Neuroscience research & education.
Key facts about Mayfield Education and Research Foundation
In short: Mayfield Education and Research Foundation gave $213K across 2 grants in 2025 (avg $106K), mostly in North Carolina. Source: 2025 IRS Form 990.
- EIN
- 31-0921099
- Latest 990 filing
- Form 990, 2025
- Annual giving (2025)
- $212,500
- Grants made (2025)
- 2
- Average grant
- $106,250
- Median grant
- $106,250
- Total assets
- $11,110,243
- Primary geography
- North Carolina (95% of itemized 2025 grant dollars)
Data from IRS Form 990, 2025; updated September 2026.
Financial Overview
From 2025 IRS Form 990 · View filing
Total Assets
$11.1M
+19.2% YoY
Annual Giving
$213K
+150.0% YoY
Grant Count
2
-33.3% YoY
Avg Grant Size
$106K
+275.0% YoY
How Mayfield Education and Research Foundation gives
- Giving grew 608% from 2022 to 2025. Method
From the foundation's IRS Form 990 filings. Methodology.
About Mayfield Education and Research Foundation
Based on IRS filings
Mayfield Education and Research Foundation is a public charity focused on Health, based in Cincinnati, OH. IRS filing data is available from 2019 through 2025. As of 2025, the organization holds $11.1M in total assets. In 2025, it awarded 2 grants totaling $213K. Net investment income was $174K.
Focus Areas
Ready to take the next step with Mayfield Education and Research Foundation?
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of all 2 itemized 2025 grant dollars.
Cities
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $6K (2019) to $213K (2025). In 2025 it made 2 grants totaling $213K.
Hatched bars: grants paid as reported on the IRS filing, which lists no individual grants for that year.
Grant Insights
How this funder distributes its grants
Top Recipients
Top 2 recipients in 2025
The largest 2025 recipient was UNC Health Foundation ($203K). Together the top 2 received $213K.
Grant Size Distribution
8 grants across all recorded years
The most common grant size was under $50K: 6 grants of 8 (75%).
Giving History
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| UNC Health Foundation Chapel Hill, NC | Brain Tumor Research | $202,500 |
| Cox Health Foundation Springfield, MO | Neurosurgery Clinic | $10,000 |
Financial History
Multi-year comparison from IRS filings
| Metric | 2025 | 2024 | 2023 |
|---|---|---|---|
| Total Assets | $11,110,243 | $9,319,272 | $6,428,572 |
| Revenue | $1,824,779 | $2,045,989 | $913,355 |
| Expenses | $1,519,563 | $1,010,844 | $990,433 |
| Net Investment Income | $174,219 | $147,752 | $42,511 |
Data update history
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2019 (received by the IRS August 17, 2020)
- Updated Form 990 for fiscal year 2020 (received by the IRS August 11, 2021)
- Updated Form 990 for fiscal year 2022 (received by the IRS August 15, 2023)
- Updated Form 990 for fiscal year 2023 (received by the IRS August 14, 2024)
- Updated Form 990 for fiscal year 2024 (received by the IRS August 15, 2025)
- Added Form 990 for fiscal year 2025 (received by the IRS August 24, 2026)
Leadership & Key People
Officers and directors from IRS filings
Mayfield Education and Research Foundation is led by William D. Tobler MD, Chairman since 2025 (on filings since 2019); 3 of 21 officers listed in 2025 are compensated.
Officers on the 2025 filing
William D. Tobler MD
Chairman
President → Chairman, 2025
On filings since 2019
4 hrs/week
$65K (2025)
Deborah Livingston
Development Director
New on the 2025 filing
40 hrs/week
$128K (2025)
Sonia Lipp
Director of Research
New on the 2025 filing
40 hrs/week
$145K (2025)
Andrew J. Ringer MD
Trustee
On filings since 2019
1 hr/week
No compensation reported
James J. McGraw Jr. Esq.
