- Air conditioning store
- Architecture firm
- Animal hospital
- Aged care
- Auto insurance agency
- Adventure sports
- Automobile storage facility
- Archery range
- Archery store
- Art restoration service
- Animal shelter
- Animal protection organization
- ATV dealer
- Appliance parts supplier
- Appliances customer service
- Acupuncture clinic
- Acupuncturist
- Animal feed store
- Agricultural organization
- Appraiser