| D365 (Apps) Consulting Limited | Information & communication | 2020 |
| Dabber Cat Holdings Limited | Professional & scientific | 2017 |
| Dabber Cat Limited | Hospitality | 2009 |
| Dabber Cat Property Limited | Real estate | 2017 |
| Dabbers Independent Trading Ltd | Wholesale & retail | 2016 |
| Daca Lighting Ltd | Manufacturing | 2016 |
| Daca Properties Limited | Real estate | 2005 |
| Daedon Group Limited | Professional & scientific | 2025 |
| Daedon Property Ltd | Real estate | 2022 |
| Dagfields Home & Kitchens Ltd | Hospitality | 2026 |
| Dagfields Limited | Real estate | 1998 |
| Daimond Guild Limited | Information & communication | 2026 |
| Dairy Farmers of Britain (Bridgend) Limited | Manufacturing | 1947 |
| Dairy Lane Management Company Limited | Households | 2010 |
| Dairy Veterinary Consultancy Ltd | Professional & scientific | 2013 |
| Daisyblossom Children's Wear Limited | Wholesale & retail | 2023 |
| DAK Properties Cheshire Limited | Extraterritorial | 2022 |
| DAM Energy Services Ltd | Professional & scientific | 2022 |
| DAM Property Management Ltd | Real estate | 2025 |
| Dampfix (Cheshire) Ltd | Construction | 2016 |
| Dancebasics Limited | Arts & recreation | 2008 |
| Dapple Grey Press Ltd | Information & communication | 2023 |
| Darcy Financial Planning Limited | Professional & scientific | 2018 |
| Daresbury Court Maintenance Company Limited | Construction | 1998 |
| Data Priva Limited | Professional & scientific | 2018 |
| Datcha Limited | Manufacturing | 2012 |
| Davcla Ltd | Real estate | 2025 |
| Davenport Farming Limited | Wholesale & retail | 2017 |
| Davenport Holdings Ltd | Financial services | 2024 |
| David Bate Limited | Transport & logistics | 2008 |
| David Hermon Hodge Group Limited | Financial services | 2019 |
| David Hermon Hodge Limited | Wholesale & retail | 2011 |
| David Jones Wealth Management Limited | Financial services | 2025 |
| David Young Consulting (U.K.) Limited | Professional & scientific | 2012 |
| Davies Finance Limited | Financial services | 2009 |
| Davryn Management Services Limited | Professional & scientific | 2011 |
| Davval Limited | Agriculture & fishing | 2005 |
| DBG Rail Solutions Limited | Professional & scientific | 2026 |
| DBI Designs Ltd | Professional & scientific | 2025 |
| DEALER360 Limited | Manufacturing | 2017 |
| Decimal Edge Ltd | Information & communication | 2024 |
| DEE Business Services Limited | Professional & scientific | 2010 |
| DEE Trent Locksmith Ltd | Other services | 2023 |
| Define:Ag Limited | Administrative & support | 2020 |
| Delibera Ltd | Professional & scientific | 2026 |
| Deliver Plumb Limited | Wholesale & retail | 2019 |
| Deloco Property Group Limited | Real estate | 2019 |
| Dental Law Chambers Limited | Professional & scientific | 2017 |
| Derma Clinic Nantwich Ltd | Other services | 2018 |
| Design & Cost Construction Ltd | Construction | 2021 |
| Design Embraced Ltd | Information & communication | 2010 |
| Devlin Security Systems Limited | Administrative & support | 2018 |
| DGL Associates Limited | Professional & scientific | 2007 |
| DHM Systems Consulting Ltd | Information & communication | 2010 |
| Diamond Construction (NW) Ltd | Construction | 2023 |
| Diamond Property Investments (NW) Ltd | Construction | 2025 |
| Diamonds of Choice UK Ltd | Wholesale & retail | 2013 |
| Digit Security Limited | Information & communication | 2010 |
| Digitally Dexterous Limited | Information & communication | 2016 |
| Direct Access Consultancy Limited | Professional & scientific | 2004 |
| Divani UK Limited | Real estate | 2003 |
| DJB Pest Control Limited | Administrative & support | 2020 |
| DJU IT Ltd | Information & communication | 2020 |
| Dlsm Property Group Ltd | Real estate | 2024 |
| DMK Leisure Ltd | Professional & scientific | 1997 |
| DO Digital Marketing Limited | Information & communication | 2021 |
| Dodson & Horrell Limited | Manufacturing | 2020 |
| Dolective Ltd | Information & communication | 2023 |
| Dorfold Hall Events Limited | Hospitality | 2017 |
| Dosec Ltd | Professional & scientific | 2025 |
| Double Negative Solutions Limited | Information & communication | 2015 |
| Dough House Pizza Ltd | Hospitality | 2025 |
| Doug’S Deli & Sandwiches Ltd | Hospitality | 2025 |
| Dovecote Technologies Ltd | Professional & scientific | 2021 |
| Doveys Commercial Properties Limited | Real estate | 2019 |
| Doveys Properties Limited | Real estate | 2002 |
| DP Landscapes Ltd | Construction | 2026 |
| DPM Recruitment Solutions Ltd | Administrative & support | 2025 |
| DR AG Holdings Limited | Financial services | 2025 |
| DR Brockley Limited | Health & social care | 2024 |
| DR. Rhona Jayne Whiston Limited | Health & social care | 2002 |
| Dragon-Zero-One Ltd | Professional & scientific | 2013 |
| DRJ Cook Limited | Other services | 2013 |
| DRS Domestic Plumbing and Heating Limited | Construction | 2006 |
| DRS Property Holdings Limited | Real estate | 2020 |
| DTH Logistics Ltd | Information & communication | 2022 |
| DU Pavey Holdings Limited | Financial services | 2018 |
| Dusty Gems Limited | Wholesale & retail | 2015 |
| Dvplant Ltd | Manufacturing | 2025 |
| DVS2020 (Camera Systems) Limited | Manufacturing | 2019 |
| DVS2020 (Vehicle Camera Systems) Limited | Manufacturing | 2019 |
| DWG Contracting Ltd | Agriculture & fishing | 2026 |
| Dyer Farms LLP | | 2025 |
| E Baxter Holdings Limited | Financial services | 2026 |
| E Chantler Investments Limited | Financial services | 2016 |
| E Chantler Share Portfolio Limited | Financial services | 2025 |
| E M Advisory & Consulting Ltd | Professional & scientific | 2026 |
| E Witter Farms Limited | Agriculture & fishing | 2015 |
| Eadl Investments Limited | Real estate | 2026 |
| Eagles Electrics Ltd | Construction | 2024 |