Trustee
On filings since 2019
1 hr/week
No compensation reported
Jeffrey T. Keller PhD
Trustee
On filings since 2019
1 hr/week
No compensation reported
Valerie Newell CPA
Trustee
On filings since 2019
1 hr/week
No compensation reported
Victor Dipilla
Trustee
On filings since 2019
1 hr/week
No compensation reported
Laura Guggenheim
Trustee
On filings since 2021
1 hr/week
No compensation reported
Vincent Dinapoli MD PhD
Trustee
On filings since 2021
1 hr/week
No compensation reported
Bryan Krueger MD
Trustee
On filings since 2022
1 hr/week
No compensation reported
Lauren R. Ostling MD
Trustee
On filings since 2022
1 hr/week
No compensation reported
Bradbury A. Skidmore MD
Trustee
On filings since 2023
1 hr/week
No compensation reported
James Horn MD
Trustee
On filings since 2023
1 hr/week
No compensation reported
Marla Santos Silliman
Trustee
On filings since 2023
1 hr/week
No compensation reported
Michael Stenger
Trustee
On filings since 2024
1 hr/week
No compensation reported
Amy Murray
Trustee
New on the 2025 filing
0.3 hrs/week
No compensation reported
Brian Gwyn
Trustee - Start & Exit
New on the 2025 filing
0.3 hrs/week
No compensation reported
Kevin Schuler
Trustee - Start
New on the 2025 filing
1 hr/week
No compensation reported
Michael J. Radomski
Treasurer
On filings since 2019
3 hrs/week
No compensation reported
Robert Rich Esq.
Secretary
On filings since 2019
1 hr/week
No compensation reported
Former officers (7)
- Former: Amy Murray Start (2024) — Trustee
- Former: Mike Stenger (2023) — Trustee
- Former: Brad Skidmore MD (2019–2022) — Trustee
- Former: Creighton Wright (2019–2021) — Trustee
- Former: George Mandybur MD (2019–2021) — Trustee
- Former: Liz Carter (2019–2020) — Trustee
- Former: Ronald Warnick MD (2019–2020) — Trustee
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 $145K, to Sonia Lipp (Director of Research). 3 officers or directors reported compensation on that filing.
Frequently asked questions about Mayfield Education and Research Foundation
How much does Mayfield Education and Research Foundation give each year?
Mayfield Education and Research Foundation gave $213K across 2 grants in 2025, according to its 2025 IRS Form 990. In 2024 it gave $85K across 3 grants.
How large is Mayfield Education and Research Foundation?
Mayfield Education and Research Foundation reported $11.1M in total assets on its 2025 IRS Form 990. Its revenue that year was $1.8M.
What is Mayfield Education and Research Foundation?
Mayfield Education and Research Foundation is a public charity focused on Health, based in Cincinnati, OH. It holds $11.1M in total assets as of 2025.
Where does Mayfield Education and Research Foundation operate?
Mayfield Education and Research Foundation has awarded grants in Minnesota, Missouri, North Carolina, New Jersey, New York, Ohio.
What is Mayfield Education and Research Foundation's EIN?
Mayfield Education and Research Foundation's EIN (Employer Identification Number) is 31-0921099. IRS Form 990 filing data is available on this page for 2019–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Here's the math on researching Mayfield Education and Research Foundation by hand.
Explore Open Grants
Browse active grant opportunities in Mayfield Education and Research Foundation's focus areas in our free grants database
Similar Funders
Funders that support many of the same organizations
John P & Kathryn G Evans Foundation
Indianola, WA
The John P & Kathryn G Evans Foundation’s recent grants include operating support for charitable organizations, but its 2025 filing reports just one $500 grant; giving totaled about $128,000–$137,000 in 2023 and 2024. Its grant dollars went to a Virginia recipient in 2025, and it accepts no unsolicited requests, contributing only to preselected organizations.
Assets
$922K
Grants
1
Total Given
$500
Duke Energy Foundation
Charlotte, NC
The Duke Energy Foundation funds workforce development, local economic development and recovery, disaster resilience, conservation, and economic opportunity in communities across North Carolina, South Carolina, Florida, Ohio, Kentucky, and Indiana. It reports more than $30 million in annual charitable grants; awards vary widely, with a 2024 median of $25,000, and applications of $20,000 or less are accepted on a rolling basis. Applicants should contact their local Foundation representative before applying.
Assets
$1.9M
Grants
41
Total Given
$25.6M
Ch Robinson Worldwide Foundation
Sioux Falls, SD
The C.H. Robinson Worldwide Foundation funds community needs, economic opportunity, supply-chain and logistics initiatives, and environmental sustainability, with Twin Cities grants also supporting hunger, shelter, K–12 education, and workforce development in Minneapolis–St. Paul. In 2024, grants ranged from $750 to $2.69 million, with a median of $5,000. Strategic Industry grants are invitation-only; Twin Cities organizations can apply online, and no general policy on unsolicited requests is stated.
