| D&M Mechanical Holdings Limited | Financial services | 2024 |
| D&M Properties Northwest Ltd | Real estate | 2025 |
| D&M Roofing (MCR) Ltd | Construction | 2025 |
| D&N Auto Repairs Limited | Wholesale & retail | 2025 |
| D&N Henderson Consultancy Services Ltd | Professional & scientific | 2017 |
| D&Q Partners Ltd | Construction | 2020 |
| D&S Facility Management Limited | Manufacturing | 2013 |
| D&S Sprinklers Ltd | Construction | 2019 |
| D&T's Health LAB Ltd | Arts & recreation | 2021 |
| D&U Direct Ltd | Wholesale & retail | 2021 |
| D&V LEE Property Consultants Limited | Professional & scientific | 2013 |
| D&W Drylining Limited | Construction | 2011 |
| D&X Caribbean Takeaway Ltd | Hospitality | 2023 |
| D&X Caterings Ltd | Hospitality | 2025 |
| D' Grand Haveli Ltd | Hospitality | 2019 |
| D'Image Hair Limited | Other services | 2017 |
| D'Urton Grange (Preston) Management Co Limited | Households | 2022 |
| D-Energi Limited | Professional & scientific | 2007 |
| D-Energi Trading Limited | Energy | 2017 |
| D-Express Transport Limited | Transport & logistics | 2025 |
| D-Gee Food Limited | Hospitality | 2025 |
| D-Globoutique and Wedding Accessories Limited | Manufacturing | 2015 |
| D-Gr Holdings Ltd | Construction | 2024 |
| D-Rex Ltd | Construction | 2015 |
| D. & J. Air Conditioning Services Limited | Agriculture & fishing | 1973 |
| D. Atkinson Maintenance Limited | Manufacturing | 2003 |
| D. Ford Associates Limited | Professional & scientific | 2003 |
| D. K. (Wholesale) Limited | Wholesale & retail | 1981 |
| D. Mcdonald Properties Limited | Real estate | 2021 |
| D. Speight Limited | Wholesale & retail | 2003 |
| D.& G.Smith,Gibson & Co.Limited | Manufacturing | 1934 |
| D.A Food Express Ltd | Hospitality | 2025 |
| D.A. Window Cleaning Ltd | Administrative & support | 2017 |
| D.A.C City Living Limited | Real estate | 2019 |
| D.A.K. Software Services Limited | Information & communication | 1985 |
| D.A.L. Joinery Ltd | Manufacturing | 2012 |
| D.B Wall Specialist Ltd | Extraterritorial | 2024 |
| D.B.N. Lighting Limited | Administrative & support | 1998 |
| D.B.T. Medical Limited | Manufacturing | 2015 |
| D.C. Cook (Macclesfield) Limited | Transport & logistics | 1964 |
| D.C. Cook (Manchester) Limited | Transport & logistics | 1933 |
| D.C. Kennedy Homes Limited | Construction | 1978 |
| D.C.Cook (Rochdale) Limited | Transport & logistics | 1973 |
| D.F.C. Water Services Ltd | Water & waste | 2010 |
| D.Ggoods Limited | Wholesale & retail | 2023 |
| D.H. Joinery & Building (Manchester) Limited | Construction | 2013 |
| D.H. Mansfield Limited | Wholesale & retail | 1998 |
| D.H. Welton & Co. Limited | Construction | 1974 |
| D.H.C Groundworks Limited | Construction | 2024 |
| D.Howorth & SON Limited | Wholesale & retail | 1952 |
| D.K. Thomas Limited | Professional & scientific | 2011 |
| D.K.M. Properties (NW) Ltd | Real estate | 2023 |
| D.M.C. Trailers Limited | Administrative & support | 2000 |
| D.M.W. Distributions Limited | Wholesale & retail | 1983 |
| D.Mo Global Ltd | Wholesale & retail | 2025 |
| D.Mortimer's Transport Services Limited | Information & communication | 1964 |
| D.Ohm Improvements Limited | Construction | 2026 |
| D.P.O Electrical Ltd | Construction | 2018 |
| D.R Cleaning Services Limited | Administrative & support | 2025 |
| D.R Residential Ltd | Real estate | 2021 |
| D.R. Construction (MCR) Limited | Construction | 2019 |
| D.R. Hansard & SON Ltd | Construction | 1996 |
| D.RAY.365 Hair and Beauty Salon Ltd | Other services | 2026 |
| D.S. Pine Trading Ltd | Wholesale & retail | 2026 |
| D.S.B. Rangdaar Limited | Real estate | 2003 |
| D.Shafiq Ltd | Health & social care | 2021 |
| D.Tech Studio Ltd | Information & communication | 2025 |
| D.V.K.Distributions Ltd | Wholesale & retail | 2026 |
| D.W. Begal & SON Limited | Administrative & support | 2002 |
| D.W. Installations Limited | Other services | 2015 |
| D.W3RT Visuals Ltd | Information & communication | 2025 |
| D.Wan Limited | Real estate | 2022 |
| D1 (NW) Ltd | Hospitality | 2025 |
| D1 Motors Ltd | Wholesale & retail | 2025 |
| D1 Painting & Decorating Ltd | Construction | 2024 |
| D13 Properties Ltd | Real estate | 2025 |
| D13 Property Limited | Real estate | 2020 |
| D1STRKT North West Limited | Real estate | 2023 |
| D2 Capital Investments Limited | Financial services | 2022 |
| D2 Capital Limited | Administrative & support | 2006 |
| D2 Capital Management Limited | Real estate | 2024 |
| D2 Capital Partners Limited | Professional & scientific | 2024 |
| D2 Global Holdings Ltd | Financial services | 2024 |
| D2 Global Ltd | Construction | 2011 |
| D2 INT Ltd | Wholesale & retail | 2013 |
| D2F Batley Ltd | Wholesale & retail | 2025 |
| D3 Home Improvement Ltd | Construction | 2023 |
| D3 Home Renovations Ltd. | Construction | 2025 |
| D3 IOT Limited | Financial services | 2026 |
| D3ES Ltd | Health & social care | 2009 |
| D3K Ltd | Arts & recreation | 2009 |
| D3KAY Limited | Wholesale & retail | 2023 |
| D4 Medical Forms Ltd | Administrative & support | 2024 |
| D4D Logistics Ltd | Transport & logistics | 2024 |
| D4J Properties Ltd | Households | 2023 |
| D5 Estates Ltd | Real estate | 2024 |
| D55 Holdings Limited | Financial services | 2021 |
| D55 Limited | Information & communication | 2018 |
| D56 Ltd | Information & communication | 2022 |
| D7 Developments Ltd | Construction | 2012 |