| Montalvo Arts CenterEIN 94-1249283 | Arts, Culture, Humanities | CA | $5,707,512Mid-sized | 92.12 |
| Monterey Bay AquariumEIN 94-2487469 | Animals | CA | $89,299,945Large | 97.27 |
| Monterey Museum of ArtEIN 94-1534563 | Arts, Culture, Humanities | CA | $1,881,784Small | 72.36 |
| Monterey SymphonyEIN 94-1584123 | Arts, Culture, Humanities | CA | $1,891,052Small | 79.99 |
| mothers2mothersEIN 30-0545760 | International | CA | $4,284,671Mid-sized | 80.54 |
| Motion Picture and Television FundEIN 95-1652916 | Human Services | CA | $58,204,376Large | 84.86 |
| Move America ForwardEIN 84-1627277 | Human Services | CA | $2,977,679Small | 87.25 |
| Mozilla FoundationEIN 20-0097189 | Education | CA | $24,206,401Large | 96.07 |
| Mujeres Unidas Y ActivasEIN 20-2986926 | Human and Civil Rights | CA | $2,249,884Small | 86.54 |
| Multidisciplinary Association for Psychedelic StudiesEIN 59-2751953 | Health | CA | $3,572,643Mid-sized | 84.13 |
| Museum of Contemporary Art San DiegoEIN 95-1855640 | Arts, Culture, Humanities | CA | $8,424,727Mid-sized | 82.72 |
| Museum of Craft and DesignEIN 55-0830529 | Arts, Culture, Humanities | CA | $1,789,334Small | 81.27 |
| Museum of Latin American ArtEIN 33-0786070 | Arts, Culture, Humanities | CA | $3,997,352Mid-sized | 81.92 |
| Museum of Photographic ArtsEIN 95-2889390 | Arts, Culture, Humanities | CA | $2,843,158Small | 91.45 |
| Museum of Ventura CountyEIN 95-1942930 | Arts, Culture, Humanities | CA | $1,611,024Small | 78.87 |
| Music Academy of the WestEIN 95-1525814 | Education | CA | $10,929,662Mid-sized | 92.89 |
| Music CenterEIN 95-2217011 | Arts, Culture, Humanities | CA | $56,537,029Large | 86.09 |
| Music Center FoundationEIN 23-7298290 | Arts, Culture, Humanities | CA | $7,702,956Mid-sized | 87.47 |
| MusiCaresEIN 95-4470909 | Arts, Culture, Humanities | CA | $9,815,849Mid-sized | 91.73 |
| Muslim AdvocatesEIN 30-0298794 | Human and Civil Rights | CA | $1,749,479Small | 81.42 |
| MuttvilleEIN 26-0416747 | Animals | CA | $2,332,186Small | 95.50 |
| My Friend's PlaceEIN 95-4834034 | Human Services | CA | $1,932,709Small | 94.34 |
| My Stuff Bags FoundationEIN 95-4671812 | Human Services | CA | $2,673,000Small | 100.00 |
| NALEO Educational FundEIN 52-1212849 | Research and Public Policy | CA | $8,307,589Mid-sized | 86.84 |
| National Alopecia Areata FoundationEIN 94-2780249 | Health | CA | $2,589,154Small | 93.29 |
| National Cat Protection SocietyEIN 95-2641531 | Animals | CA | $1,486,538Small | 67.78 |
| National Center for Lesbian RightsEIN 94-3086885 | Human and Civil Rights | CA | $4,861,287Mid-sized | 79.03 |
| National Center for Science EducationEIN 11-2656357 | Education | CA | $1,301,861Small | 81.29 |
| National Center for Youth LawEIN 94-2506933 | Human and Civil Rights | CA | $6,884,801Mid-sized | 95.25 |
| National Disaster Search Dog FoundationEIN 77-0412509 | Animals | CA | $5,478,026Mid-sized | 92.51 |
| National Immigration Law CenterEIN 95-4539765 | Human and Civil Rights | CA | $7,594,609Mid-sized | 95.50 |
| National Steinbeck CenterEIN 77-0006320 | Arts, Culture, Humanities | CA | $751,752Small | 74.55 |
| National Veterans FoundationEIN 95-3994750 | Human Services | CA | $1,016,799Small | 92.20 |
| Nativity Prep AcademyEIN 33-0886247 | Education | CA | $1,520,569Small | 81.05 |
| Natural History Museum of Los Angeles CountyEIN 95-6132185 | Arts, Culture, Humanities | CA | $47,622,662Large | 86.41 |
| Nature and Culture InternationalEIN 33-0773524 | Environment | CA | $6,361,508Mid-sized | 93.91 |
| Neighborhood Partnership Housing ServicesEIN 33-0435536 | Community Development | CA | $2,451,933Small | 67.96 |
| Nepal Youth FoundationEIN 68-0224596 | International | CA | $4,075,868Mid-sized | 96.32 |
| NESsTEIN 52-2018791 | International | CA | $2,609,292Small | 85.69 |
| Nevada City Community Broadcast GroupEIN 94-2846388 | Arts, Culture, Humanities | CA | $985,353Small | 82.11 |
| New Century Chamber OrchestraEIN 68-0263473 | Arts, Culture, Humanities | CA | $1,332,611Small | 87.36 |
| New Conservatory Theatre CenterEIN 94-2778856 | Arts, Culture, Humanities | CA | $1,798,286Small | 91.82 |
| New Directions for VeteransEIN 95-4242745 | Human Services | CA | $10,308,923Mid-sized | 86.39 |
| New Door VenturesEIN 94-2780274 | Education | CA | $6,514,960Mid-sized | 86.79 |
| New Life MinistriesEIN 75-2785010 | Religion | CA | $7,629,878Mid-sized | 74.98 |
| New Teacher CenterEIN 26-2427526 | Education | CA | $37,426,875Large | 89.48 |
| New West Symphony AssociationEIN 77-0406042 | Arts, Culture, Humanities | CA | $2,324,278Small | 66.86 |
| Next Door Solutions to Domestic ViolenceEIN 94-2420708 | Human Services | CA | $2,853,033Small | 86.11 |
| Nora Lam Chinese Ministries InternationalEIN 23-7418355 | Religion | CA | $7,806,265Mid-sized | 70.72 |
| North Marin Community ServicesEIN 94-1735064 | Human Services | CA | $2,428,726Small | 90.71 |
| Not For SaleEIN 20-5659783 | International | CA | $955,001Small | 64.90 |
| Nuru InternationalEIN 26-1250716 | International | CA | $5,795,736Mid-sized | 93.74 |
| Oakland East Bay SymphonyEIN 94-3081554 | Arts, Culture, Humanities | CA | $2,813,517Small | 86.89 |
| Oakland ZooEIN 94-1687847 | Animals | CA | $17,255,821Large | 90.19 |
| Occidental Arts and Ecology CenterEIN 68-0359676 | Environment | CA | $1,944,634Small | 77.79 |
| Ocean Discovery InstituteEIN 33-0862531 | Education | CA | $1,771,417Small | 90.15 |
| Ocean InstituteEIN 33-0203488 | Education | CA | $6,496,221Mid-sized | 86.98 |
| Ojai Music FestivalEIN 95-2122508 | Arts, Culture, Humanities | CA | $1,980,707Small | 79.08 |
| Okizu FoundationEIN 68-0291178 | Health | CA | $2,017,839Small | 86.23 |
| Old Globe TheatreEIN 95-1543396 | Arts, Culture, Humanities | CA | $25,227,945Large | 90.59 |