- Eaves Troughs, Renfrew
- Economic Development, Renfrew
- Education, Renfrew
- Education & Information Services, Renfrew
- Educational Facilities, Renfrew
- Electric Companies, Renfrew
- Electric Generating Plants, Renfrew
- Electric Motor Repair & Service, Renfrew
- Electric Motors & Generators , Renfrew
- Electrical Control Systems & Materials, Renfrew
- Electrical Supplies, Parts & Equipment, Renfrew - Wholesale & Manufacturers
- Electricians, Renfrew - Electrical Contractors
- Electrolysis Treatments, Renfrew
- Electronic Equipment, Parts & Supplies, Renfrew
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- Electronics Repair & Maintenance , Renfrew
- Electronics Stores, Renfrew
- Elementary Schools, Renfrew
- Embroidery, Renfrew
- Emergency Services, Renfrew
- Emergency Victim Services, Renfrew
- Employee Benefit & Compensation Plans, Renfrew
- Employment Agencies, Renfrew - Staffing Agencies
- Engineer & Architect Services, Renfrew - Engineering & Architecture Service
- Entertainment & Recreation, Renfrew
- Entertainment Services, Renfrew
- Ethnic Food Stores, Renfrew
- European Cuisine, Renfrew
- Excavation Contractors, Renfrew - Excavating - Excavator Companies
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