Xenon Foundation
Xenon Foundation is a private foundation, based in Warren, VT. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $96K in total assets. In 2025, it awarded 7 grants totaling $12K.
Key facts about Xenon Foundation
In short: Xenon Foundation gave $12K across 7 grants in 2025 (avg $2K), mostly in Massachusetts. Source: 2025 IRS Form 990-PF.
- EIN
- 06-6438901
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $12,341
- Grants made (2025)
- 7
- Average grant
- $1,763
- Median grant
- $500
- Total assets
- $96,208
- Primary geography
- Massachusetts (84% of itemized 2025 grant dollars)
Data from IRS Form 990-PF, 2025; updated September 2026.
Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
$96K
+15.5% YoY
Annual Giving
$12K
+408.9% YoY
Grant Count
7
-22.2% YoY
Avg Grant Size
$2K
+554.3% YoY
Under IRS private-foundation payout rules, Xenon Foundation reported a distributable amount of $2K for 2025 — the minimum it must pay out in qualifying distributions.
How Xenon Foundation gives
- Giving grew 219% from 2022 to 2025. Method
- In 2025 it paid out 557% of its IRS minimum distribution (the 5% rule). Method
From the foundation's IRS Form 990-PF filings. Methodology.
Ready to take the next step with Xenon Foundation?
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 7 itemized grants.
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2025, annual grant giving ranged from $2K (2024) to $12K (2025). In 2025 it made 7 grants totaling $12K.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 7 recipients in 2025
The largest 2025 recipient was Massachusetts Institute of Technology ($6K). Together the top 7 received $12K.
Grant Size Distribution
33 grants across all recorded years
The most common grant size was under $50K: 33 grants of 33 (100%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Massachusetts Institute of Technology Cambridge, MA | Unrestricted | $5,596 |
| Simmons University Boston, MA | Unrestricted | $4,750 |
| Yale University New Haven, CT | Unrestricted | $1,000 |
| Mad River Path Association Waitsfield, VT | Unrestricted | $500 |
| Stowe Performing Arts Stowe, VT | Unrestricted | $215 |
| Mad River Valley Arts Association Waitsfield, VT | Unrestricted | $180 |
| Vermont Public Radio Colchester, VT | Unrestricted | $100 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $96,208 | $83,304 | $92,287 |
| Revenue | $51,045 | $803 | $-5,938 |
| Expenses | $24,546 | $5,889 | $6,982 |
| Qualifying Distributions | $12,341 | $2,425 | $3,933 |
| Distributable Amount | $2,216 | $599 | $1,086 |
Data update history
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2021 (received by the IRS November 12, 2021)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS May 10, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS May 13, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS May 8, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 11, 2026)
- IRS filings on file for fiscal years 2021–2024
Leadership & Key People
Officers and directors from IRS filings
Xenon Foundation's only listed officer is Barry Bronfin And Cecile Bronfin, Trustees on every filing since 2021 (uncompensated).
Officers on the 2025 filing
Barry Bronfin And Cecile Bronfin
Trustees
On filings since 2021
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 Xenon Foundation
How much does Xenon Foundation give each year?
Xenon Foundation gave $12K across 7 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $2K across 9 grants.
What is Xenon Foundation's typical grant size?
Xenon Foundation's median grant in 2025 was $500, and its average grant was $1,763, across 7 grants on its 2025 IRS Form 990-PF.
Where does Xenon Foundation give grants?
Xenon Foundation gives mostly in Massachusetts: 84% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were Connecticut (8%) and Vermont (8%). The most frequent recipient cities were Waitsfield, VT (2 grants).
Does Xenon Foundation give general operating support?
Yes: 100% of Xenon Foundation's 2025 grants with a stated purpose (7 of 7) were for general or operating support, per its 2025 IRS Form 990-PF.
Who are Xenon Foundation's largest grantees?
Xenon Foundation's largest 2025 grantees include Massachusetts Institute of Technology ($5,596), Simmons University ($4,750) and Yale University ($1,000), according to its 2025 IRS Form 990-PF. Together they received 92% of its itemized 2025 grant dollars.
How large is Xenon Foundation?
Xenon Foundation reported $96K in total assets on its 2025 IRS Form 990-PF. It paid out $12K in qualifying distributions that year, against a required minimum of $2K (roughly 5% of its investment assets).
What is Xenon Foundation's EIN?
Xenon Foundation's EIN (Employer Identification Number) is 06-6438901. IRS Form 990 filing data is available on this page for 2021–2025.
Data last updated September 2026. Sourced from IRS Form 990-PF filings.
Here's the math on researching Xenon Foundation by hand.
Explore Open Grants
Browse active grant opportunities in Xenon Foundation's focus areas in our free grants database
Similar Funders
Funders that support many of the same organizations
Freedom Together Foundation
New York, NY
The foundation funds work to strengthen multiracial democracy and build community and worker power, racial and gender justice, movement infrastructure, reproductive health, medical research, and community institutions. In 2024, its grants ranged from $5,000 to $14 million, with a median of $500,000; its largest shares went to organizations in Washington, DC, New York, California, Massachusetts, and Illinois. It funds only preselected organizations and does not accept unsolicited requests.
