Association of Science and Technology Centers
The Association of Science and Technology Centers (ASTC) is a non-profit, global organization based in Washington, D.C., in the United States, that provides professional support for science centers, museums, and related institutions. ASTC's goal is to increase awareness of the contributions its members make to their communities and the field of informal STEM learning.
Source: Wikipedia — Association of Science and Technology Centers (CC BY-SA 4.0)