Home Organizations California Every cause Civil rights and advocacy 1,042 Environment and climate 3,443 Labor unions and worker centers 3,301 Housing and homelessness 3,723 Immigrant services and rights 399 Food banks and hunger 1,063 Legal aid 264 Voting and civic participation 253 Community health and reproductive care 443 LGBTQ+ services and rights 150 Criminal justice reform and reentry 345 Civil rights and advocacy (1,042) Organization City Type Revenue The Trevor Project IncEIN 95-4681287 · filings W Hollywood Charity, 501(c)(3) $85.5 million Disability Rights CaliforniaEIN 94-2505916 · filings Sacramento Charity, 501(c)(3) $47.3 million Center For Empowered Politics Education FundEIN 84-3636499 · filings Oakland Charity, 501(c)(3) $24.4 million National Immigration Law CenterEIN 95-4539765 · filings Los Angeles Charity, 501(c)(3) $23.0 million Impact JusticeEIN 47-3363891 · filings Oakland Charity, 501(c)(3) $20.9 million Chinese For Affirmative ActionEIN 94-2161304 · filings San Francisco Charity, 501(c)(3) $20.8 million California Court Appointed Special Advocate AssociationEIN 68-0163010 · filings San Diego Charity, 501(c)(3) $20.4 million CalmattersEIN 47-2474086 · filings Sacramento Charity, 501(c)(3) $18.3 million Rise Up TogetherEIN 93-1807227 · filings Oakland Charity, 501(c)(3) $16.2 million VotingworksEIN 83-2910494 · filings San Francisco Charity, 501(c)(3) $16.0 million Transgender Law CenterEIN 05-0544006 · filings Oakland Charity, 501(c)(3) $15.7 million Public Rights ProjectEIN 88-4139028 · filings Oakland Charity, 501(c)(3) $15.4 million
The 300 largest →
Environment and climate (3,443) Organization City Type Revenue Center For Sustainable EnergyEIN 33-0936366 · filings San Diego Charity, 501(c)(3) $335.6 million Trust For Public LandEIN 23-7222333 · filings San Francisco Charity, 501(c)(3) $301.2 million Climate Imperative FoundationEIN 84-5024713 · filings San Francisco Charity, 501(c)(3) $271.7 million EarthjusticeEIN 94-1730465 · filings San Francisco Charity, 501(c)(3) $170.8 million Social And Environmental Entrepreneurs IncEIN 95-4116679 · filings Calabasas Charity, 501(c)(3) $94.6 million Resources Legacy FundEIN 95-4703838 · filings Sacramento Charity, 501(c)(3) $79.6 million Save The Redwoods LeagueEIN 94-0843915 · filings San Francisco Charity, 501(c)(3) $68.1 million MultiplierEIN 91-2166435 · filings San Francisco Charity, 501(c)(3) $65.8 million Peninsula Open Space TrustEIN 94-2392007 · filings Palo Alto Charity, 501(c)(3) $62.3 million Golden Gate National Parks ConservancyEIN 94-2781708 · filings San Francisco Charity, 501(c)(3) $54.7 million Klamath River Renewal CorporationEIN 81-2761910 · filings Berkeley Charity, 501(c)(3) $49.8 million Catalyst4 IncEIN 87-3323607 · filings Palo Alto Advocacy, 501(c)(4) $48.5 million
The 300 largest →
Labor unions and worker centers (3,301) Organization City Type Revenue California Teachers AssociationEIN 94-0362310 · filings Burlingame Labor organization, 501(c)(5) $249.1 million Western States Regional Council Of CarpentersEIN 95-1318135 · filings Los Angeles Labor organization, 501(c)(5) $198.9 million California Nurses AssociationEIN 94-0362060 · filings Oakland Labor organization, 501(c)(5) $187.1 million S E I U Uhw Local 2005EIN 20-1973983 · filings Oakland Labor organization, 501(c)(5) $145.9 million Screen Actors Guild- American Federation Of Television And RadioEIN 45-4931719 · filings Los Angeles Labor organization, 501(c)(5) $129.7 million Service Employees International UnionEIN 47-4164197 · filings Los Angeles Labor organization, 501(c)(5) $121.7 million Service Employees International UnionEIN 37-1535315 · filings Los Angeles Labor organization, 