| Dana Mould Limited | Manufacturing | 2022 |
| Dance Art Capoeira CIC | Education | 2026 |
| Dancemonkey Limited | Financial services | 2023 |
| Daneinvest Limited | Real estate | 2025 |
| Daniel Court (Beckenham) Management Limited | Households | 1985 |
| Daniel Miinea Studio Ltd | Professional & scientific | 2026 |
| Daniyal's World Ltd | Wholesale & retail | 2024 |
| Dano Technology Group Ltd | Extraterritorial | 2019 |
| Daofaziran Limited | Financial services | 2021 |
| Daops Foundation | Information & communication | 2019 |
| Dapper Chaps Kent Ltd | Other services | 2022 |
| Dare Beauty Co., Ltd | Professional & scientific | 2019 |
| Daris Holding Group Co., Limited | Extraterritorial | 2016 |
| Darsadowski Ltd | Information & communication | 2023 |
| Darshna Limited | Health & social care | 2014 |
| Darston Hi-Tech (UK) Holding Group Ltd. | Extraterritorial | 2014 |
| Dart Prosper Limited | Wholesale & retail | 2024 |
| Dartek Technology UK Limited | Manufacturing | 2021 |
| Daryl Kibblewhite Limited | Information & communication | 2005 |
| Dasun Cleaning Limited | Administrative & support | 2019 |
| Dataplus Tech Limited | Wholesale & retail | 2023 |
| Dateo Limited | Hospitality | 2026 |
| Dating Apps Online Ltd | Professional & scientific | 2020 |
| Dating ME Limited | Extraterritorial | 2019 |
| Dating OR Hookup Limited | Information & communication | 2025 |
| Datongshanwang Trading Co., Ltd. | Manufacturing | 2020 |
| David Hines Sports Consulting Limited | Arts & recreation | 2024 |
| David Industry and Trade Co., Limited | Extraterritorial | 2020 |
| David Rabi Group Ltd | Financial services | 2018 |
| David Smith Outdoor Spaces Ltd | Construction | 2025 |
| Davies-Lead Limited | Health & social care | 2014 |
| Davington Events Limited | Administrative & support | 2012 |
| Davion Healthcare Finance Ltd | Professional & scientific | 2026 |
| Davion Healthcare Ltd | Manufacturing | 2024 |
| Davis Wire Co., Ltd | Extraterritorial | 2011 |
| Davisen Life Sciences Ltd | Extraterritorial | 2025 |
| Davison's Roofing Ltd | Construction | 2014 |
| Davycarson Limited | Manufacturing | 2023 |
| Dawei Industrial Co., Ltd | Wholesale & retail | 2020 |
| Dawn Community Healthcare Consultancy Limited | Health & social care | 2008 |
| Dayang Shipping Co., Limited | Extraterritorial | 2014 |
| DB Pest Management Ltd | Other services | 2013 |
| DBA Civil Engineering Limited | Professional & scientific | 2020 |
| DBA Masters Limited | Information & communication | 2008 |
| Dbest BAG Manufacturing Co., Ltd | Extraterritorial | 2016 |
| DBI Creations Limited | Construction | 2010 |
| DBP Artistic Services Ltd | Arts & recreation | 2014 |
| DBP Piping Co., Ltd | Manufacturing | 2023 |
| DC Group Co., Ltd. | Manufacturing | 2014 |
| DC Support Services Ltd | Professional & scientific | 2013 |
| Dcon Response Limited | Administrative & support | 2023 |
| Dconntek Holding Limited | Extraterritorial | 2024 |
| DCR FM Services Limited | Administrative & support | 2019 |
| DDA Systems Limited | Information & communication | 2011 |
| DDJ Estates Ltd | Real estate | 2025 |
| Ddong Studio Ltd | Information & communication | 2025 |
| DE DE (Hong Kong) Co., Limited | Wholesale & retail | 2022 |
| DE Miyaga Limited | Extraterritorial | 2019 |
| Dean & Tyler Co., Ltd | Extraterritorial | 2016 |
| Debox Global Ltd | Information & communication | 2022 |
| Debre Limited | Hospitality | 2024 |
| Debre One Limited | Real estate | 2026 |
| Decaff Limited | Extraterritorial | 2015 |
| Decbrothers Limited | Construction | 2015 |
| Decho (London) International Corporation Ltd | Extraterritorial | 2014 |
| Decode Urbanism Office Limited | Extraterritorial | 2010 |
| Decon Response Limited | Administrative & support | 2023 |
| Deenh Industriearmaturen GmbH Limited | Extraterritorial | 2023 |
| Deep Thinking Intelligent Limited | Information & communication | 2025 |
| Deepfaster Steel Manufacture Co., Ltd | Extraterritorial | 2019 |
| Deer Golden Industrial Co., Ltd | Extraterritorial | 2015 |
| Deere Minmetal Group Co., Limited | Manufacturing | 2014 |
| Deersing Limited | Manufacturing | 2025 |
| Defanya Health Limited | Manufacturing | 2019 |
| Define Cleaning Ltd | Administrative & support | 2022 |
| Definity Maintenance Limited | Construction | 2022 |
| Deftickets Ltd | Administrative & support | 2017 |
| Deftmen Ltd | Construction | 2020 |
| Defuyuan Trading Co., Limited | Extraterritorial | 2022 |
| Degusa International Co., Ltd | Extraterritorial | 2019 |
| Dehanne Tech UK Limited | Manufacturing | 2024 |
| Deimos Investment Ltd | Extraterritorial | 2023 |
| DEL Barco Ltd | Wholesale & retail | 2025 |
| Delegated Authority Services Limited | Financial services | 2022 |
| Deleno Group Ltd | Wholesale & retail | 2023 |
| Deles Industrial Limited | Extraterritorial | 2020 |
| Delier Deliquid Technology Limited | Manufacturing | 2024 |
| Delivery & Installation Ltd | Transport & logistics | 2016 |
| Dell House (Beckenham) Residents Limited | Real estate | 2014 |
| Delm Beauty Tools Ltd | Extraterritorial | 2019 |
| Delta Power Electrical Services Limited | Construction | 2008 |
| Delta Progressive Ltd | Real estate | 2021 |
| Delusio Limited | Wholesale & retail | 2024 |
| Deluxe Full Industrial Holding Co., Ltd | Manufacturing | 2024 |
| Delvearc Limited | Professional & scientific | 2024 |
| Demand Pizza Limited | Hospitality | 2025 |
| Demeter Venture UK Limited | Extraterritorial | 2011 |
| Demham Limited | Administrative & support | 2025 |
| Dengshu Trade Ltd | Wholesale & retail | 2024 |
| Deniz Photography Limited | Professional & scientific | 2022 |