| Daniel Charles Construction Limited | Construction | 2005 |
| Daniel Charles Group EOT Trustees Limited | Financial services | 2025 |
| Daniel Charles Group Limited | Administrative & support | 2012 |
| Daniel Charles Plant Limited | Financial services | 2017 |
| Daniel Charles Surveys Limited | Construction | 2007 |
| Daniel Coachafer Ltd | Real estate | 2017 |
| Daniel Priest Ltd | Professional & scientific | 2024 |
| Danigodja Limited | Health & social care | 2015 |
| Danker Property Limited | Real estate | 2024 |
| Danursu Care Ltd | Health & social care | 2016 |
| Darabeto Holdings Limited | Professional & scientific | 2010 |
| Dark Horse Investment Consulting Ltd | Extraterritorial | 2022 |
| Dark Inventions Limited | Arts & recreation | 2016 |
| Darkside Rising C.I.C. | Arts & recreation | 2020 |
| Darkside Training LLP | | 2020 |
| Darrant Developments (Lincoln) Limited | Construction | 2015 |
| Darren Beckett Ltd | Real estate | 2021 |
| Darren Ltd | Wholesale & retail | 2026 |
| Darren Rogan Chef Solutions Ltd | Hospitality | 2016 |
| Darren Walker Brickwork Limited | Construction | 2016 |
| Dart Energy (East England) Limited | Mining & quarrying | 2008 |
| Dart Energy (West England) Limited | Mining & quarrying | 2008 |
| Darwood Consulting Limited | Administrative & support | 2024 |
| DAS Haus Limited | Extraterritorial | 2014 |
| DAS Lite Ltd | Extraterritorial | 2023 |
| DAS World Ltd | Extraterritorial | 2023 |
| Dashboard Information Services Limited | Information & communication | 2002 |
| Data Matters Consulting Ltd | Information & communication | 2022 |
| Data Protection Academy Ltd | Education | 2021 |
| Dataease Limited | Manufacturing | 2016 |
| Datoo Developments Ltd | Construction | 2021 |
| Datum Install Limited | Construction | 2014 |
| Daubney (Holdings) Limited | Professional & scientific | 2015 |
| Daubney Electrical Limited | Extraterritorial | 2016 |
| Daubney Limited | Construction | 1990 |
| Dave Clark Vehicle Services Limited | Wholesale & retail | 2005 |
| Dave Cusdin Consulting Limited | Professional & scientific | 2026 |
| Dave Hardwick Spares Limited | Manufacturing | 2014 |
| Dave LEE Transport Ltd | Transport & logistics | 2023 |
| Daves Gaming and Tabletop Games Limited | Other services | 2014 |
| David Buck Consulting Limited | Professional & scientific | 2013 |
| David Burling Ltd | Health & social care | 2010 |
| David Cotten Ltd | Professional & scientific | 2011 |
| David Gartry EYE Surgery Ltd | Health & social care | 2010 |
| David Haigh.Limited | Real estate | 1923 |
| David Hellier Consultancy Limited | Professional & scientific | 2012 |
| David Howie Properties Ltd | Real estate | 2022 |
| David Keen Associates Ltd | Professional & scientific | 2005 |
| David Lowerson Photography Limited | Professional & scientific | 2012 |
| David Lyman Ltd. | Transport & logistics | 2014 |
| David Manning Tours Ltd | Administrative & support | 2024 |
| David Mott Limited | Professional & scientific | 2001 |
| David Properties Ltd | Real estate | 2023 |
| David Rhoden Ltd | Transport & logistics | 2013 |
| David Woolf Oncology Ltd | Health & social care | 2017 |
| Davies Contracting & Repairs Ltd | Manufacturing | 2024 |
| Davies Radiology Services Ltd | Health & social care | 2011 |
| Daviko Ltd | Transport & logistics | 2025 |
| Davmar Engineering Ltd | Manufacturing | 2014 |
| Dawsy Haulage Ltd | Transport & logistics | 2023 |
| Day & Night Care Angels Ltd | Health & social care | 2025 |
| Day 28 Ltd | Wholesale & retail | 2025 |
| Daykin & Co. Plumbing and Heating Ltd | Construction | 2024 |
| Days on the Dirt Limited | Arts & recreation | 2022 |
| Daytom Group Ltd | Wholesale & retail | 2020 |
| Dazart Ltd | Wholesale & retail | 2022 |
| Dazp Services Limited | Transport & logistics | 2020 |
| Dazzling Designs Limited | Manufacturing | 2018 |
| DB & TP Properties Limited | Real estate | 2023 |
| DB Asset Management Limited | Administrative & support | 2015 |
| DB Building Solutions Limited | Construction | 2016 |
| DB Courier Services Ltd | Transport & logistics | 2002 |
| DB Partitions Limited | Construction | 2015 |
| DB Structure Ltd | Professional & scientific | 2023 |
| DB Swistak Ltd | Transport & logistics | 2015 |
| DBB Services Ltd | Transport & logistics | 2025 |
| DBM Paving Ltd | Construction | 2023 |
| DBS EOT Limited | Administrative & support | 2017 |
| DC East Bidco Limited | Real estate | 2026 |
| DC Holdings (Lincoln) Limited | Financial services | 2017 |
| DC Marine & Power Services Limited | Manufacturing | 2020 |
| DCC Boiler Plant Ltd | Financial services | 2017 |
| DCF Lettings Ltd | Real estate | 2023 |
| DCJ Construction Ltd | Construction | 2023 |
| DCN Construction Limited | Administrative & support | 2026 |
| DCN2025 Ltd | Wholesale & retail | 2025 |
| Dctrb Ltd | Wholesale & retail | 2023 |
| DDF Contracting Ltd. | Construction | 2019 |
| DE LA RUE Travel Ltd | Administrative & support | 2024 |
| Deacon Electrical Solutions Ltd | Construction | 2024 |
| Deals U Buy Ltd | Wholesale & retail | 2024 |
| Dean Farming Limited | Agriculture & fishing | 1993 |
| Dean Trustees Limited | Professional & scientific | 2025 |
| Deano's Pro Soccer Scholarship & Education Limited | Education | 2017 |
| Deans Sport, Health and Leisure Management Company Limited | Arts & recreation | 2010 |
| Deborah Hart Limited | Extraterritorial | 2025 |
| Deburson Limited | Professional & scientific | 2025 |
| DEC Financial Services Ltd | Financial services | 2012 |
| Decad Ltd. | Administrative & support | 2012 |
| Decarbonisation Solutions Ltd | Energy | 2024 |