| Digi Transformation Solutions Limited | Professional & scientific | 2017 |
| Digi-Me-Bobs Limited | Wholesale & retail | 2017 |
| Digidelivery Ltd | Professional & scientific | 2019 |
| Digiep Limited | Information & communication | 2019 |
| Digify Solutions Limited | Information & communication | 2021 |
| Digisavv Ltd | Professional & scientific | 2020 |
| Digital Architecture Studio Ltd | Administrative & support | 2022 |
| Digital Autopsy Ltd | Other services | 2019 |
| Digital Designer Ltd | Information & communication | 2025 |
| Digital Direct Consulting Ltd | Administrative & support | 2026 |
| Digital Dynasty Ltd | Wholesale & retail | 2026 |
| Digital Engineer Buro Limited | Construction | 2025 |
| Digital Entrepreneurship Development Platform Limited | Information & communication | 2021 |
| Digital Freelancing Limited | Information & communication | 2017 |
| Digital Genie Ltd | Professional & scientific | 2021 |
| Digital Glide Limited | Information & communication | 2019 |
| Digital Health Improvement Limited | Professional & scientific | 2017 |
| Digital Hour Limited | Professional & scientific | 2018 |
| Digital Hybrid Solutions Ltd | Administrative & support | 2019 |
| Digital M&E Designs Ltd | Professional & scientific | 2021 |
| Digital Marketing Matters Ltd | Administrative & support | 2016 |
| Digital Money Media Ltd | Administrative & support | 2017 |
| Digital Risk Advisors Ltd | Professional & scientific | 2019 |
| Digital Step Forward Limited | Administrative & support | 2024 |
| Digital Stores Limited | Wholesale & retail | 2020 |
| Digital Tacho Solutions Ltd | Professional & scientific | 2017 |
| Digital Training Developments Ltd | Information & communication | 2021 |
| Digital Unleashed Limited | Information & communication | 2019 |
| Digital Waterfall Ltd | Administrative & support | 2014 |
| Digitaltruist Ltd | Professional & scientific | 2016 |
| Digitaltwin Ltd | Other services | 2019 |
| Digivue Consulting Limited | Information & communication | 2016 |
| Digiwoods Marketing Limited | Professional & scientific | 2024 |
| Digiworx Limited | Information & communication | 2014 |
| Diiac Ltd | Information & communication | 2026 |
| Dijkstra Paths Limited | Administrative & support | 2013 |
| Diman Limited | Real estate | 2011 |
| Dimple PIX Limited | Professional & scientific | 2014 |
| Dinex Exhausts Limited | Wholesale & retail | 1992 |
| Dino Property Services Limited | Construction | 2022 |
| DIP Telecom Ltd | Information & communication | 2015 |
| Direct Access Taxi's Ltd | Other services | 2011 |
| Direct Auto Supplies Limited | Wholesale & retail | 1997 |
| Direct Business Payments Limited | Administrative & support | 2016 |
| Direct Delivery Force Ltd | Transport & logistics | 2025 |
| Direct Electrical Contracting Ltd | Construction | 2023 |
| Direct Garden Structures Ltd | Construction | 2025 |
| Direct Pizza House Ltd | Hospitality | 2023 |
| Direct Pizza Kebab House Ltd | Hospitality | 2024 |
| Direct Rail Services Limited | Transport & logistics | 1995 |
| Direct Retail Maintenance Ltd | Construction | 2024 |
| Direct Taxis (Warrington) Limited | Transport & logistics | 2016 |
| Direct Taxis Group Limited | Financial services | 2017 |
| Directions for MEN CIC | Health & social care | 2019 |
| Dirse Engineering Ltd | Administrative & support | 2022 |
| Discovery Walking Ltd | Administrative & support | 2016 |
| DISCOVERY22 Ltd | Administrative & support | 2023 |
| Disruptive Technology Services Limited | Information & communication | 2018 |
| Distal Tectonics Ltd | Other services | 2019 |
| Distinct Developments (NW) Limited | Construction | 2019 |
| Distributed Power Holdings Limited | Financial services | 2019 |
| Disyn Biotec Ltd | Professional & scientific | 2021 |
| Diva Costumes Limited | Manufacturing | 2018 |
| Diverse Roots Community C.I.C. | Health & social care | 2026 |
| Divine Eagles Group Limited | Professional & scientific | 2020 |
| Divine Providence Limited | Information & communication | 2022 |
| Divintrading Ltd | Wholesale & retail | 2025 |
| Dixit Tech Ltd | Information & communication | 2025 |
| Dixon Architecture Ltd. | Professional & scientific | 2015 |
| Dixon Plumbing and Heating Ltd | Construction | 2022 |
| Dixonesq Ltd | Professional & scientific | 2017 |
| Dizolio Ltd | Information & communication | 2023 |
| Dizygotic Limited | Professional & scientific | 2013 |
| DJ Baker Engineering Limited | Administrative & support | 2014 |
| DJ Maud Consulting Ltd | Professional & scientific | 2025 |
| DJ Property Holdings Limited | Other services | 2016 |
| DJ Property Investments Ltd | Real estate | 2026 |
| DJ Simmonds Consulting Ltd | Administrative & support | 2026 |
| DJ Yayo Limited | Arts & recreation | 2022 |
| Djabs Limited | Other services | 2025 |
| DJB Engineering Services Limited | Administrative & support | 2016 |
| DJB Wealth Management Ltd | Financial services | 2009 |
| DJC Consultancy Services Limited | Administrative & support | 2024 |
| Djca Safety Consultants Limited | Professional & scientific | 2014 |
| DJK Traffic Management Limited | Professional & scientific | 2017 |
| Djmcnab Software Ltd | Administrative & support | 2024 |
| DJO IT Consultancy Limited | Information & communication | 2017 |
| DJR Couriers Services Limited | Transport & logistics | 2019 |
| DJR Pinnacle Limited | Wholesale & retail | 2015 |
| Djsr Installations Ltd | Construction | 2011 |
| DK Assessments Limited | Health & social care | 2022 |
| DK Landscapes Limited | Administrative & support | 2019 |
| DKC Consultants Limited | Construction | 2010 |
| DKG Electrical Services Limited | Construction | 2023 |
| DKW Contracting Ltd | Professional & scientific | 2011 |
| DL & JT Properties Limited | Real estate | 2019 |
| DL Chippy Ltd | Hospitality | 2026 |
| DL Finn Property Ltd | Real estate | 2023 |
| DL Green CCR Solutions Ltd | Professional & scientific | 2018 |
| DLA Quantity Surveying Ltd | Professional & scientific | 2014 |