Si Robin Foundation
The Si Robin Foundation is a private foundation based in Woodland Hills, California. It says it is carrying on Si Robin’s legacy by helping “mold the future of aviation,” and its 2025 grants include support for aviation museums, aviation education, and medical transportation.
Si Robin Foundation at a glance
In short: Si Robin Foundation gave $2.5M across 28 grants in 2025 (avg $89K), top state Hawaii. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $2,494,222
- -25.2% vs 2024
- Grants made (2025)
- 28
- +3.7% vs 2024
- Average grant
- $89,079
- -27.8% vs 2024
- Median grant
- $51,695
- Total assets
- $1,827,817
- -21.7% vs 2024
- Primary geography
- Hawaii (43% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated September 2026.
How to apply to Si Robin Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation does not accept unsolicited requests. It states that it makes contributions only to preselected charitable organizations.
- Contact
Mailing address: 6009 Little Oak Lane, Woodland Hills, CA 91367
Phone: (818) 737-1090
Website: https://sirobinfoundation.org
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who Si Robin Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Pearl Harbor Aviation Museum ($1.1M across 5 grants). Together the top 10 received $2.1M.
Grant Size Distribution
87 grants across all recorded years
The most common grant size was under $50K: 44 grants of 87 (51%).
Geographic Focus
Where this funder awards grants
In 2025, the largest shares of grant dollars went to recipients in Hawaii (43%) and California (37%). Other listed shares were North Dakota (6%), Tennessee (4%), and Washington (3%).
Grant Distribution by State
Share of 2025 grant dollars across all 28 itemized grants.
States
Cities
How Si Robin Foundation gives
- 83% of 2025 grantees were also funded in 2024. Method
- Giving grew 128% from 2022 to 2025. Method
- In 2025 it paid out well above its IRS minimum distribution (the 5% rule). Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $130K (2021) to $3.3M (2024). In 2025 it made 28 grants totaling $2.5M.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Pearl Harbor Aviation Museum Honolulu, HI | MUSEUM | $688,488 |
| Palm Springs Air Museum Inc Palm Springs, CA | MUSEUM | $255,600 |
| Pearl Harbor Aviation Museum Honolulu, HI | MUSEUM | $164,240 |
| San Diego Air and Space Museum San Diego, CA | MUSEUM | $150,000 |
| UND Aerospace Foundation Grand Forks, ND | General Operating Support | $142,000 |
| Pearl Harbor Aviation Museum Honolulu, HI | MUSEUM | $117,382 |
| Bob Hoover Academy Salinas, CA | Teaching | $100,000 |
| St Jude Children's Research Hospita Memphis, TN | Medical Research | $92,591 |
| Angel Flight West Santa Monica, CA | Medical Transportation | $85,835 |
| Museum of Flight Foundation Seattle, WA | MUSEUM | $74,010 |
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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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $1,827,817 | $1,997,778 | $2,505,655 | $2,494,222 | 28 | $2,494,222 | $176,993 | $149,976 |
| 2024 | $2,335,694 | $345,581 | $3,345,657 | $3,333,171 | 27 | $3,333,171 | $340,006 | $309,985 |
| 2023 | $5,335,763 | $200,970 | $1,797,778 | $1,795,508 | 23 | $1,795,508 | $200,970 | $323,838 |
| 2022 | $6,932,571 | $1,939,095 | $1,095,848 | $1,095,000 | 4 | $1,095,000 | $156,075 | $263,567 |
| 2021 | $2,898,298 | $2,059,882 | $130,000 | $130,000 | 5 | $130,000 | $238,176 | — |
| 2020 | $968,416 | $22,273 | $300,000 | $300,000 | 6 | — | $56,602 | $126,982 |
| 2019 | $1,155,720 | $78,349 | $1,249,000 | $1,249,000 | 13 | — | $636,254 | — |
Under IRS private-foundation payout rules, Si Robin Foundation reported a distributable amount of $150K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The foundation’s stated mission is to carry on Si Robin’s legacy by helping mold the future of aviation. Its listed impact includes aviation museums, scholarships, flight training, and aircraft mechanic education. Its 2025 grants also included medical research and medical transportation.
Grantees describe a range of related work. Pearl Harbor Aviation Museum says it stewards America’s first aviation battlefield of World War II and educates and inspires future generations. Palm Springs Air Museum says it educates the public about aircraft and artifacts from World War II, Korea, and Vietnam. UND Aerospace Foundation says it supports the functions and purposes of the John D. Odegard School of Aerospace Sciences at the University of North Dakota. Bob Hoover Academy says it provides youth with educational programs and flight training, while Angel Flight West says it arranges free air transportation for people with health-care and other compelling needs.
