The REACH, a project of the Richland Public Facilities District, was created by a dynamic partnership of local, state, and federal governments working in association with the following community partners:
- Battelle
- Benton County Public Facilities District
- City of Richland
- Columbia River Exhibition of History, Science, and Technology (CREHST)
- Educational Service District 123
- Energy Northwest
- Friends of the Hanford Reach National Monument
- Lower Columbia Basin Audubon Society
- Tri-Cities Visitor and Convention Bureau
- U.S. Fish and Wildlife Service
- Washington Department of Community Trade and Economic Development
- Washington State Parks and Recreation Commission