The International Alliance of Theatrical Stage Employees

The International Alliance of Theatrical Stage Employees, Moving Picture Technicians, Artists and Allied Crafts of the United States, Its Territories and Canada, known as simply the International Alliance of Theatrical Stage Employees, (IATSE, pronounced "eye-yahtzee," or IA for short), is a Canadian-American labor union representing over 150,000 technicians, artisans, and craftspersons in the entertainment industry, including live theatre, motion picture and television production, and trade shows in the United States and Canada. It was awarded the Tony Honors for Excellence in Theatre in 1993.

The International Alliance of Theatrical Stage Employees[iatse.net]
Wiki[en.wikipedia.org]
Locals[iatse.net]