| Dastimer Ltd | Other services | 2020 |
| Data and Technology Services Limited | Information & communication | 2018 |
| Data Smaart Consulting Ltd | Information & communication | 2018 |
| Datalex Communications Limited | Other services | 2022 |
| Datalogic Automation, Inc. | | 2015 |
| Datasquad Ltd | Information & communication | 2022 |
| Datura Heelix Ltd | Wholesale & retail | 2026 |
| Dave Muddell Transport Ltd. | Transport & logistics | 2002 |
| Dave Shade Ltd | Manufacturing | 2012 |
| Dave Williams Coaching Limited | Professional & scientific | 2026 |
| Dave Wilson Automotive Ltd | Wholesale & retail | 2022 |
| Davenhill Ltd | Transport & logistics | 2015 |
| Davenport Capital and Estates Limited | Real estate | 2025 |
| Davenport Machine Specialists Ltd | Professional & scientific | 2024 |
| Daventech Limited | Manufacturing | 2003 |
| David Brown Consultants Limited | Professional & scientific | 2009 |
| David Car Services Ltd | Other services | 2020 |
| David L. J. Howell Ltd. | Information & communication | 2011 |
| David Newbrook Accountancy Services Ltd | Professional & scientific | 2013 |
| David Newman Associates Ltd | Professional & scientific | 2016 |
| David Udale Ltd | Agriculture & fishing | 2009 |
| Davies Heritage Estates Limited | Real estate | 2016 |
| Davies Home Improvements Ltd | Construction | 2014 |
| Davies Investment Group Limited | Financial services | 2017 |
| Davis Holmes Developments Ltd | Construction | 2025 |
| Davison Forklift Limited | Manufacturing | 1977 |
| Davnest Construction Limited | Construction | 2021 |
| Davtek Installations Ltd | Construction | 2025 |
| Dawley Architectural Limited | Professional & scientific | 2017 |
| Dawley Dental Practice Ltd | Health & social care | 2008 |
| Dawley Holdings Ltd | Professional & scientific | 2015 |
| Dawley House Limited | Hospitality | 2024 |
| Dawley Pubs Ltd | Hospitality | 2022 |
| Dawley Social Club Community Interest Company | Hospitality | 2025 |
| Dawley Town Hall C.I.C. | Public administration | 2017 |
| DAX Property Cleaning Ltd | Administrative & support | 2015 |
| Daylite Building Plastics Limited | Wholesale & retail | 2012 |
| Daylite Building Solutions Limited | Administrative & support | 2012 |
| Daylite Group Ltd | Financial services | 2024 |
| Daylite Windows Limited | Wholesale & retail | 2012 |
| Days New Homes Limited | Construction | 1986 |
| DB Computing Limited | Other services | 2018 |
| DB Hygiene Consultancy Limited | Professional & scientific | 2024 |
| DBK Catering Ltd | Hospitality | 2026 |
| DC Global Ventures Ltd | Wholesale & retail | 2026 |
| DC Green Ltd | Professional & scientific | 2025 |
| DCD Electrical Limited | Construction | 2021 |
| Dclp Consultants Limited | Professional & scientific | 2018 |
| DD L1 Limited | Financial services | 2023 |
| DDA Compliance (UK) Limited | Manufacturing | 2019 |
| Ddm&D Ltd | Information & communication | 2017 |
| Ddmd Properties Ltd | Real estate | 2022 |
| Ddproperty Ltd | Real estate | 2024 |
| Ddteck Ltd | Wholesale & retail | 2019 |
| DE Facto 2176 | Households | 2015 |
| DE Publications Limited | Information & communication | 2012 |
| Deacon Hawk Technologies Limited | Information & communication | 2011 |
| Deaddd Printing Ltd | Manufacturing | 2025 |
| Deaf N Able C.I.C. | Education | 2019 |
| Deakin Communications Limited | Professional & scientific | 2022 |
| Dealrogs Ltd | Wholesale & retail | 2021 |
| Dean Craven Properties Limited | Real estate | 2026 |
| Deblec Control Systems Ltd | Manufacturing | 2018 |
| Debt Enforcement and Collection Limited | Administrative & support | 2019 |
| Decern Ltd | Education | 2025 |
| Decirev Ltd | Other services | 2020 |
| Deco Acquisitions Limited | Manufacturing | 2009 |
| Decorlight Limited | Manufacturing | 2001 |
| Deekk Build Solutions Ltd | Construction | 2026 |
| Defenseclever Ltd | Professional & scientific | 2023 |
| Deffo Digital Ltd | Information & communication | 2022 |
| Defined Detail Ltd | Wholesale & retail | 2015 |
| Dekimo Ltd | Real estate | 2026 |
| Delamere Motors Ltd | Wholesale & retail | 1999 |
| Delanys Ltd | Other services | 2020 |
| Delilah Care Ltd | Health & social care | 2025 |
| Delivery on Time Ltd | Wholesale & retail | 2020 |
| Delsenmax Ltd | Health & social care | 2017 |
| Delta Blue Consultants Ltd | Professional & scientific | 2016 |
| Delta Building and Maintenance Limited | Construction | 2020 |
| Demidaz Ltd | Administrative & support | 2019 |
| Denisimo Ltd | Transport & logistics | 2016 |
| Dentalski Limited | Health & social care | 2013 |
| Dentol Ltd | Transport & logistics | 2019 |
| Dermacore Limited | Other services | 2019 |
| Dermamedics Limited | Health & social care | 2021 |
| Dermir Ltd | Other services | 2020 |
| Desai Limited | Information & communication | 2022 |
| Design 2 Manufacture Ltd. | Manufacturing | 2008 |
| Design 4 Structures Holdings Limited | Information & communication | 2012 |
| Design 4 Structures Limited | Professional & scientific | 1992 |
| Design Forum Limited | Construction | 2010 |
| Designer Flooring Shropshire Ltd | Construction | 2025 |
| Designer Jacks Ltd | Wholesale & retail | 2026 |
| DESISLAVA2014 Ltd | Transport & logistics | 2024 |
| Deskside IT Ltd | Information & communication | 2018 |
| Desktec Ltd | Other services | 2018 |
| Desseyon Services Ltd | Health & social care | 2019 |
| Destiny Business Consultancy Services Ltd. | Professional & scientific | 2018 |
| Destiny Cars Ltd | Administrative & support | 2023 |