| Devsatya Ltd | Manufacturing | 2012 |
| Devstow Ltd | Information & communication | 2025 |
| Dewgrove Limited | Information & communication | 2016 |
| Dewscape Limited | Administrative & support | 2008 |
| Dexcor Limited | Administrative & support | 2017 |
| Dexstone Limited | Real estate | 2012 |
| Dexter Estates Ltd | Real estate | 2013 |
| DEY & PYC Spirits Ltd | Manufacturing | 2024 |
| DF Enterprises Ltd | Hospitality | 2022 |
| DF Events Ltd | Hospitality | 2016 |
| Df-Gaglani & Co Ltd | Health & social care | 2024 |
| DFI Solutions London Ltd | Manufacturing | 2018 |
| Dfittings Limited | Wholesale & retail | 2013 |
| Dfll Properties Limited | Real estate | 2019 |
| DFS Decorating Ltd | Construction | 2026 |
| DG & PM Consultancy Limited | Professional & scientific | 2026 |
| DG Alpha Ltd | Information & communication | 2026 |
| DG Bookkeeping & Accounts Ltd | Professional & scientific | 2024 |
| DG Podiatrist Ltd | Health & social care | 2014 |
| DG Property Investments London Ltd | Construction | 2024 |
| Dg-Uk Global Management & Technology Ltd | Information & communication | 2021 |
| Dggn Ltd | Wholesale & retail | 2026 |
| Dgkp Properties Limited | Real estate | 2020 |
| DGP Solutions Holdings Limited | Financial services | 2024 |
| DH Health and Safety Advisors Ltd | Hospitality | 2009 |
| DH Healthcare (Bucks) Ltd | Health & social care | 2021 |
| DH UK Group Ltd | Wholesale & retail | 2023 |
| DH5 Ltd | Hospitality | 2025 |
| DH7MSGHAN Ltd | Other services | 2016 |
| Dhalia Enterprise Limited | Hospitality | 2018 |
| Dhamecha Lohana Centre Limited | Real estate | 2014 |
| Dhamsghan Trust | Health & social care | 2016 |
| Dhan Fire and Electrical Limited | Construction | 2021 |
| Dhankhar&Kajal Limited | Health & social care | 2025 |
| Dhanraj Traders Ltd | Wholesale & retail | 2025 |
| Dhans Limited | Construction | 2006 |
| Dhanush Enterprise Limited | Wholesale & retail | 2022 |
| Dhanush Supply Ltd | Wholesale & retail | 2025 |
| Dhanvantari Clinical Services Limited | Professional & scientific | 2013 |
| Dharan International Limited | Financial services | 2024 |
| Dharma World Limited | Wholesale & retail | 2024 |
| Dharmkunj Ventures Limited | Arts & recreation | 2024 |
| Dharr Construction Limited | Construction | 2026 |
| Dharti Properties Limited | Real estate | 2024 |
| Dharti Resources Ltd | Professional & scientific | 2018 |
| Dhavlos Investments Ltd | Real estate | 2004 |
| DHD Plumbing Company Limited | Construction | 2018 |
| Dheba Property Investment Ltd | Real estate | 2026 |
| Dhiyan & Priyana Holdings Ltd | Households | 2018 |
| DHJ Properties Limited | Real estate | 2016 |
| Dhmal Limited | Health & social care | 2019 |
| Dholak 2 Limited | Real estate | 2022 |
| Dholak Estates Limited | Real estate | 2015 |
| Dholak Limited | Construction | 2016 |
| Dholak Partnership Holdings Limited | Administrative & support | 2014 |
| Dholak Partnership Homes Limited | Real estate | 2018 |
| Dholak Properties Limited | Construction | 2016 |
| Dhow Investments Ltd | Financial services | 2025 |
| Dhrishman Properties Ltd | Real estate | 2021 |
| Dhru Supplies Ltd | Wholesale & retail | 2026 |
| Dhruhaan Ltd | Transport & logistics | 2017 |
| Dhruv and Family Limited | Wholesale & retail | 2025 |
| Dhruv International Private Limited | Information & communication | 2024 |
| Dhruva P Limited | Real estate | 2022 |
| Dhuuho B Limited | Health & social care | 2023 |
| Dhvija UK Limited | Wholesale & retail | 2020 |
| Dhwaneity Investments Ltd | Real estate | 2022 |
| Dhwani Infotech Ltd | Information & communication | 2011 |
| Dhyan Capital Management LLP | | 2022 |
| Dhyan Corporation Limited | Wholesale & retail | 2025 |
| Dhyan Enterprises Limited | Construction | 2014 |
| Dhyana IT Services Ltd | Information & communication | 2025 |
| DI Stefano Nickos Limited | Transport & logistics | 2017 |
| Diaconu & Co Ltd | Extraterritorial | 2014 |
| Diadromy Limited | Professional & scientific | 2023 |
| Diagenics Limited | Other services | 1994 |
| Dial a Curry (Kent) Ltd | Hospitality | 2016 |
| Diamnet Limited | Wholesale & retail | 2018 |
| Diamond Cakes Ltd | Manufacturing | 2022 |
| Diamond House Design Ltd | Construction | 2018 |
| Diamond Rice UK Ltd | Professional & scientific | 2025 |
| Diamond Stays Ltd | Real estate | 2023 |
| Diamond Trading Platform Limited | Professional & scientific | 2017 |
| Diamondi Property Investments Ltd | Real estate | 2020 |
| Diamonds Builder Ltd | Construction | 2024 |
| Diams Boat Ltd | Transport & logistics | 2025 |
| Dian Club Limited | Education | 2023 |
| Diarth Holdings Limited | Real estate | 2026 |
| Diba Couture Limited | Wholesale & retail | 2020 |
| Dicing With Death Ltd | Information & communication | 2026 |
| Dickinsonmedical Limited | Health & social care | 2023 |
| Didafresh Ltd. | Wholesale & retail | 2019 |
| Didy's Ltd | Hospitality | 2012 |
| Diego Doporto Limited | Real estate | 2002 |
| Diesel Services Limited | Professional & scientific | 1996 |
| Different Colour Productions Limited | Information & communication | 2004 |
| Differential Analytics Ltd | Information & communication | 2020 |
| Diffusion Planet Limited | Information & communication | 2024 |
| DIG1T Games Ltd | Education | 2014 |
| Digesh Limited | Wholesale & retail | 2011 |