In April 2012 Fender Musical Instruments Corporation named Koch one of the top 10 unsung guitarists.

In April 2023 The Wisconsin Area Music Industry announced that Koch would be inducted into the WAMI Hall of Fame.

[2] Koch won first place in the 1989 Bluesbreaker Guitar Showdown judged by singer/guitar player Buddy Guy.

Koch and the Tone Controls won five Wisconsin Area Music Awards for Blues Artist of the Year (1993, 1995, 1996, 1997, and 1998).

[7] Koch recorded a live album, Greg Koch and Other Bad Men Live on the Radio, with bass player Roscoe Beck, vocalist Malford Milligan and drummers John Calarco[8] and Tom Brechtlein.

[18] In April 2012 Fender Musical Instruments Corporation named Koch one of the top 10 unsung guitarists.

When a celebration was held to honor the 100th birthday of guitar pioneer Les Paul (who died at age 94) Koch was invited to play.

[21][22] In April 2023 The Wisconsin Area Music Industry announced that Koch would be inducted into the WAMI Hall of Fame.