| DJP Building Consultants Ltd | Professional & scientific | 2021 |
| DJW Aviation Services Ltd | Manufacturing | 2024 |
| DK Diagnostics Limited | Health & social care | 2022 |
| DLF Trinity Holding Limited | Financial services | 2024 |
| DM Electrical Systems Limited | Manufacturing | 2025 |
| DM Procurement Specialist Limited | Professional & scientific | 2015 |
| DMA Yachting LLP | | 2024 |
| Dmac Investment Limited | Financial services | 2026 |
| DMB Brands Ltd | Manufacturing | 2026 |
| DMB Studios Limited | Administrative & support | 2019 |
| DMS Imaging Limited | Health & social care | 2008 |
| DMS Innovation Services Ltd | Professional & scientific | 2019 |
| DN Property Enterprise Limited | Real estate | 2024 |
| DNS Consulting Ltd | Professional & scientific | 2008 |
| Dobcroft Limited | Real estate | 2016 |
| Docherty Medical (Glasgow) Limited | Health & social care | 2017 |
| Doctor Bowden Limited | Health & social care | 2022 |
| Doctor Fiumara Surgery Limited | Health & social care | 2014 |
| Doctor Ricks Limited | Health & social care | 2012 |
| Dog Paradise Grooming Limited | Other services | 2022 |
| Dolcevita Catering UK Limited | Hospitality | 2025 |
| Dominic Preece Limited | Information & communication | 2010 |
| Domino B Limited | Other services | 2012 |
| Domino Management Company Limited | Households | 1982 |
| Domus Cheshire Ltd | Construction | 2018 |
| Donaldson Data Consulting UK Ltd | Professional & scientific | 2024 |
| Donday Limited | Hospitality | 2008 |
| Donna Hewitt Holding Limited | Financial services | 2022 |
| Donna Hewitt Marketing Ltd | Professional & scientific | 2017 |
| Donnelly Ormerod Medical Services Limited | Health & social care | 2019 |
| Doodle Distribution Limited | Wholesale & retail | 2025 |
| Dorchester Court (Cheadle Hulme) Limited | Real estate | 2009 |
| Dornden Advisory Ltd | Professional & scientific | 2019 |
| Dose Coffee Limited | Information & communication | 2026 |
| Dotnet Coding Ltd | Information & communication | 2015 |
| Dotted Line Studio Ltd | Professional & scientific | 2025 |
| Double DAN Ltd | Wholesale & retail | 2025 |
| Double Garage Films Ltd | Administrative & support | 2021 |
| Douglas Greig Ltd | Health & social care | 2019 |
| Douglas Macmillan Ltd | Health & social care | 2014 |
| Dovetail Freelance Solutions Ltd | Administrative & support | 2020 |
| Downing Gardens Management Company Limited | Households | 2021 |
| Dpbarber Prop Co Ltd | Real estate | 2021 |
| DPD Houses Ltd | Real estate | 2023 |
| DR a Zaghwan Ltd | Health & social care | 2024 |
| DR Adam Hussain Ltd | Health & social care | 2020 |
| DR AJK Ltd | Health & social care | 2026 |
| DR Archana Chalumuru Limited | Health & social care | 2024 |
| DR Barnes Locum Services Limited | Health & social care | 2017 |
| DR Buckley Ltd | Health & social care | 2017 |
| DR Chris Phillips Ltd | Health & social care | 2025 |
| DR Christopher Lang Ltd | Health & social care | 2018 |
| DR Claire Handby Business Leadership Ltd | Professional & scientific | 2023 |
| DR Clarke Aesthetics Ltd | Health & social care | 2012 |
| DR D G Anderson Limited | Health & social care | 2024 |
| DR Daniel Shaw Ltd | Health & social care | 2025 |
| DR Darshan Shukla Limited | Health & social care | 2022 |
| DR Deven Patel Ltd | Health & social care | 2021 |
| DR Emily Forbat Limited | Health & social care | 2024 |
| DR Emma Anders Ltd | Health & social care | 2025 |
| DR Emma Evans Ltd | Health & social care | 2018 |
| DR Fatemah Hussain Ltd | Health & social care | 2022 |
| DR Forest Limited | Manufacturing | 2020 |
| DR Gopinder Lalia Ltd | Health & social care | 2020 |
| DR H. Bors Ltd | Health & social care | 2018 |
| DR Harman Kler Ltd | Health & social care | 2022 |
| DR James Mcdonald Ltd | Health & social care | 2023 |
| DR James Shelley Ltd | Health & social care | 2019 |
| DR K Lankester Anaesthetic Services Ltd | Health & social care | 2021 |
| DR Kian Plastic Surgery Limited | Health & social care | 2020 |
| DR KIM Wilson Coaching Ltd | Other services | 2023 |
| DR Kingsbury Limited | Health & social care | 2018 |
| DR Lizzy Limited | Health & social care | 2020 |
| DR M Al-Aloul Ltd | Health & social care | 2019 |
| DR M Shah Limited | Health & social care | 2019 |
| DR Martin Baggaley Limited | Real estate | 2016 |
| DR Melanie Lockett Limited | Health & social care | 2010 |
| DR Monika Saha Ltd | Health & social care | 2014 |
| DR Nick Greenwood Ltd | Health & social care | 2015 |
| DR Nicole Formulations Limited | Health & social care | 2025 |
| DR Oliver Segal Ltd | Health & social care | 2018 |
| DR P Hughes Limited | Health & social care | 2025 |
| DR Paul Hayden Limited | Health & social care | 2011 |
| DR Pritesh Mistry Limited | Health & social care | 2024 |
| DR R Barraclough Ltd | Health & social care | 2021 |
| DR S G Plunkett Limited | Health & social care | 2019 |
| DR S.M Izadi Limited | Health & social care | 2023 |
| DR SA Medical Consultancy Limited | Health & social care | 2020 |
| DR Stephen Ward Limited | Health & social care | 2020 |
| DR T C Smith Limited | Health & social care | 2019 |
| DR Tina Tian Limited | Health & social care | 2024 |
| DR Tint & Co Limited | Real estate | 2009 |
| DR Tiva Limited | Health & social care | 2022 |
| DR TOM Ltd | Health & social care | 2020 |
| DR Virginia Calvo Paniza Limited | Health & social care | 2024 |
| DR Y Singh Limited | Health & social care | 2020 |
| DR. Zakir Shariff Limited | Health & social care | 2017 |
| Dragon Practice Consultancy Ltd | Professional & scientific | 2019 |
| Dream Operator Limited | Professional & scientific | 2011 |
| Drew Roberts PT Ltd | Arts & recreation | 2019 |