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.