- Education, North Tonawanda
- Education & Information Services, North Tonawanda
- Electric Companies, North Tonawanda
- Electric Motors & Generators , North Tonawanda
- Electrical Control Systems & Materials, North Tonawanda
- Electricians, North Tonawanda - Electrical Contractors
- Electrolysis Treatments, North Tonawanda
- Electronic Research, Design & Development, North Tonawanda
- Electronics Stores, North Tonawanda
- Elevator Engineers, North Tonawanda
- Elevator Repair, North Tonawanda
- Embroideries Uniform, North Tonawanda
- Embroidery, North Tonawanda
- Emergency Services, North Tonawanda
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- Employment Agencies, North Tonawanda - Staffing Agencies
- Employment Services, North Tonawanda
- Engine Parts & Equipment, North Tonawanda
- Engineer & Architect Services, North Tonawanda - Engineering & Architecture Service
- Engineering Consultants, North Tonawanda - Consulting Engineers
- Engineers Industrial, North Tonawanda
- Entertainment & Recreation, North Tonawanda
- Episcopal Churches, North Tonawanda
- European Cuisine, North Tonawanda
- Event Planning & Coordinating Consultants, North Tonawanda
- Excavation Contractors, North Tonawanda - Excavating - Excavator Companies
- Exercise Equipment Stores, North Tonawanda - Fitness & Gym Equipment
- Exporters, North Tonawanda
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