| Davrod Limited | Real estate | 2025 |
| Dawaran Elestad Medical Ltd | Health & social care | 2023 |
| Dawax Ltd | Real estate | 2023 |
| Dawid Services Ltd | Construction | 2016 |
| Dawlish Properties(B'Ham)Limited | Real estate | 1965 |
| Dawn Marie Holland Limited | Other services | 2009 |
| Dawnes Pantry Ltd | Hospitality | 2024 |
| Dawny's Daycare Ltd | Education | 2012 |
| Dawson Beauty Lounge Ltd | Wholesale & retail | 2026 |
| Day One IT Solutions Ltd | Information & communication | 2014 |
| Daykin Developments Ltd | Real estate | 2024 |
| Daykin Investments Ltd | Real estate | 2024 |
| Daykin Ltd | Hospitality | 2017 |
| Daylong Limited | Extraterritorial | 2007 |
| Daynight Delivers and Travels Ltd | Administrative & support | 2024 |
| Dayz Vanilla+ Ltd | Other services | 2026 |
| Dazzling Fresh Limited | Administrative & support | 2025 |
| DB Joinery & Building Services Limited | Construction | 2019 |
| DB Property & Gardens Ltd | Real estate | 2025 |
| DB Tailings Consultants Limited | Professional & scientific | 2023 |
| DB Tech Stack Limited | Information & communication | 2013 |
| DBC Academies Limited | Education | 2016 |
| Dbnr Ltd | Real estate | 2025 |
| DBS Building & Joinery Limited | Construction | 2026 |
| Dbsecure Ltd | Administrative & support | 2022 |
| DC Aquapro Services Limited | Administrative & support | 2025 |
| DC Consultancy Services Ltd | Professional & scientific | 2025 |
| DC Establishments Limited | Other services | 2020 |
| DC Events Catering Ltd | Hospitality | 2024 |
| DC Property Investments Limited | Real estate | 2012 |
| DC Property Portfolio Ltd | Real estate | 2025 |
| DC Restaurants Group Ltd | Hospitality | 2026 |
| DC Scott Ltd | Real estate | 2021 |
| Dcal Properties Ltd | Real estate | 2025 |
| DCB Consult & Build Ltd | Professional & scientific | 2008 |
| DCB Roofing Limited | Construction | 2019 |
| DCD Facades Ltd | Construction | 2014 |
| DCG Services Limited | Information & communication | 2001 |
| Dcjd Property Ltd | Real estate | 2026 |
| Dclarc Ltd | Hospitality | 2024 |
| Dcmg Holdings Ltd | Real estate | 2026 |
| DCR Mechanical Services Ltd | Construction | 2014 |
| DCS Property Ltd | Real estate | 2016 |
| Dd&Wm Limited | Transport & logistics | 2022 |
| DDA Enterprise Limited | Wholesale & retail | 2026 |
| DDA Property Investments Ltd | Real estate | 2024 |
| DDC Burton Training Limited | Wholesale & retail | 2024 |
| DDF Autos Ltd | Wholesale & retail | 2024 |
| DDH Ltd | Other services | 2018 |
| Ddivallconsulting Limited | Transport & logistics | 2019 |
| Ddlp Limited | Hospitality | 2019 |
| DE Derby Limited | Hospitality | 2021 |
| DE Laurels Medicals Limited | Health & social care | 2022 |
| DE Pole Enterprises Ltd | Professional & scientific | 2019 |
| DE Vehicles Ltd | Other services | 2018 |
| DE Vere Holdings Limited | Financial services | 2017 |
| DE Ville Interiors Limited | Manufacturing | 2012 |
| DE1 Bars Ltd | Other services | 2018 |
| DE1 Cutz Ltd | Other services | 2025 |
| DE1 Old Road Limited | Wholesale & retail | 2026 |
| DE1 Store Limited | Wholesale & retail | 2026 |
| DE1NE Ltd | Construction | 2025 |
| Deaf Insight Reflect Art Therapy Ltd | Health & social care | 2026 |
| Deaf Matters Ltd | Other services | 2011 |
| Deafinitely Supportive Limited | Health & social care | 2017 |
| Deafinitely Together CIC | Health & social care | 2026 |
| Dealya Ltd | Wholesale & retail | 2026 |
| Dean Bassford Construction Management Ltd | Construction | 2014 |
| Dean Owen Developments Ltd | Real estate | 2026 |
| Dean's Five C'S Limited | Manufacturing | 2017 |
| Deana Limited | Transport & logistics | 2025 |
| Death & Taxes Investments Limited | Professional & scientific | 2022 |
| DEB Dispensing Limited | Manufacturing | 1965 |
| Debjam Properties Ltd | Real estate | 2026 |
| Debonair for MEN Limited | Wholesale & retail | 2015 |
| Debtco UK Solutions Limited | Administrative & support | 2020 |
| Decadent Flooring Ltd | Wholesale & retail | 2026 |
| Decaptains Ltd | Health & social care | 2024 |
| Decastro Consulting Limited | Professional & scientific | 2019 |
| Decisions by Design Limited | Professional & scientific | 2007 |
| Deckheads DJ Equipment Hire Ltd | Administrative & support | 2026 |
| DECOR8 Midlands Ltd | Construction | 2024 |
| Decospaces Ltd | Professional & scientific | 2025 |
| Decoupage Property Ltd | Real estate | 2025 |
| Dedicated Accountancy Network Limited | Professional & scientific | 2018 |
| Dedicated Software Systems Limited | Information & communication | 2010 |
| Dedici Ltd | Education | 2019 |
| Dedienne Aerospace UK Limited | Manufacturing | 2018 |
| DEE MAK Construction Ltd | Construction | 2026 |
| Deejo Ltd | Hospitality | 2024 |
| Deelicious Limited | Hospitality | 2016 |
| Deen Medical Limited | Health & social care | 2023 |
| Deepdigit Limited | Information & communication | 2024 |
| Deepwood Forestry Ltd | Agriculture & fishing | 2026 |
| Deer Park Residents Management Company Limited | Households | 2025 |
| Deeshaak Limited | Wholesale & retail | 2025 |
| Defence in Depth Secure Ltd | Information & communication | 2025 |
| Definite FIX Boyz Ltd | Wholesale & retail | 2024 |
| Definitive Insuretech Limited | Information & communication | 2018 |
| Defixo Limited | Information & communication | 2023 |