| Dean Handley Builders Limited | Construction | 2012 |
| Dean Horsfall GAS Services Limited | Manufacturing | 2012 |
| Dean Smith & Grace Ltd | Other services | 2016 |
| Deanhead Consulting Ltd | Professional & scientific | 2017 |
| Dec's Recs Quality Reclamation Limited | Wholesale & retail | 2025 |
| Decal MOT Ltd | Wholesale & retail | 2024 |
| Decanus Ltd | Information & communication | 2025 |
| Decarbon Logistics Solutions Limited | Transport & logistics | 2023 |
| Decopac Holdings Limited | Real estate | 2008 |
| Decopanel Limited | Wholesale & retail | 2008 |
| Decorating Technology Limited | Extraterritorial | 2020 |
| Decreased Ltd | Other services | 2017 |
| Deekom Limited | Wholesale & retail | 2024 |
| Deep PAN Pizzeria Limited | Hospitality | 2024 |
| Deeper Connections Ltd | Health & social care | 2024 |
| Deerplay Farm Ltd | Agriculture & fishing | 2026 |
| Definitive Guides Ltd | Information & communication | 2011 |
| Dege Company Ltd | Real estate | 2025 |
| DEI Solutions Ltd | Construction | 2024 |
| Deighton Engineers (Halifax) Limited | Manufacturing | 2006 |
| Delaney Projects Limited | Real estate | 2026 |
| Delaross Ltd | Arts & recreation | 2016 |
| Delaspian Limited | Real estate | 2026 |
| Delco Properties Limited | Real estate | 2020 |
| Delco Transport Limited | Transport & logistics | 2022 |
| Delhouse Ltd | Real estate | 2020 |
| Deliver 2 Logistics Limited | Transport & logistics | 2019 |
| DELIVER4ALL Limited | Administrative & support | 2019 |
| Delivering Courier Ltd | Transport & logistics | 2025 |
| DELIVERYWORKS4U Limited | Transport & logistics | 2025 |
| Delph Brow Flats Management Limited | Households | 2002 |
| Delpian Properties Ltd | Real estate | 2024 |
| Delta Clean North Ltd | Administrative & support | 2012 |
| Delta Human Resource Consulting Ltd. | Professional & scientific | 2009 |
| Deluxe Car Valeting Ltd | Wholesale & retail | 2019 |
| Delves HX Ltd | Real estate | 2024 |
| Dencort Fare Ltd | Wholesale & retail | 2025 |
| Denholt Holdings Limited | Manufacturing | 2021 |
| Denise Breen-Lawton Limited | Professional & scientific | 2015 |
| Denroyd Limited | Other services | 1982 |
| Dent-Oral Healthcare Ltd | Health & social care | 2026 |
| Dental Smile Ortholab Limited | Health & social care | 2003 |
| Derm Co Ltd | Construction | 2026 |
| Derma YOU Ltd | Health & social care | 2023 |
| Dermknutsford Ltd | Health & social care | 2022 |
| Derwent House Residents Association Limited | Real estate | 1993 |
| Derwent WYE Ltd | Wholesale & retail | 2024 |
| Designer Projects Limited | Extraterritorial | 2024 |
| Designer Skin 2 Ltd | Other services | 2024 |
| Destination Media Limited | Information & communication | 2018 |
| Detroit Pizza Group Ltd | Hospitality | 2024 |
| Developer Ltd | Information & communication | 2019 |
| Developments by Eden Limited | Construction | 2020 |
| Devise Construction & Solutions Limited | Construction | 2017 |
| Devonshire Devere Ltd | Information & communication | 2024 |
| Dezirable Laminate Flooring Limited | Construction | 2022 |
| DG Leisure Ltd | Education | 2016 |
| DGC Admin Limited | Professional & scientific | 2011 |
| DGC Africa Ltd | Professional & scientific | 2023 |
| Dghgv Ltd | Transport & logistics | 2019 |
| Dheeraj Chaudhary Consulting Ltd | Professional & scientific | 2018 |
| Diagon Aluminium (Windows, Doors & Bifolds) Ltd | Manufacturing | 2024 |
| Diamond Composite Doors Ltd | Construction | 2025 |
| Diamond Developments Halifax Ltd | Construction | 2025 |
| Diamond Specialist Cars Limited | Wholesale & retail | 2025 |
| Didbear Ltd | Other services | 2019 |
| Die-Namic Formes Ltd | Manufacturing | 2002 |
| Diehl Metering Limited | Wholesale & retail | 1989 |
| Diesel Drop Limited | Professional & scientific | 2021 |
| Differential Portfolio Ltd | Professional & scientific | 2024 |
| Digital Renovators Ltd | Wholesale & retail | 2012 |
| Digital Sword Limited | Information & communication | 2026 |
| Digital World 4 U Ltd | Wholesale & retail | 2024 |
| Dilara Cafe Bistro Ltd | Hospitality | 2025 |
| DIM2025 Ltd | Transport & logistics | 2025 |
| Dimension Finishes Ltd | Other services | 2017 |
| Dimestar Limited | Wholesale & retail | 2024 |
| DIN & Associates Ltd | Professional & scientific | 2016 |
| Dines Installations Ltd | Construction | 2020 |
| Dines Properties Ltd | Real estate | 2022 |
| Dinsdale Logistics Limited | Transport & logistics | 2021 |
| Diode Asset Management Ltd | Real estate | 2026 |
| Dipper Environmental Services Limited | Professional & scientific | 2023 |
| Direct 2 EWE Ltd | Agriculture & fishing | 2018 |
| Direct Auto Electrics Ltd | Wholesale & retail | 2019 |
| Direct Kitchen Hire Ltd | Administrative & support | 2026 |
| Direct Laundry & Steam Installations Ltd | Administrative & support | 2015 |
| Direct Valuation Solutions Ltd | Real estate | 2017 |
| Disability Roadmap Community Interest Company | Professional & scientific | 2022 |
| Discount Fireplaces Ltd | Wholesale & retail | 2010 |
| Discount Shipping Limited | Transport & logistics | 2017 |
| Discount Square Limited | Wholesale & retail | 2021 |
| Discount Tyre Deals Limited | Wholesale & retail | 2025 |
| Disha Consulting Ltd | Information & communication | 2023 |
| Dispensary Walk Flat Management Company Limited | Households | 2018 |
| Display Worx North Limited | Construction | 2019 |
| Disscount Mart Ltd | Wholesale & retail | 2024 |
| Distinct Coffee Ltd | Manufacturing | 2023 |
| Distinctive Homes (Yorkshire) Ltd | Construction | 2017 |
| Distinctive Plastering Services Ltd | Construction | 2023 |