| Danex International L.P. | | 2009 |
| Danex Sales L.P. | | 2013 |
| Danford Company Holdings LP | | 2020 |
| Danford Company LP | | 2016 |
| Danfoss Scotland Limited | Manufacturing | 2018 |
| Danger Close Training Ltd | Public administration | 2025 |
| Dangerous Studio Limited | Information & communication | 2015 |
| Dangle Rope Access Ltd | Professional & scientific | 2021 |
| Dania EDN Ltd | Hospitality | 2023 |
| Daniel & SAM Ltd | Wholesale & retail | 2025 |
| Daniel CUT Ltd | Administrative & support | 2024 |
| Daniel Ewen Finance Limited | Administrative & support | 2022 |
| Daniel Investments LP | | 2013 |
| Daniel Juma-Phiri's Boxing Academy Ltd. | Arts & recreation | 2019 |
| Daniel M North Ltd | Information & communication | 2025 |
| Daniel Martinez Flamenco Company Ltd | Arts & recreation | 2022 |
| Daniel Mccloy Property Limited | Real estate | 2017 |
| Daniel Security Solutions Limited | Administrative & support | 2018 |
| Daniel T Brown Ltd | Administrative & support | 2022 |
| Danielle Carr Limited | Other services | 2014 |
| Danistel Ltd | Wholesale & retail | 2024 |
| Daniyal Ahmad Limited | Information & communication | 2024 |
| Danley Impex L.P. | | 2014 |
| Danmac Corporation L.P. | | 2012 |
| Dannford Trading LP | | 2014 |
| Danny Allen Media Ltd | Information & communication | 2022 |
| Danny Appolinari Personal Training & Nutrition Limited | Education | 2024 |
| Danny Morrison Ltd. | Health & social care | 2009 |
| Danny's Grill & Cafe Ltd | Hospitality | 2025 |
| Danpark Logistics LP | | 2012 |
| Dansel Ltd | Real estate | 2020 |
| Danske Arrangements LP | | 2014 |
| Danske Helgoland LP | | 2013 |
| Danske Intergroup LP | | 2013 |
| Danske Mega LP | | 2014 |
| Danske Plus LP | | 2016 |
| Danske Trans LP | | 2017 |
| Dant Holding LP | | 2017 |
| Dantar Services LP | | 2015 |
| Dantari Corporation L.P. | | 2012 |
| Dantastic Ltd. | Professional & scientific | 2000 |
| Dante Phoenix Solutions Ltd | Wholesale & retail | 2025 |
| Dantella Enterprises L.P. | | 2009 |
| Dantella International L.P. | | 2009 |
| Dantika Care Ltd | Health & social care | 2022 |
| Danton Group LP | | 2016 |
| Danu Insights Limited | Professional & scientific | 2023 |
| Danu Investments Limited | Professional & scientific | 2019 |
| Danube Control Service LP | | 2020 |
| Danube ST Limited | Other services | 2024 |
| Danubia Enterprises Ltd | Administrative & support | 2010 |
| Danvill Trading LP | | 2015 |
| Danwick Trade LP | | 2014 |
| Danwort Export LP | | 2014 |
| Danya Trade LP | | 2014 |
| DAO AM LP | | 2013 |
| DAO Family Office LP | | 2013 |
| DAO Fixed Income LP | | 2015 |
| DAO GP LP | | 2015 |
| DAO Industry LP | | 2013 |
| DAO Long Fixed Income LP | | 2015 |
| DAO Real Estate LP | | 2013 |
| DAP Projekt Ltd | Construction | 2021 |
| Dapper Enterprise Ltd | Other services | 2025 |
| Dapper Prizes Ltd | Information & communication | 2026 |
| DAR Advisory Limited | Professional & scientific | 2023 |
| DAR Inspections Ltd | Professional & scientific | 2025 |
| DAR Rope Access Limited | Mining & quarrying | 2014 |
| Daralis Group LP | | 2016 |
| Darcelona LP | | 2013 |
| Darchem Engineering Limited | Manufacturing | 1993 |
| Darcie Digital Co. Ltd | Professional & scientific | 2024 |
| Darconta L.P. | | 2013 |
| Darcsystems Monitoring Limited | Construction | 2025 |
| Darcy Consulting (Edinburgh) Limited | Education | 2024 |
| Darden Universal LP | | 2014 |
| Darenton Business LP | | 2015 |
| Dareus LP | | 2017 |
| Darin Takeaway Ltd | Wholesale & retail | 2025 |
| Daring Technology L.P. | | 2012 |
| Dario Alliance LP | | 2014 |
| Dario Investments LP | | 2014 |
| Dario Trading LP | | 2014 |
| Dark Art GIN Limited | Manufacturing | 2017 |
| Dark Cloud (Holdings) Limited | Financial services | 2006 |
| Dark Entity Limited | Financial services | 2025 |
| Dark Room Brand Limited | Wholesale & retail | 2021 |
| Dark Sky Media Limited | Information & communication | 2023 |
| Dark Stream Ltd | Information & communication | 2012 |
| Darkforge Defence Ltd | Information & communication | 2024 |
| Darklighter Limited | Hospitality | 2018 |
| Darko Management & Consultancy Ltd | Wholesale & retail | 2018 |
| Darkpool Data Global Ltd | Information & communication | 2025 |
| Darkstims Limited | Wholesale & retail | 2021 |
| Darlen Group LP | | 2016 |
| Darling Decor Limited | Construction | 2021 |
| Darlingforsyth Limited | Information & communication | 2010 |
| Darlington Capital LP | | 2014 |
| Darlington Ross & Co | | 1992 |
| Darlow Investments L.P. | | 2009 |