Grantmaking
In 2025, the foundation made 28 grants totaling $2,494,222. Grant amounts ranged from $10,000 to $688,488, with a median of $51,695. Among the largest were $688,488 to Pearl Harbor Aviation Museum, $255,600 to Palm Springs Air Museum, $150,000 to San Diego Air and Space Museum, $142,000 to UND Aerospace Foundation, and $100,000 to Bob Hoover Academy. The 2025 filing lists purposes including museum support, general operating support, teaching, medical research, and medical transportation.
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Seymour Robin as President, Lori Vreeke as Secretary, Jeffrey Robin as Vice President, and James Vreeke as CEO. The foundation’s website lists Si Robin as President, Lori Vreeke as Executive Director, Jim Vreeke as Chief Financial Officer, and Jeff Robin as Vice President.
Si Robin Foundation is led by James Vreeke, CEO on every filing since 2022; none of the 4 officers listed in 2025 report compensation.
Officers on the 2025 filing
James Vreeke
CEO
On filings since 2022
1 hr/week
No compensation reported
Seymour Robin
President
Director & President → President, 2022
On filings since 2019
2 hrs/week
No compensation reported
Lori Vreeke
Secretary
Director & Secretary → Secretary, 2022
On filings since 2019
10 hrs/week
No compensation reported
Jeffrey Robin
Vice President
On filings since 2023
2 hrs/week
No compensation reported
Former officers (1)
- Former: Peter Richards (2019–2022) — Vice President
Data from IRS Form 990 filings, 2019–2025. "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 Si Robin Foundation
How much does Si Robin Foundation give each year?
Si Robin Foundation gave $2.5M across 28 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $3.3M across 27 grants.
What is Si Robin Foundation's typical grant size?
Si Robin Foundation's median grant in 2025 was $51,695, and its average grant was $89,079, across 28 grants on its 2025 IRS Form 990-PF.
Where does Si Robin Foundation give grants?
Si Robin Foundation's top state is Hawaii, with 43% of the grant dollars itemized on its 2025 IRS Form 990-PF. The next largest states were California (37%) and North Dakota (6%). The most frequent recipient cities were Honolulu, HI (5 grants), Grand Forks, ND (2 grants) and El Segundo, CA (2 grants).
Does Si Robin Foundation give general operating support?
Yes: 32% of Si Robin Foundation's 2025 grants with a stated purpose (9 of 28) were for general or operating support, per its 2025 IRS Form 990-PF. Recurring purposes include "Museum" (12 grants).
Who are Si Robin Foundation's largest grantees?
Si Robin Foundation's largest 2025 grantees include Pearl Harbor Aviation Museum ($1,070,096 across 5 grants), Palm Springs Air Museum Inc ($255,600) and UND Aerospace Foundation ($162,000 across 2 grants), according to its 2025 IRS Form 990-PF. Together they received 60% of its itemized 2025 grant dollars.
How large is Si Robin Foundation?
Si Robin Foundation reported $1.8M in total assets on its 2025 IRS Form 990-PF. It paid out $2.5M in qualifying distributions that year, against a required minimum of $150K (roughly 5% of its investment assets).
What does Si Robin Foundation fund?
The foundation’s stated mission is to carry on Si Robin’s legacy by helping mold the future of aviation. Its listed impact includes aviation museums, scholarships, flight training, and aircraft mechanic education. Its 2025 grants also included medical research and medical transportation. See mission & focus areas ↑
How do I apply for a grant from Si Robin Foundation?
The foundation does not accept unsolicited requests. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is Si Robin Foundation's EIN?
Si Robin Foundation's EIN (Employer Identification Number) is 81-2673844. IRS Form 990 filing data is available on this page for 2019–2025.
Does Si Robin Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated September 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(7)
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 14, 2025)
- Updated Form 990-PF for fiscal year 2025 (received by the IRS May 20, 2026)
- Added Form 990-PF for fiscal year 2019 (received by the IRS June 26, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS November 9, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS July 11, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS October 2, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS April 15, 2024)
Live grants for the work Si Robin Foundation funds
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Cite this profile
Grantable. (2026). Si Robin Foundation funder profile. GrantGraph. Retrieved October 17, 2026, from https://grantable.co/funders/si-robin-foundation-morg_9023528d46254863aa50ae3f7285ba49
BibTeX
@misc{grantable_812673844_2026,
author = {{Grantable}},
title = {{Si Robin Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/si-robin-foundation-morg_9023528d46254863aa50ae3f7285ba49},
note = {Accessed 2026-10-17. 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 Si Robin 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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