Stiefel has been a guest teacher and a coach for many institutions including the Paris Opera Ballet, The National Ballet of Canada, The Norwegian National Ballet, The Royal Ballet School, The Australian Ballet School, American Ballet Theatre II, Ballet Zürich, Ballet Bordeaux, Opera National Bucharest, John Cranko Schule, Berlin State Ballet School, Dance Theatre of Harlem, ABT’s Jacqueline Kennedy Onassis School, and The School of American Ballet.

 

Stiefel is currently a Principal Guest Instructor at American Ballet Theatre, the ABT Studio Company, and ABT's JKO School.