| Electric Corby CIC | Professional & scientific | 2012 |
| Elegant and Wild Garden Design Limited | Professional & scientific | 2021 |
| Elegant Properties Investment Ltd | Real estate | 2025 |
| Elephant Film Productions Ltd | Arts & recreation | 2023 |
| Elevate Consulting Services Ltd | Professional & scientific | 2024 |
| Elfiro Ltd | Other services | 2013 |
| ELI ELY Limited | Extraterritorial | 2023 |
| Elias Raducu Construction Limited | Construction | 2025 |
| Elite Drylining & Fitout Ltd | Construction | 2026 |
| Elite PDR Limited | Wholesale & retail | 2018 |
| Elite Sports Therapy Ltd | Health & social care | 2019 |
| Elitina Ltd | Wholesale & retail | 2017 |
| Elle Physiotherapy Ltd | Other services | 2022 |
| Elleloise Limited | Health & social care | 2025 |
| ELM Grange Finedon Management Company Limited | Households | 2003 |
| ELM UK Limited | Manufacturing | 2003 |
| Elysium Inc (UK) Limited | Health & social care | 2017 |
| Emanuel Bitu Ltd | Transport & logistics | 2019 |
| Emax North LP | | 2011 |
| Emelita Gamutan Recruitment Limited | Administrative & support | 2022 |
| Emerald Tiger Ltd | Wholesale & retail | 2024 |
| Emleh Property Investment Ltd | Real estate | 2025 |
| Emmpat Limited | Construction | 2018 |
| EMN Civils Ltd | Construction | 2020 |
| Empire Roofing Systems Ltd | Construction | 2020 |
| Empower Education - Midlands Limited | Education | 2024 |
| Empress World Ltd | Administrative & support | 2022 |
| ENB Property Holdings Limited | Real estate | 2024 |
| Enchanté Nails Ltd | Wholesale & retail | 2025 |
| Encoen Consulting Ltd | Professional & scientific | 2015 |
| Encounter Jesus Ministries International UK | Other services | 2023 |
| End.Services Limited | Transport & logistics | 2025 |
| Energetix UK Limited | Wholesale & retail | 2021 |
| Energy Training Network Limited | Education | 2022 |
| Energystor Limited | Professional & scientific | 2017 |
| Energystor Solutions Limited | Construction | 2023 |
| Enersol Engineering Ltd | Professional & scientific | 2018 |
| Enexa Energy Solutions Ltd | Professional & scientific | 2014 |
| Engaging Change Solutions Ltd | Professional & scientific | 2017 |
| Enhance Wellbeing Healthcare Ltd. | Health & social care | 2018 |
| Enjoying Life Limited | Health & social care | 2019 |
| Enkay PVT Ltd | Wholesale & retail | 2023 |
| Ensco 1277 Limited | Professional & scientific | 2018 |
| Enso Nyame YE Ltd | Health & social care | 2021 |
| Entapris Limited | Professional & scientific | 2019 |
| Enterprise Construction & Refurbishments Ltd | Construction | 2015 |
| Envpact Limited | Water & waste | 2022 |
| Enzoifix Ltd | Transport & logistics | 2024 |
| EOA Property Investments Ltd | Real estate | 2022 |
| Epidemic MMA Limited | Arts & recreation | 2023 |
| EPM Group Ltd | Wholesale & retail | 2001 |
| EPM Liquitek Ltd | Extraterritorial | 2021 |
| EPS Installations Limited | Construction | 2005 |
| Equinox Facilities Management Ltd | Administrative & support | 2016 |
| Equipment 4 U Limited | Wholesale & retail | 1998 |
| Equity Communications Limited | Professional & scientific | 2003 |
| Equity Hub Ltd | Real estate | 2025 |
| Equityculture Ltd | Professional & scientific | 2006 |
| Eric Hand Car Wash Ltd | Other services | 2015 |
| Eric&Mollyjones Ltd | Real estate | 2022 |
| ESE Holdings Limited | Professional & scientific | 2010 |
| ESE World Limited | Wholesale & retail | 1988 |
| Essence Perfume Limited | Wholesale & retail | 2025 |
| Esta Stone Ltd | Real estate | 2026 |
| Estol Trade Ltd | Wholesale & retail | 2025 |
| Etech Revolution Ltd | Manufacturing | 2025 |
| Eternity Funeral Services Ltd | Other services | 2024 |
| Etlt Limited | Agriculture & fishing | 2019 |
| Etp-Ar Energy Limited | Financial services | 2022 |
| EU Haulage Ltd | Wholesale & retail | 2019 |
| Euramax Corby Limited | Manufacturing | 2020 |
| Euro Express (Corby) Ltd | Wholesale & retail | 2021 |
| Euro George Ltd | Wholesale & retail | 2024 |
| Euro Havana Ltd | Wholesale & retail | 2023 |
| Eurojewellery Ltd | Wholesale & retail | 2014 |
| Euronumbers Consulting Ltd | Hospitality | 2019 |
| Europa Developers Ltd | Construction | 2019 |
| European Construction in UK Ltd | Construction | 2017 |
| European Express Corby Ltd | Wholesale & retail | 2026 |
| Europerout Limited | Transport & logistics | 2018 |
| Eurotarget UK Ltd | Manufacturing | 2025 |
| Eurotrace Trading Limited | Manufacturing | 1994 |
| EV PDR Services Limited | Wholesale & retail | 2024 |
| Evco Services Limited | Wholesale & retail | 2023 |
| Evehouses Ltd | Real estate | 2025 |
| Ever Irie Ltd | Wholesale & retail | 2021 |
| Evergreen Complex Care Ltd | Health & social care | 2022 |
| Evergreen Occasions Limited | Other services | 2024 |
| Everworth Investments Ltd | Administrative & support | 2016 |
| Evisco Limited | Wholesale & retail | 2019 |
| Evolution Dreams Ltd | Construction | 2020 |
| Evoque Dental LAB Ltd | Health & social care | 2023 |
| Evroc Limited | Other services | 2023 |
| Ewasdent Limited | Health & social care | 2016 |
| Excel Dryliners Limited | Construction | 2014 |
| Exclusive Cars (Northants) Limited | Other services | 2007 |
| EXP Group Limited | Manufacturing | 1997 |
| Export to Japan CIC | Administrative & support | 2016 |
| Express Perfect Clean Ltd | Administrative & support | 2026 |
| Extramile Lodgings Limited | Hospitality | 2019 |