| Elliott Brickwork Contractors Ltd | Construction | 2012 |
| Ellis Ventures Ltd | Information & communication | 2018 |
| Ellisely Ltd | Administrative & support | 2016 |
| Ellison Fellingham Developments Ltd | Construction | 2026 |
| ELM Carbon Consulting Ltd | Professional & scientific | 2026 |
| ELM Tree House Management Company Limited | Households | 2006 |
| Elmes Property Ltd | Real estate | 2025 |
| Elmley Housing Estates Ltd | Real estate | 2026 |
| Elmswell Takeaway Ltd | Hospitality | 2024 |
| Eloquent Threads Ltd | Manufacturing | 2025 |
| Elora Collection Ltd | Wholesale & retail | 2023 |
| Elroi Digital Future Ltd | Information & communication | 2026 |
| ELSA23 Limited | Hospitality | 2026 |
| Elseb Ltd | Other services | 2025 |
| Elsom Enterprises Ltd | Extraterritorial | 2025 |
| Elth Limited | Health & social care | 2020 |
| Elthproperty Ltd | Real estate | 2024 |
| Elvi Ltd | Real estate | 2026 |
| ELY Autohaus Ltd | Wholesale & retail | 2025 |
| EM Truck Stop Ltd | Wholesale & retail | 2017 |
| Emaa Technologies Ltd | Information & communication | 2025 |
| Emanate Consulting Ltd | Professional & scientific | 2025 |
| Emaraat Group Ltd | Wholesale & retail | 2026 |
| Emava Ltd | Other services | 2018 |
| Embden Limited | Real estate | 2022 |
| Ember Pictures Ltd | Arts & recreation | 2025 |
| Embered Space Ltd | Professional & scientific | 2025 |
| Emberflare Limited | Wholesale & retail | 2024 |
| Emberfox Games Limited | Wholesale & retail | 2026 |
| Emblem INK Ltd | Other services | 2023 |
| Embz Limited | Information & communication | 2025 |
| Emdee Global Limited | Professional & scientific | 2018 |
| Emeksense Limited | Information & communication | 2025 |
| Emerald Beauty Suffolk Ltd | Other services | 2025 |
| Emerald Detailing Ltd | Administrative & support | 2025 |
| Emerald Investment Properties Limited | Real estate | 2022 |
| Emet Group Ltd | Financial services | 2025 |
| Emi-Med Ltd | Health & social care | 2024 |
| Emilia Popescu Ltd | Public administration | 2016 |
| Eminence Soft Ltd | Wholesale & retail | 2022 |
| Emir Suffolk Ltd | Hospitality | 2017 |
| Emmaside Ltd | Construction | 2024 |
| Emmerson Critchley Commercial Ltd | Construction | 2025 |
| Emmerson Critchley Developments Ltd | Construction | 2019 |
| Empire Spaces Limited | Real estate | 2014 |
| Employee Share Options Limited | Financial services | 2024 |
| Employment Connect Ltd | Administrative & support | 2023 |
| Empower Sales Management Ltd | Arts & recreation | 2023 |
| Empowered in Business Ltd | Professional & scientific | 2020 |
| Empowering and Nurturing Families CIC | Health & social care | 2023 |
| EMPOWERLAW4AFRICA Ltd | Administrative & support | 2026 |
| Empowerment & Growth Initiatives Ltd | Information & communication | 2025 |
| Empowermode Initiative Community Interest Company | Professional & scientific | 2025 |
| Empria Limited | Wholesale & retail | 2026 |
| Emqore Management Advisory Ltd | Professional & scientific | 2025 |
| Emroe MAC Ltd | Real estate | 2011 |
| EN Automotive Ltd | Wholesale & retail | 2025 |
| Enabled Consultancy Services Limited | Other services | 2019 |
| Enchntd Wellness Ltd | Arts & recreation | 2025 |
| Encompass Equine Solutions Ltd | Agriculture & fishing | 2021 |
| Encore Digital Services Ltd | Information & communication | 2024 |
| Encourage Management Ltd | Professional & scientific | 2023 |
| Endarc Limited | Information & communication | 2025 |
| Endcliffe Investments Limited | Real estate | 2025 |
| Endeavour Real Estate Ltd | Real estate | 2022 |
| Endoguard Limited | Professional & scientific | 2007 |
| Endulca Ltd | Manufacturing | 2025 |
| Endurance LAB Limited | Health & social care | 2024 |
| Enerdify Ltd | Professional & scientific | 2024 |
| Energetic English Ltd | Education | 2019 |
| Energex Infrastructure Services Ltd | Construction | 2025 |
| Energise Personal Fitness Ltd | Other services | 2018 |
| Energy Consulting & Contracting Limited | Professional & scientific | 2019 |
| Energy Guardians Limited | Professional & scientific | 2024 |
| Energy Tech OPS Ltd | Information & communication | 2025 |
| Energysecureuk Ltd | Administrative & support | 2022 |
| Enerwise Ltd | Information & communication | 2026 |
| Enga Group Limited | Wholesale & retail | 2015 |
| Engine Factor Ltd | Wholesale & retail | 2019 |
| Engineering Concepts (Bury) Ltd | Manufacturing | 2010 |
| English Learning Apps Ltd | Information & communication | 2024 |
| Enhanced HR Consulting Ltd | Administrative & support | 2025 |
| Enimpolix Advisory Limited | Professional & scientific | 2025 |
| Enka Catering Limited | Hospitality | 2011 |
| Enola Design Ltd | Wholesale & retail | 2022 |
| Enrichment Property Ltd | Real estate | 2025 |
| Enso Global Ltd | Construction | 2012 |
| Enterfirst Limited | Information & communication | 2004 |
| Enterprise Devops Limited | Information & communication | 2015 |
| Enterprise Web DEV Ltd | Information & communication | 2025 |
| Entico Limited | Information & communication | 2010 |
| Entire Learning Limited | Professional & scientific | 2016 |
| Entityworks Limited | Information & communication | 2025 |
| Entry Empire Limited | Arts & recreation | 2025 |
| Enviro Drones Ltd | Professional & scientific | 2025 |
| Enviro Electrical Services Ltd | Construction | 2021 |
| ENVIRO2L Limited | Construction | 2025 |
| Environmental-Human-Harmony Ltd | Arts & recreation | 2020 |
| ENZO1 Limited | Wholesale & retail | 2022 |
| Eonica Limited | Information & communication | 2000 |