From the Adoption Exchange Website:

The Adoption Exchange is a non-profit 501(c)(3) child welfare organization founded in 1983 to work for safety and permanence in the lives of foster children. Initially an exchange point for caseworkers to discuss placement of children with families seeking to adopt in the Rocky Mountain region, the organization has grown considerably over the years and now impacts national trends in child welfare, employs over fifty paid staff and counts on scores of volunteers to carry out its mission.

Headquartered in Colorado, The Adoption Exchange offices now operate in Missouri, Utah, New Mexico, and Nevada. Oklahoma, South Dakota and Wyoming are also participating member states, and The Adoption Exchange's National Education Center has established a national presence.