11 Biggest Gangs in America

10. Hells Angels

This criminal group is operating all over the U.S. The most famous biker gang in the world, Hells Angels ride their loud Harleys and do many kinds of illegal businesses across the U.S. since 1948.  The gang’s influence is enormous, spreading to the other continents. Countries like Germany, Spain, and the United Kingdom have their operating branches of Hells Angels. 2,500 members of the gang are involved in all sorts of criminal activities, including prostitution, drug dealing and extortion.