Foundations that fund organizations in Ontario, California

Worked out from where the grants went, not where the foundations sit.

Funding landscape for Ontario nonprofits

60 private foundations gave $6.3M to Ontario organizations in their latest filings; 22 of the 60 that say either way accept applications.

77 grants in total, with a typical foundation's median grant to Ontario around $5,000. 41 of these funders are based in California; the rest give here from elsewhere.

Foundations giving here
60
Accept applications
22
of 60 that state a policy
Dollars to Ontario
$6.3M
latest filings
Grants
77
Typical median grant
$5,000
Based in CA
68%
of funders listed

Funders, by dollars given to Ontario organizations

FoundationBased inGrants hereDollars hereMedianAccepts applicationsTypical purposes
The James Irvine FoundationSan Francisco, CA4$3.3M$642KPreselected onlyTo support Priority Communities in California; To support student training; To support Fair Work in California
Lilly Endowment IncIndianapolis, IN1$1.0M$1.0MYesPathways for tomorrow initiative
The California EndowmentLos Angeles, CA4$350K$88KPreselected onlyGeneral operating support; Improving health of the lgbtqia+ community
Jpmorgan Chase FoundationNew York, NY2$251K$126KPreselected onlyIn support of underserved small business expansion; Matching contribution (general operating support)
The Satterberg Foundation IncSeattle, WA1$160K$160KYesGeneral operating support
Weingart FoundationLos Angeles, CA2$150K$75KYesConvening of storytellers and trusted messengers; Unrestricted operating support
Marilyn J Degroot Charitable TrustLos Angeles, CA1$125K$125KPreselected onlyGeneral charitable support
Golden State Environmental Justice AllianceCorona, CA1$125K$125KPreselected onlyTo provide assistance for previously homeless veteran famil…
The Nathan Cummings Foundation IncNew York, NY1$100K$100KYesGeneral support
Sunrise FoundationRancho Cucamonga, CA1$100K$100KPreselected onlyDonation
Rathmann Family Foundation C/O Martinbrown PllcNaples, FL1$100K$100KPreselected onlyGeneral operating activities
A&j Kay Family Foundation C/O Bdo USA PcLos Angeles, CA1$96K$96KPreselected onlyCharitable purposes of the organization
California Physicians' Service Fdn Dba Blue Shield of California FdnSan Francisco, CA1$65K$65KYesAct now: support for los angeles worker center network
Wells Fargo FoundationMinneapolis, MN1$60K$60KPreselected onlyEntrepreneur Ecosystem and Small Business Incubator Program
The Joseph Bailey FoundationOntario, CA2$55K$28KPreselected onlyGeneral operating
Iqair FoundationLA Mirada, CA1$39K$39KPreselected onlyProviding equipment to provide clean air.
Shiraki Memorial FoundationHonolulu, HI1$22K$22KYesScholarship for seminary students
James L White FoundationPalm Desert, CA3$20K$5,000YesGeneral gift
Chaiken Family Foundation II Aka Roll and Chaiken FoundationReno, NV1$20K$20KPreselected onlyProgram support
The Marvin Ronald Bernstein FoundationUpland, CA2$17K$8,250Preselected onlyOntario christian high school chapel; 2025 mrbf discretionary grant
Wadsworth Golf Charities FoundationPlainfield, IL1$15K$15KYesTo further the foundation's exempt purposes.
The Brackpool Family FoundationLos Angeles, CA1$12K$12KPreselected onlyProvide sustainable life skills for youth
Sheepgate FoundationAlta Loma, CA1$11K$11KYesTo support and further christian education
Ethel Josephine Scantland FoundationLong Beach, CA1$11K$11KYesTo help disabled persons prepare for employment.
Gamj Family FoundationDiamond Bar, CA1$11K$11KPreselected onlyGeneral support
Williams-Sonoma Inc FoundationSan Francisco, CA1$10K$10KPreselected onlyGeneral Support
The Louis and Harold Price Foundation IncDenver, CO1$10K$10KPreselected onlyGeneral Support
Ontario Community FoundationUpland, CA2$10K$5,000YesLive Art Demonstration; Screen Printing et al
Dr Prem Reddy Family FoundationVictorville, CA2$9,000$4,500YesScholarship
Rise Up FoundationOrange, CA1$8,837$8,837Preselected onlyPurchase books
Yocom Family FoundationNorco, CA1$7,500$7,500Preselected onlyTo support the community by raising funds for various chari…
Jsz Yucca FoundationKaty, TX1$7,000$7,000Preselected onlyChritable donation
