GivalgoGivalgo DiscoverBeta

Looking for a specific nonprofit?

Search 1.9 million IRS-registered organisations by name, EIN, sector, or location.

Start a search

California · NTEE Z

Unknown Nonprofits in California

Givalgo Discover indexes 50 active unknown 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.

#OrganisationRevenue
1CALSTART INC
EIN 95-4375022
$396.8M
2COMMUNITY RESEARCH FOUNDATION INC
EIN 95-3248148
$116.2M
3INDEPENDENT ORDER OF ODD FELLOWS
EIN 94-1251113
$85.3M
4BORREGO COMMUNITY HEALTH FOUNDATION
EIN 33-0440021
$79.0M
5BABY2BABY
EIN 46-4503539
$77.7M
6LAKE COUNTY TRIBAL HEALTH CONSORTIUM INC
EIN 94-2847137
$73.1M
7GALLO EMPLOYEE BENEFIT TRUST
EIN 94-2334925
$70.0M
8TACO BELL FOUNDATION INC
EIN 33-0523542
$56.3M
9CENTRAL CITY COMMUNITY HEALTH CENTER INC
EIN 95-4492570
$53.0M
10NEXTGEN CLIMATE ACTION
EIN 46-1957345
$38.5M
11SOUTH COAST CHILDRENS SOCIETY INC
EIN 33-0521169
$34.3M
12PRO-YOUTH
EIN 77-0337714
$33.9M
13AFTER-SCHOOL ALL-STARS
EIN 95-4441208
$28.5M
14FOOD BANK FOR MONTEREY COUNTY
EIN 77-0270228
$27.9M
15PARENTS IN TRAINING INC
EIN 68-0340537
$25.9M
16COMMUNITY HOUSING DEVELOPMENT CORPORATION OF NORTH RICHMOND
EIN 68-0235719
$25.2M
17THE COMMONWEALTH CLUB - WORLD AFFAIRS OF CALIFORNIA
EIN 94-0399260
$24.5M
18OAK GROVE INSTITUTE FOUNDATION INC
EIN 33-0470446
$24.2M
19LAO FAMILY COMMUNITY DEVELOPMENT INC
EIN 94-3115164
$23.2M
20BOYS & GIRLS CLUBS OF SONOMA-MARIN
EIN 68-0309534
$21.7M
21THE PACIFIC FOREST TRUST INCORPORATED
EIN 68-0292509
$21.7M
22TRANSITIONS - MENTAL HEALTH ASSOCIATION
EIN 95-3509040
$20.7M
23INTERNATIONAL MYELOMA FOUNDATION
EIN 95-4296919
$19.0M
24PROSPECT SIERRA SCHOOL
EIN 94-2940144
$17.9M
25SONOMA VALLEY COMMUNITY HEALTH CENTER
EIN 68-0286382
$16.6M
26NEURAL INFORMATION PROCESSING SYSTEMS FOUNDATION INC
EIN 95-4364881
$15.2M
27NAMI SAN DIEGO
EIN 33-0122462
$15.1M
28ALLIANCE FOR CHILDRENS RIGHTS
EIN 95-4358213
$14.4M
29ORANGE HOUSING DEVELOPMENT CORPORATION
EIN 33-0427434
$13.0M
30ART OF LIVING FOUNDATION
EIN 77-0240101
$12.7M
31TIKVAH-ETTA & LAZEAR ISRAEL CENTER FOR THE DEVELOPMENTALLY DISABLED
EIN 95-4308644
$12.7M
32KNOTTS FAMILY AGENCY
EIN 33-0248851
$12.4M
33FRED BROWNS RECOVERY SERVICES INC
EIN 33-0491967
$11.8M
34CALIFORNIA HOUSING PARTNERSHIP
EIN 68-0183692
$10.8M
35NATIONAL CONFLICT RESOLUTION CENTER
EIN 33-0433314
$10.4M
36RANCHO RESEARCH INSTITUTE
EIN 95-1911180
$10.0M
37PLUMAS CORPORATION
EIN 68-0016418
$10.0M
38ASIAN PACIFIC COMMUNITY FUND OF SOUTHERN CALIFORNIA
EIN 95-4257997
$9.9M
39UPWARD BOUND HOUSE
EIN 95-4288926
$9.7M
40INTERNET SECURITY RESEARCH GROUP
EIN 46-3344200
$9.6M
41ORANGE COUNTY ASSOCIATION FOR MENTAL HEALTH
EIN 95-2036972
$9.0M
42YOUTH ALIVE
EIN 94-3143254
$8.9M
43AGE WELL SENIOR SERVICES INC
EIN 93-1163563
$8.6M
44HOMESTEAD SCHOOLS INC
EIN 33-0499514
$8.5M
45GOOD SAMARITAN FAMILY RESOURCE CENTER OF SAN FRANCISCO
EIN 94-3154078
$8.2M
46NORTHERN CALIFORNIA VOLLEYBALL ASSOCIATION
EIN 77-0138713
$8.0M
47TESTIMONIAL COMMUNITY LOVE CENTER
EIN 95-4376926
$7.9M
48SAN FRANCISCO NETWORK MINISTRIES HOUSING CORPORATION
EIN 94-3151580
$7.9M
49FOOTHILL UNITY CENTER
EIN 95-4310817
$7.3M
50WESTERN EAGLE FOUNDATION INC
EIN 33-0498064
$7.1M

Frequently asked questions about unknown nonprofits in California

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

How many unknown nonprofits operate in California?
Every IRS-registered unknown 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 unknown nonprofit in California?
The single largest unknown 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 unknown 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 unknown nonprofits tax-deductible?
Federal deductibility is determined by IRS Publication 78 status, not state location. Donations to a Pub 78-listed unknown nonprofit in California are tax-deductible at the federal level; California state tax treatment may differ.
Where do unknown 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.