- Art dealer
- Art restoration service
- Athletic field
- Auto parts manufacturer
- Antique store
- Antique furniture restoration service
- Allergist
- Antique furniture store
- Aquaculture farm
- Apartment complex
- Auto accessories wholesaler
- Aquarium
- Aquarium shop
- Animal park
- Airport shuttle service
- Athletic park
- Audiologist
- Airport
- Alternative medicine practitioner
- Air duct cleaning service