- Advanced Window Ctr
- Against The Odds
- Agile Technical Svc
- AHEDD
- Aiello & Cobb Dental Assoc
- AIG Financial Advisors
- Airserco Inc
- Airtek Inc
- Akzo Nobel Coatings Inc
- Alan Israel
- Albensi Dental Laboratory
- Alexanders Althletic Club
- Alfieri Scrap Metal Co Inc
- Alicia Baum MD
- All American Appraisal Svc
- All Kare Chiropractic
- All Service Settlement Inc
- All Sports Trophy Co
- Allegheny East Mh-Mr Ctr Inc
- Allegheny Shotokan Karate Club
- Allen F Baughman Landscaping
