Raging Stallion Studios based in San Francisco, California, is a major adult film studio and one of the world's largest producers of gay pornography. It was begun by Chris Ward and J. D. Slater; Michael Brandon later became a co-owner. Michael Brandon starred in several Raging Stallion films before deciding to buy into the company. All three have produced and directed video features released by the company. Ward focused on doing fetish features with fisting; Slater has a "Centurion Muscle" line; Brandon did a "Monster Bang" line. Slater also worked on soundtracks for the films, and has released some of this music on CDs.