Artists like The Mars Volta

The Dear Hunter is an American progressive rock band originating in Providence, Rhode Island. It began as a side project of Casey Crescenzo when he was a member of the Receiving End of Sirens, before becoming his main band in 2006. The band's sound features a wide variety of instruments and styles.

Puscifer is an American rock group formed in Los Angeles by Maynard James Keenan, lead singer of Tool and A Perfect Circle. Initially Keenan was the only permanent member and he considered the project to be his "creative subconscious". Later, frequent collaborators Mat Mitchell and Carina Round became permanent members.

Rx Bandits are an American rock band based in Seal Beach, California, United States. The band formed in 1995 in Orange County, California. Initially formed as a reggae/ska band, their style overtime evolved into a hybrid of progressive rock, ska and reggae.

Lunatic Soul is a progressive rock side-project founded by Riverside vocalist and bass guitarist Mariusz Duda in 2008. Originally conceived to allow him to explore genres outside of rock, the project was described by Duda in 2014 as progressive, ambient, oriental, and electronic. Lunatic Soul has released eight albums to date. The most recent, The World Under Unsun, came out in October 2025.