- Auto repair shop
- Amusement center
- Adult education school
- Accountant
- Appliance repair service
- Accounting firm
- Antenna service
- Audio visual equipment repair service
- ATM
- Animation studio
- Animal hospital
- Air conditioning repair service
- Archive
- Anesthesiologist
- Architect
- Auto insurance agency
- Appraiser
- Auto machine shop
- Aerial photographer
- Asian grocery store