- Amador County Information Technology Department, GIS Division3
- Arkema, Katie3
- Bruns, Terry R.3
- California Department of Fish and Wildlife Marine Region GIS Lab3
- California Department of Forestry and Fire Protection (using data from BOR, DFG, and DOC FMMP)3
- California. Division of Bay Toll Crossings3
- California. Health and Human Services Agency3
- Chin, John L.3
- Ciampi, Mario J. (Mario Joseph), 1907-20063
- City of Berkeley 3
- Colton, J. H. (Joseph Hutchins), 1800-18933
- Conrad, J. E. (Julian Eduard)3
- Contra Costa County3
- County of Sonoma GIS Central3
- County of Sonoma ISD GIS Central3
- DPT3
- Danmarks og Grønlands geologiske undersøgelse3
- Delarochette, L. (Louis), 1731-18023
- Department of Information Technology, Solano County 3
- Department of Telecommunications and Information Services3
