Vectors
- American Megatrends
- American Industrial Properties
- AMD K6 III Processor
- AMD Athlon processor
- AMD Athlon processor
- Amcol International
- Amazonia
- Alltrista
- Allianz
- Alex
- Albank
- Alaris Medical Systems
- Akva-Color
- AKKO Professional
- Aikos
- Aficio
- Affinity
- AFC
- Aerotour
- AeroCentury
- Advanced Magnetics
- Ade
- Acme United
- Accent Color Sciences