- Adult day care center
- Animal protection organization
- Art restoration service
- Adult education school
- Angler fish restaurant
- Amusement park
- Accounting firm
- Animal hospital
- Archaeological site
- Architects association
- Auto body shop
- Adventure sports
- Air duct cleaning service
- Arboretum
- Auto machine shop
- Auto repair shop
- Aromatherapy class
- Auto wrecker
- Art cafe
- Advertising agency