Territory: The South, concentrated in Texas
Approximate membership: More than 5,000

They say everything’s bigger in Texas, and the Bandidos Motorcycle Club is no exception. With more than 5,000 members worldwide, this San Leon-based gang is one of America’s biggest one-percenter clubs. Their specialty is drug smuggling across the U.S.-Mexican border, and their members have been accused of multiple murders. The FBI considers them one of the Big Four outlaw motorcycle clubs – a designation legitimized by their involvement in the Waco gun battle.