- S1990-1991 #3: University of California, Riverside (August 14, 1990–November 20, 1992)314 objects
- S1979-1980 #66: Department of Anthropology (CSU Sacramento) (May 13, 1980–July 14, 1980)232 objects
- S1974-1975 #44: California Department of Parks and Recreation/Anne Peak (January 17, 1975–December 18, 1975)127 objects
- S1991-1992 #29: United States Forest Service/James L. Boyton (May 21, 1992–August 2, 1995)91 objects
- S1980-1981 #3: Department of Anthropology (CSU Sacramento) (July 14, 1980–December 19, 1980)73 objects
- S1967-1968 #111: Department of Anthropology (UC Davis)/Jerald Jay Johnson (February 20, 1969–February 18, 1982)50 objects
- S1968-1969 #82: University of California, Davis (February 20, 1969–unknown)50 objects
- S1971-1972 #120: Anthropology (UC Berkeley)/Robert Fleming Heizer (April 3, 1972–October 14, 1980)37 objects
- S2005-2006 #8: Anthropology (UC Berkeley)/Kent Lightfoot (March 28, 2006–June 8, 2011)34 objects
- S1964-1965 #70: Department of Anthropology (CSU Sacramento)/Sam Payen (March 12, 1965–May 1965)31 objects
- S1958-1959 #6 [formerly I-58-C]: University of Florida/John Goggin (December 17, 1958–March 11, 1964)28 objects
- S1992-1993 #5: Biosystems Analysis (1992–November 20, 1992)28 objects
- S1969-1970 #98: California State University, Sacramento/Jerald Jay Johnson (March 19, 1970–November 8, 1971)25 objects
- S1980-1981 #16: Santa Rosa Junior College (September 25, 1980–February 8, 1982)21 objects
- S1963-1964 #74: San Francisco State University (March 20, 1964–January 7, 1965)19 objects
- S1970-1971 #82: Anthropology (UC Berkeley)/Thomas Roy Hester (February 11, 1971–April 20, 1973)18 objects
- S1976-1977 #16: Department of Anthropology (UC Davis)/Martin A. Baumhoff (September 29, 1976–February 25, 1977)18 objects
- S1983-1984 #38: California Academy of Sciences (February 3, 1984–July 19, 1984)16 objects
- S1983-1984 #55: University of California, Riverside (May 23, 1984–December 17, 1984)16 objects
- S2007-2008 #8: Anthropology (UC Berkeley)/Kent Lightfoot (February 25, 2008–June 24, 2010)16 objects