| Darcy Transport Limited | Transport & logistics | 2025 |
| Dardam Services Ltd | Wholesale & retail | 2010 |
| Dare 2 Share Limited | Real estate | 2005 |
| Dare Finance Unlimited | Professional & scientific | 2018 |
| Darebrow Ltd | Real estate | 2022 |
| Darek's Ltd | Wholesale & retail | 2024 |
| Daresh Trading Limited | Wholesale & retail | 2018 |
| Darius Pope Limited | Transport & logistics | 2024 |
| Dark ROC Ltd | Administrative & support | 2024 |
| Dark Wings Security Ltd | Administrative & support | 2020 |
| Darkstrata Labs Limited | Information & communication | 2025 |
| Darleys Bolton Ltd | Hospitality | 2016 |
| Darliah Development Fund Limited | Education | 2025 |
| Darlington Estates (North West) Limited | Real estate | 2017 |
| Darlo & Co Property Solutions Ltd | Real estate | 2025 |
| Darren Chamberlain Ltd | Construction | 2003 |
| Darren Marsden Construction Limited | Construction | 2008 |
| Darren Patterson Joiner & Builder Ltd | Construction | 2004 |
| Darroch Estates Limited | Real estate | 2025 |
| Darson Properties Ltd | Real estate | 2021 |
| Darsot Ltd | Health & social care | 2006 |
| Dart Zarrouk Limited | Health & social care | 2015 |
| Darts Corner Holdings Ltd | Financial services | 2020 |
| Darts Corner Ltd | Wholesale & retail | 2007 |
| Darts Exchange Ltd | Wholesale & retail | 2023 |
| Darts Finance Limited | Financial services | 2025 |
| Darts Holdco Limited | Financial services | 2025 |
| Darts Midco Limited | Financial services | 2025 |
| Darwen (H.C.C.) Limited | Health & social care | 1977 |
| Darwen Central Living Limited | Households | 2020 |
| Darwen Healthcare Limited | Wholesale & retail | 2020 |
| Darwen Homes Ltd | Real estate | 2024 |
| Darwen Street 1 Limited | Professional & scientific | 1980 |
| Darwen Street 2 Limited | Professional & scientific | 1977 |
| Darwen Street 3 Limited | Professional & scientific | 1988 |
| Darwen Street 4 Limited | Professional & scientific | 1952 |
| Darwen Street 5 Limited | Professional & scientific | 1983 |
| Darwen Street 6 Limited | Professional & scientific | 1981 |
| Darwen Street 7 Limited | Professional & scientific | 1987 |
| Darwen Street 8 Limited | Professional & scientific | 1982 |
| Darwen Structural Engineering Ltd | Professional & scientific | 2022 |
| Darwen Track Limited | Wholesale & retail | 2020 |
| Darwin ST Limited | Real estate | 2012 |
| Darwish Medical Limited | Health & social care | 2026 |
| Daryans Limited | Hospitality | 2026 |
| Daryl K Ltd | Hospitality | 2022 |
| Darz Driving School Ltd | Education | 2018 |
| DAS Driving School Limited | Education | 2023 |
| DAS Systems NW Limited | Administrative & support | 2011 |
| Das-Automotive (Northwest) Ltd | Wholesale & retail | 2018 |
| Dasch Holdings | Other services | 2017 |
| Dasch Property Group Ltd | Real estate | 2018 |
| Dashcoll Clothing Ltd | Wholesale & retail | 2023 |
| Dashmore Business Park Limited | Real estate | 2026 |
| Dass & Sons Ltd | Construction | 2021 |
| DAT Racing Limited | Arts & recreation | 2016 |
| Data Consultant Specialists Ltd | Information & communication | 2025 |
| Data Steve Limited | Information & communication | 2019 |
| Data Tracker Software Limited | Information & communication | 2012 |
| Databen Ltd | Professional & scientific | 2021 |
| Datamoon Ltd | Information & communication | 2023 |
| Datarsys Limited | Information & communication | 2020 |
| Datasmart Ltd | Information & communication | 2025 |
| Datatechs Consulting Limited | Information & communication | 2025 |
| Datum Floorscreeding Limited | Construction | 2023 |
| Datum Tech Consultancy Limited | Other services | 2018 |
| Daubhill Auto Repairs Ltd | Wholesale & retail | 2016 |
| Davant Cladding & Pointing Specialists Limited | Construction | 2010 |
| Davda Accountants Limited | Professional & scientific | 2017 |
| Davda Properties Limited | Real estate | 2020 |
| Dave Head VFX Limited | Administrative & support | 2021 |
| Dave Mort Limited | Wholesale & retail | 2001 |
| Dave Rogers Services Limited | Transport & logistics | 2018 |
| Dave's News (B-Met) Limited | Wholesale & retail | 2012 |
| Davenport Bolton Ltd | Real estate | 2025 |
| Davenport Energy Assessments Ltd | Professional & scientific | 2025 |
| Davenport Property Holdings Limited | Financial services | 2025 |
| Davenport Property Investments 1 Limited | Real estate | 2025 |
| Davenport Towers Ltd | Professional & scientific | 2007 |
| Daves Aquarium Ltd | Real estate | 2019 |
| Davic Limited | Health & social care | 2019 |
| David Briggs Financial Services Ltd | Administrative & support | 2026 |
| David Cheetham Joinery Limited | Construction | 2015 |
| David Dean Bespoke Kitchens & Interiors Ltd | Manufacturing | 2023 |
| David Evans Services Limited | Transport & logistics | 2017 |
| David Hamer Improvement Limited | Professional & scientific | 2013 |
| David J Saul Ltd | Real estate | 2021 |
| David Jackson Groundwork and Civil Engineering Limited | Construction | 2015 |
| David Morris Finance Limited | Financial services | 2009 |
| David ODE Rigging Limited | Construction | 2012 |
| David Phillips (NW) Limited | Other services | 2008 |
| David Pilling Ltd | Construction | 2025 |
| David Renshaw Artist Limited | Arts & recreation | 2012 |
| David Scholes Ministries Ltd | Other services | 2024 |
| David Smith Building Services Limited | Construction | 2004 |
| David Turnbull Consultancy Limited | Professional & scientific | 2023 |
| David Walters VR & Innovation Limited | Information & communication | 1996 |
| David Whitney Films Limited | Information & communication | 2006 |
| David Wolstenholme Ltd | Professional & scientific | 2016 |
| Davies Build Group Ltd | Construction | 2024 |