Rosztoczy Foundation
The Rosztoczy Foundation is a private foundation based in Avondale, Arizona. It supports scholarships for Hungarian students to study or conduct research in the United States and college opportunities for students at Michael Anderson School.
Rosztoczy Foundation at a glance
In short: Rosztoczy Foundation gave $680K across 30 grants in 2025 (avg $23K), mostly in Arizona. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $680,019
- -14.4% vs 2024
- Grants made (2025)
- 30
- -31.8% vs 2024
- Average grant
- $22,667
- +25.5% vs 2024
- Median grant
- $15,000
- Total assets
- $15,574,417
- +63.1% vs 2024
- Primary geography
- Arizona (61% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
How to apply to Rosztoczy Foundation
- How to Apply
-
The filing lists applications and recommendations by email or mail and identifies Diane Rosztoczy as the contact. For the Hungarian Scholarship Program, applicants are instructed to contact a member of the Hungarian Selection Committee and arrange an evaluation meeting.
- Review Cycle
- None, according to the filing.
- Deadline
- None, according to the filing.
- Contact
Application contact: Diane Rosztoczy
Mailing address: 1010 Acacia Circle, Litchfield Park, AZ 85340
Phone: (623) 936-7131
Email: ferenc@rosztoczyfoundation.com
Website: https://rosztoczyfoundation.com
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Rosztoczy Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was E3 Africa ($100K). Together the top 10 received $430K.
Organizations only. It also paid 19 individual scholarships ($246,000), which are not listed by name.
Grant Size Distribution
202 grants across all recorded years
The most common grant size was under $50K: 187 grants of 202 (93%).
Geographic Focus
Where this funder awards grants
The foundation’s website says Hungarian Scholarship recipients study or conduct research at institutions throughout the United States. In 2025, 61% of grant dollars went to recipients in Arizona, followed by New York (11%), Massachusetts (6%), California (5%), and Maryland (5%).
Grant Distribution by State
Share of 2025 grant dollars across all 30 itemized grants.
States
Cities
How Rosztoczy Foundation gives
- Giving held roughly steady from 2022 to 2025 (+16%). Method
- In 2025 it paid out 105% of its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2025, annual grant giving ranged from $307K (2021) to $795K (2024). In 2025 it made 30 grants totaling $680K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| E3 Africa Scottsdale, AZ | Donation | $100,000 |
| Grand Canyon University Phoenix, AZ | Scholarship College Promise Program | $76,900 |
| Northern AZ University Flagstaff, AZ | Scholarship College Promise Program | $64,500 |
| AZ College of Nursing Phoenix, AZ | College Promise Scholarships | $60,997 |
| Arizona State University Tempe, AZ | Scholarships College Promise Program | $50,480 |
| 19 individual scholarships Recipients not named | — | $246,000 |
| West Valley Christian School Goodyear, AZ | Donation | $25,000 |
| National Center for Families Learning Louisville, KY | Donation for family literacy model for avondale schl district | $22,500 |
| Garden House Foundation Phoenix, AZ | Donation | $15,000 |
| Donorchooseorg New York, NY | Donation #13-4129457 | $10,000 |
Ready to take the next step with Rosztoczy Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $15,574,417 | $6,957,607 | $733,032 | $680,019 | 30 | $676,910 | $4,428,294 | $646,915 |
| 2024 | $9,547,409 | $3,857,578 | $844,811 | $794,720 | 44 | $794,720 | $120,669 | $208,103 |
| 2023 | $6,479,984 | $2,141,502 | $623,790 | $593,916 | 43 | $593,916 | $227,961 | $184,056 |
| 2022 | $4,962,272 | $2,772,494 | $627,963 | $586,218 | 62 | $586,218 | $93,973 | $110,657 |
| 2021 | $2,817,741 | $700,242 | $359,653 | $307,000 | 23 | — | $83,820 | $97,508 |
Under IRS private-foundation payout rules, Rosztoczy Foundation reported a distributable amount of $647K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated October 2026.
Mission & Focus Areas
The foundation’s website uses “Providing Opportunities” to describe its work. Its stated programs focus on educational scholarships and college access.
In 2025, the foundation’s grants included scholarships through Arizona universities and other institutions, as well as support for organizations. Among the grantees, National Center for Families Learning describes its mission as working to eradicate poverty through education solutions for families. West Valley Christian School says its mission is to equip students for life through academic excellence, a biblical foundation, and a Christ-centered community. Garden House Foundation describes its work as providing a safe surrogate-family environment for foster children needing long- or short-term care.
