EXMORTIS was formed in mid 1987 by guitarist/vocalist Brian Werking who recruited ex-bassist Chris Wiser. A few months later drummer Aantar Lee Coates and guitarist Ted Hartz joined the band. Shortly after, Ted Hartz was released due to personal reasons.
After a few short months of continuous rehearsing, Exmortis tried out vocalist Mike Simons. He seemed to fit the style that Exmortis was looking for so they kept Mike in the band. He brought kind of a Kreator style vocal presence to the band which Exmortis seemed to like.