| Other organizations in California |
| Id | Name | Address | State | Established | Total Income |
| 1 | Castro Valley Parent Nursery School Inc | 3657 Christensen Ln, Castro Valley, CA 94546-3044 | CA | 1958-05 | $81,473 |
| 2 | Castro Valley Soccer Club | PO BOX 20338, Castro Valley, CA 94546-8338 | CA | 1989-01 | $848,142 |
| 3 | Castro Valley Sports Foundation | P O Box 20687, Castro Valley, CA 94546 | CA | 2003-06 | $-5,936 |
| 4 | Castroville Coalition | PO BOX 57, Castroville, CA 95012 | CA | 2014-05 | $0 |
| 5 | Castroville Festivals Inc | PO BOX 1041, Castroville, CA 95012-1041 | CA | 1993-12 | $306,129 |
| 6 | Cat Adoption Service | 306 N-El Norte Prkway 479, Escondido, CA 92026 | CA | 2002-07 | $73,754 |
| 7 | Cat Assistance Referral & Education | PO BOX 56631, Sherman Oaks, CA 91413-1631 | CA | 1992-09 | $716,522 |
| 8 | Cat Connection | PO BOX 18456, Encino, CA 91416-8456 | CA | 1997-01 | $53,843 |
| 9 | Cat House On The Kings Inc | 7120 S Kings River Rd, Parlier, CA 93648-9720 | CA | 2002-07 | $1,332,311 |
| 10 | Cat People Inc | PO BOX 13610, Bakersfield, CA 93389-3610 | CA | 1996-07 | $126,948 |
| 11 | Catalina Channel Swimming Federation | 8917 La Mesa Blvd, La Mesa, CA 91942 | CA | 2008-08 | $44,942 |
| 12 | Catalina Choices Inc | PO BOX 1492, Avalon, CA 90704-1492 | CA | 2008-12 | $38,294 |
| 13 | Catalina Classic Paddleboard Association Inc | 217 Palos Verdes Blvd 207, Redondo Beach, CA 90277 | CA | 1999-11 | $0 |
| 14 | Catalina Island Humane Society Inc | PO BOX 1584, Avalon, CA 90704-1584 | CA | 1975-05 | $134,529 |
| 15 | Catalina Island Medical Center, Avalon Municipal Hospital | PO BOX 1563, Avalon, CA 90704-1563 | CA | 1988-02 | $7,694,636 |
| 16 | Catalina Island Museum | PO BOX 366, Avalon, CA 90704-0366 | CA | 1956-11 | $3,396,369 |
| 17 | Catalina Island Performing Arts Foundation | PO BOX 2070, Avalon, CA 90704-2070 | CA | 1999-03 | $34,091 |
| 18 | Catalina Island Chamber Of Commerce And Visitors Bureau | PO BOX 217, Avalon, CA 90704-0217 | CA | 1983-04 | $1,356,748 |
| 19 | Catalina Island Womens Forum | PO BOX 1377, Avalon, CA 90704-1377 | CA | 1996-03 | $54,179 |
| 20 | Catalina Island Yacht Club | PO BOX 638, Dana Point, CA 92629-0638 | CA | 1938-09 | $593,203 |
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