The Vadasz Family Foundation
The Vadasz Family Foundation is a private foundation established in 1997 and based in Sonoma, California. It operates as a 501(c)(3) organization dedicated to supporting educational institutions, healthcare facilities, and community organizations across multiple states.
Key facts about The Vadasz Family Foundation
- EIN
- 77-0469457
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $1,588,393
- Grants made (2025)
- 54
- Average grant
- $29,415
- Median grant
- $10,000
- New grantees (estimate)
- 6% first-time grantees (2 of 36, 2025)
- Primary geography
- California (100% of itemized 2025 grant dollars)
Data from IRS Form 990-PF, 2025; updated September 2026. New grantees are estimated by matching recipient names across years (methodology).
Who The Vadasz Family Foundation funds
By grant dollars, the top recipient states for The Vadasz Family Foundation's 54 itemized 2025 grants were California (100%). The most frequent recipient cities were Sonoma, CA (32 grants), San Francisco, CA (8 grants), Glen Ellen, CA (3 grants) and San Jose, CA (2 grants). 72% of grants with a stated purpose were for general or operating support. Recurring purposes include "Fundraising Support" (3 grants) and "JLPP Education Support" (3 grants).
Is The Vadasz Family Foundation open to new grantees?
6%
first-time grantees, 2025
In 2025, 2 of 36 grantees (6%) were first-time recipients. First grants averaged $80K; repeat grants $42K. How we count
Medians: $80K first-time, $17K repeat.
Estimate from itemized IRS Form 990-PF grant lists (2019–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Next steps with The Vadasz Family Foundation
- How to evaluate The Vadasz Family Foundation as a funder
Our grant prospecting guide: read the 990-PF, check fit, and decide whether to apply.
- Draft an LOI to The Vadasz Family Foundation with AI
AI grant writing that drafts from your organization’s own materials, in your voice.
- Track this opportunity in a free grant tracker
A free Google Sheets or Excel template for deadlines, award terms, and reports due.
Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
—
Annual Giving
$1.6M
+4.3% YoY
Grant Count
54
-16.9% YoY
Avg Grant Size
$29K
+25.5% YoY
Mission & Focus Areas
The foundation's giving priorities focus primarily on:
- Higher education and educational foundations
- Health care, including medical centers
- Social and cultural community needs
- Journalism and creative writing
- Historic preservation
Grantmaking
Grant Range
s & Activity:**
Ready to take the next step with The Vadasz Family Foundation?
Geographic Focus
Where this funder awards grants
The foundation primarily funds organizations in California, New York, and Pennsylvania, with a notable concentration of activity in the Sonoma Valley region.
Grant Distribution by State
Share of all 54 itemized 2025 grant dollars.
Cities
Financial History
Multi-year comparison from IRS filings
As of November 2023:
- Total assets: $11,630,786
- Total annual giving: $1,523,317
- Total revenues: $685,519
- Total expenses: $1,768,880
- Investment income and dividends: $245,887
- Net gain from sale of non-inventory assets: $439,632
Staff: The foundation operates with no employees.
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | — | — | — |
| Revenue | — | — | — |
| Expenses | — | — | — |
| Qualifying Distributions | — | — | — |
| Net Investment Income | — | — | — |
| Distributable Amount | — | — | — |
Data update history
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2019 (received by the IRS February 25, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS March 5, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS April 13, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS April 13, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS August 13, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS July 17, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS May 1, 2026)
- IRS filings on file for fiscal years 2020–2024
Giving Over Time
Total grant dollars and number of grants per year
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
Grant Size Distribution
238 grants across all recorded years
Giving History
Grant recipients and amounts by year
Among its reported 2025 grants, the largest recipients include Sonoma Valley Education Foundation ($297,000 across 5 grants), Sonoma Valley Hospital Foundation ($157,153 across 3 grants), Sonoma Family Meal ($150,000).
