| California State Railroad Museum FoundationEIN 94-2698626 | Arts, Culture, Humanities | CA | $2,945,986Small | 93.91 |
| California TroutEIN 23-7097680 | Environment | CA | $5,896,349Mid-sized | 90.63 |
| California Waterfowl AssociationEIN 94-1149574 | Animals | CA | $10,714,120Mid-sized | 89.54 |
| California Wilderness CoalitionEIN 51-0183228 | Animals | CA | $626,639Small | 76.36 |
| California Youth ConnectionEIN 94-3141616 | Human Services | CA | $2,848,916Small | 78.22 |
| California-Hawaii Elks Major ProjectEIN 95-1919366 | Human Services | CA | $4,289,759Mid-sized | 87.55 |
| Californians for Population StabilizationEIN 94-2581509 | Research and Public Policy | CA | $1,049,754Small | 83.06 |
| Cambodian Children's FundEIN 20-0764162 | International | CA | $8,478,860Mid-sized | 91.16 |
| Camfed USA FoundationEIN 54-2033897 | International | CA | $3,343,364Small | 94.73 |
| Camp Kesem NationalEIN 51-0454157 | Health | CA | $7,778,650Mid-sized | 94.69 |
| Campaign for College OpportunityEIN 20-0427622 | Education | CA | $1,675,237Small | 85.96 |
| Canal AllianceEIN 94-2832648 | Human Services | CA | $4,938,588Mid-sized | 90.95 |
| Canary FoundationEIN 65-1230251 | Health | CA | $2,907,402Small | 59.32 |
| Cancer FederationEIN 95-3133568 | Health | CA | $469,702Small | 49.33 |
| Cancer Support Community Los AngelesEIN 33-0287070 | Health | CA | $1,350,425Small | 82.18 |
| Cancer Support Community San Francisco Bay AreaEIN 68-0157858 | Health | CA | $1,557,610Small | 95.00 |
| Canine Companions for IndependenceEIN 94-2494324 | Animals | CA | $26,185,688Large | 88.43 |
| Canvasback Missions, Inc.EIN 93-0831904 | International | CA | $1,888,696Small | 82.50 |
| Capital Public RadioEIN 68-0223271 | Arts, Culture, Humanities | CA | $10,465,669Mid-sized | 87.78 |
| Carmel FoundationEIN 94-1225368 | Human Services | CA | $2,544,823Small | 82.50 |
| Casa de AmparoEIN 95-3315571 | Human Services | CA | $8,748,510Mid-sized | 96.46 |
| CASA of Los AngelesEIN 95-3890446 | Human Services | CA | $3,600,000Mid-sized | 80.49 |
| Casa TeresaEIN 95-3251986 | Human Services | CA | $2,588,883Small | 82.72 |
| Castleton Ranch Horse Rescue Inc.EIN 11-3731839 | Animals | CA | $1,611,503Small | 78.53 |
| Catholic AnswersEIN 95-3754404 | Religion | CA | $7,475,369Mid-sized | 74.63 |
| Catholic Charities CYO, Archdiocese of San FranciscoEIN 94-1498472 | Community Development | CA | $39,675,865Large | 91.21 |
| Catholic Charities of Los AngelesEIN 95-1690973 | Human Services | CA | $38,301,614Large | 96.16 |
| Catholic Charities of Santa Clara CountyEIN 94-2762269 | Human Services | CA | $35,534,021Large | 87.91 |
| Catholic Charities of the Diocese of FresnoEIN 94-1678938 | Human Services | CA | $5,994,629Mid-sized | 91.18 |
| Catholic Charities of the Diocese of Santa RosaEIN 94-2479393 | Human Services | CA | $13,533,849Large | 90.17 |
| Catholic Charities of the East BayEIN 94-2677202 | Human Services | CA | $6,682,589Mid-sized | 79.64 |
| Center for Asian American MediaEIN 94-2801493 | Arts, Culture, Humanities | CA | $2,713,551Small | 90.39 |
| Center for Bio-Ethical ReformEIN 33-0443975 | Human and Civil Rights | CA | $982,157Small | 78.77 |
| Center for Creative Land RecyclingEIN 94-3302410 | Environment | CA | $984,006Small | 89.40 |
| Center for EcoliteracyEIN 94-2911417 | Environment | CA | $2,386,398Small | 88.26 |
| Center for Energy Efficiency and Renewable TechnologiesEIN 68-0260751 | Environment | CA | $2,329,330Small | 81.32 |
| Center for Investigative ReportingEIN 94-2434026 | Arts, Culture, Humanities | CA | $13,182,677Mid-sized | 90.80 |
| Center for Third World OrganizingEIN 52-1211059 | Human and Civil Rights | CA | $679,062Small | 59.78 |
| Center on Policy InitiativesEIN 33-0824881 | Research and Public Policy | CA | $2,041,680Small | 91.84 |
| Central California Food BankEIN 77-0320851 | Human Services | CA | $65,008,490Large | 94.67 |
| Central Coast Alliance United for A Sustainable EconomyEIN 77-0578864 | Human and Civil Rights | CA | $1,051,634Small | 88.85 |
| Centre Pompidou FoundationEIN 13-2941675 | Arts, Culture, Humanities | CA | $7,552,193Mid-sized | 92.22 |
| Centro Legal De La RazaEIN 23-7181456 | Human and Civil Rights | CA | $5,659,231Mid-sized | 92.22 |
| Challenged Athletes FoundationEIN 33-0739596 | Human Services | CA | $8,869,120Mid-sized | 84.16 |
| Channel Islands YMCAEIN 95-1643379 | Human Services | CA | $18,458,636Large | 90.64 |
| Child Advocates of Silicon ValleyEIN 77-0250773 | Human Services | CA | $2,297,246Small | 92.18 |
| Children NowEIN 94-3059243 | Education | CA | $7,605,949Mid-sized | 92.02 |
| Children of the NightEIN 95-3130408 | Human Services | CA | $2,637,941Small | 91.25 |
| Children's Burn FoundationEIN 95-3954352 | Health | CA | $2,230,119Small | 94.96 |
| Children's Discovery Museum of San JoseEIN 94-2870828 | Arts, Culture, Humanities | CA | $7,948,465Mid-sized | 98.67 |
| Children's FundEIN 33-0193286 | Human Services | CA | $4,099,530Mid-sized | 87.70 |
| Children's Hunger FundEIN 95-4335462 | International | CA | $77,135,389Large | 95.47 |
| Children's Relief MissionEIN 51-0265558 | International | CA | $1,515,187Small | 73.57 |
| Chinese for Affirmative ActionEIN 94-2161304 | Human and Civil Rights | CA | $2,979,435Small | 90.96 |
| CHOC FoundationEIN 95-6097416 | Health | CA | $37,904,682Large | 91.07 |
| Christian Salvation ServiceEIN 98-0085066 | International | CA | $1,550,401Small | 64.06 |
| Christian Solidarity InternationalEIN 33-0826951 | Religion | CA | $1,186,127Small | 88.46 |
| ChrysalisEIN 95-3972624 | Human Services | CA | $18,364,058Large | 92.92 |
| CinequestEIN 77-0250734 | Arts, Culture, Humanities | CA | $1,297,850Small | 88.19 |
| Citizens Commission on Human RightsEIN 68-0005541 | Human and Civil Rights | CA | $3,592,409Mid-sized | 80.30 |