John G. Rangos, Sr. Charitable Foundation
At a glance
Key takeaways
- The foundation's themes, drawn from its grants rather than stated by the foundation, are medical and scientific research and education, so a request fits best if it clearly serves one of those fields.
- The filing shows $50,000 paid in annual giving and one recorded organisation grant, to a science centre, so a modest request is more realistic, though no grant range is stated.
- The filing gives no application form, deadline, eligibility rules or application route, so ask the foundation how it takes requests before writing a full proposal.
- No geographic focus is stated, so location alone should not rule you out, although the grants shown are mainly in Pennsylvania, which is worth knowing when you make contact.
- The material does not say how competitive the foundation is or whether personal contacts matter, so approach it with a short, clear enquiry rather than assuming either way.
Overview
John G. Rangos, Sr. Charitable Foundation is a US private foundation based in Dallas, TX.
What they fund
Profile based on the foundation's IRS Form 990-PF filings (TY2023, TY2022) only. Every statement is checked against the filings. Sources read on 7 October 2026.
Priority Areas
The filing describes grants to tax-exempt organisations for medical and scientific research and education. Its recorded organisation grant went to a science centre. The stated purpose wording names fields but does not set out separate grant programmes or distinguish award types. The grant record documents one organisation recipient, and by itself does not describe the broader mix of organisations the foundation supports. The filed application information gives no required form or other information and names no deadline. The materials do not state applicant eligibility or an application route.
Themes
From its grants, not stated by the foundation:
- Medical and scientific research
- Education
Geographic Focus
No geographic focus is stated; the filings show grants mainly in Pennsylvania.
Where grants go
From grants to organisations in the foundation’s filings for tax years 2022–2023.
Grant dollars by state
- The largest single recipient received 100% of grant dollars to organisations.
- No grants were paid directly to organisations outside the US.
Grants
The largest grants to organisations in the foundation’s latest filing:
- Camegie Science Center · Grants are paid to tax exempt organizations for medical and scientific research, education, the envi$50,0002023 tax year
Grants to organisations listed in the foundation’s Form 990-PF filings. Grants to individuals are not shown.
Officers and directors
- Jenica Rangos Welch — Trustee
- Jill Rangos — Trustee
- Alexander W Rangos — Trustee
- John G Rangos Jr — Trustee
From the latest Form 990-PF filing
2 years of tax filings
| Year | Total expenses | Grants paid | Assets | Filing document |
|---|---|---|---|---|
| 2022 tax year | $99,352 | $0 | $19,242,878 | Filing for 2022 tax year |
| 2023 tax year | $253,388 | $50,000 | $35,591,702 | Filing for 2023 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 John G. Rangos, Sr. Charitable Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- (412) 871-6120
- Dallas, TX
- rangosfoundation.org

Applying to John G. Rangos, Sr. Charitable Foundation?
Hinchilla drafts your answers around this funder's priorities, using your organisation's own documents.
No credit card required
Contact
- (412) 871-6120
- Dallas, TX
- rangosfoundation.org