| Daisy Sourcing Ltd | Administrative & support | 2024 |
| Daisylane Ltd | Wholesale & retail | 2016 |
| DAK Project Services Ltd | Professional & scientific | 2017 |
| Dakota Construction Limited | Construction | 2007 |
| Dale Howard Music Ltd | Arts & recreation | 2015 |
| Dalton Civils Limited | Construction | 2022 |
| Dalusca | Professional & scientific | 2025 |
| Dama Media Ltd | Professional & scientific | 2026 |
| Damask Limited | Other services | 2022 |
| Damien Moreton Electrical Ltd | Construction | 2020 |
| Damisie Limited | Information & communication | 2025 |
| DAN Coates Limited | Construction | 2017 |
| DAN Mech Ltd | Wholesale & retail | 2019 |
| DAN Nightingale Ents Ltd | Arts & recreation | 2022 |
| Dancad Electrical Solutions Limited | Construction | 2016 |
| Dance by Olivia Ltd | Arts & recreation | 2020 |
| Dancers' Dream Events Limited | Administrative & support | 2015 |
| DANI80 Ltd | Transport & logistics | 2019 |
| Danica Wilding Ltd | Administrative & support | 2021 |
| Daniel Blee Limited | Extraterritorial | 2013 |
| Daniel White Vehicle Sales Ltd | Wholesale & retail | 2025 |
| Danielle Hock (Tennis) Limited | Education | 2011 |
| Danny Cooper Plumbing & Heating Ltd | Construction | 2018 |
| Danny Fish and Chips Company Limited | Hospitality | 2018 |
| Danny Sculthorpe Services Ltd | Other services | 2018 |
| Dao-Tha Therapies Limited | Professional & scientific | 2014 |
| DAP Rail Ltd | Construction | 2026 |
| Dapa Fire Limited | Public administration | 2007 |
| Dapf Services Limited | Health & social care | 2013 |
| Dara Healthcare Consulting Services Limited | Professional & scientific | 2025 |
| Dara Property Ventures Limited | Households | 2026 |
| Darbyshire Design Services Limited | Professional & scientific | 2022 |
| Darfields Limited | Other services | 1995 |
| Daripine Ltd | Wholesale & retail | 2025 |
| Darla-Bells Ltd | Other services | 2025 |
| Darlington Walmesley Property Management Ltd | Real estate | 2023 |
| Darren D'Souza Consulting Ltd. | Professional & scientific | 2017 |
| Darshika Symphony Services Ltd | Health & social care | 2022 |
| Darts 59 Ltd | Hospitality | 2025 |
| Darts in the Garden Ltd | Arts & recreation | 2025 |
| Daruma JDM Imports Ltd | Wholesale & retail | 2026 |
| Darwin Brothers Limited | Financial services | 2018 |
| Darwin Contractors Limited | Construction | 1997 |
| Darwin Property Investments Limited | Real estate | 2011 |
| Daryl Brunsden Limited | Information & communication | 2019 |
| Dash Construction Limited | Construction | 2010 |
| Data Audio Visual Ltd | Information & communication | 2024 |
| Data Development & Training Limited | Transport & logistics | 2014 |
| Data Genetics Ltd | Information & communication | 2022 |
| Datalek Solutions Limited | Construction | 2006 |
| Datascribe Ltd | Information & communication | 2009 |
| Datastark AI Limited | Transport & logistics | 2023 |
| Davesway Limited | Real estate | 2025 |
| David Andrews HS Limited | Administrative & support | 2017 |
| David Aspinall Building Contractor Limited | Construction | 1994 |
| David Edgerton Re-Upholstery Limited | Administrative & support | 2003 |
| David John Lowe Limited | Agriculture & fishing | 2012 |
| David Littler Landscape Services Limited | Administrative & support | 2018 |
| David Moore Consulting Limited | Professional & scientific | 2016 |
| David Morris and Associates Limited | Extraterritorial | 2025 |
| David Oxborough Courier Limited | Transport & logistics | 2015 |
| David Rothwell Properties Limited | Real estate | 2001 |
| David Tanner Corporate Travel Ltd | Transport & logistics | 2020 |
| David Whitehead & Sons Limited | Manufacturing | 1967 |
| Davies Brickworks Ltd | Construction | 2004 |
| Davies Developments NW Ltd | Real estate | 2022 |
| Davies Electrical North West Ltd | Construction | 2018 |
| Davlyn Properties (Wigan) Limited | Construction | 1967 |
| Davmar Estates Limited | Construction | 1996 |
| DAW MED Services Ltd | Health & social care | 2019 |
| Dawber Ltd | Wholesale & retail | 2014 |
| Daytripper Apartments Limited | Hospitality | 2011 |
| DB Cars & Commercials Ltd | Wholesale & retail | 2014 |
| Db&A Solutions Ltd | Professional & scientific | 2019 |
| Dbhb Ltd | Construction | 2002 |
| DBI Contracts Limited | Construction | 2025 |
| DBI Furniture Solutions Limited | Extraterritorial | 2023 |
| DBI Investments Group Limited | Extraterritorial | 2023 |
| DBQ Group Ltd | Professional & scientific | 2026 |
| DBT Together Ltd | Health & social care | 2025 |
| DC Contractors NW Ltd | Construction | 2025 |
| DC Crane Services Ltd | Construction | 2026 |
| DC Developments NW Limited | Construction | 2025 |
| DC Global Logistics Ltd. | Transport & logistics | 2023 |
| DC Joinery and Construction Ltd | Construction | 2025 |
| DC Landscape Solutions Ltd | Administrative & support | 2026 |
| DC Mcgrath Ltd | Real estate | 2020 |
| DC Upgrades Ltd | Construction | 2018 |
| DCB Promotions Limited | Wholesale & retail | 2017 |
| DCM Transport Ltd | Transport & logistics | 2024 |
| Dcmediauk Ltd | Information & communication | 2026 |
| DCR Quality Ltd | Professional & scientific | 2020 |
| DD Property Holding Limited | Financial services | 2024 |
| DE Dent Limited | Wholesale & retail | 2002 |
| DE Global Innovations Limited | Wholesale & retail | 2021 |
| DE Laar Consulting Ltd | Professional & scientific | 2024 |
| DEA Services Ltd | Professional & scientific | 2018 |
| Dead Good Wood Ltd | Manufacturing | 2023 |
| Dealar Ltd | Professional & scientific | 2026 |
| Dealhill Limited | Transport & logistics | 1993 |