The idea for a "balls-out female-fronted metal band" was first formed when Kimberly Goss of Dimmu Borgir met Jesper Strömblad of In Flames whilst on tour in 1997.
Sinergy formed when the then Dimmu Borgir keyboard player Kimberly Goss met with In Flames guitarist Jesper Strömblad during a joint world tour.
The first incarnation of Sinergy was composed of them, bassist Sharlee D'Angelo (from Arch Enemy and Mercyful Fate), drummer Ronny Milianowicz and guitarist Alexi Laiho (from Children of Bodom).
Roope Latvala (founding member of Stone, one of the bands which started the heavy metal movement in Finland) assumed the position of rhythm guitarist, Marko Hietala (from Tarot) became the bassist and Tonmi Lillman was chosen as the new drummer.
In 2007 Roope Latvala performed a song with bassist Lauri Porra and drummer Janne Parviainen for the album "Guitar Heroes" featuring some of Finland's leading guitarists.