| Dawbarn & Sons Limited | Manufacturing | 1973 |
| Dawncliff Associates Limited | Professional & scientific | 2005 |
| Dawson Management Group Ltd | Health & social care | 2026 |
| Dcpm Consultancy Limited | Information & communication | 2017 |
| DCS Design Limited | Manufacturing | 2025 |
| Ddpcouriers Ltd | Transport & logistics | 2013 |
| DE Silva Theatrical Productions Ltd | Arts & recreation | 2020 |
| DE Silva Theatrical Services Ltd | Arts & recreation | 2024 |
| Dealhunteremporium Limited | Wholesale & retail | 2025 |
| DEM Sports Limited | Manufacturing | 2012 |
| Dene Homes Limited | Construction | 1996 |
| Denstone Investments Ltd | Financial services | 2025 |
| Denton Metals Ltd | Water & waste | 2012 |
| Desi Pickles Ltd | Wholesale & retail | 2025 |
| Developer Support Ltd | Professional & scientific | 2020 |
| Dexter Britain Music Limited | Information & communication | 2013 |
| DG Services (Peterborough) Ltd | Construction | 2024 |
| DGT3X Limited | Construction | 2026 |
| DH Architecture + Design Ltd | Professional & scientific | 2022 |
| Diamond- Byte Solutions Limited | Information & communication | 2008 |
| Diffey Communication Services Ltd | Information & communication | 2014 |
| Digital Automotive Limited | Information & communication | 1996 |
| Digital Film Hub Ltd | Wholesale & retail | 2023 |
| Digital Pond Ltd | Professional & scientific | 2023 |
| DIJ Burnham Limited | Construction | 2015 |
| Dinasgabi Ltd | Transport & logistics | 2025 |
| Dindonia Services and Consultancy Ltd | Professional & scientific | 2025 |
| Direct Driver Services Ltd | Administrative & support | 2006 |
| Direct Pallets Ltd | Manufacturing | 2026 |
| DISCOUNT123 Limited | Wholesale & retail | 2017 |
| Diston Engineering Limited | Professional & scientific | 2016 |
| Diverse Contracting Services Ltd | Manufacturing | 2019 |
| Dixon Cars Ltd | Wholesale & retail | 2018 |
| DJ Driver Limited | Transport & logistics | 2025 |
| DJ Elbury & SON Ltd | Wholesale & retail | 2012 |
| DJ Shipping Limited | Wholesale & retail | 2026 |
| Djaaa Investments Limited | Financial services | 2023 |
| DJB Custom Fabrications Ltd | Manufacturing | 2026 |
| DKB Crop Protection Limited | Extraterritorial | 2002 |
| DLH Property Rentals Limited | Real estate | 2022 |
| Dodfrey Engineering Limited | Manufacturing | 2009 |
| Dominic Harrington Nurseries Limited | Agriculture & fishing | 2002 |
| Dordar Ltd | Transport & logistics | 2016 |
| Dosam Construction & Groundworks Ltd | Construction | 2024 |
| Dottie Events and Hire Ltd | Other services | 2018 |
| Dottie Photography Ltd | Professional & scientific | 2010 |
| Dovy LT Ltd | Transport & logistics | 2025 |
| Downham Wealth Management Ltd | Professional & scientific | 2020 |
| DP Timber Design Limited | Manufacturing | 2008 |
| DP Transportation Ltd | Transport & logistics | 2026 |
| Drainxpert Ltd | Water & waste | 2025 |
| Dramblis Ltd | Transport & logistics | 2025 |
| DRE FS Limited | Financial services | 2021 |
| Dreamstart Capital Limited | Professional & scientific | 2019 |
| Drift & Grind Coffee Co Ltd | Manufacturing | 2025 |
| Drive Safe MOT Centre Limited | Wholesale & retail | 2020 |
| DRIVE-365 (Motoring Solutions) Limited | Administrative & support | 2013 |
| Driving Motor Ltd | Transport & logistics | 2017 |
| Drove Properties Limited | Real estate | 2025 |
| DS Trade Solutions Ltd | Wholesale & retail | 2018 |
| DS Wisbech Ltd | Hospitality | 2023 |
| Dtailed Limited | Wholesale & retail | 2025 |
| Dubois Consulting Limited | Information & communication | 2020 |
| Duckfen Pet and Property Services Ltd | Agriculture & fishing | 2020 |
| Duncan Builds Ltd | Construction | 2023 |
| Dutis Music Ltd | Transport & logistics | 2025 |
| Dynamic Driving Solutions Ltd | Administrative & support | 2021 |
| E M Homes Limited | Construction | 2014 |
| E.Gabi Limited | Transport & logistics | 2018 |
| E.J.A LV Ltd | Transport & logistics | 2025 |
| E2E-TREASURY Ltd | Information & communication | 2024 |
| Eagles Golf & Tennis Centre Limited | Arts & recreation | 2003 |
| EAM Social Care Consultancy Limited | Professional & scientific | 2023 |
| EAP Express Ltd | Transport & logistics | 2017 |
| Earthworm Properties Limited | Real estate | 2017 |
| East Anglia Hardwoods Ltd | Manufacturing | 2022 |
| East Anglia Legal Services Ltd | Professional & scientific | 2019 |
| East Anglia Traffic Ltd | Construction | 2018 |
| East Anglian Cream Chargers Ltd | Wholesale & retail | 2021 |
| East Anglian Developments UK Limited | Real estate | 2007 |
| East Anglian Patios & Driveways Limited | Construction | 2026 |
| East Coast Doors Limited | Extraterritorial | 2004 |
| East Coast Safety Solutions Limited | Administrative & support | 2009 |
| Eastern Commercial Properties Ltd | Real estate | 2022 |
| Eastern Couriers Ltd | Extraterritorial | 2017 |
| Eastern Discount Stores Ltd | Wholesale & retail | 2008 |
| Eastern Estates Ltd | Real estate | 2017 |
| Eastern Frames UK Limited | Construction | 2011 |
| Eastern Optical Company Limited | Wholesale & retail | 2005 |
| Eastern Optical Services Ltd | Wholesale & retail | 2024 |
| Eastern Property Group (Developments) Limited | Construction | 2018 |
| Eastern Property Group Limited | Real estate | 2016 |
| Eastern Rent a Van Limited | Extraterritorial | 2017 |
| Eastern Timeframes Limited | Wholesale & retail | 2025 |
| Easternspraysolutions Limited | Extraterritorial | 2022 |
| Eastleigh Foods Ltd | Wholesale & retail | 2025 |
| Easton Developments Ltd | Construction | 2025 |
| Easy AS PYE Ltd | Professional & scientific | 2022 |
| Easy Screed Limited | Extraterritorial | 2017 |
| EAT Freedom Ltd | Wholesale & retail | 2023 |