Harley-Davidson Foundation IncMilwaukee, WI2$6,000$3,000Preselected onlyGrant
John P Previti Memorial FoundationOntario, CA2$5,550$2,775YesTo support female accomplish their academic and professiona…; To provide tuition assistance to students in need
Carl E Wynn FoundationLos Angeles, CA1$5,000$5,000YesProvide care for the ill and disabled in the community who…
Nobbs Family FoundationSan Diego, CA1$5,000$5,000Preselected onlyTo provide funds for charitable activities
Banc of California Charitable FoundationSanta Ana, CA1$5,000$5,000YesThe purpose of this grant is to support community developme…
Hmc Designing Futures FoundationOntario, CA1$5,000$5,000Preselected onlyCover expoenses, replace equipment and complete repairs cau…
Stanley W Ekstrom Foundation IncSanta Ana, CA1$5,000$5,000YesAnnual golf tournament
The Scherrer FoundationLos Angeles, CA1$5,000$5,000Preselected onlyFurther the organization's charitable purpose.
Helpful Fish Private FoundationSanta Ana, CA1$5,000$5,000Preselected onlySupport local nonprofit organizations or charitable causes.
Luberski Family Foundation IncFullerton, CA1$5,000$5,000YesGeneral operating grant
Landes Family FoundationSt Joseph, MO1$5,000$5,000YesGeneral Purposes
Art Bridges IncFort Worth, TX1$5,000$5,000Preselected onlyTo support evaluation activities to better understand audie…
Faithful Servants FoundationYorba Linda, CA1$4,330$4,330Preselected onlyReligious training
Reissa FoundationWilmington, DE1$3,000$3,000Preselected onlyGeneral & Unrestricted
The Gray Family FoundationWoodland, CA1$2,500$2,500Preselected onlyGeneral Support for assisting people with intellectual and…
Sempra FoundationSan Diego, CA2$2,220$1,110Preselected onlyHealth; Education
The Cappello FoundationSanta Barbara, CA1$2,011$2,011Preselected onlyGeneral fund
Thornton S Jr and Katrina D Glide FoundationDavis, CA1$2,000$2,000YesGeneral and emergency medical care for intake and current a…
Christian Business MinistriesOntario, CA1$1,677$1,677YesCommunity benevolence
Teamsters Local 986 Charity Fund IncCovina, CA1$1,500$1,500Preselected onlyDonation to cover practice equipment for Little League
Sherman Family FoundationBaltimore, MD1$1,500$1,500Preselected onlyGeneral operations
The Joseph & Katherine Castucci FoundationWest Covina, CA1$1,000$1,000Preselected onlyGeneral contribution
Haskell FundCleveland, OH1$1,000$1,000YesDesignated for childhood education
The Okinaka Foundation for Social and Environmental JusticeChino Hills, CA1$1,000$1,000Preselected onlySupporting studens, faculty and academic programs
Ligenh Mission FoundationLos Altos, CA1$600$600Preselected onlyTo support the organization's mission of being a theologica…
Addo Foundation IncAtlanta, GA1$500$500YesEducation support
The Howard and Nikki Applebaum Foundation TrustChino Hills, CA1$500$500Preselected onlyHelping the needy
The Pfizer Foundation IncNew York, NY1$40$40Preselected onlyVolunteer program

Source: IRS Form 990-PF Part XV, latest electronic return per foundation (2026-10-28). "Accepts applications" reflects the foundation's own checkbox on Part XV line 2. Grants to individuals excluded.

Common questions

Which foundations give to nonprofits in Ontario, California?

The James Irvine Foundation, Lilly Endowment Inc, The California Endowment, Jpmorgan Chase Foundation, The Satterberg Foundation Inc and 55 others reported grants to Ontario organizations on their latest Form 990-PF.

How do I approach a foundation that doesn't accept applications?

A foundation that checks "contributes only to preselected organizations" on its 990-PF won't review a cold proposal. Look at who it funds, find a shared board member, grantee or advisor, and ask for an introduction. Foundations that accept applications usually list a contact and deadlines in Part XV; we show that text on each foundation's page.

Is this list complete?

No. It covers private foundations (Form 990-PF filers) whose latest electronic return lists at least one grant to an organization in Ontario. Community foundations and corporate giving programs file different forms and are not included yet.

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