Ohio · Nonprofit
MAYFIELD EDUCATION AND RESEARCH FOUNDATION
MAYFIELD EDUCATION AND RESEARCH FOUNDATION (Ohio) receives grants from 13 organizations whose IRS filings report $463,309 to it, the largest being THE NEUROSCIENCES FOUNDATION ($282,583). 8 of them have funded it in more than one year.
- Revenue FY2025
- $1.8M
- Funders on record
- 13
- Grants received
- $463k
- Net assets
- $11M
What Mayfield Education and Research Foundation does
Mission
Neuroscience research & education.
As stated on its FY2025 Form 990.
Programs
Education: Mayfield Education and Research Foundation hosts 2 lectureships and 1 clinic annually. The herch lectureship was established in 2023 is a 2-day course for residents and fellows, that focuses on innovative spine surgery tools and techniques that will improve the lives of patients with spine disorders. Over the 2-day course, residents and fellows attend lectures and hands on labs. The keller lectureship was established in 2011 to enhance resident and fellowship programs by supporting an invited lecturer of international stature in the field of skull base surgery and surgical anatomy. The keller lectureship offers the opportunity for medical students, residents, fellows, and faculty to learn firsthand from renowned neurosurgeons. The winter clinics for cranial and spinal surgery has been hosted by Mayfield Education and Research Foundation for more than 3 decades. The clinic allows neurosurgery participants from 37 states and five countries to gather to experience research, networking, and professional development.
$400,868 spent$245,964 earned by the program36% of program spendingClinical trials: Mayfield Education and Research Foundation provides dedicated staff to conduct clinical trials, submit research protocols and proposals, aid in data collection, assist with statistical analysis, and support final journal publication with medical writing, illustration, and presentation support through glia media. Network of collaborative partners include the lindner research center at the christ hospital, ohc at the jewish hospital, and the trihealth hatton research institute. There were 15 clinical trials for the period 10/1/24 to 9/30/25, including quarterly trials for gt medical technologies, periodic trials for medtronic, ortho fix, and nevro.
$292,328 spent$124,692 earned by the program26% of program spendingLabs: mayfield education research foundation provides a space and support for surgical training labs for neuroscience, orthopedics, ent, and general surgery. Services provided include skilled staff to assist with planning and promotion, assistance with specimen procurement, and logistics staff for the event. The 1,500 square foot lab a 1,000 square foot conference room are located at the mayfield surgical innovation center in cincinnati, oh. 14 labs were held during the period 10/1/24 to 9/30/25 by mount st. Joseph, inspire, the christ hospital, coloplast, si bone, arthrex, medtronic, providence medical and essential robotics.
$189,567 spent$144,049 earned by the program17% of program spendingBrain tumor institute: the brain tumor institute was created in 2024 to enhance the access to clinical trials for patients with brain tumors and recruit specialists who can improve care for patients at multiple hospital services. The bti provides a full spectrum of care to patients with brain tumors and promotes research that will enhance care for generations to come. The vision of the bti is to make greater cincinnati a national destination for elite brain tumor care.
$245,772 spentof which $212,500 as grants22% of program spending
The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $1,128,535.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2023 to 2024, from $6.4M to $9.3M (+45%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
61% of MAYFIELD EDUCATION AND RESEARCH FOUNDATION’s revenue is contributions — more donation-reliant than the typical peer (51% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 of the last 9 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Board chair
William D Tobler Md
Chairman
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base held at 3 funders, grant income rose $23k → $25k.
3 of 13 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 8% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of MAYFIELD EDUCATION AND RESEARCH FOUNDATION’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
MAYFIELD EDUCATION AND RESEARCH FOUNDATION leans on a few funders — its largest provides 61% of grant income and the top three 76%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
89% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund MAYFIELD EDUCATION AND RESEARCH FOUNDATION.
Largest funder’s share by year: 2017 44% · 2018 90% · 2019 29% · 2020 55% · 2021 83% · 2022 99% · 2023 59% — growing more concentrated.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
14% of MAYFIELD EDUCATION AND RESEARCH FOUNDATION's funders are still giving 3 years after their first grant; 62% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
96% of MAYFIELD EDUCATION AND RESEARCH FOUNDATION's grant income comes from Ohio funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $39k arriving through sponsors registered in 3 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
MAYFIELD EDUCATION AND RESEARCH FOUNDATION runs a healthier operating margin than three-quarters of the 4,665 health nonprofits its size.
this organization peer median middle 50% of peers· 4,665 health nonprofits $1M–$10M, FY2025
Organizations like MAYFIELD EDUCATION AND RESEARCH FOUNDATION
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Ohio
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
74% of spending goes to programs.
Governance
Public support
21%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for MAYFIELD EDUCATION AND RESEARCH FOUNDATION: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds MAYFIELD EDUCATION AND RESEARCH FOUNDATION?
- MAYFIELD EDUCATION AND RESEARCH FOUNDATION (Ohio) receives grants from 13 organizations whose IRS filings report $463,309 to it, the largest being THE NEUROSCIENCES FOUNDATION ($282,583). 8 of them have funded it in more than one year.
- How many funders does MAYFIELD EDUCATION AND RESEARCH FOUNDATION have?
- IRS filings report 13 organizations giving $463,309 in grants to MAYFIELD EDUCATION AND RESEARCH FOUNDATION, 8 of which have funded it in more than one year.
- Who is the largest funder of MAYFIELD EDUCATION AND RESEARCH FOUNDATION?
- THE NEUROSCIENCES FOUNDATION is the largest funder on record, with $282,583 in grants. The full list of funders is on this page.
- How can an organization like MAYFIELD EDUCATION AND RESEARCH FOUNDATION find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Ohio. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 13 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing