- Advest
- Affordable Electric Inc
- African American Museum-Phil
- AHP Settlement Trust
- Aikido Kokikai
- Aikido-Center City
- Aion Manufacturing Co
- Airgas Puritan Medical Prods
- AK Mfg
- AKA Music
- Al Paul Lefton Co
- Alan KANE Music & Entrtn Inc
- Alan Paul Assoc
- Albright Administration
- Alex's Jewelers
- Allegiance Bank
- Allemann Almquist & Jones
