1. Autodesk/CadSoft (Eagle)
  2. Autodesk123D (formerly Circuits.io) 
  3. Advanced Microcomputer Systems (ASC)
  4. Altium
  5. AutoTRAX
  6. Baas Electronic-s
  7. CAD-UL Electronic Services
  8. CADint
  9. Cadence Design Systems
  10. Capilano Computing (DesignWorks)
  11. Chunk Systems
  12. Circuit Mind
  13. CometCad
  14. Computamation Systems Ltd. (VuTrax Electronics)
  15. CSieda Developer Group
  16. DalTools
  17. DesignSoft
  18. DesignSpark
  19. Downstream Technologies
  20. EasyLogix Software Development
  21. EasyEDA
  22. Elgris Technologies
  23. EMA Design Automation
  24. FreePCB
  25. Fritzing
  26. gEDA
  27. Intercept Technology
  28. KiCAD
  29. Konekt
  30. Labcenter
  31. Layo1 PCB
  32. LHP Software
  33. McCAD
  34. MeowCAD
  35. MicroCad
  36. Novarm (DipTrace)
  37. Number One Systems
  38. Okada Hitoshi
  39. Osmond PCB
  40. Patchr
  41. PCB Droid
  42. PCB Elegance
  43. PCB Design and Fab
  44. PCBWeb
  45. Pulsonix
  46. Quadcept
  47. Quilter
  48. Siemens (Mentor))
  49. TCI Software
  50. TechSoft
  51. Tsien
  52. Upverter (Altium)
  53. Valydate
  54. Visionics
  55. VuTrax
  56. ZenitPCB
  57. Zuken
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