PROFESSIONAL ORG
IATSE International
The Stagehand Union of the USA and Canada
IATSE has over 300 Locals spread across North America
ESTA
Industry Association
Originally called the Theatrical Dealers Association
PLASA
Industry Association, UK-based with an International Focus
(PLASA and ESTA were once merged)
RELATED PROFESSIONAL ORG
FMA
Fabricators & Manufacturers Association
For metal fabricators, from big corporate entities to custom job shops