1. 3Dfx
  2. 3Dlabs
  3. 8x8
  4. Acapella
  5. Acard Technology
  6. Arcotronics
  7. Actel
  8. Adaptive Networks
  9. Advanced Communication Devices (ACD)
  10. Advanced Custom Sensors
  11. Advanced Linear Devices
  12. Advanced Micro Devices (AMD)
  13. Advanced Monolithics (AMS)
  14. Advanced Power Technology (APT)
  15. Advanced Semiconductor (ASI)
  16. Alcatel Microelectronics
  17. Alcor Micro
  18. Allayer Technologies
  19. Allegro Microsystems
  20. Alliance Semiconductor
  21. Alpha Industries
  22. Alpha Microelectronics
  23. Alpha Semiconductors
  24. Altera
  25. American Microsystems (AMI)
  26. Anadigics
  27. Analog Devices
  28. Analogic
  29. AnchorChips
  30. Apex Microtechnology
  31. Applied Micro Circuits Corporation (AMCC)
  32. Arizona Microtek
  33. Asahi Kasei Microsystems (AKM Semiconductor)
  34. Aspec Technology
  35. Astec Semiconductor
  36. Atmel
  37. Audio Processing Technology (APT)
  38. AudioCodes
  39. AuraVision
  40. Austin Semiconductor (ASI)
  41. Austria Mikro Systeme (AMS)
  42. Authentec
  43. Avance Logic (-> Realtek)
  44. AverLogic Technologies