Grantmaking
In filing year 2025, the foundation made 30 grants totaling $680,019. Grants ranged from $2,500 to $100,000, with a median of $15,000. The largest listed grants included $100,000 to E3 Africa; $76,900 to Grand Canyon University; $64,500 to Northern Arizona University; $60,997 to Arizona College of Nursing; and $50,480 to Arizona State University. The university awards were designated for scholarships or the College Promise Program. E3 Africa’s grant was listed as a donation.
The foundation also gave $25,000 to West Valley Christian School and $22,500 to National Center for Families Learning. The latter grant was designated for a family literacy model for the Avondale School District. Other listed awards included scholarships to individual recipients.
The foundation’s website says Hungarian Scholarship applicants must be living in Hungary and must not have previously studied or conducted research in the United States. Applicants need an invitation from a professor or scientist at a U.S. institution for 12 months of study or research, as well as an application, recommendations, a current CV, and a letter of intent; a publication list is requested if applicable. Undergraduate scholarships are not offered. The website recommends submitting at least one year before the next academic year. Separately, the foundation’s filing says applications and recommendations can be submitted by email or mail, and that there are no restrictions on awards.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Diane Rosztoczy, Thomas Rosztoczy, Robert Rosztoczy, Stefi McGeorge, Edward Rosztoczy, and Thomas Thompson as trustees. The foundation’s website identifies Wendy Cooper as administrator.
Rosztoczy Foundation's 2025 filing lists 6 officers; none of the 6 officers listed in 2025 report compensation.
Officers on the 2025 filing
Diane Rosztoczy
Trustee
On filings since 2021
3 hrs/week
No compensation reported
Robert Rosztoczy
Trustee
On filings since 2021
3 hrs/week
No compensation reported
Thomas Rosztoczy
Trustee
On filings since 2021
3 hrs/week
No compensation reported
Edward Rosztoczy
Trustee
On filings since 2023
3 hrs/week
No compensation reported
Stefi McGeorge
Trustee
On filings since 2023
3 hrs/week
No compensation reported
Thomas Thompson
Trustee
On filings since 2023
3 hrs/week
No compensation reported
Data from IRS Form 990 filings, 2021–2025. "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 Rosztoczy Foundation
How much does Rosztoczy Foundation give each year?
Rosztoczy Foundation gave $680K across 30 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $795K across 44 grants.
What is Rosztoczy Foundation's typical grant size?
Rosztoczy Foundation's median grant in 2025 was $15,000, and its average grant was $22,667, across 30 grants on its 2025 IRS Form 990-PF.
Where does Rosztoczy Foundation give grants?
Rosztoczy Foundation gives mostly in Arizona: 61% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were New York (11%) and Massachusetts (6%). The most frequent recipient cities were Phoenix, AZ (4 grants).
Does Rosztoczy Foundation give general operating support?
Not in 2025: none of the 30 grants with a stated purpose on Rosztoczy Foundation's 2025 IRS Form 990-PF were described as general or operating support. Recurring purposes include "Scholarship College Promise Program" (4 grants) and "Donation" (4 grants).
Who are Rosztoczy Foundation's largest grantees?
Rosztoczy Foundation's largest 2025 grantees include E3 Africa ($100,000), Grand Canyon University ($76,900) and Northern AZ University ($64,500), according to its 2025 IRS Form 990-PF. It also paid 19 individual scholarships ($246,000), which are not listed by name. Together they received 35% of its itemized 2025 grant dollars.
How large is Rosztoczy Foundation?
Rosztoczy Foundation reported $15.6M in total assets on its 2025 IRS Form 990-PF. It paid out $677K in qualifying distributions that year, against a required minimum of $647K (roughly 5% of its investment assets).
What does Rosztoczy Foundation fund?
The foundation’s website uses “Providing Opportunities” to describe its work. Its stated programs focus on educational scholarships and college access. See mission & focus areas ↑
How do I apply for a grant from Rosztoczy Foundation?
The filing lists applications and recommendations by email or mail and identifies Diane Rosztoczy as the contact. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Rosztoczy Foundation's EIN?
Rosztoczy Foundation's EIN (Employer Identification Number) is 72-1583507. IRS Form 990 filing data is available on this page for 2021–2025.
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated October 2026.
Data update history
(1)
When this profile's IRS filing data changed on Grantable
- IRS filings on file for fiscal years 2021–2025
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Cite this profile
Grantable. (2026). Rosztoczy Foundation funder profile. GrantGraph. Retrieved October 16, 2026, from https://grantable.co/funders/rosztoczy-foundation-morg_d96680e076f34260b7547e690ba0db6a
BibTeX
@misc{grantable_721583507_2026,
author = {{Grantable}},
title = {{Rosztoczy Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/rosztoczy-foundation-morg_d96680e076f34260b7547e690ba0db6a},
note = {Accessed 2026-10-16. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from Rosztoczy Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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