The Greathouse Family Foundation
The Greathouse Family Foundation is a private foundation based in Los Altos, California. Its 2025 grants supported medical and other research, education resources, a physician residency program, community and emergency assistance, and other charitable activities.
Key facts about The Greathouse Family Foundation
In short: The Greathouse Family Foundation gave $821K across 24 grants in 2025 (avg $34K), mostly in California. 82% of 2025 grantees were new. Source: 2025 IRS Form 990-PF.
- EIN
- 47-2508106
- Latest 990 filing
- Form 990-PF, 2025
- Annual giving (2025)
- $820,645
- Grants made (2025)
- 24
- Average grant
- $34,194
- Median grant
- $10,250
- New grantees (estimate)
- 82% first-time grantees (18 of 22, 2025; small sample)
- Total assets
- $19,200,654
- Primary geography
- California (73% of itemized 2025 grant dollars)
- Accepts unsolicited proposals
- No
- How to apply
- The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests. Full details ↓
Data from IRS Form 990-PF, 2025; updated October 2026. New grantees are estimated by matching recipient names across years (methodology). Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Financial Overview
From 2025 IRS Form 990-PF · View filing
Total Assets
$19.2M
+16.4% YoY
Annual Giving
$821K
+31.2% YoY
Grant Count
24
+20.0% YoY
Avg Grant Size
$34K
+9.4% YoY
Is The Greathouse Family Foundation open to new grantees?
82%
first-time grantees, 2025
In 2025, 18 of 22 grantees (82%) were first-time recipients. With only 22 grantees, that is a small sample: one grantee more or less moves the share by about 5 points. First grants averaged $34K; repeat grants $41K. How we count
Medians: $15K first-time, $5K repeat.
Estimate from itemized grant lists in IRS Form 990-PF filings (2019–2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Mission & Focus Areas
The foundation’s filing describes its charitable activity as administering and investing funds for charitable purposes, but does not specify a more particular mission.
Its 2025 grants included support for acoustic neuroma, NF1, artificial organ transplant, cardiovascular disease and cancer, and small cell lung cancer research. Other listed purposes included education resources for first-generation students, support for a physician residency program, assistance for Pasadena fire victims, and an annual volunteer program.
Among its grantees, Pasadena Community Foundation says it builds and preserves endowed charitable funds and provides grants and assistance to strengthen community organizations. World Central Kitchen describes its work as providing meals in response to humanitarian, climate, and community crises. Women’s Money Matters says it empowers low-income women through financial literacy programs combining individual coaching and workshops. The Los Angeles Fire Department Foundation says it maintains the department’s historical society museum and educates the public about the department’s history.
Grantmaking
In filing year 2025, the foundation reported 24 grants totaling $820,645. Grant amounts ranged from $2,500 to $150,000, with a median of $10,250.
Notable 2025 grants included $150,000 to Acoustic Neuroma Association for medical research on acoustic neuroma; $137,500 to Lucille Packard Dr Campen for NF1 research; $100,000 to Stanford University Dr Ashley for artificial organ transplant research; and $87,500 to Stanford University Dr Leeper for research on cardiovascular disease and its relation to cancer. Other grants included $50,000 to Stanford University Shoup Fund for small cell lung cancer research, $50,000 to Sutter Residency Program for physician residency program support, and $40,000 each to World Central Kitchen and Pasadena Community Foundation. The filing also lists a $50,000 grant to an individual recipient in California for education resources for first-generation students.
How to Apply
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests.
Ready to take the next step with The Greathouse Family Foundation?
Geographic Focus
Where this funder awards grants
The foundation’s 2025 grant dollars went to recipients in California (73%), Georgia (18%), Washington, DC (5%), Massachusetts (4%), and New York (1%). The reported shares total 101%, reflecting the figures as listed.
Grant Distribution by State
Share of 2025 grant dollars across all 24 itemized grants.
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $304K (2019) to $821K (2025). In 2025 it made 24 grants totaling $821K.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Acoustic Neuroma Assn ($150K). Together the top 10 received $700K.
Organizations only. It also paid 2 grants to individuals ($60,000), which are not listed by name.
