Slide About Onesti Entertainment Onesti Entertainment, founded over 35 years ago by Ron Onesti, is a world-class provider of live entertainment, concerts, theatrical shows, family entertainment and amusement parks, corporate events, festivals, casino shows, and unique dining experiences. With properties in St. Charles, Highwood, Union, and Des Plaines, the industry powerhouse has become a favorite destination for drinking, dancing, and dining throughout Chicagoland.