| Dolby Consulting Limited | Professional & scientific | 2017 |
| Domicar Limited | Manufacturing | 2015 |
| DOMY4U Ltd | Real estate | 2021 |
| Donabe UK Limited | Wholesale & retail | 2025 |
| Dont Panic Group Limited | Professional & scientific | 2021 |
| Dont Panic Pizzeria Ltd | Hospitality | 2021 |
| Dont Panic Promotions Limited | Other services | 2021 |
| Dorni Transport Ltd | Transport & logistics | 2018 |
| Dorwin Accountancy Ltd | Professional & scientific | 2024 |
| Dorwin Solar Solutions Ltd | Construction | 2024 |
| DOT Investments Ltd | Real estate | 2018 |
| Dovista UK Limited | Wholesale & retail | 1989 |
| Down to Earth Home and Garden Ltd | Administrative & support | 2008 |
| Downey Land UK Limited | Real estate | 2020 |
| Downham Developments Limited | Real estate | 1992 |
| DPA Technologies Ltd | Professional & scientific | 2016 |
| Dpjc Technologies Ltd | Wholesale & retail | 2024 |
| DQ Carpentry & Construction Ltd | Construction | 2019 |
| DR Basily Limited | Health & social care | 2026 |
| DR N F Broe Ltd | Health & social care | 2002 |
| Draft 41 Ltd | Arts & recreation | 2024 |
| Draft Wheelchairs Limited | Wholesale & retail | 2003 |
| Drago HIT Ltd | Manufacturing | 2026 |
| Dragon Hydro Ltd | Energy | 2008 |
| Dragon Premier Limited | Information & communication | 2015 |
| DRAGON74 Limited | Transport & logistics | 2016 |
| Dragonflyaero Limited | Professional & scientific | 2025 |
| Dragonhead Consultancy Limited | Professional & scientific | 2007 |
| Drakard Ltd | Professional & scientific | 2022 |
| Dream Clean Services Limited | Administrative & support | 2006 |
| Dream Properties (Cambs) Limited | Construction | 2020 |
| Dreaming Spires Software Development Ltd | Information & communication | 2022 |
| Dreamy Cake Studio Ltd | Manufacturing | 2024 |
| Drive IT Consulting Ltd | Information & communication | 2020 |
| Driving Education Ltd | Transport & logistics | 2026 |
| DRL Transport Ltd | Transport & logistics | 2025 |
| Dropped Limited | Information & communication | 2014 |
| DRS Consulting Solutions Ltd | Professional & scientific | 2019 |
| Drumpulse Events Ltd | Administrative & support | 2005 |
| DS Property Estates Ltd | Real estate | 2024 |
| DS Welding Services Ltd | Manufacturing | 2026 |
| DSC Developments Ltd | Real estate | 2014 |
| DTC Trading Limited | Wholesale & retail | 2023 |
| DTM IT Solutions Ltd | Information & communication | 2015 |
| Dual Harvest Agrivoltaics Ltd | Agriculture & fishing | 2026 |
| Duckee Distribution Ltd | Wholesale & retail | 2025 |
| Dulcedo Patisserie Limited | Hospitality | 2017 |
| Dumitig Services Ltd | Transport & logistics | 2018 |
| Duncan House (Earith) Management Company Limited | Households | 1995 |
| Duncombe Agricultural Limited | Agriculture & fishing | 2010 |
| Duncombe Painting Limited | Construction | 2003 |
| Durman Transport Ltd | Wholesale & retail | 2015 |
| Duvalco UK Limited | Manufacturing | 2010 |
| DV Maintenance Limited | Construction | 2005 |
| DVN Media Limited | Professional & scientific | 2008 |
| Dynamix Fitness Ltd | Arts & recreation | 2023 |
| E & M Bacon (Haulage) Limited | Transport & logistics | 2003 |
| E & M Global Ltd | Financial services | 2025 |
| E D Hall & Co Ltd | Hospitality | 2018 |
| E P Brand (Holdings) Limited | Financial services | 2021 |
| E&D Trans Limited | Transport & logistics | 2016 |
| E-Griffin Consulting Limited | Professional & scientific | 2002 |
| E-Teaching Limited | Information & communication | 2004 |
| E-Timber Products Ltd | Manufacturing | 2014 |
| E. P. G. Lifting Services Ltd | Construction | 2019 |
| E.A. Stern Supplies Limited | | 1976 |
| E.A.Gill & SON Limited | Transport & logistics | 1955 |
| E.P.Brand (Farmers) Limited | Agriculture & fishing | 1954 |
| E.P.Brand (Warboys) Limited | | 1944 |
| Eagerrefine Limited | Real estate | 1996 |
| EAM Consulting Ltd | Professional & scientific | 2009 |
| Earith Catering Ltd | Hospitality | 2020 |
| Earith Fort Ltd | Professional & scientific | 2026 |
| Earith Lakes Fisheries Ltd | Agriculture & fishing | 2011 |
| Earl and Earl Limited | Real estate | 1938 |
| Earl's of Cambridge Limited | Construction | 2019 |
| Earth Homes Ltd | Real estate | 2025 |
| East Air Conditioning Services Limited | Construction | 2017 |
| East Anglia Gasworks Ltd | Construction | 2022 |
| East Cambridgeshire Swim Academy Ltd | Education | 2026 |
| Easteals Limited | Construction | 2017 |
| Eastern Counties Flat Roofing Ltd | Construction | 2018 |
| Eastern Farms Limited | Agriculture & fishing | 2007 |
| Eastern Security Services Limited | Administrative & support | 2004 |
| Eastlakes Moving Company Limited | Transport & logistics | 2024 |
| Eastmere Marketing Limited | Information & communication | 2000 |
| Easy Lorry Ltd | Wholesale & retail | 2022 |
| Easy Reach Cleaning Ltd | Administrative & support | 2010 |
| Eating Food Ltd | Extraterritorial | 2018 |
| Eaton Developments Limited | | 1987 |
| Eaton Fine Homes Ltd | Construction | 2018 |
| Eaton Socon Insurance Services Limited | Wholesale & retail | 1986 |
| EBC Building Services Limited | Construction | 2024 |
| Ebzels Limited | Other services | 2022 |
| Ecco Property Maintenance Ltd. | Professional & scientific | 2023 |
| Ecibe Limited | Professional & scientific | 2011 |
| Eclectic Furniture Renovations Ltd | Other services | 2026 |
| Eclectic Specialists Ltd | Professional & scientific | 2010 |
| Eclipse Property Management Services Limited | Other services | 2017 |
| Eclipse Technologies Ltd. | Construction | 1989 |