Grant Size Distribution
94 grants across all recorded years
The most common grant size was under $50K: 66 grants of 94 (70%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Acoustic Neuroma Assn Alpharetta, GA | Medical Research for Acoustic Neuroma | $150,000 |
| Lucille Packard Dr Campen Palo Alto, CA | NF1 Research | $137,500 |
| Stanford Univ Dr Ashley Palo Alto, CA | Research Artificial Organ Transplants | $100,000 |
| Stanford Univ Dr Leeper Palo Alto, CA | CVD and Relation to Cancer--Research | $87,500 |
| Stanford Univ Shoup Fund Stanford, CA | Research Small Cell Lung Cancer | $50,000 |
| 2 grants to individuals Recipients not named | — | $60,000 |
| Sutter Residency Program Sacramento, CA | Support for Physican Residency Program | $50,000 |
| World Central Kitchen Washington, DC | Help bring christmas to families going through temporary hardship | $40,000 |
| Pasadena Community Foundation Pasadena, CA | Support for Pasadena Fire Victims | $40,000 |
| Women's Money Matters Boston, MA | Providing financial, mentor, education services for underserved women and girls | $25,000 |
Financial History
Multi-year comparison from IRS filings
| Filing year | Assets | Revenue | Expenses | Grants | Grant count |
|---|---|---|---|---|---|
| 2025 | $19,200,654 | $1,240,665 | $1,025,236 | $820,645 | 24 |
| 2024 | $16,488,865 | $1,237,993 | $787,925 | $625,370 | 20 |
| 2023 | $13,530,656 | $1,401,534 | $831,495 | $659,000 | 16 |
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $19,200,654 | $16,488,865 | $13,530,656 |
| Revenue | $1,240,665 | $1,237,993 | $1,401,534 |
| Expenses | $1,025,236 | $787,925 | $831,495 |
| Qualifying Distributions | $939,390 | $753,933 | $773,200 |
| Net Investment Income | $527,637 | $414,856 | $334,417 |
Data update history
When this profile's IRS filing data changed on Grantable
- Updated Form 990-PF for fiscal year 2019 (received by the IRS September 1, 2020)
- Updated Form 990-PF for fiscal year 2020 (received by the IRS November 11, 2021)
- Updated Form 990-PF for fiscal year 2021 (received by the IRS November 15, 2022)
- Updated Form 990-PF for fiscal year 2022 (received by the IRS November 14, 2023)
- Updated Form 990-PF for fiscal year 2023 (received by the IRS November 15, 2024)
- Updated Form 990-PF for fiscal year 2024 (received by the IRS November 14, 2025)
- Added Form 990-PF for fiscal year 2025 (received by the IRS June 1, 2026)
- IRS filings on file for fiscal years 2019–2024
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Susan Greathouse as president, Kenneth Greathouse as secretary/trustee, and Jeff Greathouse as executive director.
The Greathouse Family Foundation is led by Jeff Greathouse, Executive Director on every filing since 2019; 1 of 3 officers listed in 2025 is compensated.
Officers on the 2025 filing
Jeff Greathouse
Executive Director
On filings since 2019
20 hrs/week
$81K (2019) → $119K (2025)
Susan Greathouse
President
On filings since 2019
10 hrs/week
No compensation reported
Kenneth Greathouse
Secretary & Trustee
On filings since 2019
2 hrs/week
No compensation reported
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.
Compensation Overview
From 2025 IRS filing
The highest reported compensation on the 2025 filing was $119K, to Jeff Greathouse (Exec Director).
Contact
Mailing address: 809 Arroyo Road, Los Altos, CA 94024
Phone: (650) 964-0407
Frequently asked questions about The Greathouse Family Foundation
How much does The Greathouse Family Foundation give each year?
The Greathouse Family Foundation gave $821K across 24 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $625K across 20 grants.
What is The Greathouse Family Foundation's typical grant size?
The Greathouse Family Foundation's median grant in 2025 was $10,250, and its average grant was $34,194, across 24 grants on its 2025 IRS Form 990-PF. Organizations receiving their first grant from The Greathouse Family Foundation that year got $34K on average.
Where does The Greathouse Family Foundation give grants?
The Greathouse Family Foundation gives mostly in California: 73% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest state was Georgia (18%). The most frequent recipient cities were Palo Alto, CA (4 grants), Sacramento, CA (2 grants), Los Altos, CA (2 grants) and Roseville, CA (2 grants).
Does The Greathouse Family Foundation give general operating support?
Occasionally: 4% of The Greathouse Family Foundation's 2025 grants with a stated purpose (1 of 24) were for general or operating support, per its 2025 IRS Form 990-PF. Recurring purposes include "Support of Ongoing Programs" (6 grants).
Who are The Greathouse Family Foundation's largest grantees?
The Greathouse Family Foundation's largest 2025 grantees include Acoustic Neuroma Assn ($150,000), Lucille Packard Dr Campen ($137,500) and Stanford Univ Dr Ashley ($100,000), according to its 2025 IRS Form 990-PF. It also paid 2 grants to individuals ($60,000), which are not listed by name. Together they received 47% of its itemized 2025 grant dollars.
How large is The Greathouse Family Foundation?
The Greathouse Family Foundation reported $19.2M in total assets on its 2025 IRS Form 990-PF. Its revenue that year was $1.2M.
What does The Greathouse Family Foundation fund?
The foundation’s filing describes its charitable activity as administering and investing funds for charitable purposes, but does not specify a more particular mission. See mission & focus areas ↑
How do I apply for a grant from The Greathouse Family Foundation?
The foundation makes contributions only to preselected charitable organizations and does not accept unsolicited requests. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is The Greathouse Family Foundation's EIN?
The Greathouse Family Foundation's EIN (Employer Identification Number) is 47-2508106. IRS Form 990 filing data is available on this page for 2019–2025.
Does The Greathouse Family Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated October 2026.
Here's the math on researching The Greathouse Family Foundation by hand.
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