| Diamond Pubs Ltd | Hospitality | 2005 |
| Diamondrive Limited | Transport & logistics | 2020 |
| Diamonds Realty Limited | Real estate | 2017 |
| Diamore Holdings Limited | Financial services | 2026 |
| Diamore Limited | Administrative & support | 2026 |
| Dibolt Ltd | Wholesale & retail | 2024 |
| Digimas Studio Ltd | Information & communication | 2014 |
| Digimedia Consultants Limited | Wholesale & retail | 2018 |
| Digisync Solutions Ltd | Wholesale & retail | 2025 |
| Digital Culture One Ltd | Information & communication | 2018 |
| Digital IT Services Ltd | Information & communication | 2025 |
| Digital Parenting CIC | Information & communication | 2024 |
| Digital Publishing Ltd | Professional & scientific | 2011 |
| Digital Support Services Limited | Information & communication | 2022 |
| Digital.Camz Ltd | Wholesale & retail | 2009 |
| Digitronai Ltd | Information & communication | 2025 |
| Dignity Learning Centre Ltd | Real estate | 2012 |
| Dignityplus Care Services Limited | Extraterritorial | 2017 |
| Digtal Avies Limited | Construction | 2024 |
| Dilawar Builders Limited | Construction | 2025 |
| Dimension Print Ltd | Manufacturing | 2021 |
| Dimex Sports Ltd | Wholesale & retail | 2013 |
| Dimitrov Investment Ltd | Wholesale & retail | 2023 |
| Dimtach Ltd | Construction | 2019 |
| Dimy Limited | Construction | 2021 |
| DIN Accessories Limited | Wholesale & retail | 2022 |
| Dine Shine Limited | Administrative & support | 2018 |
| Ding Dang Digital Ltd | Professional & scientific | 2021 |
| Ding Glory Ltd | Hospitality | 2023 |
| Dingdang Mall Ltd | Wholesale & retail | 2022 |
| Dino Trad Ltd | Construction | 2025 |
| Dinsoft Technology PVT Ltd | Information & communication | 2018 |
| Dioro Beauty Studio Ltd | Other services | 2019 |
| Dipconsult Limited | Construction | 2020 |
| DIR Company Store Ltd | Wholesale & retail | 2024 |
| Direct Defence Solutions Limited | Administrative & support | 2018 |
| Direct Recovery and Maintenance Ltd | Wholesale & retail | 2019 |
| Direct Supply Group Holdings Ltd | Financial services | 2026 |
| Direct Trans Ltd | Transport & logistics | 2015 |
| Dis-N-Dat Stores Ltd | Wholesale & retail | 2014 |
| Discount on Drinks Ltd | Extraterritorial | 2013 |
| Dishatech Solutions Limited | Extraterritorial | 2025 |
| District and Domestic Energy Limited | Construction | 2017 |
| Diti Construction Ltd | Construction | 2025 |
| Dive Within Journal Limited | Information & communication | 2025 |
| Divine Touch Nails by Elena Ltd | Other services | 2025 |
| Divinedes Ltd | Public administration | 2018 |
| Divinetrader Ltd | Wholesale & retail | 2023 |
| Divri Ltd | Administrative & support | 2012 |
| Dixonns Home Improvements and Damp Specialists Ltd | Construction | 2026 |
| Dixy Chicken Ilford Ltd | Hospitality | 2019 |
| Diyan & Zayan Ltd | Wholesale & retail | 2025 |
| Djinanga Care Ltd | Health & social care | 2025 |
| DKK Electrical Services Limited | Construction | 2026 |
| DKS Construction Limited | Construction | 2022 |
| DLM People Ltd | Construction | 2025 |
| DLS Lofts Ltd | Construction | 2019 |
| DM Consulting Specialists Ltd | Professional & scientific | 2026 |
| DM Creations Ltd | Wholesale & retail | 2026 |
| DM Dzigns Limited | Information & communication | 2019 |
| DM Global Education Ltd | Education | 2025 |
| DM7 Global Ltd | Wholesale & retail | 2025 |
| Dmbeverages Ltd | Hospitality | 2025 |
| Dmitriy Plumbing Limited | Construction | 2015 |
| DMP20 Ltd | Construction | 2020 |
| Dmsprism Smart Staffing Solution Limited | Information & communication | 2023 |
| Dmvlas Ltd | Construction | 2019 |
| DNA Customs Ltd | Wholesale & retail | 2021 |
| DNM Construction Ltd | Construction | 2023 |
| Dock 9 Ltd | Wholesale & retail | 2020 |
| Docklands Trading Company Limited | Wholesale & retail | 1998 |
| Docklands Wharf Limited | Transport & logistics | 1997 |
| Dodi Homes Ltd | Real estate | 2026 |
| Dodi Motors Ltd | Wholesale & retail | 2020 |
| Dogak Limited | Construction | 2012 |
| Doina & Bogdan Ltd | Construction | 2015 |
| DOL Holdings Ltd | Wholesale & retail | 2014 |
| Dolphin and Shark Services Ltd | Administrative & support | 2017 |
| Domatocutbarber Ltd | Other services | 2022 |
| Domicile Rapid Cleaning Ltd | Administrative & support | 2025 |
| Dominion City Canary Wharf Ltd | Education | 2026 |
| Dominion Heart Living Ltd | Health & social care | 2026 |
| Dominus Design Ltd | Wholesale & retail | 2025 |
| Dominus Health Ltd | Health & social care | 2026 |
| Dominus Holding Group Ltd | Financial services | 2025 |
| Dominus Maintenance Ltd | Construction | 2026 |
| Dominusbuild Ltd | Construction | 2024 |
| DON Cezar Design & Craft Ltd | Manufacturing | 2020 |
| DON NED Cladding Facade Ltd | Other services | 2018 |
| DON NED Limited | Construction | 2019 |
| Don&Gab Limited | Administrative & support | 2019 |
| Donalcen Limited | Construction | 2026 |
| Dordecasa CIC | Health & social care | 2026 |
| Dorin Construction Ltd | Construction | 2020 |
| Dorwaila Group of Companies Limited | Agriculture & fishing | 2020 |
| Dose of Education Ltd | Wholesale & retail | 2025 |
| Dot.Nike Limited | Health & social care | 2022 |
| Double Power Limited | Wholesale & retail | 2013 |
| Double S.D Limited | Wholesale & retail | 2020 |
| Dovi Ltd | Hospitality | 2025 |