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)

USITT

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ABTT

The Stagehand Association of the UK

OISTAT

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FMA

Fabricators & Manufacturers Association

For metal fabricators, from big corporate entities to custom job shops