| Danai Data UK Ltd | Professional & scientific | 2020 |
| Danflow Ltd | Transport & logistics | 2025 |
| Danfork Ltd | Transport & logistics | 2020 |
| Dani's Autohaus Ltd | Wholesale & retail | 2019 |
| Dans Catering at Ltd | Hospitality | 2025 |
| Dante&A Limited | Health & social care | 2026 |
| DAO Entertainment (UK) Limited | Arts & recreation | 2015 |
| Dapa Atelier Limited | Professional & scientific | 2014 |
| Dapa Partners Alliance Limited | Professional & scientific | 2025 |
| Darek Tomczak Ltd | Transport & logistics | 2019 |
| Daren Ltd | Transport & logistics | 2021 |
| Dark Berry Enterprise Group Ltd | Financial services | 2023 |
| Dark Berry Properties Ltd | Real estate | 2020 |
| Dashdrop Limited | Transport & logistics | 2025 |
| Dashrent Limited | Real estate | 1999 |
| David Sargent Tools Limited | Wholesale & retail | 2012 |
| Davidson M Limited | Wholesale & retail | 2022 |
| Davies R Limited | Wholesale & retail | 2024 |
| Davis ( UK ) Ltd | Information & communication | 2015 |
| Day to Day Cleaners Birmingham Limited | Administrative & support | 2024 |
| DB Trans Express Ltd | Transport & logistics | 2016 |
| Dcloud Networks Limited | Information & communication | 2023 |
| DE Boeuf Ltd | Hospitality | 2022 |
| Dean Giles Limited | Wholesale & retail | 2019 |
| Dedicated Key Services Ltd | Wholesale & retail | 2026 |
| Deeley Events and Consultancy Ltd | Hospitality | 2021 |
| Deen TRD Limited | Wholesale & retail | 2024 |
| Deep Hanjra Contracts Ltd | Construction | 2021 |
| Deep Singh Ltd | Hospitality | 2026 |
| Deepaa Ltd | Wholesale & retail | 2025 |
| Delights by Bill Ltd | Wholesale & retail | 2024 |
| Delish Delights Ltd | Hospitality | 2023 |
| Deliverbynight@Live.Com Ltd | Transport & logistics | 2024 |
| Delivery Freight Ltd | Transport & logistics | 2025 |
| Demaine a SOT Limited | Wholesale & retail | 2000 |
| DEO Transport Limited | Transport & logistics | 2006 |
| Depia Limited | Wholesale & retail | 2023 |
| Deployview Limited | Information & communication | 2014 |
| DES Trans Ltd | Transport & logistics | 2019 |
| Desmond De-Oliver Henry Ltd. | Extraterritorial | 2022 |
| Dessa Limited | Construction | 2009 |
| Dest E-Commerce Limited | Wholesale & retail | 2024 |
| Developers Nationwide UK Ltd | Real estate | 2018 |
| DEW Community Services Ltd | Households | 2024 |
| Dewto Limited | Professional & scientific | 2014 |
| Dezign Apparel Ltd | Wholesale & retail | 2020 |
| DFM Propco Limited | Real estate | 2021 |
| DG Homes Ltd | Real estate | 2021 |
| DG Logisticss Ltd | Transport & logistics | 2017 |
| DGH (Domestic GAS Heating) Ltd | Construction | 2018 |
| DGL Mechanical Handling Systems Ltd | Professional & scientific | 2015 |
| DH Kitchens & Bedrooms UK Ltd | Construction | 2021 |
| Dhesi Builder Midland Ltd | Construction | 2021 |
| Dhillon Construction Services Ltd | Construction | 2023 |
| Dhindsa Buildtech Ltd | Construction | 2025 |
| Dhindsa Driving School Ltd | Education | 2025 |
| Dhindsa G Properties Limited | Real estate | 2026 |
| Dhingra Lettings Ltd | Real estate | 2026 |
| Diamalaye Limited | Transport & logistics | 2015 |
| Diamond BUS (East Midlands) Ltd | Transport & logistics | 2005 |
| Diamond BUS (Liverpool) Limited | Transport & logistics | 2006 |
| Diamond BUS (North West) Limited | Transport & logistics | 1995 |
| Diamond BUS Limited | Transport & logistics | 1990 |
| Diamond Coatings Holdings Limited | Other services | 2015 |
| Diamond Coatings Limited | Manufacturing | 2002 |
| Diamond Site Services Ltd | Administrative & support | 2021 |
| Diesel Automotive Group Ltd | Transport & logistics | 2024 |
| Digiplay Ltd | Information & communication | 2019 |
| Digital Addex Ltd | Information & communication | 2025 |
| Digital Hope Worldwide Ltd | Administrative & support | 2025 |
| Digitax Accountancy Ltd | Professional & scientific | 2022 |
| DIL Express Ltd | Transport & logistics | 2025 |
| Ding Dang DO Limited | Administrative & support | 2016 |
| Direct Corporate Clothing Limited | Wholesale & retail | 2022 |
| Direct Curtains Ltd | Manufacturing | 2023 |
| Direct Flooring Ltd | Wholesale & retail | 2023 |
| Disabled Living Foundation | Health & social care | 1984 |
| Ditzy Limited | Professional & scientific | 2022 |
| Divine Clerical Robes Ltd | Wholesale & retail | 2025 |
| Divine Healthcare Professionals Limited | Administrative & support | 2023 |
| Divine Soul Metal Co Ltd | Manufacturing | 2025 |
| Diyoyo Limited | Health & social care | 2023 |
| DJR Property Services Ltd | Construction | 2025 |
| Dkeastwood Commercial Limited | Wholesale & retail | 2022 |
| Dkgasplumbing Limited | Other services | 2025 |
| DKO Entertainment Ltd | Manufacturing | 2024 |
| Dkrp Limited | Real estate | 2019 |
| DM Auto Group Ltd | Wholesale & retail | 2026 |
| DM JM Holdings Ltd | Financial services | 2025 |
| DM Nikolas Transporter Ltd | Wholesale & retail | 2025 |
| DML Real Estate Ltd | Real estate | 2025 |
| DN Transport (UK) Limited | Transport & logistics | 2013 |
| Doaba Autos Ltd | Wholesale & retail | 2024 |
| Doaba Logistics Limited | Construction | 2026 |
| Dola AI International UK Group Ltd | Information & communication | 2025 |
| Domell Ltd | Extraterritorial | 2019 |
| Dominion Property Investments Ltd | Real estate | 2019 |
| Double D'Z Ltd | Hospitality | 2025 |
| Dove Tree Limited | Financial services | 2019 |
| Dovian Ltd | Transport & logistics | 2019 |