Members
- United States
- Canada
- McMaster University
- University of British Columbia
- University of Calgary
- University of Toronto
- University of Waterloo
- University of Western Ontario
- Germany
Observer
- United Kingdom
Host
CCAT operates in the Parque Astronómico Atacama in northern Chile under the auspices of the Programa de Astronomía, a program of the Comisión Nacional de Investigación Científica y Tecnológica de Chile (CONICYT).