| Eaton Bray Academy | Education | 2011 |
| Eaton Bray Curry House Ltd | Hospitality | 2024 |
| Eaton Food Limited | Hospitality | 2022 |
| Eaton Valve Products Limited | Professional & scientific | 2000 |
| EC Camiers Limited | Water & waste | 2017 |
| Eckson Sanctuary Community Interest Company | Agriculture & fishing | 2023 |
| ECM Couriers Limited | Transport & logistics | 2013 |
| Eco Electrical Services Ltd | Construction | 2024 |
| Eco Energy Doors ,Windows and Glass Ltd | Construction | 2022 |
| Eco Energy Solar & Storage Ltd | Manufacturing | 2026 |
| Eco Flore Limited | Wholesale & retail | 2023 |
| Eco Green Cleaning Services Ltd | Administrative & support | 2022 |
| Eco Plumber 21 Limited | Construction | 2022 |
| Eco Retrofit Consultants Ltd | Professional & scientific | 2024 |
| ECO1 Ltd | Professional & scientific | 2023 |
| Ecohds Ltd | Construction | 2022 |
| Econet Homes Limited | Households | 2025 |
| Ecotech Oven & Carpet Cleaning Limited | Extraterritorial | 2013 |
| Ecpc Trade Limited | Construction | 2025 |
| Ecsc Trading Ltd | Wholesale & retail | 2020 |
| EDC Construction (Beds) Limited | Construction | 2014 |
| Eden Court (Leighton Buzzard) Management Limited | Real estate | 2000 |
| Eden Financial & Wealth Management Limited | Financial services | 2010 |
| Eden Pools Limited | Construction | 2011 |
| Edens Gate CIC | Administrative & support | 2026 |
| EDF Air Conditioning Limited | Energy | 2012 |
| Edgaras Ltd | Construction | 2014 |
| Edgarsson Limited | Administrative & support | 2003 |
| Edgeco Limited | Manufacturing | 2015 |
| Edgware Metals Limited | Mining & quarrying | 2026 |
| Edible Suppliers UK Ltd | Wholesale & retail | 2025 |
| EDK Projects Ltd | Professional & scientific | 2022 |
| EDK Property Ltd | Real estate | 2026 |
| Edlesborough Holdings Limited | Financial services | 2024 |
| Edlesborough Investments Limited | Real estate | 2024 |
| Edlesborough Pharmaceutical Supplies Limited | Health & social care | 1996 |
| EDS Construction Ltd | Construction | 2023 |
| Educare Supply Ltd | Professional & scientific | 2023 |
| Education Centre Kregzdute Ltd | Education | 2023 |
| Education Guardian Ltd | Education | 2021 |
| Eduforyou Ltd | Professional & scientific | 2022 |
| Edvifa Ltd | Health & social care | 2021 |
| Edwards GAS Services Limited | Construction | 2025 |
| EE Private Capital Ltd | Financial services | 2018 |
| EEL Couriers Limited | Transport & logistics | 2019 |
| Efab Recruitment Limited | Administrative & support | 2022 |
| Effe & Effiba BO Company Limited | Health & social care | 2014 |
| Efficient Business Solutions Ltd | Professional & scientific | 2026 |
| Efkey Limited | Construction | 2008 |
| EGA Commercial Limited | Wholesale & retail | 2022 |
| Egan Knight International Sports Management Limited | Arts & recreation | 2023 |
| Egan Knight Limited | Construction | 2017 |
| Egis Carpentry Ltd | Construction | 2019 |
| Egis Transport Ltd | Transport & logistics | 2013 |
| Eglon Limited | Construction | 2025 |
| Ehail Ltd | Transport & logistics | 2026 |
| Eightman Ltd | Transport & logistics | 2022 |
| Eightyfive MM Ltd | Information & communication | 2025 |
| EKO Ltd. | Administrative & support | 2001 |
| Ekosh Global Technologies Limited | Professional & scientific | 2026 |
| Ekpa Houghton Regis Limited | Transport & logistics | 2023 |
| EL Capitan Ltd | Education | 2025 |
| Elaina Insights Ltd | Real estate | 2026 |
| Elanti Constructions Ltd | Construction | 2015 |
| Elatanda Ltd | Information & communication | 2016 |
| Elborn Landscaping & Construction Ltd | Construction | 2022 |
| Elcin Food Centre Ltd | Wholesale & retail | 2009 |
| Elcot House Management Company Limited | Hospitality | 1987 |
| Elderkey Limited | Administrative & support | 2016 |
| Eldorarose Limited | Health & social care | 2023 |
| Eldred Site Services Limited | Construction | 2014 |
| Electra-Locks Limited | Administrative & support | 2011 |
| Electrical Rehab Limited | Construction | 2021 |
| Electrofit Industrial Solutions Ltd | Information & communication | 2019 |
| Electroheat Systems Limited | Administrative & support | 2006 |
| Electromech (PVT) Ltd | Professional & scientific | 2017 |
| Elegant Event Management Limited | Hospitality | 2014 |
| Elektrik Mobility Limited | Arts & recreation | 2021 |
| Elelyon Healthcare Ltd | Health & social care | 2023 |
| Elemental Premises Ltd | Households | 2025 |
| Elements of Buildings Ltd | Construction | 2018 |
| ELEV8TE Management Ltd | Professional & scientific | 2019 |
| Elevate Property Collective Ltd | Real estate | 2018 |
| Elevated Nights Ltd | Real estate | 2026 |
| Elevation Residential Lettings Limited | Real estate | 2020 |
| Elevengrason Limited | Financial services | 2025 |
| Elexey Ltd | Administrative & support | 2023 |
| Elite Commercial Consultants Limited | Construction | 2015 |
| Elite Electrical Connect Limited | Construction | 2011 |
| Elite Estates Properties Ltd | Real estate | 2024 |
| Elite GAS Plumbing & Heating Limited | Construction | 2023 |
| Elite Microcement Limited | Construction | 2021 |
| Elite Plumbing and Construction Ltd | Construction | 2021 |
| Elite Services and Merchandise UK Limited | Other services | 2018 |
| Elite Softplay Limited | Administrative & support | 2024 |
| Elite Trade Link Ltd | Wholesale & retail | 2026 |
| Elite Wheels Chauffeur Ltd | Transport & logistics | 2024 |
| Elitebest Ltd | Hospitality | 2003 |
| Ell-Kay Holdings Ltd | Professional & scientific | 2024 |
| Ellis Autos Limited | Manufacturing | 2005 |