| Recipient | Purpose | Amount |
|---|---|---|
| Sonoma Valley Hospital Foundation Sonoma, CA | General Support | $150,000 |
| Sonoma Family Meal Petaluma, CA | General Support | $150,000 |
| Sonoma Valley Education Foundation Sonoma, CA | General Support | $143,000 |
| Transcendence Theatre Company Sonoma, CA | General Support | $132,000 |
| Sonoma Valley Education Foundation Sonoma, CA | General Support | $120,000 |
| Boys and Girls Club of Sonoma Valle Sonoma, CA | Support for Teen Services | $100,000 |
| Sonoma Valley Mentoring Alliance Sonoma, CA | General Support | $70,000 |
| Redwood Empire Food Bank Santa Rosa, CA | General Support | $50,000 |
| Jack London Park Partners Glen Ellen, CA | JLPP Education Support | $50,000 |
| Planned Parenthood Mar Monte San Jose, CA | Education Program Support | $50,000 |
Leadership & Key People
Leadership team and compensation from IRS filings
The foundation is led by trustees:
- Les L Vadasz
- Judy K Vadasz
- Jeffrey E Vadasz
Compensation Overview
From 2025 IRS filing
From 2025 IRS filing
| Name | Title | Hours | Compensation |
|---|---|---|---|
| Les L Vadasz | Dir./Pres. | 1 | — |
| Judy K Vadasz | Dir./Treas. | 1 | — |
| David Vadasz | Director | 1 | — |
| Meghan O Banyon | Foundation Mgr. | 24 | $145,000 |
Recent News & Activity
Recent developments and announcements
The foundation has made significant commitments to local institutions, including a $2 million challenge grant to Sonoma Valley Hospital. The foundation has also demonstrated support for higher education through major investments, including an $8 million investment in McGill University's engineering programs.
Vadasz Family Fund Gives $2 Million Challenge Grant to HospitalSubject Areas
Focus areas based on grantmaking activity
Frequently Asked Questions
What does The Vadasz Family Foundation fund?
The foundation's giving priorities focus primarily on: • Higher education and educational foundations • Health care, including medical centers • Social and cultural community needs • Journalism and creative writing • Historic preservation
How do I apply for a grant from The Vadasz Family Foundation?
**Grant Sizes & Activity:** • Typical grant awards range from $104,000 to $175,000 • The foundation made 49 grants in 2023, totaling $1,523,317 in annual giving • Recent notable grants include: • $175,000 to KQED (General Support) • $140,000 to Sonoma Valley Education Foundation (General Support) • $140,000 to Sonoma Overnight Support (Food Program and Renovation Support)
Where does The Vadasz Family Foundation make grants?
The foundation primarily funds organizations in California, New York, and Pennsylvania, with a notable concentration of activity in the Sonoma Valley region.
What size grants does The Vadasz Family Foundation award?
In 2025, The Vadasz Family Foundation awarded 54 grants totaling $1.6M — an average of about $29K per grant, based on its IRS Form 990 filings.
What is The Vadasz Family Foundation's EIN?
The Vadasz Family Foundation's EIN (Employer Identification Number) is 77-0469457. IRS Form 990 filing data is available on this page for 2019–2025.
Explore Open Grants
Browse active grant opportunities in The Vadasz Family Foundation's focus areas in our free grants database
Similar Funders
Funders that support many of the same organizations
Sonoma County Community Foundation
Santa Rosa, CA
Assets
$231.0M
Grants
304
Total Given
$19.9M
Marin Community Foundation
Novato, CA
Assets
$1.3B
Grants
1,573
Total Given
$186.1M
McNabb Foundation
Wilmington, DE
Assets
$4.8M
Grants
328
Total Given
$358K
Jewish Community Federation of San
San Francisco, CA
Assets
$2.0B
Grants
991
Total Given
$123.7M
Manitou Fund
White Bear Lake, MN
Assets
—
Grants
164
Total Given
$20.1M
Silicon Valley Community Foundation
Mountain View, CA
Assets
$12.3B
Grants
3,576
Total Given
$3.2B
California Community Foundation
Los Angeles, CA
Assets
$2.3B
Grants
2,174
Total Given
$326.6M
Tides Foundation
San Francisco, CA
Assets
$534.5M
Grants
2,110
Total Given
$382.1M
The William & Flora Hewlett Foundation
Menlo Park, CA
Assets
$14.2B
Grants
2,001
Total Given
$625.0M
Sempra Foundation
San Diego, CA
Assets
$11.5M
Grants
1,501
Total Given
$1.8M
Conrad N Hilton Foundation
Westlake Village, CA
Assets
$7.4B
Grants
1,339
Total Given
$287.7M
Chamberlin Education Foundation
Richmond, CA
Assets
$80.6M
Grants
1,302
Total Given
$3.0M
More Funders in California
Data last updated September 2026. Sourced from IRS Form 990-PF filings. Research dossier generated April 2026.