| Bad Dog Theatre Company: Provides workshops and training in the Toronto, Canada area. Online schedule and workshop FAQ. |
| bang: Hollywood improv performance space and teaching facility. |
| BATS Improv School: Offers both short and long form classes in the San Francisco Bay Area. Complete schedule, instructor bios, and online registration. |
| Comedy Dojo: Los Angeles based Chris Barnes teaches various forms such as games, scenes, and long form. |
| ComedySportz Chicago: Offers a 4 level adult workshop series culminating in audtions for the live performance troupe. |
| ConArtists: Auckland wide program training teachers, leaders, and students in the competitive improv format. |
| East Bay Improv: Albany, California based school featuring an online schedule of adult training workshops. |
| Ed Reggi: Offers Spolin Theatre Games primarily in Missouri to children, adults, and special seniors only classes. |
| Edge Improv: Brisbane, Australia based workshops for those 16 and older. Online schedule and registration information. |
| Hal Peller: Teaching teens, actors, non-actors, and corporate since 1981 in New York City. |
| Heroes School of Improv: Austin, Texas affiliate of Theatresports teaching classes at all levels. |
| Improvisation for the Spirit Workshop: A workshop for anyone seeking to nourish their creativity through comedy improv games, theatre, yoga and fun. |
| Keith Johnstone: Courses taught by the Calgary, Alberta based founder of Theatresports, Micetro Impro, Gorilla Theatre, and The Life Game. |
| Learn Improv: Offers descriptions, instructions and tips on games and exercises, as well as information for putting on a show. |
| Loose Moose Theatre Company: Two week intensive workshop bringing together improvisers from around the globe. |
| Los Angeles Theatresports: Three tracks of training as well as workshops and specialty classes. Schedules, course details, and directions. |
| National Comedy Theatre Los Angeles: Professional, amateur, high school, and teen training. Offers online schedule and registration. |
| National Comedy Theatre San Jose: Offers workshops for adults, children, and teens in the heart of Silicon Valley. Online schedules and registration. |
| QT! Improv: New York City drop-in workshops taught by John Swist. |
| Screaming Frog Productions: Offers adult training heavily influenced by the works of Viola Spolin, and Keith Johnstone. Based in Los Angeles, California. |
| Second City: Offers training to children and adults at all experience levels in Chicago, Detroit, Las Vegas, Los Angeles, New York, and Toronto. |
| Spolin Center: Seattle, Washington based workshops from one of the mothers of improv comedy. |
| Take A Bow Productions: Training for all ages in Chatham, Ontario. Includes list of games, photo gallery, course descriptions and pricing. |
| The Invisible Bus: Houston theater that specializes in classes for kids and adults. Includes .pdf files, class profiles and schedule. |
| Ventura Area TheatreSports: Southern California drop-in adult workshops. No registration required. |
| Wisconsin Theater Game Center: Door County, Wisconsin improv school teaches based on the work of Viola Spolin. |