1. BasiConcepts
  2. Benchmarq
  3. BethelTronix (BTI)
  4. Bliley
  5. Bookham Technology
  6. Brilliance Semiconductor (BSI)
  7. Broadcom
  8. Brooktree (-> Conexant)
  9. Burr-Brown
  10. Butterfly DSP
  11. CAEN Microelectronics
  12. California Eastern Laboratories (CEL)
  13. California Micro Devices
  14. Calogic
  15. Cambridge Silicon Radio (CSR)
  16. Catalyst Semiconductor
  17. Celeritek
  18. Celeritous
  19. Centillium
  20. Central Semiconductor
  21. Centro Vision
  22. Cherry Semiconductor
  23. Chrontel
  24. Cimaron Communications
  25. Cirrus Logic
  26. Clear Logic
  27. C-Media Electronics (CMEI)
  28. Cologne Chip Designs
  29. Comatlas
  30. Comlinear (-> National)
  31. CompuLab
  32. Conexant (was Rockwell)
  33. Consumer Microcircuits (CML)
  34. CoolRISC
  35. Coto Technologies
  36. CP Clare
  37. Cree Research
  38. Crystal Semiconductor
  39. Cybernetic Micro Systems
  40. CyberTouch
  41. Cypress
  42. Cyrix