| Design DI Lusso Limited | Construction | 2011 |
| Design Engineering Solutions Ltd | Professional & scientific | 2015 |
| Design Windows System Ltd | Construction | 2024 |
| Designamics Ltd | Wholesale & retail | 2016 |
| Designconsult Limited | Professional & scientific | 2015 |
| Designed Developments Limited | Construction | 2025 |
| Designed for More Limited | Education | 2021 |
| Designhive Media Limited | Construction | 2009 |
| Desita Ltd | Construction | 2015 |
| Desmar Limited | Construction | 2025 |
| Desmond Heggie Ltd | Professional & scientific | 2012 |
| Despaced Limited | Wholesale & retail | 2019 |
| Destination Dreamz Limited | Administrative & support | 2023 |
| Destined to Travel Ltd | Administrative & support | 2025 |
| Destiny Christian Centre Limited | Other services | 2010 |
| Destiny Christian Centre Ministries | Other services | 2012 |
| Destiny Creations C.I.C. | Professional & scientific | 2018 |
| Destiny Creations Properties Ltd | Real estate | 2023 |
| Detailed Project Management Ltd | Professional & scientific | 2023 |
| Detek Consultancy Ltd | Professional & scientific | 2012 |
| DEV Stores Limited | Wholesale & retail | 2016 |
| Deva-Uk Ltd | Households | 2016 |
| Devarsh Capital Limited | Real estate | 2022 |
| Devarsh Properties Ltd | Real estate | 2024 |
| Deveng Jobs Ltd | Administrative & support | 2023 |
| Devgeet Properties Ltd | Real estate | 2026 |
| Devine Estates Limited | Real estate | 2002 |
| Devine Management Services Ltd | Extraterritorial | 2008 |
| Devine Nominees Limited | Professional & scientific | 2020 |
| Devon Marine Limited | Professional & scientific | 2016 |
| Devonia Properties Limited | Real estate | 2017 |
| Devonshire Close (Management) Limited | Households | 1986 |
| Devonshire Place London Limited | Real estate | 2022 |
| DEW Transport Services Limited | Transport & logistics | 2024 |
| Deway Care Limited | Public administration | 2019 |
| Dexapath Limited | Information & communication | 2025 |
| Dexwell Group Ltd | Wholesale & retail | 2017 |
| Dezael Care Ltd | Health & social care | 2022 |
| Dezin Limited | Health & social care | 2014 |
| DFM Electrical Limited | Construction | 2012 |
| DG Brokerage Ltd | Professional & scientific | 2024 |
| DG Fire & Security Ltd | Construction | 2025 |
| Dgarden and Maintenance Ltd | Administrative & support | 2022 |
| DGC Consultancy Ltd | Professional & scientific | 2023 |
| DGK Carpentry Ltd | Construction | 2022 |
| DGK Signalling Ltd | Professional & scientific | 2016 |
| DGP Energy Ltd | Energy | 2015 |
| DH Vision Ltd | Manufacturing | 2014 |
| Dhairya Limited | Real estate | 2024 |
| Dhaka Associates Ltd | Administrative & support | 2025 |
| Dhaliwal Property Group Ltd | Real estate | 2020 |
| Dhanak Real Estate Ltd | Real estate | 2023 |
| Dharaa Ltd | Real estate | 2023 |
| Dharma Advise Media Ltd | Other services | 2022 |
| Dharma Beauty Limited | Other services | 2023 |
| Dhillon Global Investments Ltd | Real estate | 2019 |
| Dhilsanjh Limited | Hospitality | 2018 |
| Dhiman Group Ltd | Professional & scientific | 2019 |
| Dhiman Property Group Ltd | Real estate | 2018 |
| Dhiman Services Group Ltd | Information & communication | 2018 |
| Dhiya Properties Limited | Real estate | 2018 |
| DHK Investments Limited | Real estate | 2020 |
| DHL Electrical Ltd | Construction | 2026 |
| Dhlr Associates Limited | Information & communication | 2008 |
| Dhonveli Trading Ltd | Real estate | 2017 |
| Dhrithi Limited | Information & communication | 2023 |
| Dhruvil Construction Limited | Construction | 2026 |
| Dhwitansh Technologies Limited | Information & communication | 2018 |
| Dhyan Logistic Ltd | Transport & logistics | 2016 |
| Di'Artistry Salon & Academy Ltd | Other services | 2025 |
| Diadem Performance AI Limited | Administrative & support | 2025 |
| Diadem Performance Limited | Administrative & support | 2009 |
| Diagnostics Rads Limited | Health & social care | 2024 |
| Dial House Care Holdings Limited | Health & social care | 2022 |
| Dial House Care Limited | Health & social care | 1978 |
| Diamond by Nails Ltd Limited | Other services | 2020 |
| Diamond Dispute Resolution Limited | Financial services | 2015 |
| Diamond Red Holdings Ltd | Financial services | 2024 |
| Diamonds Entertainment Ltd | Arts & recreation | 2025 |
| Diana BRK Skin Care Ltd | Other services | 2023 |
| Diana Romina Limited | Health & social care | 2019 |
| Diar Properties Ltd | Other services | 2012 |
| Dicks (Electrical Installations) Limited | Construction | 1960 |
| Dickson Property Ltd. | Professional & scientific | 1987 |
| Dide Ltd | Manufacturing | 2016 |
| Didi Online Limited | Health & social care | 2021 |
| Didoo Communication Consultants Limited | Administrative & support | 2006 |
| Diforti Group Limited | Financial services | 2024 |
| DIG & Connect Water Services Limited | Construction | 2019 |
| DIG VR Limited | Information & communication | 2022 |
| Digi Group East Limited | Professional & scientific | 2017 |
| Digi Vision Group Limited | Professional & scientific | 2003 |
| Digiadapt Ltd | Professional & scientific | 2024 |
| Digimgo Technology Limited | Professional & scientific | 2017 |
| Digital Asset Experts Ltd | Professional & scientific | 2023 |
| Digital Business Ltd | Information & communication | 2016 |
| Digital Cipher Ltd | Information & communication | 2026 |
| Digital District Limited | Information & communication | 2018 |
| Digital Dukan Ltd | Manufacturing | 2022 |
| Digital Media Consulting Ltd | Professional & scientific | 2025 |