- Advertisers Press
- AFA Transport
- Affiliated Auctioneers Inc
- Affordable Cremation Svc Inc
- Affordable Masonry & Ironworks
- Ai-Ping Liu Restaurant
- Albright & Wallace
- Aldo's Old Fashioned Italian
- Alef Packaging Co
- Alex's Furniture Repair
- Alina's Place
- All American Limo Inc
- All American Line
- All Seasons Auto Repairing
- Allegheny Apothecary
- Allegheny Ave Chiropractic Ctr
- Allegheny Avenue Medical
- Allegheny Avenue Pediatric Ctr
- Allegheny Child Care Academy
- Allegheny Childcare Academy
- Allegheny Laundromat
- Allegheny New Pizza
- Allegheny Restaurant Equipment
- Allegheny Sunoco A Plus
