| Diamond Developments (Yorkshire) Limited | Construction | 2022 |
| Diamond Properties Management Ltd | Real estate | 2024 |
| Diamond Property Sourcing Ltd | Hospitality | 2025 |
| Diamonds Cafe Ltd | Hospitality | 2021 |
| Digital Hearing Care Solutions Ltd | Health & social care | 2005 |
| Digital Jasper Ltd | Extraterritorial | 2018 |
| Dignity Stairlifts Ltd | Extraterritorial | 2022 |
| DIN Halal Goat Meat Producers UK Limited | Wholesale & retail | 2026 |
| Dines-Allen Ltd | Professional & scientific | 2014 |
| Dinton Salvage & Liftech Hiab Hire Ltd | Water & waste | 2014 |
| Direct Claims Nationwide Ltd. | Financial services | 2010 |
| Direct Escalators Ltd | Construction | 2025 |
| Direct GAS Limited | Construction | 2021 |
| Direct Motors Keighley Ltd | Wholesale & retail | 2023 |
| Direct Tyre Services & MOT Centre Limited | Wholesale & retail | 2006 |
| Directform Plastics Limited | Manufacturing | 2002 |
| Discount Digger Ltd | Wholesale & retail | 2024 |
| Discover TAI CHI Ltd | Other services | 2023 |
| Distant Future Limited | Professional & scientific | 2009 |
| District Desserts Limited | Hospitality | 2025 |
| Diversiast Limited | Professional & scientific | 2026 |
| Divine Palate Dining Ltd | Manufacturing | 2024 |
| Dixon Hill Consulting Ltd | Professional & scientific | 2012 |
| DIY Keighley Ltd | Wholesale & retail | 2025 |
| DJA & PH Thompson Limited | Other services | 2021 |
| DJM Investors LLP | | 2018 |
| Dlec Electrical Solutions Ltd | Construction | 2021 |
| DLR Property Ltd | Administrative & support | 2017 |
| DM Accountancy & Tax Limited | Professional & scientific | 2022 |
| DML Print House Limited | Other services | 2000 |
| DMM Psychology Limited | Professional & scientific | 2008 |
| Dmprint Flooring Ltd | Wholesale & retail | 2024 |
| DMR Services Ltd | Transport & logistics | 2026 |
| Dnrw Property Limited | Real estate | 2026 |
| DO Project Services Ltd | Professional & scientific | 2023 |
| Dobsons Cooked Meats Limited | Wholesale & retail | 2003 |
| Docso Ltd | Health & social care | 2014 |
| Doherty Wealth Management Ltd | Financial services | 2013 |
| Dolce Ristorante Limited | Hospitality | 2014 |
| Dollie Daydreams Ltd | Manufacturing | 2025 |
| Dolphin Global Logistics Ltd | Administrative & support | 2014 |
| Dolphin Keswick Limited | Hospitality | 2021 |
| DON Montana Limited | Hospitality | 2025 |
| Doodlebugs CIC | Health & social care | 2026 |
| Door 2 Door Blinds Ltd | Wholesale & retail | 2024 |
| Door 2 Door Private Hire Limited | Transport & logistics | 2026 |
| Door Doctor 123 Limited | Other services | 2025 |
| Door Doctor West Yorkshire Limited | Other services | 2019 |
| Doorphysio Limited | Other services | 2026 |
| Dorset Taekwondo Limited | Education | 2021 |
| DOT and Frame Ltd | Manufacturing | 2025 |
| Double Jacket Arts Ltd | Arts & recreation | 2021 |
| Doughty Brooks Ltd | Wholesale & retail | 2020 |
| Dove Syke Limited | Agriculture & fishing | 2018 |
| DP & a Gallagher Properties Ltd | Households | 2019 |
| DR Security (Yorkshire) Limited | Other services | 2011 |
| Dract Consultancy Ltd | Households | 2021 |
| Draft Craft Limited | Wholesale & retail | 2020 |
| Drake Farms Limited | Agriculture & fishing | 2026 |
| DRB Consulting Ltd | Administrative & support | 2018 |
| Dream Cars for Life Ltd | Wholesale & retail | 2025 |
| Dressing Rooms Home Staging Ltd | Administrative & support | 2019 |
| DRIV3R Delivery Service Limited | Transport & logistics | 2022 |
| DRIV3R Fast Delivery Logistics Ltd | Transport & logistics | 2025 |
| DRIVA4HIRE Limited | Transport & logistics | 2023 |
| Drive Eco Cars Limited | Administrative & support | 2025 |
| Drleads Ltd | Professional & scientific | 2026 |
| Drob Vision North Limited | Professional & scientific | 2019 |
| Dromos Transport Ltd | Transport & logistics | 2019 |
| DRS Leisure Limited | Hospitality | 2023 |
| DSN Glazing & Building Limited | Construction | 2014 |
| DTS Facilities Management Limited | Administrative & support | 2016 |
| DUA Scents Ltd | Wholesale & retail | 2023 |
| Duarte & Baker Ltd | Professional & scientific | 2007 |
| Duggan Site Services Limited | Construction | 2014 |
| Dunhills Innovative Projects Ltd | Real estate | 2025 |
| Duranta Consulting Ltd | Extraterritorial | 2018 |
| Duree Properties LLP | | 2017 |
| DWC Capital Ltd | Real estate | 2013 |
| Dynamic Response (Noise and Vibration Consultants) Limited | Professional & scientific | 2017 |
| Dynamic Response Acoustic and Industrial Supplies Limited | Professional & scientific | 2018 |
| Dynamic Response Limited | Construction | 2023 |
| Dysomettrick Limited | Wholesale & retail | 2008 |
| Dzain Limited | Other services | 2017 |
| E & P Property Solutions Ltd | Real estate | 2025 |
| E & S Feeds Ltd | Manufacturing | 2019 |
| E Dobson & Company (Gaskets) Limited | Manufacturing | 1963 |
| E Dobson & Company Holdings Limited | Professional & scientific | 2017 |
| E Dobson & Company Property Limited | Professional & scientific | 2017 |
| E P Transport (Yorkshire) Limited | Extraterritorial | 2009 |
| E V Select Ltd | Wholesale & retail | 2026 |
| E.M. Farming & Leisure Limited | Arts & recreation | 2015 |
| E7 Electrical Services (7 Group) Limited | Construction | 2018 |
| Eagle AS Ltd | Wholesale & retail | 2019 |
| Eagle Safety Associates Ltd | Administrative & support | 2010 |
| Eagle Translations Limited | Professional & scientific | 2013 |
| Earby Drink Merchants Limited | Wholesale & retail | 2016 |
| Easicall Limited | Construction | 2016 |
| East Park Harrogate Limited | Real estate | 2021 |
| Eastburn Pine Limited | Manufacturing | 2000 |