Assets
$3.4B
Grants
595
Total Given
$470.0M
Universities Research Association Inc
Washington, DC
Universities Research Association supports research, education, and STEM workforce development, with its 2025 institutional grants primarily designated for research. Its 21 grants ranged from $5,059 to $39,243, with a median of $15,176, and went to organizations in multiple states; no geographic preference is stated. The profile does not say whether it accepts unsolicited requests.
Assets
$23.0M
Grants
21
Total Given
$361K
Ewing Marion Kauffman Foundation
Kansas City, MO
The foundation funds college access and completion, workforce and career development, entrepreneurship, and related efforts to improve economic mobility, with a primary focus on Kansas City and support for regional and national work. Its 2024 grants had a median of $75,000; it accepts requests through its online portal and says it does not limit giving to preselected organizations.
Assets
$2.5B
Grants
364
Total Given
$95.0M
Felicia M Delorenzo Scholarship
Boston, MA
The Felicia M. DeLorenzo Scholarship Foundation supports post-secondary education for high school graduates who live in Arlington, Massachusetts, with scholarships recognizing academic achievement, strong work ethic, and community commitment. In 2024, grants ranged from $1,500 to $63,125, with a median of $4,500; the Foundation does not accept unsolicited funding requests.
Assets
$4.6M
Grants
61
Total Given
$367K
Cystic Fibrosis Foundation
Bethesda, MD
The Cystic Fibrosis Foundation funds cystic fibrosis research, drug development, specialized care, and related training and clinical programs. In 2024, its grants had a median of about $150,000, with awards ranging from $2,800 to nearly $12.9 million; it supports work nationwide. Applications are submitted through specific funding opportunities, but the profile does not state whether unsolicited requests are accepted.
Assets
$5.0B
Grants
624
Total Given
$189.6M
Ernst & Young Foundation
New York, NY
Ernst & Young Foundation supports higher education through employee and partner matching gifts, as well as educational and special-project grants, including research, education forums, and programs that expand educational opportunity. In 2025, it made 637 grants ranging from $5,056 to $316,005, with a median of $13,525, to recipients across multiple states; the largest shares went to New York, Texas, California, Michigan, and Pennsylvania. The profile does not state whether it accepts unsolicited requests.
Assets
$47.6M
Grants
637
Total Given
$16.7M
President and Fellows of Harvard College
Cambridge, MA
Harvard’s grantmaking primarily supports research and education, including research awards and sub-awards to universities, hospitals, and research institutes. In 2025, it reported 352 grants ranging from $5,002 to $27.4 million, with a median of $123,018; recipients were concentrated in Massachusetts, which received 64% of grant dollars. The profile does not state whether Harvard accepts unsolicited requests.
Assets
$79.9B
Grants
352
Total Given
$273.3M
Society for Immunotherapy of Cancer Inc
Milwaukee, WI
To improve cancer patient outcomes by advancing the science, development and application of cancer immunology and immunotherapy through our core values of interaction/integration, innovation, translation, diversity and inclusion and leadership in the field. Sitc aims to make cancer immunotherapy a standard of care and the word "cure" a reality for cancer patients everywhere.
Assets
$21.9M
Grants
9
Total Given
$738K
Northwestern University
Evanston, IL
Northwestern University funds research and community organizations, along with selected programs in community health, transportation research, and investigative journalism. Its 2025 grants ranged from $5,000 to $7.7 million, with a median of about $73,000; grants went largely to U.S. recipients, especially in Illinois, and its ANCHOR program focuses on Evanston and Chicago. The profile does not state whether it accepts unsolicited requests.
Assets
$20.8B
Grants
383
Total Given
$133.4M
The Esther a & Joseph Klingenstein Fund Inc
New York, NY
The fund supports neuroscience research, early literacy, early childhood policy and advocacy, and nonprofit reporting, with 2025 grants ranging from $830 to $600,000 and a median of $150,000; its neuroscience fellowship offers up to $450,000 over three years. It gives nationally, with the largest shares of 2025 grant dollars going to New York, Washington, D.C., California, Massachusetts, and Pennsylvania. The fund gives only to preselected charitable organizations and does not accept unsolicited requests.
Assets
$348.1M
Grants
99
Total Given
$16.9M
The Susan G Komen Breast Cancer Foundation Inc
Dallas, TX
The Susan G. Komen Breast Cancer Foundation funds breast cancer research and programs supporting education, patient navigation, financial assistance, and access to care. Its 2025 grants ranged from $2,681 to $945,992, with a median of $158,660, and it funds work in the United States and 24 other countries. Research applications require an LOI, and full applications are by invitation; whether it accepts unsolicited requests is not stated.
Assets
$178.9M
Grants
61
Total Given
$16.1M
National Life Group Charitable
Montpelier, VT
National Life Group Charitable primarily funds programs addressing childhood hunger and children’s mental health, with secondary support for community development, especially in central and northern Vermont and the Dallas, Texas area. Its 2024 grants ranged from $20 to $125,000, with a median of $1,040. It accepts online grant applications from January 1 through March 31; sponsorship requests are accepted year-round beginning in January, subject to available funds.
Assets
$27.4M
Grants
757
Total Given
$2.7M
More Funders in Vermont
Xenon Foundation down — hundreds of funders to go?