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- Environmental Systems Research Institute (Redlands, Calif.)27
- Economic and Social Research Institute (Reston, Va.)17
- Tele Atlas North America, Inc.12
- TomTom North America, Inc.11
- United States Geological Survey10
- ESRI8
- United States. Bureau of Transportation Statistics6
- National Atlas of the United States and the United States Geological Survey4
- U.S. Department of Commerce, Census Bureau, Esri3
- United States. Bureau of the Census.3
- Department of Commerce, Census Bureau, Geography Division2
- U.S. Census Bureau, Geography Division2
- U.S. Geological Survey2
- United States. Bureau of the Census. Geography Division2
- United States. Department of Transportation. Research and Innovative Technology Administration2
- Economic and Social Research Institute1
- Esri1
- International Steering Committee for Global Mapping (ISCGM)1
- National Park Service1
- Tele Atlas (Firm : U.S.)1