The Getty Center from the air, supported by the J. Paul Getty Trust. Photo by Jelson25 via Wikimedia Commons.
| Name | Type | Total Assets* | Location | Founded |
|---|---|---|---|---|
| J Paul Getty Trust | Private Foundation | $12.0 billion | Los Angeles | 1954 |
| Conrad N Hilton Foundation | Private Foundation | $8.7 billion | Westlake Village | 1990 |
| The California Endowment | Private Foundation | $4.8 billion | Los Angeles | 1996 |
| The Eli and Edythe Broad Foundation | Private Foundation | $2.4 billion | Los Angeles | 1999 |
| California Community Foundation | Community Foundation | $2.1 billion | Los Angeles | 1915 |
| Name | Type | Total Assets* | Location | Founded |
| W. M. Keck Foundation | Private Foundation | $1.9 billion | Los Angeles | 1959 |
| The California Wellness Foundation | Corporate Foundation | $1.2 billion | Los Angeles | 1991 |
| The Ahmanson Foundation | Private Foundation | $1.1 billion | Beverly Hills | 1955 |
| Lucas Museum of Narrative Art | Private Foundation | $1.0 billion | Los Angeles | 2013 |
| Weingart Foundation | Private Foundation | $813.2 million | Los Angeles | 1952 |
| Name | Type | Total Assets* | Location | Founded |
| Perenchio Foundation | Private Foundation | $745.5 million | Pasadena | 2011 |
| The Kavli Foundation | Private Foundation | $672.2 million | Los Angeles | 2001 |
| The Diane and Guilford Glazer Foundation | Private Foundation | $641.8 million | Beverly Hills | 2020 |
| Wellcome Leap | Private Foundation | $553.3 million | Culver CIty | 2020 |
| The Broad | Private Foundation | $551.2 million | Los Angeles | 2011 |
| Name | Type | Total Assets* | Location | Founded |
| Craig H Neilsen Foundation | Private Foundation | $489.6 million | Encino (Los Angeles) | 2004 |
| The David Geffen Foundation | Private Foundation | $481.2 million | Los Angeles | 1987 |
| The Shanahan Family Charitable Foundation | Private Foundation | $474.4 million | Pasadena | 2007 |
| Ralph M Parsons Foundation | Private Foundation | $469.5 million | Los Angeles | 1963 |
| Windsong Trust | Private Foundation | $426.5 million | Manhattan Beach | 2004 |
| Name | Type | Total Assets* | Location | Founded |
| Norton Simon Art Foundation | Private Foundation | $402.7 million | Pasadena | 1957 |
| Daughters of Charity Foundation | Private Foundation | $394.2 million | Los Angeles | 1984 |
| Catholic Community Foundation of Los Angeles | Private Foundation | $386.6 million | Los Angeles | 2014 |
| Thomas & Dorothy Leavey Foundation | Private Foundation | $371.2 million | Los Angeles | 1956 |
| Name | Type | Total Assets* | Location | Founded |
| Karsh Family Foundation | Private Foundation | $332.6 million | Beverly Hills | 1999 |
| Dan Murphy Foundation | Private Foundation | $316.8 million | Los Angeles | 1959 |
| Wunderkinder Foundation | Private Foundation | $313.7 million | Los Angeles | 1982 |
| Saul Brandman Foundation | Private Foundation | $312.0 million | Beverly Hills | 1994 |
| The Michael & Lori Milken Family Foundation | Private Foundation | $309.0 million | Santa Monica | 2018 |
| Name | Type | Total Assets* | Location | Founded |
| Unihealth Foundation | Private Foundation | $305.5 million | Los Angeles | 1985 |
| The Smidt Foundation | Private Foundation | $297.0 million | Beverly Hills | 2017 |
| Sam Simon Charitable Giving Foundation | Private Foundation | $290.7 million | Westlake Village | 2014 |
| Dart-L Foundation | Private Foundation | $255.4 million | Los Angeles | 2017 |
| The Oprah Winfrey Charitable Foundation | Private Foundation | $242.0 million | Los Angeles | 2010 |
