| DK Building & Maintenance Services Ltd | Construction | 2020 |
| DK Burns Ltd | Construction | 2022 |
| DK Property Management and Services Ltd | Households | 2025 |
| DK Razor Parlour C.I.C. | Other services | 2025 |
| Dkass Comms Ltd | Information & communication | 2010 |
| DKB Construction Ltd | Construction | 2020 |
| DKB Plumbing and Heating Limited | Construction | 2024 |
| DKB Property Holdings Limited | Real estate | 2025 |
| Dkbh Limited | Hospitality | 2025 |
| DKD Trading Services Limited | Professional & scientific | 2008 |
| DKL Estates Limited | Real estate | 2023 |
| DKM Consultancy Services Ltd | Real estate | 2007 |
| Dkmn Ltd | Wholesale & retail | 2011 |
| Dkmnfoods Ltd | Hospitality | 2023 |
| DKN Developments Limited | Construction | 2017 |
| DKR WB Ltd | Hospitality | 2025 |
| DKS Retail Ltd | Wholesale & retail | 2014 |
| Dksk Electrical Ltd | Construction | 2018 |
| DKW63 Limited | Financial services | 2022 |
| Dkwebworks Limited | Information & communication | 2025 |
| Dkworks Limited | Wholesale & retail | 2020 |
| DL Aviation Ltd | Transport & logistics | 2025 |
| DL Customs & Logistics Limited | Transport & logistics | 2023 |
| DL Design Studio Limited | Professional & scientific | 2013 |
| DL Tastea Ltd | Manufacturing | 2025 |
| DL22 Limited | Professional & scientific | 2024 |
| DLC Specialist Clinical Services Ltd | Health & social care | 2020 |
| DLG Property 2025 Limited | Real estate | 2025 |
| DLJ Advisory Services LLP | | 2010 |
| DLL Development Ltd | Real estate | 2024 |
| DLP Distribution Limited | Wholesale & retail | 2013 |
| DLR Energy Inspection Ltd | Professional & scientific | 2014 |
| Dlux Living Ltd | Real estate | 2023 |
| Dlux Property Holdings Ltd | Real estate | 2024 |
| DLX Logistics Ltd | Transport & logistics | 2024 |
| DM & HL Bower LLP | | 2018 |
| DM Beckett Mortgages Limited | Financial services | 2019 |
| DM Elite Decor Contractors Ltd | Construction | 2021 |
| DM Health Consultancy Ltd | Health & social care | 2021 |
| DM Holdings (U.K) Limited | Financial services | 2026 |
| DM Korn Ltd | Real estate | 2024 |
| DM Mews Management Limited | Real estate | 2023 |
| DM Offshore Engineering Ltd | Professional & scientific | 2022 |
| DM Plumbing & Heating (Nottingham) Limited | Construction | 2019 |
| DM Properties (U.K.) Ltd | Real estate | 2026 |
| DM Sports Consulting Limited | Other services | 2015 |
| DM Street Management Limited | Real estate | 2023 |
| Dm&Co Ltd | Hospitality | 2023 |
| Dmatrixs Ltd | Information & communication | 2021 |
| Dmcd EVS Limited | Information & communication | 2020 |
| DMD Auto Sales Limited | Wholesale & retail | 2025 |
| DMD BUS and Coach Maintenance Solutions Limited | Manufacturing | 2022 |
| Dmead RTM Company Limited | Households | 2024 |
| DMG 1 Limited | Information & communication | 2026 |
| DMG Dynamics Limited | Professional & scientific | 2023 |
| DMG Plumbing, Heating & Electric Ltd | Construction | 2021 |
| DMI Building and Joinery Services Ltd | Construction | 2024 |
| DMJ Barbers Limited | Other services | 2019 |
| DMJ Couriers Ltd | Transport & logistics | 2020 |
| Dmlr Electrical Ltd | Construction | 2019 |
| DMO Fire Safety Ltd | Public administration | 2022 |
| DMP Plastering Contractors Limited | Construction | 2016 |
| Dmph Ltd | Construction | 2024 |
| DMS Flow Measurement and Controls Limited | Wholesale & retail | 2000 |
| DMS Metering Limited | Financial services | 2015 |
| DMT Consulting Limited | Mining & quarrying | 1947 |
| DMT Dormant Company 1 Limited | Extraterritorial | 2007 |
| DMT Dormant Company 2 Limited | Extraterritorial | 1996 |
| DMT Dormant Company 3 Limited | Extraterritorial | 2007 |
| DMT Dormant Company 4 Limited | Extraterritorial | 2007 |
| DMT Dormant Company 5 Limited | Extraterritorial | 2007 |
| DMT Mining Consulting Limited | Extraterritorial | 2014 |
| Dmtc Ltd | Information & communication | 2024 |
| Dmtdau Ltd | Other services | 2023 |
| DMW Developments Nottingham Limited | Construction | 2020 |
| DMW Property Services Limited | Real estate | 2010 |
| DMW Safety Ltd | Administrative & support | 2021 |
| DN Building Ltd | Construction | 2018 |
| DN50 Limited | Financial services | 2022 |
| DNA Autocare Limited | Wholesale & retail | 2011 |
| DNA Entertainment Ltd | Information & communication | 2021 |
| DNA Project Solutions Limited | Construction | 2017 |
| Dnaai Ltd | Information & communication | 2026 |
| Dnbsounds Ltd | Arts & recreation | 2023 |
| Dndautomotive Limited | Hospitality | 2022 |
| Dndcares Limited | Real estate | 2025 |
| Dndih Limited | Administrative & support | 2006 |
| DNE Express Logistics Ltd | Transport & logistics | 2025 |
| DNH Business Solutions Ltd | Information & communication | 2013 |
| DNM Electrical Limited | Construction | 2013 |
| Dnmpf Ltd | Public administration | 2024 |
| DNS Property Developers Limited | Construction | 2004 |
| DNT Property Limited | Real estate | 2021 |
| Dntw Properties Ltd | Real estate | 2025 |
| DNZ Electric Company Ltd | Construction | 2020 |
| DO Easy Ltd | Information & communication | 2025 |
| DO IT Events Limited | Arts & recreation | 2026 |
| DO Talk Write Ltd | Education | 2018 |
| Doaba Group Limited | Real estate | 2025 |
| DOB Park Close Management Limited | Real estate | 2017 |