501(c)(5) $90.8 million International Union Of Operating Engineers Local 3EIN 94-0577785 · filings Concord Labor organization, 501(c)(5) $77.7 million International Brotherhood Of Electrical WorkersEIN 94-0938402 · filings Vacaville Labor organization, 501(c)(5) $74.8 million United Brotherhood Of Carpenters & Joiners Of AmericaEIN 94-3271496 · filings Oakland Labor organization, 501(c)(5) $69.8 million Southwest Carpenters Training FundEIN 95-2106266 · filings Los Angeles Labor organization, 501(c)(5) $68.0 million United Teachers Los AngelesEIN 95-2635019 · filings Los Angeles Labor organization, 501(c)(5) $64.8 million
The 300 largest →
Housing and homelessness (3,723) Organization City Type Revenue Front Porch Communities And ServicesEIN 95-4538269 · filings Glendale Charity, 501(c)(3) $422.9 million Abode ServicesEIN 94-3087060 · filings Fremont Charity, 501(c)(3) $158.4 million Low Income Investment FundEIN 94-2952578 · filings San Francisco Charity, 501(c)(3) $123.4 million Midpen Housing CorporationEIN 23-7089977 · filings Foster City Charity, 501(c)(3) $109.0 million Self Help EnterprisesEIN 94-1592676 · filings Visalia Charity, 501(c)(3) $107.7 million Bridge Housing CorporationEIN 94-2827909 · filings San Francisco Charity, 501(c)(3) $101.8 million Elwyn CaliforniaEIN 26-1855027 · filings San Jose Charity, 501(c)(3) $93.4 million Weingart Center AssociationEIN 95-6054617 · filings Los Angeles Charity, 501(c)(3) $89.7 million Eden Housing IncEIN 23-1716750 · filings Hayward Charity, 501(c)(3) $78.4 million Tenderloin Housing Clinic IncEIN 94-2681706 · filings San Francisco Charity, 501(c)(3) $75.3 million Episcopal Communities & Services For SeniorsEIN 95-1642373 · filings Altadena Charity, 501(c)(3) $74.8 million National Community Renaissance Of CaliforniaEIN 33-0521215 · filings Rch Cucamonga Charity, 501(c)(3) $72.0 million
The 300 largest →
Immigrant services and rights (399) Organization City Type Revenue Special Service For Groups IncEIN 95-1716914 · filings Los Angeles Charity, 501(c)(3) $264.2 million Jewish Family Service Of San DiegoEIN 95-1644024 · filings San Diego Charity, 501(c)(3) $93.1 million Sacramento Chinese Community Service Center IncEIN 94-2581434 · filings Sacramento Charity, 501(c)(3) $32.4 million International Institute Of Los AngelesEIN 95-1641446 · filings Los Angeles Charity, 501(c)(3) $31.5 million Coalition For Humane Immigrant RightsEIN 95-4421521 · filings Los Angeles Charity, 501(c)(3) $24.5 million Koreatown Youth And Community Center IncEIN 95-3779389 · filings Los Angeles Charity, 501(c)(3) $22.5 million Immigrant Legal Resource CenterEIN 94-2939540 · filings San Francisco Charity, 501(c)(3) $17.6 million Central American Resource Center - Carecen - Of CaliforniaEIN 95-3867724 · filings Los Angeles Charity, 501(c)(3) $15.7 million United American Indian InvolvementEIN 95-2917933 · filings Los Angeles Charity, 501(c)(3) $15.5 million The Fresno CenterEIN 77-0280265 · filings Fresno Charity, 501(c)(3) $12.8 million Latino Center For Prevention & Action In Health & WelfareEIN 33-0562943 · filings Santa Ana Charity, 501(c)(3) $10.9 million Central American Resource Center Carecen Of Northern CaliforniaEIN 94-3036508 · filings San Francisco Charity, 501(c)(3) $10.6 million
The 300 largest →
