The John M. O’Quinn Foundation
At a glance
Key takeaways
- The John M. O’Quinn Foundation's geographic focus is Texas, with priority given to Houston and its surrounding areas, so applicants should sit within this area and work in education, healthcare, environment, medical-related projects or programmes for underprivileged youth.
- About 8 in 10 of its 191 grants fall between $20,000 and $500,000, and half of those 191 grants were $50,000 or less, so a modest request in that bracket is realistic, even though the largest single grant was $2,500,000.
- Applications must be submitted by mail or delivered in person during normal business hours, as electronic submissions are not considered, and there are fixed deadlines falling in each quarter.
- In its latest filing, 88% of its grant dollars went to organisations it had also funded in its two prior filings, which points to a relationship-led, fairly competitive pattern of giving that favours existing grantees, so a new applicant should explain clearly how their organisation and project align with the Foundation's mission and its anticipated impact on Greater Houston.
- Grant requests may come from tax-exempt 501(c)(3) public charities that are not private foundations, or from governmental units; individuals, foreign charities, candidates for political office, attempts to influence legislation, private foundations and non-functionally-integrated Type III supporting organisations are not eligible and should not apply.
Overview
The John M. O’Quinn Foundation is a US private foundation based in Houston, TX.
What they fund
Profile derived from the foundation's IRS Form 990-PF filings (TY2024, TY2023, TY2022) and its website, with every statement checked against those sources. Sources read on 7 October 2026.
Priority Areas
The Foundation supports a wide variety of charitable activities, with its predominant focus in Houston and surrounding areas on education, health, environment, medical-related projects and programmes benefitting underprivileged youth. Its trustees say most grants have been awarded within Texas, with special emphasis on Houston. Grant requests may come from tax-exempt 501(c)(3) public charities that are not private foundations, or governmental units; specified Type III supporting organisations are not eligible. Applicants are asked to explain how their organisation and proposed project align with the Foundation’s mission and describe the anticipated impact on Greater Houston. Trustees make the final grant decisions.
Themes
- Conservation
- Education
- Healthcare
- Programs for underprivileged youth
Geographic Focus
Priority: Texas; Houston and its surrounding areas.
What They Don't Fund
- Individuals
- Foreign charities
- Directly or indirectly support candidates for political office
- Influence legislation
- Any public charity classified as a type III supporting organization which is “not a functionally integrated type III supporting organization” within the meaning of Section 4942(g)(4)(A)(i) of the Code
- A private foundation within the meaning of Section 509(a) of the Code
How to apply
Submit a grant request by mail or deliver it to the Foundation office during normal business hours; electronic submissions are not considered.
Deadlines: Grant submission deadlines fall in each quarter.
Application success factors
- Repeat giving: In its TY2024 filing, 88% of its grant dollars to organisations went to organisations it had also funded in its TY2022 or TY2023 filing.
- Grant size: Across its TY2022, TY2023 and TY2024 filings, half of its 191 grants to organisations were $50,000 or less.
What the foundation says:
- Applicants should explain how their organisation and proposed project align with the Foundation’s mission.
Where grants go
From grants to organisations in the foundation’s filings for tax years 2022–2024.
Grant dollars by state
- The largest single recipient received 16% of grant dollars to organisations.
- In tax year 2024, 88% of grant dollars went to organisations The John M. O’Quinn Foundation had funded in earlier filings.
- No grants were paid directly to organisations outside the US.
Grants
How much do they typically give?
Share of 78 grants in tax year 2024 by size
Median $50,000 (tax year 2024)
The largest grants to organisations in the foundation’s latest filing:
- Harris Health Strategic Fund · Support 10-year strategic facilities plan$2,000,0002024 tax year
- Memorial Hermann Foundation · To support the expansion of life flight fleet$1,000,0002024 tax year
- Houston Methodist Hospital Foundation · To support stanley appel dept. of neurology$1,000,0002024 tax year
- Memorial Hermann Foundation · To support the expansion of life flight fleet$1,000,0002024 tax year
- Harris Health Strategic Fund · Support 10-year strategic facilities plan$1,000,0002024 tax year
- Houston Methodist Hospital Foundation · To establish four permanent endowments in stanley appel dept. of neurology$1,000,0002024 tax year
- Crime Stoppers of Houston · To support safe school institute$500,0002024 tax year
- Kinkaid School · To endow the dir. of center for wellbeing and success$500,0002024 tax year
Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.
Officers and directors
- W Jeffrey Paine — Trustee
- Robert C Wilson IV — Trustee
- Michael J Lowenberg — Vice President, Trustee
- David A Ott MD — Vice President, Trustee
- Robert C Wilson III — President / Treasurer, Trustee
From the latest Form 990-PF filing
3 years of tax filings
| Year | Total expenses | Grants paid | Assets | Filing document |
|---|---|---|---|---|
| 2022 tax year | $14,060,231 | $12,293,925 | $247,999,611 | Filing for 2022 tax year |
| 2023 tax year | $13,437,355 | $11,674,000 | $292,784,280 | Filing for 2023 tax year |
| 2024 tax year | $17,204,850 | $15,010,000 | $325,198,769 | Filing for 2024 tax year |
Figures from the foundation’s IRS Form 990-PF filings. Assets are at fair market value at year end. The document icon links to each year’s filing on ProPublica Nonprofit Explorer.
Sources
Registers and filings
Other sources
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At a glance

Applying to The John M. O’Quinn Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- (713) 871-5860
- shireen@oquinnfoundation.org
- mick@oquinnfoundation.org
- Houston, TX
- oquinnfoundation.org

Applying to The John M. O’Quinn Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- (713) 871-5860
- shireen@oquinnfoundation.org
- mick@oquinnfoundation.org
- Houston, TX
- oquinnfoundation.org