| Discovery Park Technology Investments (GP) Limited | Financial services | 2015 |
| Discovery Park Technology Investments (SLP) Limited | Financial services | 2015 |
| Discovery Park Technology Investments LP | | 2015 |
| Distinction Wall & Floor Tiling Ltd | Construction | 2014 |
| Ditronix Ltd | Information & communication | 2019 |
| Diva Enterprises Ltd | Administrative & support | 2016 |
| Diva Recruitment Services Ltd | Administrative & support | 2021 |
| Diversified Agencies Communications Limited | Professional & scientific | 1986 |
| Diversitrain Ltd | Education | 2006 |
| Divin Care Limited | Health & social care | 2025 |
| Divine & Co Estates Ltd | Real estate | 2023 |
| Divine Decors Ltd | Other services | 2025 |
| Divine Enterprises Global Limited | Professional & scientific | 2019 |
| Divine Grace Care Limited | Health & social care | 2024 |
| Divine Sushi Ltd | Hospitality | 2024 |
| Divine’S Collection Ltd | Wholesale & retail | 2026 |
| Division Media Limited | Administrative & support | 2006 |
| Dixon Close Residents Association Limited | Households | 1995 |
| Dixon Lifts Ltd | Manufacturing | 2024 |
| DJ Commercials (South East) Limited | Manufacturing | 2022 |
| DJ Gregory Plant Services Ltd | Administrative & support | 2015 |
| DJ Hubble Services Limited | Administrative & support | 2011 |
| DJB Worktops Ltd | Manufacturing | 2023 |
| Djdj Ventures Limited | Real estate | 2007 |
| DJG Management Services Limited | Financial services | 2001 |
| DJG Solutions Ltd | Information & communication | 2011 |
| DJI-87 Ltd | Transport & logistics | 2017 |
| DJO Mechanical Services Ltd | Construction | 2022 |
| DJS POP Collectibles Ltd | Wholesale & retail | 2025 |
| DJY Construction Ltd | Construction | 2021 |
| DK Painting Ltd | Construction | 2019 |
| DKA Homes & Consulting Ltd | Real estate | 2025 |
| DKM "Monika" Ltd | Wholesale & retail | 2017 |
| DL Consult Limited | Professional & scientific | 2014 |
| DLB Financial Services Limited | Professional & scientific | 2018 |
| DLC Resources Ltd | Professional & scientific | 2022 |
| Dldd Ltd | Transport & logistics | 2018 |
| DLK Holdings Ltd | Financial services | 2020 |
| Dlka Properties Limited | Real estate | 2025 |
| DLR Appliance Services Limited | Other services | 2007 |
| DLS Prospects Limited | Real estate | 2024 |
| DLW Windows Limited | Administrative & support | 2019 |
| DLZ Projects Ltd | Construction | 2025 |
| DM Witko Ltd | Transport & logistics | 2025 |
| Dmaw Property Limited | Financial services | 2026 |
| DMC Group Contractors Limited | Construction | 2013 |
| DMC90 Ltd | Transport & logistics | 2017 |
| DMD Dentistry Limited | Health & social care | 2023 |
| DMD Express Ltd | Transport & logistics | 2018 |
| Dmd-Montana Ltd | Construction | 2024 |
| DMG Improvements Ltd | Construction | 2025 |
| DMH Plumbing and Heating Services Ltd | Construction | 2025 |
| DMN Deliveries Ltd | Wholesale & retail | 2025 |
| DMP Couriers Ltd | Transport & logistics | 2015 |
| Dmpg Holdings Ltd | Financial services | 2020 |
| Dmpg Ltd | Information & communication | 2013 |
| Dmqv Ltd | Professional & scientific | 2020 |
| DMS Graphics Ltd | Professional & scientific | 2020 |
| DNA Apex Limited | Wholesale & retail | 2021 |
| DNA Management Consulting Limited | Professional & scientific | 2025 |
| DND NAS Ltd | Transport & logistics | 2014 |
| DND Refurbishment Ltd | Construction | 2019 |
| DNE Delivery Ltd | Transport & logistics | 2017 |
| DO IT Wright Windscreens S.E. Ltd | Wholesale & retail | 2009 |
| Doddle Limited | Information & communication | 2010 |
| Dodged a Bullet Ltd. | Information & communication | 2011 |
| Dodo BG Ltd | Transport & logistics | 2022 |
| DOE Investment Ltd | Financial services | 2021 |
| Dog Behavioural Services Ltd | Other services | 2023 |
| Dog House Records Ltd | Hospitality | 2025 |
| Doggy Dinners Ltd | Wholesale & retail | 2023 |
| Doing Business GOD Way Limited | Administrative & support | 2025 |
| Dollary Parade Properties Limited | Construction | 2025 |
| Dols Wong Architects Ltd | Professional & scientific | 2015 |
| Doltan House (Freehold) Limited | Households | 2023 |
| Domovina Ltd | Wholesale & retail | 2020 |
| Domum Solutions Ltd | Construction | 2019 |
| Domus Forma Ltd | Construction | 2022 |
| Domy Spedition Ltd | Transport & logistics | 2025 |
| Dona Construction Ltd | Construction | 2019 |
| Donbros Developments Limited | Real estate | 2014 |
| Donbros Rentals Limited | Real estate | 2015 |
| Doniro Plus Ltd | Wholesale & retail | 2020 |
| Donocomm Ltd | Financial services | 2019 |
| Donohue Enterprise Ltd | Hospitality | 2015 |
| Donoprop Ltd | Financial services | 2019 |
| Donvex Property Ltd | Real estate | 2025 |
| Doorman Security Services Ltd | Administrative & support | 2016 |
| Doorstep Firewood Ltd | Wholesale & retail | 2022 |
| Doramu Ltd | Professional & scientific | 2025 |
| Dorion World Ltd | Wholesale & retail | 2025 |
| Dosza Group Ltd. | Wholesale & retail | 2022 |
| DOT Big Syndicate Ltd | Wholesale & retail | 2025 |
| Dotrem Limited | Information & communication | 2017 |
| Dots Services Ltd | Wholesale & retail | 2022 |
| Double Two Financial Planning Limited | Financial services | 2022 |
| Double Two Properties Ltd | Real estate | 2025 |
| Double Wings Limited | Hospitality | 2022 |
| Doug Izzard Transport Limited | Construction | 2018 |
| Douglas Birt Consulting Limited | Professional & scientific | 2012 |