The Harry and Diane Rinker Foundation
The Harry and Diane Rinker Foundation is a private foundation, based in Newport Beach, CA. IRS filing data is available from 2020 through 2021. In 2021, it awarded 8 grants totaling $502K. Net investment income was $295.
The Harry and Diane Rinker Foundation at a glance
In short: The Harry and Diane Rinker Foundation gave $502K across 8 grants in 2021 (avg $63K), mostly in California. Source: 2021 IRS Form 990-PF.
- Annual giving (2021)
- $502,176
- +9943.5% vs 2020
- Grants made (2021)
- 8
- +700.0% vs 2020
- Average grant
- $62,772
- +1155.4% vs 2020
- Median grant
- $69,000
- Primary geography
- California (80% of itemized 2021 grant dollars)
- Latest 990 filing
- Form 990-PF, 2021 View filing
Data from IRS Form 990-PF, 2021; updated September 2026.
Who The Harry and Diane Rinker Foundation funds
How this funder distributes its grants
Top Recipients
Top 8 recipients in 2021
The largest 2021 recipient was Eisenhower Medical Center ($125K). Together the top 8 received $502K.
Grant Size Distribution
9 grants across all recorded years
The most common grant size was under $50K: 5 grants of 9 (56%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2021 grant dollars across all 8 itemized grants.
States
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2020 to 2021, annual grant giving ranged from $5K (2020) to $502K (2021). In 2021 it made 8 grants totaling $502K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Eisenhower Medical Center Rancho Mirage, CA | Provide Medical Funding | $125,000 |
| Chapman University Orange, CA | Provide Funding for Educational Purposes | $125,000 |
| Hoag Hospital Foundation Newport Beach, CA | Provide Medical Funding - Health | $100,000 |
| The University of Texas MD Anderson Cancer Center Houston, TX | Provide for Funding for Cancer Research | $100,000 |
| Claremont McKenna College Claremont, CA | Provide for Educational Funding | $38,000 |
| CDM Aquatics Federation Newport Beach, CA | Funding for Youth Sports | $10,000 |
| Salvation Army Orange County Tustin, CA | Provide Funding for the Homeless | $3,676 |
| American Diabetes Assoc Arlington, VA | Provide Funding for Health Causes | $500 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2021 | — | $217 | $502,195 | $502,176 | 8 | $502,176 | $295 | — |
| 2020 | $501,964 | $-37,616 | $6,082 | $5,000 | 1 | — | $2,534 | $23,014 |
Leadership & Key People
Officers and directors from IRS filings
The Harry and Diane Rinker Foundation is led by Harry S. Rinker, President on every filing since 2020; none of the 2 officers listed in 2021 report compensation.
Officers on the 2021 filing
Harry S. Rinker
President
On filings since 2020
No compensation reported
Diane J. Rinker
Secretary
On filings since 2020
No compensation reported
Data from IRS Form 990 filings, 2020–2021. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about The Harry and Diane Rinker Foundation
How much does The Harry and Diane Rinker Foundation give each year?
The Harry and Diane Rinker Foundation gave $502K across 8 grants in 2021, according to its 2021 IRS Form 990-PF. In 2020 it gave $5K across 1 grant.
What is The Harry and Diane Rinker Foundation's typical grant size?
The Harry and Diane Rinker Foundation's median grant in 2021 was $69,000, and its average grant was $62,772, across 8 grants on its 2021 IRS Form 990-PF.
Where does The Harry and Diane Rinker Foundation give grants?
The Harry and Diane Rinker Foundation gives mostly in California: 80% of the grant dollars itemized on its 2021 IRS Form 990-PF went to recipients there. The next largest state was Texas (20%). The most frequent recipient cities were Newport Beach, CA (2 grants).
Does The Harry and Diane Rinker Foundation give general operating support?
Not in 2021: none of the 8 grants with a stated purpose on The Harry and Diane Rinker Foundation's 2021 IRS Form 990-PF were described as general or operating support.
Who are The Harry and Diane Rinker Foundation's largest grantees?
The Harry and Diane Rinker Foundation's largest 2021 grantees include Eisenhower Medical Center ($125,000), Chapman University ($125,000) and Hoag Hospital Foundation ($100,000), according to its 2021 IRS Form 990-PF. Together they received 70% of its itemized 2021 grant dollars.
What is The Harry and Diane Rinker Foundation's EIN?
The Harry and Diane Rinker Foundation's EIN (Employer Identification Number) is 33-0757925. IRS Form 990 filing data is available on this page for 2020–2021.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2020–2021
Live grants for the work The Harry and Diane Rinker Foundation funds
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