| Organizations performing similar types of work |
| Id | Name | Address | State | Established | Total Income |
| 1 | Wayne & Gladys Valley Charitable Foundation | 1939 Harrison St Ste 510, Oakland, CA 94612-3535 | CA | 1978-04 | $425,616,445 |
| 2 | The Grove Foundation | PO BOX 1667, Los Altos, CA 94023-1667 | CA | 1986-09 | $111,844,469 |
| 3 | Chan Soon-Shiong Family Foundation | 10182 Culver Blvd, Culver City, CA 90232-3152 | CA | 2010-07 | $80,992,407 |
| 4 | The Heising-Simons Foundation | 280 2nd St Ste 240, Los Altos, CA 94022-3641 | CA | 2007-12 | $31,516,817 |
| 5 | Tabasgo Foundation | 3463 State St 255, Santa Barbara, CA 93105-2603 | CA | 2005-09 | $29,849,373 |
| 6 | Snyder Family Foundation, Synder Lisa Ttee | 16030 Ventura Blvd Ste 320, Encino, CA 91436-2769 | CA | 2007-06 | $24,937,118 |
| 7 | Tarsadia Foundation | 620 Newport Center Dr 14th Flr, Newport Beach, CA 92660-6420 | CA | 2000-03 | $21,772,348 |
| 8 | Saban Family Foundation | 10100 Santa Monica Blvd Ste 2600, Los Angeles, CA 90067-4000 | CA | 2000-01 | $20,636,368 |
| 9 | The Gareeb Family Foundation, Gareeb Nabeel Ttee | 1200 Newport Center Dr Ste 230, Newport Beach, CA 92660-0933 | CA | 2006-01 | $17,345,645 |
| 10 | Weston Havens Foundation Tr | PO BOX 63954 MAC A0330-011, San Francisco, CA 94163-0001 | CA | 2003-06 | $14,100,489 |
| 11 | The John Katie Hansen Family Foundation | PO BOX 1398, Tiburon, CA 94920-4398 | CA | 2005-12 | $13,696,560 |
| 12 | The Thiel Foundation | 1 Letterman Dr Bldg C Ste 400, San Francisco, CA 94129-1494 | CA | 2006-05 | $11,500,577 |
| 13 | Masimo Foundation For Ethics Innovation & Competition In Health | 40 Parker, Irvine, CA 92618-1604 | CA | 2010-09 | $11,410,105 |
| 14 | The Ginn Family Foundation | 400 So El Camino Real, San Mateo, CA 94402-1704 | CA | 2006-11 | $10,126,047 |
| 15 | The Tdc Foundation | 2377 Crenshaw Blvd Ste 300, Torrance, CA 90501-3330 | CA | 2007-07 | $9,339,975 |
| 16 | Versacare Inc | 4097 Trail Creek Rd Ste B, Riverside, CA 92505-5869 | CA | 1990-06 | $7,265,640 |
| 17 | The Weisman Family Foundation | 2029 Century Park East Ste 114, Los Angeles, CA 90067-2901 | CA | 2004-10 | $6,274,039 |
| 18 | William Gumpert Foundation | 1038 Cottage Way, Encinitas, CA 92024-5857 | CA | 2009-05 | $5,947,319 |
| 19 | Stein Family Foundation | PO BOX 8650, Rcho Santa Fe, CA 92067-8650 | CA | 2007-12 | $5,615,749 |
| 20 | Moses Foundation | 400 W Ocean Blvd Unit 1702, Long Beach, CA 90802-8167 | CA | 2009-02 | $5,593,343 |
| 21 | Opus Community Foundation | 19900 Macarthur Blvd 12th Floor, Irvine, CA 92612-2445 | CA | 2010-10 | $4,339,509 |
| 22 | The@sam Mazza Foundation | PO BOX 14700, San Francisco, CA 94114-0700 | CA | 2006-03 | $4,309,722 |
| 23 | The@maple Foundation | 5150 Overland Ave, Culver City, CA 90230-4914 | CA | 2000-06 | $4,216,655 |
| 24 | Strome Family Foundation | 100 Wilshire Blvd Ste 1750, Santa Monica, CA 90401-3604 | CA | 2008-07 | $3,736,472 |
| 25 | Roger I And Ruth B Macfarlane Foundation, Roger I Macfarlane Ttee | 1909 Via Visalia, Pls Vrds Est, CA 90274-2046 | CA | 2010-05 | $3,495,242 |
| 26 | Arthur And Charlotte Zitrin Foundation | 333 Green St, San Francisco, CA 94133-4103 | CA | 2009-05 | $3,415,073 |
| 27 | The Donald M Slager Sunset Foundation | PO BOX 51, Bishop, CA 93515-0051 | CA | 2004-10 | $3,401,358 |
| 28 | Willard And Renee Wade Foundation | 10100 Santa Monica Blvd Ste 2200, Los Angeles, CA 90067-4120 | CA | 2009-04 | $3,395,452 |
| 29 | The Sheri & Les Biller Family Foundation | 10877 Wilshire Blvd Ste 1703, Los Angeles, CA 90024-4372 | CA | 2002-03 | $3,187,505 |
| 30 | The Paul & Elisabeth Merage Family Foundation | 4350 Von Karman Ave Ste 400, Newport Beach, CA 92660-2007 | CA | 2003-04 | $3,089,382 |
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