| Dawsons Developments Limited | Construction | 2004 |
| DB Products Ltd | Construction | 2025 |
| DC Computing Ltd | Other services | 2025 |
| DC Lawn Clear & Waste Management Ltd | Water & waste | 2026 |
| DC Taylor Limited | Households | 2025 |
| DCC Safety Services Ltd | Professional & scientific | 2026 |
| DCH Electrics Ltd | Construction | 2020 |
| DCJ Transport Services Ltd | Transport & logistics | 2026 |
| DCW Construction Ltd | Construction | 2020 |
| De-Food Caretaker Ltd | Wholesale & retail | 2024 |
| Deakin HR Services Limited | Information & communication | 2010 |
| Dealsmart Limited | Wholesale & retail | 2026 |
| Dean Bennett Limited | Information & communication | 2025 |
| Dean Malpass Consulting Limited | Other services | 2016 |
| Dean Mansell Limited | Real estate | 2018 |
| Deanestor Limited | Manufacturing | 1994 |
| Declan Levey Ltd | Agriculture & fishing | 2024 |
| Deco Expert Limited | Construction | 2016 |
| Deed Construction Ltd | Construction | 2021 |
| Deed Property Ltd | Real estate | 2026 |
| Defiant Transport Services Ltd | Transport & logistics | 2022 |
| Dehra DUN Limited | Hospitality | 2023 |
| Della Developments Ltd | Construction | 2023 |
| Delphis IT Limited | Information & communication | 1998 |
| Delta RHO Software Ltd | Information & communication | 2024 |
| Delta Service Station Ltd | Wholesale & retail | 2023 |
| Deluxe Bathrooms Ltd. | Construction | 2018 |
| Deluxe Healthcare Solutions Ltd | Health & social care | 2021 |
| Delynk Ltd | Wholesale & retail | 2023 |
| DEM Electrical Limited | Construction | 2007 |
| Denbar Limited | Extraterritorial | 2013 |
| Denisa&Adam Ltd | Real estate | 2025 |
| Denri-Care Limited | Public administration | 2025 |
| Derby and FT Pubs Ltd | Hospitality | 2021 |
| Derby Solar Ltd | Energy | 2026 |
| Derbyshire Chippy Ltd | Hospitality | 2024 |
| Derbyshire Cylinder Services Ltd | Other services | 2024 |
| Derbyshire Family Holdings Limited | Real estate | 2008 |
| Derbyshire Farm Vets Limited | Professional & scientific | 2019 |
| Derbyshire Trekking Centre Limited | Arts & recreation | 2025 |
| Derek C Stewart Associates Ltd | Education | 2016 |
| Derwent Abbey Associates Limited | Professional & scientific | 2009 |
| Desai Orth. Limited | Health & social care | 2010 |
| Design 2 Studio Limited | Manufacturing | 2013 |
| Desman (UK) Ltd | Professional & scientific | 2011 |
| Dessert Sensation Ltd | Hospitality | 2021 |
| Desta UK Ltd | Construction | 2024 |
| Destino Padel (Chesterfield) Ltd | Arts & recreation | 2026 |
| Destino Padel Ltd | Arts & recreation | 2025 |
| Detallado Design Limited | Professional & scientific | 2015 |
| Devhq Solutions Limited | Information & communication | 2007 |
| Devine Aviation Services Limited | Transport & logistics | 2011 |
| Devon Dog Boarding Limited | Other services | 2011 |
| Devonshire Court Limited | Real estate | 2024 |
| Dewberry Engineering Ltd | Construction | 2008 |
| DG Leicester Limited | Real estate | 2020 |
| DH7 Holdings Limited | Financial services | 2025 |
| Dhan Store Ltd | Wholesale & retail | 2025 |
| Dharani Private Ltd | Health & social care | 2024 |
| Dhillons News Ltd | Wholesale & retail | 2012 |
| Dhillons Property Management Ltd | Real estate | 2018 |
| Diafora Limited | Professional & scientific | 2016 |
| Diafora Project Management Limited | Professional & scientific | 2019 |
| Diafora Quantity Surveying Limited | Professional & scientific | 2019 |
| Diamante Crafts Limited | Wholesale & retail | 2011 |
| Diamond Kitchens / Bathrooms Ltd | Construction | 2023 |
| Diamond Nails Mansfield Ltd | Other services | 2021 |
| Diamond-Pfp Limited | Construction | 2025 |
| Dice Healthcare Limited | Health & social care | 2015 |
| Diddy Services Group Ltd | Administrative & support | 2025 |
| Diginara Ltd | Professional & scientific | 2025 |
| Digital Architect Services Ltd | Administrative & support | 2017 |
| Digital Chambers Ltd | Information & communication | 2019 |
| Digital Development Group Ltd | Information & communication | 2022 |
| Digital Displays (SDM) Ltd | Manufacturing | 2011 |
| Digs&Digs Ltd | Wholesale & retail | 2025 |
| Dijitul Ltd | Information & communication | 2020 |
| Diligence EHS Limited | Professional & scientific | 2019 |
| Dineth Limited | Wholesale & retail | 2024 |
| Diputnet Technologies Limited | Information & communication | 2023 |
| Direct Approach Consultancy Limited | Professional & scientific | 2019 |
| Direct CAD Solutions Limited | Professional & scientific | 2003 |
| Direct Roofing Systems Limited | Administrative & support | 2017 |
| Direct Scaffolding East Midlands Ltd | Construction | 2021 |
| Dirty Dogz Limited | Wholesale & retail | 2024 |
| Dirty Horse & Muddy Boots Ltd | Wholesale & retail | 2020 |
| Disco Sisters Clothing Ltd | Wholesale & retail | 2025 |
| Discreet Lettings Ltd | Wholesale & retail | 2021 |
| Distinct Fourfour Ltd | Wholesale & retail | 2024 |
| Divine Trinity Ltd | Wholesale & retail | 2026 |
| DJ Building Services Mansfield Ltd | Construction | 2024 |
| DJI Group Ltd | Construction | 2014 |
| DJN UK Ltd | Wholesale & retail | 2009 |
| DJP Homes Ltd | Real estate | 2026 |
| DK Developments & Lettings Limited | Real estate | 2013 |
| DKJ NAV Limited | Transport & logistics | 2014 |
| DKS Home Solutions Limited | Real estate | 2022 |
| DKW Distribution Ltd | Wholesale & retail | 2026 |
| DL Fencing Ltd. | Construction | 2018 |
| DLS Contract Solutions Ltd | Other services | 2026 |