Assets
$18.2M
Grants
87
Total Given
$4.0M
The Tito and Sandra Tiberti Foundation
Las Vegas, NV
The Tito and Sandra Tiberti Foundation funds arts, education, health, and public-policy organizations, with most of its giving in Nevada. In 2025, grants ranged from $1,000 to $63,500, with a median of $3,250. It gives only to preselected organizations and does not accept unsolicited requests.
Assets
$2.2M
Grants
46
Total Given
$341K
Equitrans Midstream Foundation
Canonsburg, PA
The Equitrans Midstream Foundation funded community development, education, and environmental work in communities where the company operated, including in West Virginia, Pennsylvania, and Virginia; recent grants ranged from $50,000 to $153,000 among the examples listed. It accepted requests only from preselected organizations, not unsolicited requests, and appears to have wound down after merging with EQT Foundation in 2025.
Assets
$12.9M
Grants
143
Total Given
$1.3M
Bristol-Myers Squibb Foundation Inc
Princeton, NJ
The Bristol-Myers Squibb Foundation supports health-access initiatives for disproportionately affected populations, including cancer, blood disorders, brain health, and clinical-trial participation, in the United States and internationally. In 2024, its median grant was $134,090, though awards varied widely; it says application materials are available upon request and advises organizations to contact it about the process, but does not state whether unsolicited requests are accepted.
Assets
$83.3M
Grants
144
Total Given
$67.7M
Crystal Family Foundation
Reno, NV
The Crystal Family Foundation supports organizations in education, health, and historical and cultural preservation, with recent grants concentrated in Arizona and also reaching Nevada and other states. Its 2024 grants ranged from $100 to $235,000, with a median of $2,500. It gives only to preselected charities and does not accept unsolicited requests.
Assets
$23.4M
Grants
76
Total Given
$878K
Vincent C and Pamela A Immordino
Henderson, NV
The foundation supports charitable organizations in areas including education, healthcare, human services, literacy, arts, and crisis response, with grants across Nevada and other states, especially Nevada, California, Minnesota, Arizona, and Idaho. Its 2025 grants ranged from $1,000 to $100,000, with a median of $10,000. It funds only preselected organizations and does not accept unsolicited requests.
Assets
$20.3M
Grants
84
Total Given
$1.3M
Communities of Coastal Georgia
Brunswick, GA
Communities of Coastal Georgia Foundation funds nonprofits working on a range of community needs, including education, housing, family support, youth programs, and conservation, primarily in Camden, Glynn, and McIntosh counties, Georgia. Its 2024 grants ranged from $5,056 to $1,075,320, with a median of $15,250; it offers a competitive grant program, but whether it accepts unsolicited requests is not stated.
Assets
$54.5M
Grants
121
Total Given
$5.4M
Triangle Community Foundation Inc
Durham, NC
The foundation supports nonprofits working in cultural arts, education and youth, nonprofit capacity building, and sustainable communities, with discretionary grants focused on Durham, Orange, Wake, and Chatham Counties in North Carolina. Its 2025 grants had a median of $20,000, though amounts varied widely. Eligible nonprofits or fiscally sponsored organizations can apply through its online system during open grant cycles, so requests are accepted when a relevant cycle is open.
Assets
$335.8M
Grants
599
Total Given
$26.7M
KLM Foundation
Los Angeles, CA
KLM Foundation supports schools, universities, community groups, and other charitable organizations, with most of its grant funding going to California. In 2024, it made 253 grants ranging from $250 to $1 million, with a median grant of $5,000. It gives only to preselected organizations and does not accept unsolicited requests.
Assets
$113.9M
Grants
253
Total Given
$5.1M
United Jewish Foundation
Bloomfield Hills, MI
The United Jewish Foundation supports Jewish community continuity, including Jewish organizations, older adults, education, children, medical research, and related services. Its 2025 grants had a median of $18,000, though awards ranged widely; 87% of grant dollars went to Michigan, with some support elsewhere in the U.S. The profile does not state whether it accepts unsolicited requests.
Assets
$761.7M
Grants
274
Total Given
$43.6M
More Funders in Ohio
Mayfield Education and Research Foundation down — hundreds of funders to go?