What is CSz Philly? A comedy theater? An improv school? A business solution? Yes! For over 25 years, CSz Philadelphia has use ... d improvisation to produce fun, immersive experiences that brings laughter to the people of Philadelphia. In the classroom we teach our students how to use improv to entertain and excite audiences. In the boardroom, we teach professionals how to communicate, listen, and take risks using Applied Improvisation. On stage we entertain everyone with hysterical comedy shows including ComedySportz, Philadelphia’s longest-running show. CSz Philadelphia is located at The Adrienne Theater in the Rittenhouse section of Center City Philadelphia, across from the famed Roxy Movie Theater and Helium Comedy Club. CSz Philadelphia is a part of CSz Worldwide, a global network of companies for organizations needing entertainment, training, and events marketing solutions. read more