- Advanced Marketing Solutions
- Advanced Recycling Tech Inc
- Advantage Capital
- Advantage Sport & Fitness
- Advantage Sport & Fitness Inc
- Aerotek
- Aerus Electrolux
- Aes Chambersburg
- Aesi/Stediwatt Pure Power Sys
- Affordable Mini Storage
- Ag Choice Farm Credit
- Agway Energy Products
- Air Hill Brethren In Christ
- Air Hill-Lawn FURNITURE LLC
- Air View Photo Inc
- AJB Typing Svc
- Alan C Hood & Co
- Alan's Vacuums
- Albion Books & Consolidation
- Alex C Ferguson Co Inc
- Alex E Fergusson Co Inc
- Alison Wengert Certified Mssg
- All Brand Vacuum
- All Land Svc Inc
- All Occasion Cakes Plus
- All Occasion Florist
- All Seasons Lawn Care
- All Star Computers & Tech
- All Star Grill
- Allegany Optical
- Allegany Optical
- Alleman's Furniture Stripping
- Allen Distribution
- Allen Distribution
