Olympia, Washington's C Average have been conjuring heavy and doom-laden metal since 1996, drawing on medieval and fantasy themes. They are perhaps best known for performing a live score to the 1922 silent horror film Nosferatu alongside cellist Lori Goldston at the Capitol Theater.

Baltimore heavy metal and hard rock act C.I.A. were active from around 1980 and released material through Fat Daddy Records, with a track appearing on the local 98 Rock Vol. II compilation in 1982.

This U.S. C.I.A. blended heavy, power, and thrash metal and released material through Next Productions before splitting up after a short run beginning in 2021.

New York City thrash and hardcore crossover act C.I.A. were active from 1989 and tackled themes of politics, society, and destruction, placing tracks on compilations through Relativity Records, Combat Records, and the Speed Kills series.

Instrumental melodic heavy metal project from Kernersville, North Carolina, treating the guitar as the sole vocal voice in place of a singer.

Veteran heavy/power metal band from San Diego, California active since 1992 who persevered through the grunge era and went on to open for Iron Maiden, Dio, and Judas Priest, anchored by vocalist Sean Peck and guitarist Dave Garcia.

Ohio heavy metal band whose lone demo surfaced in 1989 before the group quietly dissolved, leaving behind a cassette-only snapshot of late-80s underground metal.

Heavy metal band from Uintah, Utah, active since 2008, pursuing a traditional metal direction on their own terms without label backing.

Salt Lake City's Call of Madness fuse melodic death and traditional heavy metal into a dynamic sound that has been active since 2016, balancing brutality with accessible hooks.

San Diego's Call of the Wild blend heavy, doom, and stoner metal with hard rock into a thick, riff-driven sound that has been rolling since 2020.

Seattle's Camarosmith blended heavy and stoner metal with hard rock swagger during their run in the 2000s, later surfacing on Weedian Records' 2023 Trip to Washington compilation.

Austin heavy and power metal outfit that blended classic metal songcraft with the soaring energy of the power metal tradition.

Burlington, Vermont heavy metal and hard rock act that released at least one single before dissolving.

Maine death metal outfit active in the mid-to-late 1990s on Rattle Snake Records, playing straightforward death metal before disbanding — distinct from the Minnesota thrash act of the same name.

Juneau, Alaska thrash and heavy metal band formed around 2020 that released material independently before splitting up.