- United States. Bureau of the Census. Geography Division15
- GIS Lab, Newman Library, Baruch CUNY11
- California. Department of Transportation10
- Thomas, William G., 1964-6
- Navarro, Fernando5
- Powell, Susan5
- National Atlas of the United States4
- United States. Bureau of Transportation Statistics4
- County of San Mateo Information Services Department3
- Hunt, Raquel3
- Sacramento County GIS3
- Instituto Nicaragüense de Estudios Territoriales2
- Kelso, Nathaniel Vaughn2
- Patterson, Tom2
- Sāzmān-i Naqshahʹbardārī-i Kishvar2
- Albania. State Authority for Geospatial Information1
- Azerbaijan. State Committee Land and Cartography1
- Botswana. Department of Surveys and Mapping1
- California. Metropolitan Transportation Commission1
- Centre de recherche géographique et de production cartographique (Brazzaville, Congo)1