- USDA-FSA Aerial Photography Field Office8
- United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS), Research and Development Division, Geospatial Information Branch, Spatial Analysis Research Section (SARS)8
- University of Vermont Spatial Analysis Laboratory8
- City of Philadelphia7
- Delaware Valley Regional Planning Commission7
- PAMAP Program, PA Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey7
- Steve Rosenberry7
- United States Department of Agriculture, National Agricultural7
- Wayne L. Myers, Joseph A. Bishop7
- Pennsylvania Bureau of Topographic and Geologic Survey, Dept. of Conservation and Natural Resources6
- Pennsylvania Dept. of Environmental Protection, Bureau of Mining and Reclamation (BMR)6
- U.S. Department of Commerce6
- U.S. Geologic Survey; Pennsylvania Bureau of Topographic and Geologic Survey6
- City Planning Commission (PCPC) Department - GIS Division5
- Lancaster County5
- Penn State ORSER/ERRI5
- Philadelphia City Planning Commission5
- Southeastern Pennsylvania Transporation Authority (SEPTA)5
- Susquehanna River Basin Commission (SRBC)5
- Western Pennsylvania Conservancy5