| Dovedale Black Stripe Ltd | Real estate | 2024 |
| Dovedale Property Ltd | Information & communication | 2020 |
| Dovedale Woodward Estates Ltd | Real estate | 2023 |
| Dovercourt Services Ltd | Education | 2022 |
| Downbad Ltd | Wholesale & retail | 2023 |
| Doyle Decorators Limited | Construction | 2016 |
| DP Autos Ltd | Wholesale & retail | 2023 |
| DP Domestics Ltd | Other services | 2021 |
| Dp-Rp Holdings Ltd | Information & communication | 2020 |
| DPA 85 Limited | Transport & logistics | 2025 |
| DPA Automotive Ltd | Wholesale & retail | 2018 |
| Dpcc Limited | Information & communication | 2011 |
| DPE Consultants Ltd | Administrative & support | 2017 |
| DPF Contractors Ltd | Construction | 2013 |
| DPL Automotive Limited | Wholesale & retail | 2025 |
| DR Graham Hayes Limited | Extraterritorial | 2013 |
| DR M L Daly Dermatology Ltd | Health & social care | 2015 |
| DR Marios Stamoulas Limited | Health & social care | 2011 |
| DR Marketing Consultants Ltd | Professional & scientific | 2022 |
| DR Sarkar & DR ROY Limited | Health & social care | 2014 |
| DR SZ Holdings Ltd | Financial services | 2026 |
| DR SZ Medical Ltd | Health & social care | 2026 |
| DR. M. Shoukri Ltd | Health & social care | 2025 |
| Dracven Planning Ltd | Construction | 2024 |
| Draefern Limited | Administrative & support | 1986 |
| Dragoke Limited | Extraterritorial | 2022 |
| Dragon Automotives Limited | Manufacturing | 2000 |
| Dragon EGG Films & Media Ltd | Information & communication | 2021 |
| Dragon Engines Limited | Wholesale & retail | 2018 |
| Dragon Properties Limited | Real estate | 2002 |
| Dragonfly Development Limited | Construction | 2016 |
| Dragonfly Management (Bolsover) Limited | Real estate | 2023 |
| Drainage 2000 Limited | Construction | 1999 |
| Dream Catchers Nursery Ltd | Other services | 2011 |
| Drew Aesthetics Ltd | Other services | 2024 |
| Drew Mayers Limited | Health & social care | 2022 |
| Drewtoft Ltd | Wholesale & retail | 2026 |
| Drill Store UK Limited | Wholesale & retail | 2007 |
| Driveout Site Services Limited | Administrative & support | 2018 |
| Driver First Assist AED Ltd | Wholesale & retail | 2021 |
| Driver First Assist CIC | Administrative & support | 2013 |
| Drives and Automation Holdings Limited | Financial services | 2021 |
| Drives and Automation Limited | Manufacturing | 2001 |
| Droko Ltd | Construction | 2024 |
| Dronfield Business Solutions Limited | Administrative & support | 2013 |
| Dronfield Dance and Theatre Academy Limited | Education | 2017 |
| Dronfield Pizza Shop Limited | Hospitality | 2023 |
| Dronfield Upholstery Services Limited | Manufacturing | 2007 |
| Dropsie Ltd | Wholesale & retail | 2025 |
| Drypro Damproofing & Structural Solutions Limited | Construction | 2016 |
| DS & DW Holdings Limited | Real estate | 2024 |
| DS Drainage Solutions Ltd | Administrative & support | 2018 |
| DS Driving Solutions Ltd | Transport & logistics | 2017 |
| DS Fencing Ltd | Construction | 2025 |
| DS Fibre Solutions Ltd | Construction | 2020 |
| DS Realty Ltd | Real estate | 2021 |
| DS Studios Limited | Health & social care | 2010 |
| DS Swim Ltd | Arts & recreation | 2016 |
| DSF HPP Ltd | Professional & scientific | 2018 |
| DSI Underground UK Holdings Limited | Professional & scientific | 2012 |
| Dslcd Limited | Professional & scientific | 2015 |
| DTA Performing Arts Limited | Arts & recreation | 2025 |
| Dubforge Limited | Wholesale & retail | 2026 |
| Duckmanton Miners' Welfare Social Club Limited | Hospitality | 1992 |
| Duckmanton Minibus Hire Limited | Transport & logistics | 2001 |
| Dudley's Doggy Warehouse Ltd | Wholesale & retail | 2021 |
| Dukeries Carpentry and Joinery Limited | Construction | 2022 |
| Dundar Pizza Ltd | Hospitality | 2022 |
| Dungeon Dojo CIC | Health & social care | 2023 |
| Dunham Entertainment Ltd | Information & communication | 2026 |
| Dunston Apartments Ltd | Construction | 2026 |
| Dunston Barns Management Company Limited | Real estate | 2015 |
| Dunston Hall Leisure Limited | Wholesale & retail | 2020 |
| Dunston Lodge Limited | Other services | 2003 |
| Dvstraining Limited | Education | 2025 |
| DW Coaches Ltd | Transport & logistics | 2020 |
| DW Resin & Landscaping Limited | Administrative & support | 2025 |
| DW Wealth and Markets Limited | Administrative & support | 2024 |
| DWL Civils/ Developments Limited | Administrative & support | 2005 |
| DWL Developments Ltd | Construction | 2024 |
| DY Sports Management Limited | Education | 2022 |
| Dynamas (Group) Ltd | Wholesale & retail | 2025 |
| Dynamas Limited | Wholesale & retail | 2024 |
| Dynamic Development Services Limited | Administrative & support | 2016 |
| Dynamic Horizon Training Ltd | Arts & recreation | 2026 |
| Dynasty ZC Ltd | Real estate | 2023 |
| Dynatek UK Limited | Extraterritorial | 2023 |
| Dyph Ltd | Administrative & support | 2013 |
| Dyson Creative Ltd | Professional & scientific | 2009 |
| Dyson Group PLC | Professional & scientific | 1920 |
| Dyson Industries Limited | Real estate | 1974 |
| Dyson Technical Ceramics Limited | Manufacturing | 2012 |
| E & H Renovations Limited | Construction | 2021 |
| E & R Property Development Limited | Real estate | 2022 |
| E a Products Limited | Wholesale & retail | 2019 |
| E DOT Developments Ltd | Real estate | 2020 |
| E Energies Ltd | Water & waste | 2021 |
| E H Property Development Limited | Construction | 2025 |
| E Haag Jewellers Ltd | Wholesale & retail | 2025 |
| E Hollingworth Design Ltd | Professional & scientific | 2011 |