| Deeksha’S Residency Ltd | Real estate | 2024 |
| Deely LP | | 2013 |
| Deelynn Limited | Professional & scientific | 2015 |
| Deep Investments L.P. | | 2015 |
| Deep Sea Dickson Ltd. | Construction | 2016 |
| Deep Technology Services L.P. | | 2012 |
| Deep Tuition Ltd | Education | 2020 |
| Deep Ventures (CI) LP | | 2013 |
| Deepa Vikraman Ltd | Extraterritorial | 2011 |
| Deepblucontractors Ltd | Administrative & support | 2025 |
| Deepknowledge.Lifesciences LP | | 2015 |
| Deepmine AI Limited | Information & communication | 2025 |
| Deer Crest LP | | 2004 |
| Deery Investments LP | | 2015 |
| Deeshine Cleaning Services Ltd. | Administrative & support | 2025 |
| Deeside Bookmakers Ltd. | Arts & recreation | 2003 |
| Deestar Health Care Limited | Health & social care | 2026 |
| Deetro Limited | Other services | 2026 |
| Deewanshi Ltd | Hospitality | 2025 |
| Defence Gardens Scheme CIC | Health & social care | 2020 |
| Defensor Trustees (2001) Limited | Professional & scientific | 1983 |
| Defensor Trustees Limited | Professional & scientific | 1970 |
| Defero Group LP | | 2016 |
| Define Global Supply & Services LP | | 2018 |
| Defined Electrical Solutions Ltd | Manufacturing | 2026 |
| Defood 9JA Ltd | Manufacturing | 2025 |
| Deford Property Ltd | Real estate | 2025 |
| Deglove Export LP | | 2013 |
| Degreematch Limited | Information & communication | 1991 |
| Dejk Holdings Limited | Administrative & support | 2024 |
| Dekaro LP | | 2018 |
| Dekaro United LP | | 2015 |
| DEL BOY International Limited | Arts & recreation | 1995 |
| DEL Roble LP | | 2004 |
| Delaara Ltd | Wholesale & retail | 2025 |
| Delaford Chemicals Limited & Co | | 1996 |
| Delair SP | | 2003 |
| Delamar Ltd | Information & communication | 2014 |
| Delano Alliance LP | | 2014 |
| Delaroke Gallery Ltd | Wholesale & retail | 2023 |
| Delasco Services LP | | 2012 |
| Delbourne Associates | | 1992 |
| Delco Worldwide L.P. | | 2009 |
| Deldon United LP | | 2013 |
| Delean Engineering Solutions Limited | Information & communication | 2026 |
| Delersio Commercial LP | | 2013 |
| Delete Today Limited | Hospitality | 2024 |
| Delf Property Ltd | Real estate | 2024 |
| Delfina Imgrond Ltd | Real estate | 2025 |
| Delfino Ltd | Hospitality | 2023 |
| Delfis Company LP | | 2012 |
| Deli Curry Ltd | Hospitality | 2019 |
| Deli DE Sousa Limited | Wholesale & retail | 2025 |
| Delia Corporation LP | | 2017 |
| Delicata Associates Limited | Professional & scientific | 2008 |
| Delice Trade LP | | 2017 |
| Delicious Chinese Ltd | Hospitality | 2021 |
| Delicious Deals Ltd | Wholesale & retail | 2010 |
| Delighters Ltd | Education | 2018 |
| Delile Ltd | Wholesale & retail | 2021 |
| Delimart Limited | Manufacturing | 2017 |
| Delin Property Blue LLP | | 2025 |
| Delin Property Blue LP | | 2025 |
| Delis Trading LP | | 2016 |
| Delium Ltd | Professional & scientific | 2016 |
| Deliveriq Limited | Administrative & support | 2025 |
| Delivery Service Courier Ltd | Wholesale & retail | 2025 |
| Delixo LP | | 2014 |
| Delizia Assets LP | | 2018 |
| Dell's Enterprises Ltd | Administrative & support | 2022 |
| Dellsoft Energy L.P. | | 2012 |
| Dellwood Systems L.P. | | 2011 |
| Dellyne Trading LP | | 2013 |
| Delma Management LP | | 2016 |
| Delmar (Scotland) Limited | Real estate | 1998 |
| Delmar Trade LP | | 2015 |
| Delmarino LP | | 2002 |
| Delmas Trade LP | | 2015 |
| Deloitte Scotland Limited Partnership | | 2010 |
| Delongis Group LP | | 2017 |
| Delorio Impex LP | | 2017 |
| Delos Trade LP | | 2016 |
| Delphi Computer Consultants Limited | Information & communication | 1990 |
| Delstar Commercial L.P. | | 2008 |
| Delstar Investments L.P. | | 2008 |
| Delstar Technology L.P. | | 2008 |
| Delstum Properties Ltd | Wholesale & retail | 2025 |
| Delta (Drinks) Limited | Financial services | 2021 |
| Delta Agency L.P. | | 2012 |
| Delta Azure LP | | 2016 |
| Delta Business Centre L.P. | | 2010 |
| Delta Capital Ventures L.P. | | 2012 |
| Delta Commercial Projects L.P. | | 2010 |
| Delta Corporate Services L.P. | | 2015 |
| Delta Distribution SCO Ltd | Transport & logistics | 2014 |
| Delta Electronics Corporation L.P. | | 2015 |
| Delta Energy & Environment Holdings Limited | Financial services | 2019 |
| Delta Energy & Environment Limited | Professional & scientific | 2003 |
| Delta Factor Consulting Ltd. | Professional & scientific | 2010 |
| Delta Finance L.P. | | 2008 |