Current Klamath County Cooperative Weed Management Area participants include:

• Cascade Pacific Resource Conservation & Development
• Green Diamond Resource Company
• Klamath Soil & Water Conservation District
• Lake County Cooperative Weed Management Area
• Oregon Department of Agriculture
• U.S. Bureau of Land Management - Lakeview District
• U.S. Bureau of Reclamation
• U.S. Fish & Wildlife Service - Klamath Basin National Wildlife Refuge Complex
• U.S. Forest Service - Fremont-Winema National Forest
• Wilson Herbicide