- S1997-1998 #8: California State University, Chico/Nette Martinez (March 23, 1998–May 29, 2008)557 objects
- S1993-1994 #21: California State University, Chico/Turhon Murad (July 12, 1994–May 4, 1998)476 objects
- S2001-2002 #15: Anthropology (UC Berkeley)/Kent Lightfoot (January 23, 2002–January 23, 2003)246 objects
- S2004-2005 #8: Anthropology (UC Berkeley)/Kent Lightfoot (dates unknown)182 objects
- S2012-2013 #1: Anthropology (UC Berkeley)/Jennifer Hofmeister (August 29, 2012–December 15, 2021)125 objects
- S1964-1965 #74: State of California, Division of Beaches and Parks/Francis A. Riddell (March 19, 1965–September 2, 1981)104 objects
- S1985-1986 #37: State Archaeology Lab/Peter Schultz (May 7, 1986–June 12, 1986)97 objects
- S2012-2013 #5: Anthropology (UC Berkeley)/Jun Sunseri (September 6, 2012–June 3, 2021)50 objects
- S1992-1993 #29: Burke Museum of Natural History & Culture/Jack Broughton (June 1993–October 8, 1996)33 objects
- S2005-2006 #7: Anthropology (UC Berkeley)/Cotsen Institute of Archaeology (November 29, 2005–January 3, 2011)29 objects
- S2017-2018 #8: Anthropology (UC Berkeley)/Gabriel Sanchez (June 11, 2018–March 1, 2022)29 objects
- S1980-1981 #13: Department of Anthropology (UC Davis) (August 18, 1980–December 30, 1980)23 objects
- S2011-2012 #6c: Anthropology (UC Berkeley)/Jun Sunseri (October 5, 2011–unknown)22 objects
- S2012-2013 #4: Anthropology (UC Berkeley)/Jennifer Hofmeister (September 25, 2012–September 22, 2017)21 objects
- S1969-1970 #119: University of California, Davis/Jerald Jay Johnson (April 24, 1970–November 8, 1971)12 objects
- S1977-1978 #47: Anthropology (UC Berkeley)/Glynn Llywelyn Isaac (March 29, 1978–June 13, 1978)11 objects
- S1978-1979 #57: John Foster/John Foster (March 26, 1979–April 1, 1983)7 objects
- S1983-1984 #10: Department of Anthropology (University of Washington)/Donald Grayson (May 23, 1985–October 14, 1988)6 objects
- S1924-1925 #1: Museum of Vertebrate Zoology (UC Berkeley)/Joseph Grinnell (1924-06-13–1925-01-01)5 objects
- S1978-1979 #31: San Bernardino County Museum/Robert E. Reynolds (1978–June 14, 1979)5 objects