| Musician | Appearances |
|---|---|
| Geoff Downes | 10 albums |
| John Payne | 6 albums |
| Steve Howe | 5 albums |
| Carl Palmer | 5 albums |
| John Wetton | 4 albums |
| Mike Sturgis | 3 albums |
| Guthrie Govan | 2 albums |
| Luís Jardim | 2 albums |
| Mandy Meyer | 2 albums |
| Simon Phillips | 2 albums |
| Al Pitrelli | 2 albums |
| Elliott Randall | 2 albums |
| Vinnie Colaiuta | 1 album |
| Ian Crichton | 1 album |
| Art Glynne | 1 album |
| Scott Gorham | 1 album |
| Tomoyasu Hotei | 1 album |
| Aziz Ibrahim | 1 album |
| Ron Komie | 1 album |
| Tony Levin | 1 album |
| Steve Lukather | 1 album |
| Kim Nielsen-Parsons | 1 album |
| Jay Schellen | 1 album |
| Billy Sherwood | 1 album |
| Chris Slade | 1 album |
| Pat Thrall | 1 album |