Food banks and hunger (1,063) Organization City Type Revenue Second Harvest Of Silicon ValleyEIN 94-2614101 · filings San Jose Charity, 501(c)(3) $309.8 million Food Forward IncEIN 90-0678872 · filings North Hollywood Charity, 501(c)(3) $195.3 million Food Bank Contra Costa And SolanoEIN 94-2418054 · filings Concord Charity, 501(c)(3) $157.2 million Central California Food BankEIN 77-0320851 · filings Fresno Charity, 501(c)(3) $124.1 million Jacobs & Cushman San Diego Food BankEIN 20-4374795 · filings San Diego Charity, 501(c)(3) $111.0 million California Association Of Food BanksEIN 68-0392816 · filings Oakland Charity, 501(c)(3) $108.9 million Second Harvest Food Bank Of Orange County IncEIN 32-0362611 · filings Irvine Charity, 501(c)(3) $95.3 million Feeding San DiegoEIN 26-0457477 · filings San Diego Charity, 501(c)(3) $86.7 million Feeding America Riverside And San Bernardino CountiesEIN 33-0072922 · filings Riverside Charity, 501(c)(3) $78.2 million Redwood Empire Food BankEIN 68-0121855 · filings Santa Rosa Charity, 501(c)(3) $67.4 million Food In Need Of Distribution IncEIN 33-0006007 · filings Indio Charity, 501(c)(3) $52.9 million Foodshare IncEIN 77-0018162 · filings Oxnard Charity, 501(c)(3) $43.5 million
The 300 largest →
Legal aid (264) Organization City Type Revenue Legal Aid Foundation Of Los AngelesEIN 95-1684067 · filings Los Angeles Charity, 501(c)(3) $78.2 million Los Angeles Dependency Lawyers IncEIN 20-5491740 · filings Monterey Park Charity, 501(c)(3) $55.2 million California Rural Legal Assistance IncEIN 95-2428657 · filings Modesto Charity, 501(c)(3) $33.1 million Pacific Legal FoundationEIN 94-2197343 · filings Sacramento Charity, 501(c)(3) $31.6 million Public CounselEIN 23-7105149 · filings Los Angeles Charity, 501(c)(3) $23.8 million Inner City Law CenterEIN 95-3697572 · filings Los Angeles Charity, 501(c)(3) $21.9 million Inland Counties Legal ServicesEIN 95-6124556 · filings Riverside Charity, 501(c)(3) $20.1 million Legal Services Of Northern CaliforniaEIN 94-1384659 · filings Sacramento Charity, 501(c)(3) $19.3 million Community Legal Aid SocalEIN 95-1994337 · filings Santa Ana Charity, 501(c)(3) $17.5 million Immigrant Legal DefenseEIN 84-1833586 · filings Oakland Charity, 501(c)(3) $14.2 million Asian Americans Advancing Justice Southern CaliforniaEIN 95-3854152 · filings Los Angeles Charity, 501(c)(3) $13.6 million Legal Aid At WorkEIN 94-2783401 · filings San Francisco Charity, 501(c)(3) $13.3 million
The 264 largest →
Voting and civic participation (253) Organization City Type Revenue CalmattersEIN 47-2474086 · filings Sacramento Charity, 501(c)(3) $18.3 million VotingworksEIN 83-2910494 · filings San Francisco Charity, 501(c)(3) $16.0 million Fuse CorpsEIN 27-5469219 · filings San Francisco Charity, 501(c)(3) $11.1 million California Calls Education FundEIN 46-2301623 · filings Los Angeles Charity, 501(c)(3) $8.9 million Million Voter Project Action Fund Sponsored By Social Justice OrgsEIN 81-1953580 · filings Los Angeles Advocacy, 501(c)(4) $6.8 million Californians For Justice Education Fund IncEIN 94-3256009 · filings San Francisco Charity, 501(c)(3) $6.4 million Act Now ProjectEIN 92-2517254 · filings Covina Advocacy, 501(c)(4) $4.5 million Independent Voter ProjectEIN 20-4842091 · filings San Diego Advocacy, 501(c)(4) $3.0 million Voters Of Tomorrow Action IncEIN 86-3955624 · filings Los Angeles Advocacy, 501(c)(4) $2.6 million California Environmental VotersEIN 94-3169564 · filings Oakland Advocacy, 501(c)(4) $2.6 million Nextgen Education FundEIN 86-3766505 · filings San Francisco Charity, 501(c)(3) $2.6 million Inland Empire United Education FundEIN 88-3118296 · filings Los Angeles Charity, 501(c)(3) $2.4 million
The 253 largest →
