Clark Gassman is listed in the credits for the following albums:
| Year | Artist | Album | Role |
|---|---|---|---|
| 1973 | The Archers | The Archers | Arrangements |
| 1974 | Sherman Andrus | I've Got Confidence | Arrangements |
| 1974 | John Fischer | Still Life | Instrumental Arrangements, Organ, Fender Rhodes |
| 1975 | Sonny Salsbury | Backpacker's Suite | Arrangements |
| 1975 | Andraé Crouch & The Disciples | Take Me Back | Arrangements |
| 1975 | The Archers | Things We Deeply Feel | Arrangements, Moog |
| 1976 | The Cam Floria Continental Voices | Majesty & Glory | Songwriter, Arrangements, Orchestrations |
| 1976 | Annie Herring | Through a Child's Eyes | Clavinet |
| 1977 | Spirit of Love | Spirit of Love | Keyboards |
| 1977 | Pam Mark Hall | This is Not a Dream | String Arranger, Keyboards |
| 1977 | John Fischer | Inside | Keyboards |
| 1978 | John Fischer | Johnny's Cafe | Arrangements, Keyboards |
| 1978 | Evie | A Little Song of Joy for My Little Friends | Songwriter |
| 1979 | Wendell Burton | Shinin' Thru the Rain | Arranged, Keyboards, Synthesizers |
| 1980 | The Archers | Celebrate Live! | Arrangements |
| 1996 | Evie | Our Recollections | Songwriter |
