How many mutual benefit nonprofits operate in California?

Every IRS-registered mutual benefit nonprofit in California appears in the Givalgo Discover index. The top 50 by reported revenue are listed on this page; the full set is searchable on discover.givalgo.ai.

What's the largest mutual benefit nonprofit in California?

The single largest mutual benefit nonprofit in California by reported total revenue is shown at the top of the list on this page, sourced from each organisation's most recent IRS Form 990 filing.

How do I vet a mutual benefit nonprofit in California before donating?

Use Givalgo Discover's free profile for the organisation: it cross-references the IRS Auto-Revocation List, IRS Publication 78, and the IRS Business Master File, and exposes the latest Form 990 financials and governance signals on a single page.

Are donations to California mutual benefit nonprofits tax-deductible?

Federal deductibility is determined by IRS Publication 78 status, not state location. Donations to a Pub 78-listed mutual benefit nonprofit in California are tax-deductible at the federal level; California state tax treatment may differ.

Where do mutual benefit nonprofits in California file their Form 990?

All US tax-exempt organisations file Form 990 with the IRS at the federal level — there is no state-specific filing for the federal exemption itself. California state charity registration is a separate state-level requirement.

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California · NTEE Y

Mutual Benefit Nonprofits in California

Givalgo Discover indexes 50 active mutual benefit nonprofits headquartered in California. The list below is sorted by reported revenue on the most recent Form 990 indexed for each organisation.

Top 50 by reported revenue

From the most recent Form 990 indexed for each organisation. Click an org for full diligence detail.

