| East Riding Building Services Limited | Other services | 1991 |
| East Riding Catering Equipment Ltd | Wholesale & retail | 2020 |
| East Riding Consultants Limited | Professional & scientific | 2003 |
| East Riding GAS Limited | Construction | 1996 |
| East Riding Hydraulics Holdings Limited | Financial services | 2026 |
| East Riding Medical Reporting Ltd | Health & social care | 2022 |
| East Riding Property Solutions Ltd | Real estate | 2020 |
| East Riding Renovations Ltd | Real estate | 2013 |
| East Riding Sports C.I.C. | Arts & recreation | 2021 |
| East Riding Theatre Limited | Arts & recreation | 2012 |
| East Riding Voluntary Action Services (Ervas) Limited | Information & communication | 2006 |
| East Yorkshire Beauty Ltd | Other services | 2024 |
| East Yorkshire Bookkeeping Limited | Professional & scientific | 2024 |
| East Yorkshire Broadcasting Limited | Information & communication | 2013 |
| East Yorkshire Building Limited | Manufacturing | 2020 |
| East Yorkshire Camper Rentals Ltd | Administrative & support | 2025 |
| East Yorkshire Clearance Ltd | Transport & logistics | 2020 |
| East Yorkshire Electrical Limited | Construction | 2019 |
| East Yorkshire Equine Assisted Therapy C.I.C. | Other services | 2025 |
| East Yorkshire Farming Contractors Limited | Agriculture & fishing | 2023 |
| East Yorkshire Federation of Women's Institutes | Health & social care | 1992 |
| East Yorkshire Fencing Limited | Wholesale & retail | 2020 |
| East Yorkshire Groundworks Limited | Administrative & support | 2022 |
| East Yorkshire Group Limited | Construction | 2020 |
| East Yorkshire Home Care Limited | Health & social care | 2019 |
| East Yorkshire Hydrotherapy Centre Ltd | Other services | 2021 |
| East Yorkshire Landscapes Limited | Administrative & support | 2022 |
| East Yorkshire Legal Services Limited | Professional & scientific | 2006 |
| East Yorkshire Locksmiths Ltd | Administrative & support | 2024 |
| East Yorkshire Private Hire Limited | Transport & logistics | 2020 |
| East Yorkshire Property Services Limited | Construction | 2024 |
| East Yorkshire Psychology Ltd | Health & social care | 2024 |
| East Yorkshire Rewind Services Limited | Wholesale & retail | 2003 |
| East Yorkshire Roofing Services Limited | Construction | 2001 |
| East Yorkshire Self Storage Ltd | Transport & logistics | 2025 |
| East Yorkshire Surfacing Limited | Construction | 2023 |
| East Yorkshire Surgical Services Limited | Health & social care | 2026 |
| Eastfield Farm Residential Home Limited | Agriculture & fishing | 2003 |
| Easy Bear Limited | Information & communication | 2019 |
| Easy Riding Limited | Transport & logistics | 2026 |
| Echo Delta Engineering Limited | Professional & scientific | 2006 |
| Eclairer Patrimoine Limited | Financial services | 2025 |
| Eco Republic Ltd | Wholesale & retail | 2025 |
| Eco Roofing and Building (Beverley) Ltd | Construction | 2025 |
| Ecowatts Energy Ltd | Construction | 2024 |
| Eddi Mtech Limited | Professional & scientific | 2024 |
| Edge Zero One Technologies Ltd | Information & communication | 2026 |
| Edgerton Group Holdings Ltd | Financial services | 2024 |
| Edison Engineering Services Ltd | Professional & scientific | 2025 |
| Educare Nursery Limited | Health & social care | 1996 |
| Eemp Limited | Professional & scientific | 2022 |
| Eggiton.Com Ltd | Wholesale & retail | 2023 |
| EHQ Properties Limited | Real estate | 2018 |
| Eiman Khalifa Healthcare Limited | Health & social care | 2022 |
| Ejoli Academy Ltd | Education | 2023 |
| Ejoli Clinic Ltd | Health & social care | 2022 |
| Elasto Ltd | Wholesale & retail | 2025 |
| Elecforce Limited | Professional & scientific | 2012 |
| Electric Gorilla Ltd | Hospitality | 2023 |
| Electrician Beverley Ltd | Construction | 2025 |
| Eleven Homes Hull Ltd | Construction | 2023 |
| Eleven Marketing Limited | Professional & scientific | 2013 |
| Elite Barber 27 Ltd | Other services | 2026 |
| Elite Car Maintenance Limited | Wholesale & retail | 2020 |
| Elite Coachworks Limited | Wholesale & retail | 2017 |
| Elite Commercials (EY) Limited | Wholesale & retail | 2023 |
| Elite Pest Control (UK) Ltd | Administrative & support | 2022 |
| Elite Properties (EY) Limited | Real estate | 2023 |
| Elite Services Group Ltd | Construction | 2015 |
| Elite Signage Limited | Manufacturing | 2025 |
| Elito Collective Limited | Real estate | 2025 |
| Elizabeth Hall Ltd | Wholesale & retail | 2020 |
| Elizabeth Lucas Ltd | Wholesale & retail | 2019 |
| Ellen Whitaker Show Jumping Limited | Agriculture & fishing | 2017 |
| Ellerington Enterprises Ltd | Financial services | 2025 |
| Elliott Sports Media Limited | Professional & scientific | 2008 |
| Emergency Planning Services Ltd | Professional & scientific | 2022 |
| EMH Property Holdings Ltd | Real estate | 2023 |
| Emily Joy Garden Design Ltd | Professional & scientific | 2024 |
| Energywise (Yorkshire) Limited | Wholesale & retail | 1992 |
| Engenus Limited | Professional & scientific | 2007 |
| Engineering @ Heights Limited | Manufacturing | 2009 |
| Enginour Limited | Manufacturing | 2025 |
| Engravity Limited | Wholesale & retail | 2023 |
| Enigma Joinery Limited | Manufacturing | 2006 |
| Ensyne Ltd | Other services | 2024 |
| Envelope Productions Ltd | Extraterritorial | 2012 |
| Enviroaggs Limited | Mining & quarrying | 2021 |
| Envirogen Limited | Construction | 1994 |
| Envision Clinics Ltd | Health & social care | 2025 |
| Envision Eyes Ltd | Health & social care | 2024 |
| Enzair Compression Systems Limited | Manufacturing | 2024 |
| Equip Consultancy Ltd | Education | 2018 |
| ER Groundworks Ltd | Construction | 2023 |
| ERT Catering Limited | Hospitality | 2016 |
| ESR Accountancy Limited | Professional & scientific | 2012 |
| ESR Commercial Finance Limited | Financial services | 2013 |
| ESR Consultancy Ltd | Professional & scientific | 2019 |
| ESR Developments Limited | Extraterritorial | 2012 |
| ESR Finance Group Limited | Financial services | 2013 |