Community health and reproductive care (443) Organization City Type Revenue Altamed Health Services CorpEIN 95-2810095 · filings Commerce Charity, 501(c)(3) $1.7 billion Providence Medical FoundationEIN 33-0185031 · filings Anaheim Charity, 501(c)(3) $1.5 billion City Of Hope Medical FoundationEIN 27-4803222 · filings Duarte Charity, 501(c)(3) $812.5 million Centro De Salud De La Comunidad De San Ysidro IncEIN 95-2801772 · filings San Diego Charity, 501(c)(3) $615.9 million John Muir Physician NetworkEIN 68-0360801 · filings Walnut Creek Charity, 501(c)(3) $519.2 million Sansum ClinicEIN 95-6419205 · filings Santa Barbara Charity, 501(c)(3) $404.7 million Pih Health PhysiciansEIN 95-3942828 · filings Whittier Charity, 501(c)(3) $354.9 million Adventist Health Physicans NetworkEIN 68-0357690 · filings Roseville Charity, 501(c)(3) $343.3 million United Health Centers Of The San Joaquin ValleyEIN 94-1732538 · filings Fresno Charity, 501(c)(3) $291.4 million Clinica Sierra VistaEIN 95-2707101 · filings Bakersfield Charity, 501(c)(3) $246.8 million Community Health Centers Of The Central Coast IncEIN 95-3253302 · filings Nipomo Charity, 501(c)(3) $197.9 million Northeast Valley Health CorporationEIN 23-7120632 · filings San Fernando Charity, 501(c)(3) $177.5 million
The 300 largest →
LGBTQ+ services and rights (150) Organization City Type Revenue Transgender Law CenterEIN 05-0544006 · filings Oakland Charity, 501(c)(3) $15.7 million The Translatin CoalitionEIN 27-3801872 · filings Los Angeles Charity, 501(c)(3) $12.5 million San Diego Lesbian Gay Bisexual Transgender PrideEIN 33-0619449 · filings San Diego Charity, 501(c)(3) $5.4 million Genders & Sexualities Alliance NetworkEIN 20-5367752 · filings San Francisco Charity, 501(c)(3) $5.1 million Miss Major And Alexander L Lees TgijpEIN 85-3693121 · filings San Francisco Charity, 501(c)(3) $4.9 million The Lgbtq Community Center Of The DesertEIN 33-0937301 · filings Palm Springs Charity, 501(c)(3) $4.4 million Source Lgbt Center IncEIN 81-1907707 · filings Visalia Charity, 501(c)(3) $3.4 million Equality CaliforniaEIN 95-4708781 · filings Los Angeles Advocacy, 501(c)(4) $2.3 million Christopher Street West Association IncEIN 95-3736454 · filings Burbank Charity, 501(c)(3) $2.3 million Reaching Out Mba IncEIN 06-1706646 · filings Los Angeles Charity, 501(c)(3) $2.2 million Brave TrailsEIN 46-4530883 · filings Los Angeles Charity, 501(c)(3) $1.8 million Cgrs California IncEIN 47-2970078 · filings San Francisco Charity, 501(c)(3) $1.6 million
The 150 largest →
Criminal justice reform and reentry (345) Organization City Type Revenue Crop OrganizationEIN 26-3513635 · filings Oakland Charity, 501(c)(3) $7.6 million Bail Project IncEIN 81-4985512 · filings Venice Charity, 501(c)(3) $6.5 million Resource Environment For Under- Privileged Groups EnterpriseEIN 94-3357670 · filings Oakland Charity, 501(c)(3) $6.2 million Essie Justice GroupEIN 80-0956021 · filings Oakland Charity, 501(c)(3) $6.0 million Friends OutsideEIN 94-1539901 · filings Stockton Charity, 501(c)(3) $5.7 million Turn 2 U IncEIN 46-2899930 · filings San Francisco Charity, 501(c)(3) $5.7 million Centers For Equity And Success IncEIN 94-2844443 · filings San Francisco Charity, 501(c)(3) $5.4 million Timelist Group IncEIN 46-0881011 · filings Lancaster Charity, 501(c)(3) $5.1 million For The PeopleEIN 83-3317244 · filings Oakland Charity, 501(c)(3) $4.9 million Project Avary IncEIN 68-0433289 · filings San Rafael Charity, 501(c)(3) $3.9 million Root & ReboundEIN 46-3876220 · filings San Francisco Charity, 501(c)(3) $3.9 million San Gabriel Valley Conservation And Service CorpsEIN 27-0030016 · filings El Monte Charity, 501(c)(3) $3.8 million
The 300 largest →
Matched by IRS activity code and listed by the revenue on the organization's latest return. Inclusion is not an endorsement; check an organization's own site and filings before you give. Gifts to 501(c)(4) and 501(c)(5) organizations are not tax-deductible.
Source: IRS Exempt Organizations Business Master File . Updated Nov 9, 2026.