- University Appropriation150,175 objects
- University of California Archaeological Survey97,047 objects
- Phoebe Apperson Hearst63,976 objects
- Robert Fleming Heizer44,973 objects
- Viking Fund Incorporated27,171 objects
- Jeremiah B. Lillard22,442 objects
- Sacramento County Board of Education20,660 objects
- California Archaeological Survey18,842 objects
- Harry Starr Riddell Jr.16,541 objects
- Edward Putnam Lanning14,908 objects
- City and County of San Francisco, Waste Water Management Program13,779 objects
- Francis A. Riddell13,450 objects
- Olline Riddell12,815 objects
- Isabel T. Kelly11,619 objects
- Ronald Leroy Olson10,245 objects
- James Allan Bennyhoff9,714 objects
- Adán Eduardo Treganza9,463 objects
- Katharine D. Jenkins8,944 objects
- Edgar C. Altermatt8,821 objects
- Mrs. Edgar C. Altermatt8,821 objects