- S1981-1982 #8: University of California, Davis/Richard E. Hughes (August 24, 1981–February 9, 1987)1,178 objects
- S1994-1995 #2: American Museum of Natural History/David Hurst Thomas (August 30, 1994–February 1, 1996)442 objects
- S1990-1991 #3: University of California, Riverside (August 14, 1990–November 20, 1992)372 objects
- S1977-1978 #63: Anthropology (UC Berkeley)/Robert Fleming Heizer (1978–October 14, 1980)331 objects
- S1979-1980 #66: Department of Anthropology (CSU Sacramento) (May 13, 1980–July 14, 1980)169 objects
- S1958-1959 #8: University of California Archaeological Survey (November 17, 1958–October 22, 1959)167 objects
- S1975-1976 #49: Department of Anthropology (UC Davis)/Richard E. Hughes (January 9, 1976–February 9, 1987)153 objects
- S1991-1992 #29: United States Forest Service/James L. Boyton (May 21, 1992–August 2, 1995)145 objects
- S2002-2003 #14: Pacific Legacy, Inc./Thomas L. Jackson (February 21, 2003–February 21, 2004)137 objects
- S1971-1972 #17: University of California, Riverside/James F. O'Connell (August 20, 1971–1972)115 objects
- S1974-1975 #44: California Department of Parks and Recreation/Anne Peak (January 17, 1975–December 18, 1975)112 objects
- S1992-1993 #12: Far Western Anthropological Research Group, Inc./Paul Bouey (1992–June 22, 1994)107 objects
- S1976-1977 #20: Anthropology (UC Berkeley)/Thomas Roy Hester (October 20, 1976–June 6, 1977)95 objects
- S2007-2008 #12: Anthropology (UC Berkeley)/Darren Modzelewski (dates unknown)95 objects
- S1965-1966 #17: Anthropology (UC Berkeley)/Robert Fleming Heizer (September 20, 1965–June 27, 1966)94 objects
- S1967-1968 #111: Department of Anthropology (UC Davis)/Jerald Jay Johnson (February 20, 1969–February 18, 1982)92 objects
- S1968-1969 #82: University of California, Davis (February 20, 1969–unknown)92 objects
- S1991-1992 #28: Thomas N. Layton (April 13, 1992–April 21, 1992)85 objects
- S1991-1992 #30: Indiana University Museum of Archaeology and Anthropology /Noel Justice (May 19, 1992–July 3, 1996)85 objects
- S1960-1961 #1 [formerly I-60-B]: Nevada State Museum/Richard Shutler Jr. (October 31, 1960–August 15, 1963)78 objects