- Education, Portland
- Educational Facilities, Portland
- Electrical Supplies, Parts & Equipment, Portland - Wholesale & Manufacturers
- Electricians, Portland - Electrical Contractors
- Electronic Repair Shops , Portland
- Electronics Repair & Maintenance , Portland
- Electronics Stores, Portland
- Elementary Schools, Portland
- Embossing, Stamping & Engraving, Portland
- Embroidery, Portland
- Emergency Rooms, Portland - Urgent Care Centers
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- Emergency Services, Portland
- Energy Conservation Consultants, Portland
- Energy Services, Portland
- Engineer & Architect Services, Portland - Engineering & Architecture Service
- Entertainers & Groups, Portland
- Entertainment & Recreation, Portland
- Entertainment Services, Portland
- Environmental Consultants, Portland - Ecological Consulting
- Environmental Engineers, Portland
- Episcopal Churches, Portland
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