- Advanced Roofing Systems
- Advantage Environmental
- Advantica
- Aegis Enterprise
- Aero Energy
- Aerus Electrolux
- Aesthetic & Reconstructive
- Aflac
- Agar Welding Svc & Steel
- Airgas East Boc
- Alberto-CULVER USA Inc
- Albright's Concrete Contractor
- Alessandra's Antiques
- Alex Minoff's Video Ctr
- Alexander Spasic Family Med
- Alexander Spring Rehab
- Alfredo Pizza & Ristorante
- All American Plazas Corporate
- All Brand Vacuum
- All State Insurance
- All Top Dogs
- Allegany Optical
- Alleghany Optical LLC
- Allen Christian Day School
- Allen Distribution
- Allen Distribution
- Allen Distribution
- Allen Distribution
