- S1974-1975 #44: California Department of Parks and Recreation/Anne Peak (January 17, 1975–December 18, 1975)106 objects
- S1981-1982 #8: University of California, Davis/Richard E. Hughes (August 24, 1981–February 9, 1987)77 objects
- S1980-1981 #3: Department of Anthropology (CSU Sacramento) (July 14, 1980–December 19, 1980)73 objects
- S1971-1972 #17: University of California, Riverside/James F. O'Connell (August 20, 1971–1972)59 objects
- S1960-1961 #1 [formerly I-60-B]: Nevada State Museum/Richard Shutler Jr. (October 31, 1960–August 15, 1963)52 objects
- S1991-1992 #29: United States Forest Service/James L. Boyton (May 21, 1992–August 2, 1995)42 objects
- S1992-1993 #5: Biosystems Analysis (1992–November 20, 1992)26 objects
- S1971-1972 #120: Department of Anthropology (UC Berkeley)/Robert Fleming Heizer (April 3, 1972–October 14, 1980)23 objects
- S1969-1970 #119: University of California, Davis/Jerald Jay Johnson (April 24, 1970–November 8, 1971)15 objects
- S1975-1976 #53: Department of Anthropology (UC Berkeley)/Lee Spencer (February 4, 1976–February 5, 1976)12 objects
- S1990-1991 #3: University of California, Riverside (August 14, 1990–November 20, 1992)11 objects
- S1973-1974 #108: City of Sacramento, Department of Parks and Community Services (June 11, 1974–June 28, 1974)8 objects
- S1977-1978 #63: Department of Anthropology (UC Berkeley)/Robert Fleming Heizer (1978–October 14, 1980)7 objects
- S1991-1992 #22: Far Western Anthropological Research Group, Inc./Paul Bouey (February 12, 1992–June 22, 1994)7 objects
- S1970-1971 #99: Department of Anthropology (UC Berkeley)/Alan D. Albee (March 17, 1971–October 16, 1974)6 objects
- S1972-1973 #99: Department of Anthropology (UC Berkeley)/Richard L. Burger (May 17, 1973–May 25, 1973)6 objects
- S1995-1996 #10: University of Utah/Sarah George (December 5, 1995–February 1, 2000)4 objects
- S1965-1966 #17: Department of Anthropology (UC Berkeley)/Robert Fleming Heizer (September 20, 1965–June 27, 1966)3 objects
- S1973-1974 #35: Department of Anthropology (UC Berkeley)/Richard L. Burger (November 9, 1973–May 4, 1978)3 objects
- S1985-1986 #37: State Archaeology Lab/Peter Schultz (May 7, 1986–June 12, 1986)2 objects