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- Juniata County2
- PA Department of Conservation and Natural Resources2
- Pennsylvania Bureau of Topographic and Geologic Survey, Dept. of Conservation and Natural Resources2
- Rails-to-Trails Conservancy2
- U.S. Geological Survey2
- Allegheny County Division of Computer Services Geographic Information Systems Group1
- Erie National Wildlife Refuge1
- PA City of Philadelphia1
- Pennsylvania Department of Transportation, Bureau of Planning and Research, Geographic Information Division1
- U.S. Environmental Protection Agency, Office of Solid Waste and Emergency Response, Center for Program Analysis1
- USDA-FSA-APFO1
- University of Vermont Spatial Analysis Laboratory1