- Education, Oxford
- Educational Consultants, Oxford
- Educational Facilities, Oxford
- Electric Companies, Oxford
- Electric Transformers, Oxford
- Electrical Control Systems & Materials, Oxford
- Electricians, Oxford - Electrical Contractors
- Electronics Stores, Oxford
- Elementary Schools, Oxford
- Embroidery, Oxford
- Emergency Services, Oxford
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- Employment Agencies, Oxford - Staffing Agencies
- Energy & Conservation Agencies, Oxford
- Energy Management Systems & Products, Oxford
- Engineer & Architect Services, Oxford - Engineering & Architecture Service
- Engineering Equipment & Supplies, Oxford
- Engineers Industrial, Oxford
- Entertainment & Recreation, Oxford
- Environmental Consultants, Oxford - Ecological Consulting
- Episcopal Churches, Oxford
- European Cuisine, Oxford
- Excavation Contractors, Oxford - Excavating - Excavator Companies
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