OSI was an American progressive rock band formed in 2002 by guitarist Jim
Matheos of Fates Warning. The project began when Matheos recruited Kevin Moore
to contribute to his solo album, which became OSI's debut. Their first album,
Office of Strategic Influence, was released in 2003, through InsideOut Music.
The band continued to release albums, including Free in 2006 and Blood in 2009.
In 2012, OSI's fourth album, Fire Make Thunder, was released under Metal Blade
Records. They became inactive the same year.