- Engraver
- Electrical supply store
- Envelope supplier
- Engineer
- Electronic parts supplier
- Electronics company
- Electronics manufacturer
- Engineers' merchant
- Educational supply store
- Electrical repair shop
- Escape room center
- Event technology service
- Electrical appliance wholesaler
- Electrical installation service
- Electrician
- Exhibition planner
- Electrical wholesaler
- Electronics wholesaler
- Electronics repair shop
- Equipment rental agency