| Name | Type | Total Assets* | Location | Founded |
| Merkin Family Foundation | Private Foundation | $241.8 million | Marina del Rey | 2004 |
| Rosalinde & Arthur Gilbert Foundation | Private Foundation | $241.7 million | Los Angeles | 2003 |
| Cotsen Foundation for the Art of Teaching | Private Foundation | $241.2 million | Los Angeles | 1985 |
| Helen & Jose Colton Foundation | Private Foundation | $240.7 million | West Hollywood | 1997 |
| Michelson Medical Research Foundation Inc | Private Foundation | $228.4 million | Los Angeles | 1996 |
| Name | Type | Total Assets* | Location | Founded |
| David Hockney Foundation Inc | Private Foundation | $225.5 million | Los Angeles | 2010 |
| Carrie Estelle Doheny Foundation | Private Foundation | $223.8 million | Los Angeles | 2006 |
| Colburn Foundation | Private Foundation | $216.8 million | Los Angeles | 1999 |
| LA84 Foundation | Private Foundation | $212.9 million | Los Angeles | 1990 |
| The Norton Simon Foundation | Private Foundation | $207.8 million | Pasadena | 1954 |
| Name | Type | Total Assets* | Location | Founded |
| Otis Booth Foundation | Private Foundation | $201.2 million | Los Angeles | 1967 |
| Carl & Roberta Deutsch Foundation | Private Foundation | $199.7 million | Santa Monica | 1997 |
| JHM Charitable Foundation | Private Foundation | $195.8 million | Manhattan Beach | 2012 |
| William Lawrence & Blanche Hughes Foundation | Private Foundation | $190.9 million | Agoura Hills | 1997 |
| Name | Type | Total Assets* | Location | Founded |
| Fletcher Jones Foundation | Private Foundation | $190.7 million | Pasadena | 1969 |
| Mortimer and Mimi Levitt Foundation | Private Foundation | $181.0 million | Los Angeles | 1966 |
| Fritz B Burns Foundation | Private Foundation | $180.9 million | Woodland Hills (Los Angeles) | 1995 |
| John H. and Cynthia Lee Smet Foundation | Private Foundation | $180.1 million | Manhattan Beach | 2015 |
| Hirji Wigglesworth Family Foundation | Private Foundation | $170.8 million | Los Angeles | 2018 |
| Name | Type | Total Assets* | Location | Founded |
| Snap Foundation | Private Foundation | $165.5 million | Santa Monica | 2017 |
| Roy & Patricia Disney Family Foundation | Private Foundation | $165.7 million | Burbank | 2016 |
| Colburn Music Fund | Private Foundation | $161.9 million | Los Angeles | 2000 |
| Wasserman Foundation | Private Foundation | $159.4 million | Los Angeles | 1957 |
| The Eisner Foundation Inc | Private Foundation | $153.8 million | Beverly Hills | 1996 |
| Name | Type | Total Assets* | Location | Founded |
| Wallis Annenberg Legacy Foundation | Private Foundation | $152.8 million | Los Angeles | 2011 |
| James G Boswell Foundation | Private Foundation | $149.3 million | Pasadena | 1948 |
| Chuck Lorre Family Foundation | Private Foundation | $141.4 million | Los Angeles | 2000 |
| The Milken Family Foundation | Private Foundation | $140.5 million | Santa Monica | 1987 |
| Johnny Carson Foundation | Private Foundation | $132.0 million | Encino (Los Angeles) | 2006 |
| Name | Type | Total Assets* | Location | Founded |
| Angell Foundation | Private Foundation | $125.0 million | Los Angeles | 2003 |
| Max H Gluck Foundation Inc | Private Foundation | $110.3 million | Sherman Oaks (Los Angeles) | 1985 |
| Frederick R Weisman Art Foundation | Private Foundation | $103.4 million | Los Angeles | 1994 |
| Archstone Foundation | Private Foundation | $101.2 million | Long Beach | 1987 |
* Book value of total assets for 2022.
Sources:
Cause IQ;
990 Finder (Foundation Center);
ProPublica Non-Profits Explorer;
Almanac Research
