Jeff Simmons is listed in the credits for the following albums:
| Year | Artist | Album | Role |
|---|---|---|---|
| 1988 | Various Artists | California Metal Volume II | Assistant Engineer |
| 1988 | Petra | On Fire | Assistant Engineer |
| 1989 | Leviticus | Knights of Heaven | Assistant Engineer |
| 1989 | Mastedon | It's a Jungle Out There | Engineer |
| 1989 | Petra | Petra Praise: The Rock Cries Out | Assistant Engineer |
| 1989 | Guardian | First Watch | Engineer |
| 1990 | Mastedon | Lofcaudio | Engineer |
| 1990 | Undercover | Balance of Power | Engineer, Editing |
| 1990 | Guardian | Fire And Love | Engineer |
| 1990 | Michael Gleason | Children of Choices | Engineer |
| 1990 | Petra | Beyond Belief | Assistant Engineer |
| 1991 | Mark Pogue | Restoration | Assistant Engineer |
| 1991 | Mark Pogue & Fortress | Restoration | Assistant Engineer |
| 1991 | Rick Cua | Within Reach | Assistant Engineer |
| 1999 | Guardian | Sunday Best | Engineer |
