- Education, Port Clinton
- Education & Information Services, Port Clinton
- Educational Program Administration, Port Clinton
- Electric Companies, Port Clinton
- Electric Motors & Generators , Port Clinton
- Electrical Control Systems & Materials, Port Clinton
- Electrical Supplies, Parts & Equipment, Port Clinton - Wholesale & Manufacturers
- Electricians, Port Clinton - Electrical Contractors
- Electronics Manufacturers, Port Clinton
- Electronics Stores, Port Clinton
- Elementary Schools, Port Clinton
- Elevator & Escalators Sales, Repair & Service, Port Clinton
- Embroidery, Port Clinton
- Emergency Care Clinics, Port Clinton
- Emergency Rooms, Port Clinton - Urgent Care Centers
- Emergency Services, Port Clinton
- Emergency Victim Services, Port Clinton
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- Employment Agencies, Port Clinton - Staffing Agencies
- Employment Assistance, Port Clinton
- Energy Equipment Systems & Supplies, Port Clinton
- Engine & Motor Equipment & Supplies, Port Clinton
- Engineer & Architect Services, Port Clinton - Engineering & Architecture Service
- Engineers - Water & Piping, Port Clinton - Water Supplies
- ENT, Port Clinton - Ears Nose & Throat Doctors, Physicians & Surgeons
- Entertainment & Recreation, Port Clinton
- Episcopal Churches, Port Clinton
- Escrow Service, Port Clinton
- Estate And Property Attorneys & Lawyers, Port Clinton
- Estate And Property Attorneys & Lawyers, Port Clinton
- Estate And Property Lawyers & Attorneys, Port Clinton
- Estate Appraisal, Liquidation & Sales, Port Clinton
- Excavation Contractors, Port Clinton - Excavating - Excavator Companies
- Excavation Equipment, Port Clinton - Excavating & Ditching Equipment
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