| Dcnorth Drywall Ltd | Professional & scientific | 2025 |
| DCS Window Cleaning Services Ltd | Administrative & support | 2023 |
| DCX Groundworks & Demolition Ltd | Construction | 2017 |
| DD Estate Solutions Ltd | Real estate | 2025 |
| DD Property Development NW Ltd | Real estate | 2019 |
| DD Square Ltd | Professional & scientific | 2012 |
| DDA (Elite) Ltd | Education | 2025 |
| Ddataverbs Ltd | Information & communication | 2022 |
| DDB Enterprises Limited | Transport & logistics | 2002 |
| DDE Consulting Limited | Professional & scientific | 2024 |
| DDE Group Holdings Ltd | Financial services | 2026 |
| Ddfp Fire + Security Ltd | Administrative & support | 2018 |
| DDS Computer Services Ltd | Other services | 2011 |
| Ddshe Vape Ltd | Wholesale & retail | 2026 |
| DE Feast Ltd | Manufacturing | 2026 |
| DE Pickervance & Sons Ltd | Agriculture & fishing | 2013 |
| DE Tabley Management Company Limited | Households | 2012 |
| DE Valeting Ltd | Other services | 2012 |
| Deabora Aine 66 Bailey Ltd | Wholesale & retail | 2025 |
| Deadeye Detailing Distribution Limited | Wholesale & retail | 2019 |
| Deadwood Smokehouse 3 Ltd | Hospitality | 2019 |
| Deafway | Health & social care | 2001 |
| Deal Price UK Ltd | Wholesale & retail | 2025 |
| Dealsyourchoice Ltd | Wholesale & retail | 2025 |
| Dean Mcgarry & SON Joinery and Building Ltd | Construction | 2026 |
| Dean Property Management Limited | Real estate | 2025 |
| Deane's Fast Food Ltd | Hospitality | 2019 |
| Deans Bakery Limited | Hospitality | 2013 |
| Dearden Formwork & Steelfixing Limited | Wholesale & retail | 1997 |
| Decarb IT Limited | Hospitality | 2016 |
| Decca Distribution Limited | Manufacturing | 2018 |
| Decca Holdings Limited | Real estate | 1998 |
| Decca Plastics Limited | Manufacturing | 1977 |
| Deccan Spice Ltd | Hospitality | 2024 |
| December Sutton Limited | Professional & scientific | 2021 |
| December Sutton Two Limited | Other services | 2023 |
| Deck Investments Limited | Financial services | 2025 |
| Decor Design Limited | Other services | 2012 |
| Decor Paint North West Limited | Construction | 2021 |
| Decorating Sundries Limited | Wholesale & retail | 2025 |
| Decoris Limited | Wholesale & retail | 2024 |
| Decree Holdings Ltd | Construction | 2025 |
| Dectec Limited | Wholesale & retail | 2010 |
| DEE Krish Medical Ltd | Health & social care | 2022 |
| Deeclean Services Ltd | Administrative & support | 2023 |
| Deed NOT Breed | Information & communication | 2007 |
| Deeds NOT Words (Preston) Limited | Manufacturing | 2022 |
| Deep Clough Farm Limited | Agriculture & fishing | 2023 |
| Deep Node Limited | Information & communication | 2021 |
| Deep Sea Space Limited | Extraterritorial | 2021 |
| Deepdale Asset Management Ltd | Professional & scientific | 2024 |
| Deepdale Bazaar Limited | Wholesale & retail | 2024 |
| Deepdale Estates (Lancs) Ltd | Real estate | 2020 |
| Deepdale Foods Ltd | Hospitality | 2025 |
| Deepdale Motor Company (Holdings) Limited | Financial services | 2019 |
| Deepdale Motor Company Limited | Administrative & support | 2002 |
| Deepdale PNE Holdings Limited | Professional & scientific | 2010 |
| Deepdale Service Station Limited | Wholesale & retail | 2011 |
| Deepdale Tandoori Ltd | Hospitality | 2023 |
| Deepdale Tyres & Auto Centre Limited | Wholesale & retail | 2011 |
| Deepfinity Ltd | Information & communication | 2016 |
| Deeprish Enterprise Ltd | Health & social care | 2022 |
| Deepsea Solutions Ltd | Mining & quarrying | 2024 |
| Deepytics Ltd | Information & communication | 2019 |
| Deer Circle Consultancy Ltd | Professional & scientific | 2026 |
| Deeside Regeneration Limited | Construction | 2018 |
| Defend Solutions Ltd | Education | 2014 |
| Definitive Epos Solutions Limited | Wholesale & retail | 2011 |
| Definitive Software Developments Limited | Information & communication | 2012 |
| Defyne Aesthetics Limited | Other services | 2014 |
| Dehan & Co Ltd | Wholesale & retail | 2019 |
| DEL Tarpaulins Limited | Manufacturing | 2006 |
| Delage ET CIE Limited | Extraterritorial | 2000 |
| Delaney Travel Limited | Administrative & support | 2002 |
| Delhi 8 Limited | Hospitality | 2026 |
| Deli Delicious Lush Ltd | Hospitality | 2023 |
| Delice Desserts Curbside Preston Ltd | Wholesale & retail | 2026 |
| Delivered 2 U NW Ltd | Hospitality | 2025 |
| Delivery Focused Limited | Information & communication | 2021 |
| Delphic Investments Limited | Real estate | 2016 |
| Delta (RP) Holdings Ltd | Real estate | 2005 |
| Delta Care Group Limited | Financial services | 2023 |
| Delta Care Ltd | Administrative & support | 1996 |
| Delta Fire Engineering Ltd | Professional & scientific | 2022 |
| Delta Fire Training Ltd | Education | 2024 |
| Delta North Transport Ltd | Administrative & support | 2025 |
| Delta Research and Development Ltd | Professional & scientific | 2024 |
| Deltapark 2 Limited | Real estate | 1996 |
| Deltic Business Solutions Ltd | Professional & scientific | 2022 |
| Delton Hotel SPV Ltd | Hospitality | 2021 |
| Delton Training Services Limited | Administrative & support | 1996 |
| Deluxe Pixel Limited | Information & communication | 2019 |
| Deluxe Resin Group Ltd | Construction | 2026 |
| Deluxee Living Limited | Manufacturing | 2026 |
| Deluxelivinglimited@Gmail.Com Limited | Manufacturing | 2026 |
| Demon Wheels Ltd | Wholesale & retail | 2014 |
| Demure Clothing Limited | Wholesale & retail | 2025 |
| Denaxe Limited | Arts & recreation | 1985 |
| Denbigh and Brown Limited | Hospitality | 2018 |
| Dendi-Padala Limited | Information & communication | 2015 |