In addition to his work with The Vows, Pettibone is also the vocalist in the sludge/crust influenced metal band Iamthethorn, who are signed to Goodfellow Records.

Pettibone appeared on the Bleeding Through song "Rise" on the Portrait of the Goddess album.

He has also contributed backing vocals on the Botch EP An Anthology Of Dead Ends, as well as the Fall From Grace single "Last Straw".

Pettibone provided backing vocals on "Cutter", a track from the 2009 Converge album, Axe to Fall.

working as production manager at El Corazon (formerly The Off Ramp) in Seattle, Washington.