| Dura Pump (Holdings) Ltd | Administrative & support | 2015 |
| Dura Pump Ltd | Manufacturing | 2015 |
| Durasteel Roofing Services Ltd | Construction | 2012 |
| Durasteel Services Limited | Construction | 2009 |
| Durham Solar 1 Limited | Energy | 2020 |
| Dusk Drop Ltd. | Manufacturing | 2023 |
| Dusk Trading Ltd | Wholesale & retail | 2026 |
| Dustbusters (Northampton) Limited | Other services | 2003 |
| Dustbusters Deep Cleaning Services Ltd | Administrative & support | 2024 |
| Dusters Cleaners UK Limited | Construction | 2015 |
| Duston Autocentre Ltd | Wholesale & retail | 2019 |
| Duston Barbers Ltd | Other services | 2023 |
| Duston Chimney Sweeps Ltd | Administrative & support | 2022 |
| Duston Dental LLP | | 2022 |
| Duston Garage Ltd | Wholesale & retail | 2022 |
| Duston Motors Ltd | Wholesale & retail | 2022 |
| Duston Spice Limited | Hospitality | 2023 |
| Dustys Coffee & Kitchen Ltd | Hospitality | 2024 |
| Duvall Estates Limited | Real estate | 2022 |
| Dv&H Properties Ltd | Real estate | 2024 |
| DVA Driving Ltd | Transport & logistics | 2025 |
| Dvalinn Payroll Services Ltd | Administrative & support | 2022 |
| DVM Pubs Ltd | Hospitality | 2019 |
| DVO Consulting Limited | Information & communication | 2016 |
| DVP Integration Limited | Other services | 2012 |
| DVS Holdings Ltd | Real estate | 2025 |
| DVS Properties Ltd | Real estate | 2021 |
| DW Services (Northampton) Ltd | Administrative & support | 2023 |
| DWC Limited | Professional & scientific | 2021 |
| Dwifa Holdings 234 Limited | Financial services | 2024 |
| Dyan Holdings Limited | Financial services | 2024 |
| Dyer Financial Solutions Ltd | Financial services | 2014 |
| Dynamic EA Limited | Information & communication | 2012 |
| Dynamic Flying Ltd | Other services | 2015 |
| Dynamic Management Consultants Ltd | Other services | 2009 |
| Dynamic Office Group Limited | Financial services | 2018 |
| Dynamic Office Seating Limited | Wholesale & retail | 2006 |
| Dynamicledger Solutions Limited | Information & communication | 2022 |
| Dynamis Property Ltd | Real estate | 2022 |
| Dynapta Ltd | Information & communication | 2012 |
| Dynasty Events Limited | Hospitality | 2017 |
| Dynasty Homes Ltd | Real estate | 2022 |
| Dynesourcer Ltd | Professional & scientific | 2025 |
| DYO Properties Ltd | Real estate | 2025 |
| DYS UK Holdings Ltd | Financial services | 2022 |
| Dysdyl Ltd | Wholesale & retail | 2025 |
| DYT Acacia Grove Ltd | Manufacturing | 2025 |
| DZ Lettings Ltd | Real estate | 2021 |
| Dzha Automotive Traders Ltd | Wholesale & retail | 2019 |
| Dzhindzhiev Limited | Transport & logistics | 2016 |
| Dzimet Care Providers Ltd | Health & social care | 2018 |
| E & C Management Consultants Ltd | Construction | 2021 |
| E & E Tane Construction Ltd | Construction | 2025 |
| E & H Hart Property Ltd | Real estate | 2024 |
| E & I Design and Construction Limited | Construction | 2012 |
| E & LJC Properties Limited | Real estate | 2023 |
| E & M Northampton Limited | Real estate | 2008 |
| E a G L E & I Limited | Hospitality | 2023 |
| E Automotive Limited | Information & communication | 2006 |
| E BIZ Ltd | Wholesale & retail | 2002 |
| E Comm Lojistics Limited | Professional & scientific | 2017 |
| E K Investments Ltd | Real estate | 1997 |
| E M Rogers (Leasing) Limited | Professional & scientific | 1969 |
| E M Rogers Limited | Professional & scientific | 2013 |
| E P Construction (Northampton) Ltd | Construction | 2019 |
| E Pollard & Sons Limited | Wholesale & retail | 2016 |
| E Woodford Shoe Academy Ltd | Manufacturing | 2022 |
| E& J Global Health Diagnostics Ltd | Health & social care | 2024 |
| E&A Future Construction Ltd | Construction | 2026 |
| E&A Investments Property Ltd | Real estate | 2025 |
| E&E Beauty Haven Ltd | Other services | 2026 |
| E&E Building Specialists Ltd | Construction | 2024 |
| E&G Digital Limited | Professional & scientific | 2023 |
| E&G Industries Limited | Wholesale & retail | 2024 |
| E&I Cleaning Services Ltd | Administrative & support | 2016 |
| E&M Capital Limited | Financial services | 2025 |
| E&P Endeavours Limited | Hospitality | 2020 |
| E&P Rail and Construction Limited | Construction | 2014 |
| E-Comm LAB Ltd | Wholesale & retail | 2021 |
| E-Commerce Emporium Ventures Ltd | Wholesale & retail | 2024 |
| E-I Noka Ltd | Construction | 2024 |
| E-Motive UK Online Limited | Information & communication | 2016 |
| E-Pak Direct Ltd | Administrative & support | 2026 |
| E-Riser Limited | Professional & scientific | 2014 |
| E-Sense Consulting Limited | Information & communication | 2004 |
| E-Vis Energy Ltd | Information & communication | 2022 |
| E. East & SON Limited | Wholesale & retail | 1957 |
| E.A. Flooring Limited | Construction | 2017 |
| E.A.S. Security Limited | Administrative & support | 2020 |
| E.Asthampton Limited | Administrative & support | 2007 |
| E.D Group Limited | Hospitality | 2019 |
| E.F.B. Group Holdings Limited | Professional & scientific | 2019 |
| E.F.B. Group Limited | Professional & scientific | 2005 |
| E.F.B. Holdings Limited | Financial services | 2025 |
| E.F.B. Trustees Limited | Professional & scientific | 2005 |
| E.F.E Flooring Ltd | Professional & scientific | 2011 |
| E.F.E Mason Homes Limited | Real estate | 2021 |
| E.G.Zap Ltd | Transport & logistics | 2023 |
| E.J. Wheldon Heating & Plumbing Limited | Construction | 2018 |
| E.M Building Projects Ltd | Construction | 2023 |