- S1990-1991 #3: University of California, Riverside (August 14, 1990–November 20, 1992)703 objects
- S1971-1972 #120: Department of Anthropology (UC Berkeley)/Robert Fleming Heizer (April 3, 1972–October 14, 1980)518 objects
- S2017-2018 #8: Department of Anthropology (UC Berkeley)/Gabriel Sanchez (June 11, 2018–March 1, 2022)395 objects
- S1991-1992 #29: United States Forest Service/James L. Boyton (May 21, 1992–August 2, 1995)194 objects
- S1974-1975 #44: California Department of Parks and Recreation/Anne Peak (January 17, 1975–December 18, 1975)159 objects
- S1970-1971 #82: Department of Anthropology (UC Berkeley)/Thomas Roy Hester (February 11, 1971–April 20, 1973)115 objects
- S1972-1973 #77: Department of Anthropology (UC Berkeley)/Thomas Roy Hester (April 6, 1973–July 4, 1973)91 objects
- S1972-1973 #52: Department of Anthropology (UC Berkeley)/Jean M. Pitzer (January 22, 1973–October 14, 1980)88 objects
- S1964-1965 #70: Department of Anthropology (CSU Sacramento)/Sam Payen (March 12, 1965–May 1965)78 objects
- S1969-1970 #98: California State University, Sacramento/Jerald Jay Johnson (March 19, 1970–November 8, 1971)68 objects
- S2019-2020 #1: Department of Anthropology (UC Berkeley)/Robert Cuthrell (June 10, 2019–June 16, 2021)61 objects
- S1963-1964 #74: San Francisco State University (March 20, 1964–January 7, 1965)56 objects
- S1974-1975 #33: Museum of Paleontology (UC Berkeley)/Allison Galloway (November 6, 1974–March 30, 1976)51 objects
- S1975-1976 #96: Department of Anthropology (UC Davis)/Richard E. Hughes (June 10, 1976–November 25, 1986)50 objects
- S1969-1970 #135: Department of Anthropology (UC Berkeley)/Robert Fleming Heizer (June 8, 1970–July 30, 1970)49 objects
- S1980-1981 #14: Peter Banks (August 20, 1980–June 4, 1982)48 objects
- S1984-1985 #18: Sonoma State University (November 1, 1984–March 1986)45 objects
- S1986-1987 #25: Richard E. Hughes (March 13, 1987–July 15, 1987)43 objects
- S1973-1974 #100: Museum of Paleontology (UC Berkeley)/Allison Galloway (May 17, 1974–March 19, 1976)41 objects
- S1979-1980 #66: Department of Anthropology (CSU Sacramento) (May 13, 1980–July 14, 1980)39 objects