLS Possessiones Limited | Real estate | 2017 |