- Attraction
- Adult entertainment
- Addiction treatment center
- Archery range
- Archery store
- Adventure sports
- Air force base
- Authentic Japanese restaurant
- Architectural and engineering model maker
- Architects association
- Acupuncture school
- Alcohol retail monopoly
- Appliances
- Aggregate supplier
- Abrasives supplier
- Auditor
- Architectural salvage store
- Ammunition supplier
- Adventure sports center
- Aircraft supply store