It follows a list of major SPICE simulation software, commercial and free:
| Company | SPICE software | Image | software license |
|---|---|---|---|
 | Altium Designer |  | Commercial |
 | Cadence OrCAD Solutions |  | Commercial |
 | TINA Design Suite |  | Commercial |
 | 5Spice |  | Commercial |
 | ICAP/4 |  | Commercial |
 | Proteus |  | Commercial |
 | LTSpice IV |  | Free |
 | NI Multisim |  | Commercial |
 | TopSpice |  | Commercial |
 | Micro-Cap |  | Commercial |
 | Spice Opus |  | Free |
 | ViaDesigner Suite |  | Commercial |
 | EDWinXP |  | Commercial |