- San Joaquin County, Community Development, Geographic Information Systems28
- Smith, Walter H. F.28
- United States. Bureau of Transportation Statistics28
- Wessel, Paul28
- von Dohlen, Jerry28
- County of San Mateo Information Services Department27
- Sacramento County GIS26
- Inyo County (Calif.). Information Services Department25
- California. Metropolitan Transportation Commission21
- GLIMS19
- Stackhouse, Cecil17
- Nevada County (Calif.). Geographic Information Systems16
- Vestra Resources Inc. Redding, CA16
- Community Development Agency, County of Marin, California15
- County of Marin15
- Alameda County Registrar of Voters 14
- Armstrong, Jake H.14
- United States. National Oceanic and Atmospheric Administration14
- Department of Conservation & Development, Contra Costa County13
- Riverside County (Calif.). Geographic Information Services12
