| Design and Management Consultants Ltd | Professional & scientific | 2024 |
| Design Candy Limited | Other services | 2019 |
| Design Consultants Ltd | Administrative & support | 2007 |
| Design Geometrics Limited | Professional & scientific | 2000 |
| Design Hub 49 Ltd | Wholesale & retail | 2023 |
| Design Model Build Ltd | Administrative & support | 2023 |
| Design Your Lifestyle (Warrington) Ltd | Wholesale & retail | 2011 |
| Designer Spaces Ltd | Construction | 2017 |
| Designhaus Consulting Engineers Limited | Professional & scientific | 2017 |
| Desk 360 Ltd | Construction | 2016 |
| Destiny Asia Tours Limited | Administrative & support | 2021 |
| Detail Haus Ltd | Administrative & support | 2024 |
| Detailed I Ltd | Administrative & support | 2025 |
| Detour Spirits Limited | Wholesale & retail | 2021 |
| Detroit FS (Elite) Limited | Financial services | 2016 |
| Deuce Hotels Ltd | Hospitality | 2022 |
| DEV IT Consultancy Ltd | Information & communication | 2021 |
| DEV42 Limited | Information & communication | 2020 |
| Deva TAP Company Limited | Other services | 1986 |
| Devan Kotze Limited | Professional & scientific | 2017 |
| Devana Control & Safety Limited | Administrative & support | 2014 |
| Develer Limited | Information & communication | 2015 |
| Develer Properties Limited | Real estate | 2021 |
| Developing Leaders Ltd | Administrative & support | 2015 |
| Devery & O`Halloran Limited | Manufacturing | 2006 |
| Devika Wood Ltd | Professional & scientific | 2025 |
| Devize Consulting Limited | Administrative & support | 2019 |
| Devo NW Limited | Hospitality | 2022 |
| Devon House Developments Limited | Construction | 1988 |
| Devon Thayer Consulting Limited | Other services | 2017 |
| Devops Digital Solutions Limited | Information & communication | 2024 |
| Devzen Solutions Ltd | Information & communication | 2024 |
| DEW Piling Limited | Extraterritorial | 2006 |
| Dewar Engineering & Earthing Services Limited | Administrative & support | 2023 |
| Dewell Brickwork Ltd | Construction | 2025 |
| Dews Environmental Health Solutions Ltd | Professional & scientific | 2023 |
| DEX Engineering Ltd | Administrative & support | 2025 |
| Dexson Limited | Administrative & support | 2025 |
| Dextec Limited | Administrative & support | 2025 |
| Dexter Engineering Consultancy Limited | Professional & scientific | 2007 |
| Deys Systems Limited | Administrative & support | 2014 |
| DF Property (Culcheth) Ltd | Real estate | 2013 |
| DFN Embroidery Limited | Wholesale & retail | 2010 |
| DFP Management Ltd | Administrative & support | 2025 |
| DG ESS Limited | Professional & scientific | 2013 |
| DG Neale Construction Services Limited | Professional & scientific | 2015 |
| DG Properties Services Ltd | Real estate | 2025 |
| DG Windows Prescot Limited | Construction | 2020 |
| DGB188 Limited | Administrative & support | 2024 |
| DGC Motor Co. Ltd | Wholesale & retail | 2001 |
| Dgds Consultancy Ltd | Administrative & support | 2022 |
| DGF Electrical Wholesalers Ltd | Wholesale & retail | 2003 |
| DGH Independent Consultants Ltd | Other services | 2021 |
| DGM Trans Ltd | Transport & logistics | 2016 |
| DGT Project Services Ltd | Administrative & support | 2022 |
| DH Data Solutions Ltd | Administrative & support | 2025 |
| DH Design Engineering Ltd | Professional & scientific | 2022 |
| DH Engineering Limited | Administrative & support | 2024 |
| DH Projects Ltd | Construction | 2021 |
| DH Safety Consultants Limited | Public administration | 2026 |
| DH Software Services Ltd | Information & communication | 2019 |
| DH1 Engineering Ltd | Professional & scientific | 2022 |
| DH3 Consulting Limited | Professional & scientific | 2018 |
| Dharan Aviation Limited | Administrative & support | 2025 |
| Dhaviland Ltd | Administrative & support | 2007 |
| DHE Consultancy Services Limited | Administrative & support | 2019 |
| DHG UK Life Science Ltd | Extraterritorial | 2017 |
| Dhillon (NW) Limited | Health & social care | 2021 |
| Dhillon's Homes Ltd | Real estate | 2024 |
| Dhilvani Limited | Wholesale & retail | 2018 |
| DHM Commercial Limited | Professional & scientific | 2026 |
| Dhrl Limited | Real estate | 2018 |
| Dhserv Limited | Administrative & support | 2016 |
| DHW Engineering Limited | Administrative & support | 2016 |
| DI Vinci Lighting Limited | Construction | 2019 |
| Diabetic Foot Integrated Care Limited | Health & social care | 2019 |
| Diamaint Ltd | Professional & scientific | 2024 |
| Diamond ARC Properties Limited | Real estate | 2022 |
| Diamond Developments and Lettings Limited | Real estate | 2020 |
| Diamond Executive Accommodation Ltd | Real estate | 2022 |
| Diamond Health Consultancy Limited | Other services | 2015 |
| Diamond Helicentre Limited | Manufacturing | 2007 |
| Diamond Learning Solutions Ltd | Information & communication | 2012 |
| Diamond National Limited | Transport & logistics | 2025 |
| Diamond Protection & Security Limited | Administrative & support | 2026 |
| Diamond Scaffolding & Access Limited | Construction | 2015 |
| Diamond Travel Warrington Ltd | Transport & logistics | 2025 |
| Diamond Trucks UK Limited | Wholesale & retail | 2021 |
| Diamond { Manchester } Logistics Ltd | Transport & logistics | 2023 |
| Diane Johnson Costs Lawyer Limited | Professional & scientific | 2012 |
| Diane Nicol Limited | Administrative & support | 2025 |
| Diane Swain Ltd | Information & communication | 2022 |
| Dickinson's Place Ltd | Hospitality | 2024 |
| Diem Fiscal Limited | Administrative & support | 2022 |
| Diesel Cuts Ltd | Other services | 2023 |
| Differential DOC Ltd | Health & social care | 2025 |
| Diffferent Bathrooms Ltd | Professional & scientific | 2024 |
| Digby PM Ltd | Professional & scientific | 2023 |
| Digger Welding Ltd | Construction | 2008 |
| Diggle & Co Holdings Ltd | Construction | 2025 |