| Damzad Consulting Services Ltd | Professional & scientific | 2016 |
| DAN Nails 80 Ltd | Other services | 2023 |
| DAN Scaffold Services Ltd | Construction | 2026 |
| Danasuperclean Limited | Other services | 2025 |
| Danborsa Ltd | Transport & logistics | 2020 |
| Dancestell Limited | Health & social care | 2021 |
| Dane Services Limited | Transport & logistics | 2018 |
| Danflor Limited | Construction | 2024 |
| Dangs Detailing Limited | Administrative & support | 2023 |
| Dani Team Ltd | Construction | 2025 |
| Daniel Charles Ltd | Construction | 2020 |
| Daniel Chery Consultancy Ltd | Health & social care | 2019 |
| Daniel Nitigoi Ltd | Hospitality | 2026 |
| Daniel&Amy Ltd | Hospitality | 2019 |
| Danielrad Ltd | Transport & logistics | 2020 |
| Danilevici Ltd | Construction | 2022 |
| Danish Hub Ltd | Wholesale & retail | 2026 |
| Danmate Construction Ltd | Professional & scientific | 2023 |
| Danmole Estates Ltd | Real estate | 2024 |
| Dannyblanita Ltd | Construction | 2022 |
| Danro Limited | Transport & logistics | 2018 |
| Danshad Investment Ltd | Health & social care | 2022 |
| Dantwise Limited | Administrative & support | 2022 |
| Danya Optix Ltd | Wholesale & retail | 2023 |
| Danyal & David Ltd | Real estate | 2014 |
| Danykash Ltd | Other services | 2023 |
| Danyo Electronics UK Limited | Wholesale & retail | 2019 |
| Daphe Ltd | Construction | 2024 |
| Dapphl Ltd | Health & social care | 2025 |
| Dapsfitness Limited | Arts & recreation | 2021 |
| Daratom Ltd | Construction | 2019 |
| Darband Ranya Ltd | Wholesale & retail | 2025 |
| Darc Limited | Wholesale & retail | 2013 |
| Dare Ideas Digital Limited | Information & communication | 2024 |
| Dargab Solutions UK Ltd | Professional & scientific | 2026 |
| Daria Trbnv Ltd | Wholesale & retail | 2024 |
| Darius Art Performance Exhaust Ltd | Wholesale & retail | 2024 |
| Dariusbuilderhgv Ltd | Construction | 2024 |
| Darlex Ltd | Construction | 2017 |
| Darling Electronics Ltd | Extraterritorial | 2023 |
| Darman Yousafzai Ltd | Wholesale & retail | 2023 |
| Darmar Construct Ltd | Construction | 2019 |
| Daroda Ltd | Transport & logistics | 2019 |
| Darryl Minta and Associates Ltd | Professional & scientific | 2020 |
| Dartay Medics Ltd | Health & social care | 2014 |
| Darwin Youth Community Interest Company | Public administration | 2021 |
| Dashurs Properties Ltd | Real estate | 2025 |
| Daslin Trade Limited | Wholesale & retail | 2022 |
| Dasya Transport Limited | Transport & logistics | 2019 |
| Data Directory Solutions Limited | Wholesale & retail | 2026 |
| Data Pioneers Ltd | Information & communication | 2015 |
| Datalist Ltd | Administrative & support | 2020 |
| Datoy Ltd | Construction | 2012 |
| Datt Properties Investment Ltd | Real estate | 2020 |
| Datu-Angeles Co Limited | Health & social care | 2025 |
| Daughter of Zion Limited | Health & social care | 2018 |
| Dauti Brothers Ltd | Hospitality | 2019 |
| Dave Cargo UK and Logistics Limited | Transport & logistics | 2022 |
| Davegood Consulting Ltd | Health & social care | 2019 |
| David & Juwon Ltd | Extraterritorial | 2020 |
| David & Ryan Trans Ltd | Transport & logistics | 2015 |
| David Cleanex Services Limited | Administrative & support | 2024 |
| Davina K Ltd | Construction | 2023 |
| Davincih Limited | Information & communication | 2025 |
| Davns Limited | Real estate | 2024 |
| Davo Services Limited | Hospitality | 2016 |
| Davore Limited | Real estate | 2014 |
| Davy Construction and Consultancy Limited | Construction | 2026 |
| Dawn to Dusk Facility Management Ltd | Administrative & support | 2025 |
| Dawson Carpentry Limited | Construction | 2002 |
| Dazhcut Ltd | Other services | 2023 |
| Dazzlin Pridale ECE Limited | Education | 2025 |
| Dbbias Ltd | Other services | 2014 |
| DBD Homes Ltd | Real estate | 2022 |
| DBL Fish and Chips Limited | Hospitality | 2022 |
| DCD Building Construction Ltd | Construction | 2019 |
| Dcpm Contracts Ltd | Construction | 2010 |
| DD & G Ltd | Health & social care | 2023 |
| Ddaaw General Building Ltd | Construction | 2024 |
| DDG Holdings Ltd | Real estate | 2020 |
| DDG Limited | Construction | 1986 |
| DDG Windows Ltd | Construction | 2006 |
| DDH Groundwork Limited | Construction | 2021 |
| DDI Estates Ltd | Real estate | 2026 |
| DDP Builders Ltd | Construction | 2018 |
| DE Achievers Ltd | Education | 2016 |
| DE BOJ Care Services Ltd | Administrative & support | 2026 |
| DE Freshy Enterprises Limited | Wholesale & retail | 2024 |
| DE Harmony Care Limited | Health & social care | 2025 |
| DE Serenity Living Ltd | Health & social care | 2025 |
| De-Max Limited | Construction | 2010 |
| Deamvision Builders Ltd | Construction | 2025 |
| Dean's Peri Ltd | Hospitality | 2026 |
| Deanols Flower Ltd | Wholesale & retail | 2022 |
| Deansons Ltd | Wholesale & retail | 2023 |
| DEB J Limited | Health & social care | 2014 |
| Deborah 33 Ltd | Administrative & support | 2026 |
| Decent Abodes Ltd | Real estate | 2022 |
| Decent Construction Limited | Construction | 2019 |
| Decisions Healthcare Ltd | Health & social care | 2021 |