| Debun Cleaning Services Limited | Administrative & support | 2022 |
| Decma Powder Coaters Ltd | Professional & scientific | 2024 |
| Decma Powder Coatings Ltd | Manufacturing | 2024 |
| Decolonise the Curriculum Limited | Education | 2020 |
| Deecasa Ltd | Real estate | 2026 |
| Deera Services UK Ltd | Construction | 2017 |
| DEF - First Ltd | Administrative & support | 2015 |
| Deiama Ltd | Construction | 2020 |
| Delimake Limited | Health & social care | 2012 |
| Demake Limited | Real estate | 2012 |
| Dena Studioz CIC | Education | 2026 |
| Dependable Dwellings Limited | Real estate | 2022 |
| Desi Chatkazz Ltd | Hospitality | 2026 |
| DEU Gill & Co Property Development Ltd | Real estate | 2019 |
| Dewsbury & Proud Limited | Construction | 1977 |
| DGN Family Ltd | Wholesale & retail | 2024 |
| DGN Maintenance Ltd | Construction | 2026 |
| DGS Property Investments Ltd | Real estate | 2020 |
| Dhadwar Holdings Ltd | Real estate | 2022 |
| Dhaliwal & Co Property Development Ltd | Real estate | 2020 |
| Dhaliwal Freightways Ltd | Transport & logistics | 2020 |
| Dhaliwal Ltd | Transport & logistics | 2025 |
| Dheri Transport Ltd | Transport & logistics | 2017 |
| Dhillon Transport U.K Ltd | Transport & logistics | 2026 |
| Dhiman Services Limited | Transport & logistics | 2025 |
| Dhindsa Construction Ltd | Other services | 2014 |
| Dhir Fish and Chips Ltd | Hospitality | 2026 |
| Diamond Home Creations Ltd | Construction | 2021 |
| Diamond Liquid Screed Ltd | Construction | 2024 |
| Didata Limited | Extraterritorial | 1996 |
| Dinar Security Solutions Ltd | Administrative & support | 2026 |
| Direct Furniture Bilston Ltd | Wholesale & retail | 2025 |
| Direct Packaging Supplies Limited | Hospitality | 2016 |
| Direct Personnel Resourcing Limited | Administrative & support | 2018 |
| DIRECT-2U Footwear Limited | Wholesale & retail | 2008 |
| Diversity Music Limited | Education | 2009 |
| Divine Beauty by Mandy Ltd | Other services | 2025 |
| Dizf Traders Limited | Wholesale & retail | 2025 |
| DJL Contracting & Analytics Limited | Professional & scientific | 2016 |
| DJM Mehta Limited | Transport & logistics | 2025 |
| DJP - Testing Service Ltd. | Professional & scientific | 2018 |
| Djsm Ltd | Financial services | 2023 |
| DK Grab Works Ltd | Construction | 2023 |
| DK Tanning Ltd | Other services | 2025 |
| DKK Holdings Limited | Households | 2021 |
| DKK Supplies UK Limited | Manufacturing | 2019 |
| Dkusp Enterprise Ltd | Real estate | 2020 |
| DM Fast Logistics Ltd | Transport & logistics | 2026 |
| DM Optix Ltd | Wholesale & retail | 2023 |
| DMA Impex Ltd | Wholesale & retail | 2026 |
| DMC Team Ltd | Administrative & support | 2015 |
| Dniquecake Ltd | Hospitality | 2025 |
| Doaba Ltd | Transport & logistics | 2019 |
| Doctor DPF Limited | Manufacturing | 2016 |
| Doghead PUB Company Limited | Hospitality | 2017 |
| Dolman Motor Services Limited | Wholesale & retail | 1998 |
| Domestic & General Heating Limited | Construction | 2009 |
| Dominion Plumbing Supplies Limited | Professional & scientific | 1997 |
| Dornal House Healthcare Ltd | Health & social care | 2024 |
| Doru Construct Ltd | Construction | 2025 |
| Douglas Baker Holdings Limited | Manufacturing | 2023 |
| Douglas Baker Plastics Limited | Financial services | 2023 |
| DP France Property Limited | Real estate | 2021 |
| Draincare Technology Limited | Water & waste | 1999 |
| Drains 4U Limited | Administrative & support | 2017 |
| Dream Auto Sales Ltd | Wholesale & retail | 2025 |
| Dream to Build Limited | Construction | 2025 |
| DS GAS and Electric Limited | Construction | 2020 |
| Dsev Ltd | Health & social care | 2023 |
| DSG Couriers Ltd | Transport & logistics | 2023 |
| DSR Training & Lifting Services Limited | Professional & scientific | 2022 |
| DT Maintenance Services Ltd | Manufacturing | 2024 |
| DTS Healthcare Group Ltd | Health & social care | 2023 |
| Dudley Hardware and Home Ltd | Wholesale & retail | 2025 |
| Dudley Home and Hardware Ltd | Wholesale & retail | 2021 |
| Duvell UK Ltd | Real estate | 2023 |
| Dynamic Deals Limited | Wholesale & retail | 2013 |
| DZD Associates Limited | Professional & scientific | 2021 |
| E&A Accountancy Services Ltd | Professional & scientific | 2015 |
| E-Commerce Retail Therapy Ltd | Wholesale & retail | 2023 |
| E3MW Ltd | Transport & logistics | 2023 |
| Eachus Property Management Ltd | Households | 2021 |
| EAS Associates Ltd | Professional & scientific | 2025 |
| EAS Cleaning Services Ltd | Administrative & support | 2025 |
| East India Trading Co 1998 Limited | Real estate | 1998 |
| Eastern Properties (Midlands) Limited | Administrative & support | 2005 |
| Eastflow Ltd | Wholesale & retail | 2025 |
| Ebechu Limited | Health & social care | 2022 |
| EBU Afro Decor Ltd | Wholesale & retail | 2025 |
| Eclipse General Trading Ltd | Wholesale & retail | 2025 |
| Eco-Green Group Limited | Administrative & support | 2026 |
| Ecofleet Solutions International Ltd | Wholesale & retail | 2025 |
| Ecomod Ltd | Construction | 2009 |
| Ecotex Contracts Limited | Construction | 2008 |
| Ecotex Holdings Limited | Financial services | 2024 |
| Edge Waste Management and Skip Hire Ltd | Water & waste | 2026 |
| EDM Business Services Holdings Limited | Extraterritorial | 2011 |
| EDM Group (Holdings) Limited | Financial services | 2003 |
| EDM Group Limited | Information & communication | 1974 |
| EDM Insurance Services Limited | Extraterritorial | 2011 |