| DC Economics Limited | Professional & scientific | 2025 |
| DC Electrical (Northwest) Limited | Construction | 2013 |
| DC Electrical Oldham Limited | Construction | 2014 |
| DC Installation & Maintenance Limited | Administrative & support | 2016 |
| DC Parts Limited | Wholesale & retail | 2019 |
| DC Rentals Ltd | Real estate | 2025 |
| DC Tech Software Ltd | Information & communication | 2022 |
| DC Venture Holdings Limited | Real estate | 2021 |
| DCG Building Services Limited | Construction | 2018 |
| DCG Property Developments Ltd | Real estate | 2020 |
| DCH Joinery Ltd | Construction | 2026 |
| Dcinnocent Consulting Limited | Professional & scientific | 2022 |
| DCL Shipping Ltd | Wholesale & retail | 2019 |
| DCS Property Holdings UK Ltd | Real estate | 2025 |
| DD Imaging Limited | Health & social care | 2026 |
| DD Property Group Ltd | Real estate | 2020 |
| DDA Projects (Residential) Ltd | Construction | 2021 |
| DDA Projects Ltd | Construction | 2019 |
| DDB Joinery Ltd | Construction | 2019 |
| DDG Transport Ltd | Transport & logistics | 2011 |
| DE Brook Property Ltd | Real estate | 2016 |
| DE LA RUE Consulting Services Limited | Administrative & support | 1997 |
| DE Manchy Group Ltd | Real estate | 2025 |
| DE Vape Ltd | Wholesale & retail | 2022 |
| Deakin Property Management Ltd | Households | 2020 |
| Deakin Taxis Ltd | Transport & logistics | 2011 |
| Dealerprint Manchester Limited | Information & communication | 2007 |
| Deals Junction Ltd | Wholesale & retail | 2016 |
| Deals Online Ltd | Wholesale & retail | 2024 |
| Dealshow Ltd | Professional & scientific | 2025 |
| Dealspark Ltd | Wholesale & retail | 2026 |
| Dean Digital Ltd | Wholesale & retail | 2024 |
| Deansgate News Ltd | Wholesale & retail | 2012 |
| Deanshut Trading Ltd | Professional & scientific | 2026 |
| Dearne Valley Engineering Limited | Extraterritorial | 2009 |
| Dears Traders Ltd | Wholesale & retail | 2024 |
| Deb's Management Limited | Real estate | 1999 |
| Debbie Clough Ltd | Administrative & support | 2018 |
| Debonair Care Ltd | Health & social care | 2024 |
| Debonair Oldham Limited | Wholesale & retail | 2025 |
| Debonair Schoolwear Limited | Wholesale & retail | 2026 |
| Debra Leeson Limited | Other services | 2007 |
| Debs Freehold Limited | Real estate | 2018 |
| Debt Advice Solutions Limited | Financial services | 2017 |
| Decco Tools Ltd | Wholesale & retail | 2021 |
| Deckbuild Ltd | Construction | 2007 |
| Deco Vinyl Wraps Ltd | Construction | 2026 |
| Decorative Agents.Com Limited | Wholesale & retail | 2022 |
| Decorus Training Academy Limited | Education | 2023 |
| Decorwright Limited | Construction | 2009 |
| DEE a Summers Ltd | Other services | 2019 |
| Deedee Ltd | Transport & logistics | 2019 |
| Deen Buy & Selling Ltd | Wholesale & retail | 2018 |
| Deep Drainage UK Ltd | Construction | 2024 |
| Deep Wake Capital Limited | Financial services | 2025 |
| Deeporax AI Ltd | Information & communication | 2026 |
| Dees Health Care Ltd | Health & social care | 2023 |
| Deezym Consultants Limited | Administrative & support | 2024 |
| Defiant LU Ltd | Wholesale & retail | 2025 |
| Degeorges Solutions Ltd | Wholesale & retail | 2023 |
| Delashh Aesthetics & Training Ltd | Other services | 2025 |
| Dele Ltd | Hospitality | 2023 |
| Delete-A-Dent Ltd | Wholesale & retail | 2004 |
| Delhi Street Spice Ltd | Hospitality | 2024 |
| Delight Lounge Limited | Hospitality | 2023 |
| Delph Station Management Company Limited | Real estate | 2004 |
| Delphdecor Ltd | Other services | 2025 |
| Delta Fulfillment Ltd | Other services | 2022 |
| Delta International Engineering Limited | Construction | 1991 |
| Delta Komp-Line UK Limited | Manufacturing | 2017 |
| Delta Pest Control Limited | Water & waste | 2011 |
| Delta Pro Innovations Limited | Other services | 2009 |
| Delta Roofing Sussex Ltd | Construction | 2022 |
| Delta Rooflines Ltd | Construction | 2023 |
| Delta Steeplejacks Limited | Construction | 1977 |
| Delta Vehicle Solutions (NW) Ltd | Wholesale & retail | 2019 |
| Deltareach (Specialist Services) Limited | Construction | 2019 |
| Deluxe Puppies Ltd | Agriculture & fishing | 2024 |
| Delve Saddleworth Ltd | Hospitality | 2024 |
| Dempsey Properties NW Ltd | Real estate | 2023 |
| Deni Healthcare Limited | Health & social care | 2024 |
| Denis Universal Construct Ltd | Construction | 2021 |
| Dent Progress Ltd | Health & social care | 2023 |
| Dent Tech Ltd | Wholesale & retail | 2012 |
| Derjan Holdings Limited | Real estate | 2024 |
| Derjan Limited | Real estate | 2024 |
| Dermiqa Ltd | Education | 2026 |
| Dermo-Aesthetics Ltd | Other services | 2026 |
| Desert Jewel Limited | Wholesale & retail | 1997 |
| Deshca 3K Ltd | Wholesale & retail | 2016 |
| Deshca Technology Limited | Information & communication | 2023 |
| Deshca Utilities Ltd | Transport & logistics | 2021 |
| Deshistani Limited | Arts & recreation | 2025 |
| Desi Cakes and Shakes Limited | Hospitality | 2017 |
| Desi Drapes Ltd | Wholesale & retail | 2024 |
| Desi Spot Ltd | Hospitality | 2023 |
| Desi Sweets & Treats Limited | Wholesale & retail | 2010 |
| Design 2 Distribution Services Ltd | Other services | 2019 |
| Design Cat Ltd. | Administrative & support | 2013 |
| DESIGN95 Limited | Professional & scientific | 2020 |