| Dajosa Consulting Ltd | Professional & scientific | 2026 |
| Dakota Property (UK) Ltd | Real estate | 2025 |
| Dalam Developments Ltd | Construction | 2024 |
| Dale House Solar Limited | Construction | 2025 |
| Dale Infrastructure Projects Ltd | Real estate | 2021 |
| Dale Lane (Appleton) Residents Association Limited | Households | 1989 |
| Dale Lane (Residents) Limited | Households | 1993 |
| Daled M. B. Ltd | Administrative & support | 2025 |
| Dallam Healthcare Ltd | Wholesale & retail | 2014 |
| Dalweb Limited | Administrative & support | 2008 |
| Dalziel Engineering Limited | Administrative & support | 2015 |
| DAM Infrastructure Limited | Other services | 2016 |
| DAM Nguyen Ltd | Professional & scientific | 2018 |
| Damazam Ltd | Professional & scientific | 2019 |
| Dampfixer Ltd | Construction | 2019 |
| Damrose Limited | Health & social care | 2014 |
| Damson Properties North West Limited | Hospitality | 2017 |
| DAN Consulting Limited | Information & communication | 2014 |
| DAN Cuzner Partitioning Limited | Construction | 2003 |
| DAN Haulage Ltd | Transport & logistics | 2025 |
| DAN Saville Project Management Solutions Limited | Administrative & support | 2020 |
| DAN Trans Service Ltd | Transport & logistics | 2017 |
| Dana Slts Limited | Professional & scientific | 2019 |
| Danam Developments Ltd | Construction | 2024 |
| Danbeks Limited | Information & communication | 2016 |
| Dancer Group Limited | Wholesale & retail | 2021 |
| Danci Ltd | Professional & scientific | 2026 |
| Dancing Dots Limited | Administrative & support | 2016 |
| Dancing Gecko Limited | Administrative & support | 2024 |
| Dandapher Holdings Limited | Real estate | 2000 |
| Dandex Residential Limited | Construction | 2026 |
| Dandy Electrical Services Ltd | Construction | 2022 |
| Danian Consulting Limited | Administrative & support | 2013 |
| Daniel Bacon Consultancy Ltd. | Professional & scientific | 2017 |
| Daniel Bate Limited | Real estate | 2019 |
| Daniel C Doran Consulting Ltd | Administrative & support | 2022 |
| Daniel Day Consulting Limited | Administrative & support | 2021 |
| Daniel's Removals Ltd | Transport & logistics | 2022 |
| Danlou Limited | Administrative & support | 2020 |
| Danny Barber Shop Limited | Other services | 2018 |
| Danny Joseph Allan Ltd | Other services | 2023 |
| Danspire Ltd | Administrative & support | 2025 |
| Dantom Production Solutions Limited | Manufacturing | 1996 |
| Daowen Ltd | Administrative & support | 2023 |
| DAP Metrology Ltd | Professional & scientific | 2024 |
| Daphne Tree Ltd | Hospitality | 2025 |
| DAR Projects Limited | Professional & scientific | 2017 |
| Darcy Alex Machine Fitting Ltd | Administrative & support | 2025 |
| Darcy Smith Resources Limited | Professional & scientific | 2004 |
| Daresbury Contracts Limited | Wholesale & retail | 2008 |
| Daresbury Dairy Farm Limited | Agriculture & fishing | 1991 |
| Daresbury Dairy Limited | Manufacturing | 2010 |
| Daresbury Dental Laboratory Limited | Health & social care | 2017 |
| Daresbury Management Consultants Ltd | Professional & scientific | 2021 |
| Daresbury Properties Limited | Agriculture & fishing | 1963 |
| Daresbury Proteins Ltd. | Professional & scientific | 2017 |
| Daresbury SIC (Pubsec) LLP | | 2010 |
| Daresbury SIC LLP | | 2010 |
| Darganfod Limited | Real estate | 2023 |
| Dark Cloud Solutions Limited | Information & communication | 2011 |
| Dark Knight Communications Limited | Real estate | 2007 |
| Dark Lynx Engineering Limited | Professional & scientific | 2020 |
| Dark Side of the Spoon Limited | Hospitality | 2026 |
| Darling Medical Aesthetics Ltd | Other services | 2024 |
| Darlison Developments Ltd | Real estate | 2019 |
| Darren Cunliffe Ltd | Administrative & support | 2025 |
| Darren Dunn Fitting Service Limited | Administrative & support | 2025 |
| Darren J Beadle Limited | Administrative & support | 2016 |
| Darren Kilburn Limited | Construction | 2018 |
| Darren Neesam Limited | Administrative & support | 2015 |
| Darren Whitaker Limited | Professional & scientific | 2017 |
| Dartlake Limited | Arts & recreation | 1986 |
| Daryl Mckay Limited | Administrative & support | 2007 |
| DAS Aerospace Ltd | Administrative & support | 2010 |
| DAS Auto NW Ltd | Wholesale & retail | 2025 |
| Dascalu Engineering Limited | Administrative & support | 2015 |
| Dasford | Financial services | 2022 |
| Dash CP Ltd | Real estate | 2025 |
| Dash Direct Couriers Ltd | Transport & logistics | 2026 |
| Dash Property Developments Limited | Real estate | 2021 |
| Dasol NW Limited | Construction | 2023 |
| Dasol Two Limited | Real estate | 2023 |
| Data Automation Ltd | Professional & scientific | 2019 |
| Data CPR Limited | Information & communication | 2010 |
| Data Dragon Solutions Limited | Administrative & support | 2023 |
| Data EGG Ltd | Information & communication | 2017 |
| Data Five Limited | Information & communication | 2012 |
| Data Grammar Limited | Information & communication | 2021 |
| Data Insights & Analytics Ltd | Administrative & support | 2026 |
| Data Safe Enterprise Limited | Information & communication | 2024 |
| Data Space Solutions Limited | Information & communication | 2022 |
| Dataark Solutions Ltd | Information & communication | 2018 |
| Datadeep Limited | Professional & scientific | 1969 |
| Datamaster Ltd | Information & communication | 1997 |
| Datares Limited | Information & communication | 2017 |
| Datasec Ltd | Information & communication | 2025 |
| Datasonic Limited | Information & communication | 2019 |
| Datastack Limited | | 1985 |
| Datel Advansys Limited | Information & communication | 2009 |
| Datel Computing Limited | Information & communication | 1981 |