#	Organisation	Revenue
1	LOKAHI ASSURANCE LTD EIN 91-2171891	$967.5M
2	INSURANCE AND BENEFITS TR OF PEACE OFFICERS RESEARCH ASSOC OF CA EIN 68-6068469	$243.4M
3	SOUTHERN CALIFORNIA PIPE TRADES HEALTH AND WELFARE FUND EIN 95-1867598	$190.1M
4	OPERATING ENGINEERS LOCAL UNION NO 3 VACATION HOLIDAY AND SICK PAY EIN 81-6631261	$174.6M
5	DISTRICT COUNCIL 16 NORTHERN CALIFORNIA HEALTH AND WELFARE TRUS EIN 41-2261950	$135.0M
6	NONPROFITS INSURANCE ALLIANCE OF CALIFORNIA EIN 77-0203935	$134.2M
7	OCU HEALTH & WELFARE TRUST EIN 26-1574455	$123.8M
8	ALLIANCE OF NONPROFITS FOR INSURANCE RISK RETENTION GROUP INC EIN 06-1555320	$117.7M
9	AFM & SAG-AFTRA INTELLECTUAL PROPERTY RIGHTS DISTRIBUTION FUND EIN 95-4815790	$84.0M
10	CALIFORNIA INSTITUTE OF TECHNOLOGY RETIREE MEDICAL PLAN JPL VEBA TR EIN 37-6581075	$75.5M
11	UDW AFSCME LOCAL 3930 RIVERSIDE COUNTY BENEFITS TRUST EIN 46-4169367	$62.6M
12	UNITED DOMESTIC WORKERS BENEFITS TRUST EIN 30-6116859	$47.4M
13	WASHINGTON STATE COUNCIL OF FIRE FIGHTERS EMPLOYEE BENEFIT TR EIN 91-2009771	$46.8M
14	QUAYE AT WELLINGTON INC EIN 82-5148693	$45.4M
15	CKPU-KP EDUCATION & TRAINING TRUST FUND EIN 20-5219583	$42.9M
16	BOILERMAKER VACATION TRUST EIN 94-2630417	$42.2M
17	UDW AFSCME 3930 SAN DIEGO HEALTH AND BENEFITS TRUST EIN 27-6135515	$40.1M
18	GROUP BENEFIT PLAN AGREEMENT AND DECLARATION OF TRUST FOR ORANGE EIN 33-6216448	$40.0M
19	SAN BERNARDINO COUNTY RETIREMENT MEDICAL TR EIN 33-6305813	$39.1M
20	PRODUCERS HEALTH BENEFITS PLAN RALEIGH STUDIOS EIN 31-6654730	$37.1M
21	ARCHDIOCESE OF LOS ANGELES FUNERAL AND MORTUARY SERVICES CORPORATION EIN 81-3006840	$34.5M
22	UFCW COMPREHENSIVE BENEFITS TRUST EIN 82-2616834	$32.3M
23	TRANSPORTATION COMMUNICATIONS INTL UNIN LA MET TRANS AUTH HLTH WEL TR EIN 95-6118545	$30.7M
24	NONPROFITS UNITED WORKERS COMPENSATION GROUP INC EIN 68-0590352	$30.5M
25	FERNANDEZ HOLDINGS HEALTH TR EIN 82-6735744	$25.3M
26	LOS ANGELES POLICE PROTECTIVE LEAGUE BENEFITS TRUST EIN 61-6402285	$25.2M
27	ASSOCIATED BUILDERS & CONTRACTORS INC EIN 33-6227695	$23.7M
28	SHEET METAL WORKERS LOCAL 206 HEALTH BENEFIT TRUST EIN 45-4844178	$23.1M
29	AMGEN INC VOLUNTARY EMPLOYEES BENEFICIARY ASSOCIATION TRUST EIN 26-1582113	$23.0M
30	CALIFORNIA CHARTER SCHOOLS ASSOCIATION EMPLOYEE WELFARE BENEF EIN 61-6357929	$20.9M
31	LOMA LINDA UNIVERSITY ADVENTIST HEALTH SCIENCES CNTR LIABILITY TR EIN 36-6821892	$20.7M
32	CARPENTERS FUND ADM EIN 94-1557079	$19.7M
33	ORANGE COUNTY EMPLOYEES ASSOCIATION BENEFIT PLANS EIN 33-0660405	$19.1M
34	NATIONAL ALLIANCE OF NONPROFITS FOR INSURANCE INC EIN 06-1555321	$17.6M
35	SOUTHERN CA PIPE TRADES PENSIONERS & SURVIVING SPOUSES HEALTH TRUST EIN 27-4271742	$16.0M
36	VISION SERVICE PLAN POST RETIREMENT WELFARE BENEFITS PROGRAM EIN 52-7325750	$14.4M
37	SEIU LOCAL 2015 LONG TERM CARE WORKERS HEALTH TRUST FUND EIN 20-4570305	$12.5M
38	CHP 11 99 FOUNDATION EIN 95-6530738	$12.3M
39	OPEN SOURCE COLLECTIVE EIN 82-2037583	$12.1M
40	PUBLIC EMPLOYEE BENEFIT TR OF CA EIN 20-6383829	$11.9M
41	TEAMSTER SANITATION INDUSTRY TR FUND EIN 46-6785860	$11.6M
42	LONG-TERM DISABILITY VOLUNTARY EMPLOYEES BENEFICIARY ASSOCIATION EIN 95-7086061	$11.3M
43	SOLANO-NAPA COUNTIES ELECTRICAL WORKERS HEALTH & WELFARE TRUST EIN 94-6085742	$10.1M
44	COALITION FOR CONTROLLING INS COSTS IN CA SCHOOLS HEALTH & WELFARE TR EIN 80-6028938	$10.1M
45	OXNARD SCHOOL DISTRICT RETIREE HEALTH BENIFIT PLAN EIN 77-6176476	$9.2M
46	RESTAURANT INDUSTRY HEALTH AND WELFARE TR FUND EIN 46-6362158	$9.1M
47	MEETINGS ASSESSMENT PARTNERSHIP EIN 99-0692129	$8.7M
48	DUDEK HEALTH AND WELFARE TR EIN 85-6679037	$8.7M
49	WESTERN REGION EMPLOYEE BENEFIT TR EIN 35-6967427	$8.3M
50	SANTA MONICA CITY EMPLOYEE COALITION BENFIT TR EIN 30-6001608	$8.1M

Frequently asked questions about mutual benefit nonprofits in California

Answers compiled from the IRS Form 990, BMF, Pub 78, and Auto-Revocation List.

How many mutual benefit nonprofits operate in California?: Every IRS-registered mutual benefit nonprofit in California appears in the Givalgo Discover index. The top 50 by reported revenue are listed on this page; the full set is searchable on discover.givalgo.ai.
What's the largest mutual benefit nonprofit in California?: The single largest mutual benefit nonprofit in California by reported total revenue is shown at the top of the list on this page, sourced from each organisation's most recent IRS Form 990 filing.
How do I vet a mutual benefit nonprofit in California before donating?: Use Givalgo Discover's free profile for the organisation: it cross-references the IRS Auto-Revocation List, IRS Publication 78, and the IRS Business Master File, and exposes the latest Form 990 financials and governance signals on a single page.
Are donations to California mutual benefit nonprofits tax-deductible?: Federal deductibility is determined by IRS Publication 78 status, not state location. Donations to a Pub 78-listed mutual benefit nonprofit in California are tax-deductible at the federal level; California state tax treatment may differ.
Where do mutual benefit nonprofits in California file their Form 990?: All US tax-exempt organisations file Form 990 with the IRS at the federal level — there is no state-specific filing for the federal exemption itself. California state charity registration is a separate state-level requirement.