| Hidden VillaEIN 94-1539836 | Environment | CA | $3,910,117Mid-sized | 97.13 |
| Hinds HospiceEIN 77-0071360 | Human Services | CA | $17,071,457Large | 88.26 |
| Hispanic Scholarship FundEIN 52-1051044 | Education | CA | $48,536,245Large | 89.06 |
| Hispanics in PhilanthropyEIN 94-3040607 | Community Development | CA | $5,180,675Mid-sized | 87.37 |
| Hoag Hospital FoundationEIN 95-3222343 | Health | CA | $29,764,586Large | 82.25 |
| Hombre NuevoEIN 77-0201619 | Religion | CA | $8,790,129Mid-sized | 78.49 |
| HomeAid AmericaEIN 33-0673009 | Community Development | CA | $753,531Small | 91.98 |
| HomeAid Orange CountyEIN 33-0568079 | Community Development | CA | $1,254,022Small | 79.61 |
| Homeboy IndustriesEIN 95-4800735 | Human Services | CA | $14,246,173Large | 81.86 |
| Homeless Prenatal ProgramEIN 94-3146280 | Human Services | CA | $7,462,195Mid-sized | 92.19 |
| Homeward Bound of MarinEIN 68-0011405 | Human Services | CA | $7,883,312Mid-sized | 96.45 |
| HomeWordEIN 33-0072984 | Religion | CA | $1,120,964Small | 68.73 |
| Hope Unlimited for ChildrenEIN 33-0480141 | International | CA | $1,393,809Small | 82.48 |
| HOPE worldwideEIN 04-3129839 | International | CA | $21,961,902Large | 91.55 |
| Human OptionsEIN 95-3667817 | Human Services | CA | $5,329,407Mid-sized | 88.24 |
| Humane America Animal FoundationEIN 95-4761276 | Animals | CA | $4,024,885Mid-sized | 88.96 |
| Humane Society of Sonoma CountyEIN 94-6001315 | Animals | CA | $4,599,091Mid-sized | 90.62 |
| Humane Society Silicon ValleyEIN 94-1196215 | Animals | CA | $11,941,402Mid-sized | 88.89 |
| Huntington Medical Research InstitutesEIN 95-1757119 | Health | CA | $8,836,889Mid-sized | 86.43 |
| I Love A Clean San Diego CountyEIN 95-2566791 | Environment | CA | $1,383,646Small | 75.88 |
| Idyllwild Arts FoundationEIN 95-1801279 | Education | CA | $26,431,187Large | 81.19 |
| Immaculate Heart CommunityEIN 95-2706764 | Religion | CA | $6,222,928Mid-sized | 90.86 |
| Immigrant Legal Resource CenterEIN 94-2939540 | Human and Civil Rights | CA | $11,365,899Mid-sized | 92.02 |
| Imperial Valley Food PantryEIN 33-0633364 | Human Services | CA | $3,817,323Mid-sized | 71.17 |
| India Community CenterEIN 52-2351119 | Human Services | CA | $4,360,944Mid-sized | 71.51 |
| India Gospel OutreachEIN 33-0193797 | Religion | CA | $1,339,644Small | 85.94 |
| Indian Muslim Relief and CharitiesEIN 27-0058132 | International | CA | $5,886,673Mid-sized | 94.74 |
| Inland Empire United WayEIN 33-0502676 | Community Development | CA | $6,839,548Mid-sized | 97.87 |
| Inner City Law CenterEIN 95-3697572 | Human and Civil Rights | CA | $4,036,319Mid-sized | 93.16 |
| Inner-City ArtsEIN 95-4239478 | Education | CA | $3,939,718Mid-sized | 90.71 |
| Institute for Educational AdvancementEIN 95-4695698 | Education | CA | $2,150,889Small | 89.48 |
| Institute for Middle East UnderstandingEIN 20-2389388 | International | CA | $1,491,358Small | 85.79 |
| Institute of Contemporary Art, Los AngelesEIN 95-3992968 | Arts, Culture, Humanities | CA | $1,286,254Small | 77.28 |
| Institute of Noetic SciencesEIN 23-7236986 | Research and Public Policy | CA | $5,024,895Mid-sized | 87.56 |
| Interfaith Community Services, CaliforniaEIN 95-3837714 | Human Services | CA | $12,774,551Mid-sized | 92.90 |
| Interfaith Power & LightEIN 94-3335236 | Environment | CA | $1,481,890Small | 82.03 |
| International Christian MinistriesEIN 62-1465626 | Religion | CA | $939,719Small | 80.19 |
| International Community FoundationEIN 33-0457858 | International | CA | $11,867,287Mid-sized | 97.17 |
| International Medical CorpsEIN 95-3949646 | International | CA | $138,130,256Large | 84.22 |
| International Myeloma FoundationEIN 95-4296919 | Health | CA | $16,025,421Large | 92.92 |
| International Relief TeamsEIN 33-0412751 | International | CA | $38,184,357Large | 95.58 |
| International RiversEIN 94-3158295 | Environment | CA | $2,122,078Small | 82.97 |
| Intersection for the ArtsEIN 94-1593216 | Arts, Culture, Humanities | CA | $3,286,407Small | 95.00 |
| Jacobs & Cushman San Diego Food BankEIN 20-4374795 | Human Services | CA | $39,659,820Large | 95.26 |
| Japanese American Citizens LeagueEIN 94-1245885 | Human and Civil Rights | CA | $2,415,606Small | 84.12 |
| Japanese American National MuseumEIN 95-3966024 | Arts, Culture, Humanities | CA | $6,296,885Mid-sized | 86.96 |
| Jenesse CenterEIN 95-3652529 | Human Services | CA | $3,425,453Small | 88.06 |
| Jewish Big Brothers Big Sisters of Los AngelesEIN 95-1691009 | Human Services | CA | $4,775,195Mid-sized | 95.01 |
| Jewish Community Center of San FranciscoEIN 94-3227260 | Human Services | CA | $37,902,425Large | 90.05 |
| Jewish Community Federation of San Francisco, the Peninsula, Marin and Sonoma CountiesEIN 94-1156533 | Community Development | CA | $108,286,334Large | 97.18 |
| Jewish Community Foundation of San DiegoEIN 95-2504044 | Community Development | CA | $167,243,782Large | 90.71 |
| Jewish Family & Community Services East BayEIN 94-3250304 | Human Services | CA | $6,815,446Mid-sized | 90.34 |
| Jewish Family and Children's Services of San Francisco, the Peninsula, Marin and Sonoma CountiesEIN 94-1156528 | Human Services | CA | $35,655,324Large | 88.14 |
| Jewish Family Service of Los AngelesEIN 95-1691013 | Human Services | CA | $31,765,487Large | 86.72 |
| Jewish Family Service of San DiegoEIN 95-1644024 | Human Services | CA | $18,615,137Large | 91.21 |
| Jewish Family Services of Silicon ValleyEIN 94-2536452 | Human Services | CA | $1,673,782Small | 91.83 |
| Jewish Federation and Family Services of Orange CountyEIN 95-2407026 | Community Development | CA | $6,640,174Mid-sized | 91.55 |
| Jewish Federation Council of Greater Los AngelesEIN 95-1643388 | Community Development | CA | $52,208,996Large | 85.52 |
| Jewish Federation of Greater Long Beach and West Orange CountyEIN 95-1647830 | Human Services | CA | $2,311,605Small | 83.88 |
| Jewish Federation of Greater Santa BarbaraEIN 23-7354759 | Community Development | CA | $1,345,491Small | 87.91 |