- World Wildlife Fund (WWF)39
- Virtual Shanghai Project37
- Cochrane, Guy R.35
- Erdey, Mercedes D.27
- United States Engineer Office26
- United States. Army. Corps of Engineers26
- GreenInfo Network (Firm)22
- Bay Area Open Space Council21
- Bretz, Carrie K.21
- Conservation Lands Network21
- San Francisco Bay Area Upland Habitat Goals Project21
- San Francisco Redevelopment Agency (San Francisco, Calif.)21
- National Geophysical and Solar-Terrestrial Data Center19
- Johnson, Samuel Y.16
- National Atlas of the United States14
- California. Department of Fish and Game. Marine Resources Region12
- Kelso, Nathaniel Vaughn12
- Patterson, Tom12
- Arrowsmith, John, 1790-187310
- Finlayson, David P.10
