| American Roller Derby League: A professional league based in Northern California, primarily promoting the Bay City Bombers team. |
| American Roller Skating Derby of Northern California: Mixed-gender professional league primarily promoting the Bay Bombers team. (supersedes old site) |
| Illinois Roller Racers League (IRRL) of Central Illinois: Mixed-gender professional league announced in early 2006. |
| National Roller Derby League (NRDL): Established c.1995 by former Roller Games skater Lou Sanchez and initially promoted as Roller Derby Inc.; this mixed-gender, professional league plays occasional exhibition matches, mostly in Southern California. The current site promotes several teams, including the San Francisco Bay Bombers. |
| The L.A. T-Birds: The sole remaining team on the Roller Games International league owned by Bill Griffiths, Sr.; this mixed-gender, professional team plays occasional exhibition matches, mostly in Southern California. |