| DLM Lighting Limited | Administrative & support | 2009 |
| Dlpx Ltd | Transport & logistics | 2024 |
| DLS Contract Services Ltd | Transport & logistics | 2025 |
| DLV Retail Ltd | Wholesale & retail | 2026 |
| DM Catering Ltd | Hospitality | 2016 |
| DMA Armthorpe Limited | Wholesale & retail | 2013 |
| DMB Autoparts Limited | Other services | 2020 |
| DMB TM Ltd | Public administration | 2025 |
| DMC Equity Group Limited | Financial services | 2025 |
| DMC Specialist Cars Ltd | Wholesale & retail | 2025 |
| DMH Lifting Services Ltd | Construction | 2025 |
| DMK Decor Ltd | Construction | 2017 |
| DMK Homz Ltd | Real estate | 2020 |
| Dmlc Logistics Ltd | Transport & logistics | 2025 |
| DMM Food & Wine Store Ltd | Wholesale & retail | 2023 |
| Dmnc Ltd | Health & social care | 2024 |
| DMO Scaffolding Ltd | Construction | 2019 |
| DMR Consultants Limited | Transport & logistics | 2025 |
| DMR Logistics Ltd | Transport & logistics | 2025 |
| DMR Repair Centre Limited | Wholesale & retail | 2021 |
| DMS Doncaster LLP | | 2017 |
| DMS International Trading Limited | Professional & scientific | 2009 |
| DMS Transport Ltd | Transport & logistics | 2017 |
| Dmsr Estates Ltd | Real estate | 2020 |
| DMV Traffic Limited | Transport & logistics | 2015 |
| Dmzt Property Limited | Real estate | 2025 |
| DN China House Limited | Hospitality | 2024 |
| DN Distribution Ltd | Wholesale & retail | 2025 |
| DN Group (Yorkshire) Limited | Construction | 2017 |
| DN Hospitality Ltd | Hospitality | 2024 |
| DN Steel Bending Ltd | Manufacturing | 2026 |
| DN Storage Ltd | Other services | 2018 |
| DN Taste Limited | Hospitality | 2025 |
| DN Telecommunications Ltd | Information & communication | 2017 |
| Dn-Madina Food Store Ltd | Wholesale & retail | 2023 |
| DN1 Cafe Limited | Hospitality | 2025 |
| DN1 Coffee Ltd | Hospitality | 2025 |
| DN1 Gourmet Catering Ltd | Hospitality | 2023 |
| DN1 Property Professionals Ltd. | Real estate | 2011 |
| DN11 Joinery Limited | Construction | 2023 |
| DN3 Storage Ltd | Other services | 2018 |
| DN4 Dance and Theatre Ltd | Education | 2019 |
| DN4 Innovation Management Ltd | Professional & scientific | 2020 |
| DN6 Engineers & Consultants Limited | Transport & logistics | 2015 |
| DN6 MX Ltd | Wholesale & retail | 2024 |
| DN7 Building Services Ltd | Construction | 2023 |
| DN7 Community CIC | Arts & recreation | 2026 |
| DN7 Developments Ltd | Real estate | 2022 |
| DNA Plastering Doncaster Limited | Construction | 2024 |
| DND Pearson (UK) Ltd | Financial services | 2024 |
| DNG Sons Limited | Construction | 2021 |
| DNK Renewables Limited | Construction | 2022 |
| Dnls Doncaster Ltd | Real estate | 2025 |
| DNN Transport Limited | Transport & logistics | 2019 |
| Dnpenterprises Ltd | Hospitality | 2025 |
| Dnsp Ltd | Administrative & support | 2023 |
| Dnsu Limited | Hospitality | 2022 |
| Doberman Consulting Ltd | Professional & scientific | 2019 |
| Dobre GO4YOU Limited | Wholesale & retail | 2024 |
| Dobson and Hodge General Limited | Financial services | 2019 |
| Dobson and Hodge Holdings Limited | Extraterritorial | 2013 |
| Docena Limited | Hospitality | 1988 |
| Docsun Home and Living UK Ltd. | Wholesale & retail | 2020 |
| Doctor Brochure Ltd | Transport & logistics | 2019 |
| Doctor Phone (Doncaster) Limited | Wholesale & retail | 2023 |
| Doctor Technical Electronics Ltd | Wholesale & retail | 2025 |
| Dod's Timber and Fencing Supplies Limited | Construction | 2014 |
| Doddle Design Limited | Information & communication | 2018 |
| Doff Ltd | Financial services | 2026 |
| Dog EGG Limited | Information & communication | 2011 |
| Dogaholic Online Ltd | Information & communication | 2025 |
| Doggi Divas Ltd | Other services | 2010 |
| Dogs Choice RAW Food Ltd | Wholesale & retail | 2022 |
| Doktur Ltd | Manufacturing | 2025 |
| Dolina Glinu Limited | Manufacturing | 2022 |
| Dollar NET Products Ltd | Health & social care | 2013 |
| Dollies and Dinosaurs Ltd | Health & social care | 2026 |
| Dolly RAY Ltd | Information & communication | 2010 |
| Dolphin ICT Ltd | Information & communication | 2007 |
| DOM Property Management Limited | Real estate | 2026 |
| DOM ST 23 Ltd | Wholesale & retail | 2023 |
| Domain DEV Ltd | Professional & scientific | 2008 |
| Domain Holders Ltd | Professional & scientific | 2008 |
| Domain Rights Ltd | Professional & scientific | 2008 |
| Domain Synergies Ltd | Administrative & support | 2008 |
| Domat Trans Ltd | Transport & logistics | 2026 |
| Domateq Ltd | Wholesale & retail | 2026 |
| Domegroep LLP | | 2023 |
| Domercoo Ltd | Construction | 2014 |
| Domestic Chimney Sweep Limited | Administrative & support | 2026 |
| Domestic Energy Assessments Ltd | Construction | 2023 |
| Domeview (Tinsley) Limited | Real estate | 2014 |
| Domeview (Yorkshire) Holdings Limited | Administrative & support | 2009 |
| Domeview (Yorkshire) Limited | Wholesale & retail | 1994 |
| Domeview (Yorkshire) Properties Limited | Real estate | 2009 |
| Domi Studio Ltd | Wholesale & retail | 2026 |
| Domin Transport Ltd | Transport & logistics | 2014 |
| Dominic Carriage Ltd | Transport & logistics | 2023 |
| Dominidesign Holding Ltd | Financial services | 2013 |
| Dominidesign Ltd | Extraterritorial | 2013 |