| Alabama Cooperative Extension Service | New Jersey - Rutgers Cooperative Extension |
| Arizona Cooperative Extension | New Mexico State University Cooperative Extension Service |
| Arkansas Cooperative Extension Service | New York - Cornell Cooperative Extension |
| California Cooperative Extension - Central Valley Region | North Carolina Cooperative Extension Service |
| California Cooperative Extension - UC Davis | North Dakota State University Extension Service |
| Colorado State University Cooperative Extension | Ohio State University Extension |
| Connecticut Cooperative Extension | Oklahoma Cooperative Extension Service |
| Georgia Cooperative Extension Service | Oregon State University Extension Service |
| Idaho Cooperative Extension System | Penn State Cooperative Extension |
| Illinois Cooperative Extension Service | Rhode Island Cooperative Extension |
| Indiana - Purdue University Cooperative Extension Service | South Carolina - Clemson University Cooperative Extension Service |
| Iowa State University Extension | South Dakota Cooperative Extension Service |
| Kansas State University Extension Systems | Tennessee Agricultural Extension Service |
| Maine Cooperative Extension | Texas Agricultural Extension Service |
| Maryland Cooperative Extension Service | University of Minnesota Extension Service |
| Massachusetts Extension | University of Nevada Cooperative Extension |
| Michigan State University Extension | Utah State University Extension |
| Missouri - Outreach and Extension | Virginia Cooperative Extension |
| Missouri - University Extension | Washington State University Cooperative Extension |
| Nebraska Cooperative Extension | West Virginia University Extension Service |
| New Hampshire Cooperative Extension | Wisconsin Cooperative Extension |
