Nonprofits in Ohio
The IRS lists 81,889 active tax-exempt organizations operating in Ohio, including 64,511 501(c)(3)s, to which you can make a tax-deductible donation. Ohio nonprofit organizations reported $191 billion in revenue on their most recent tax filings.
Highest-Revenue Nonprofits in Ohio
Figures are based on the most recently reported revenue for each organization. Nonprofits may take anywhere from a few months to more than a year to submit their tax information, depending on the size of the organization and other factors.
| Organization | Total Revenue | Year |
|---|---|---|
| Cleveland Clinic Foundation | $17,206,708,633 | 2024 |
| Battelle Memorial Institute | $13,526,408,187 | 2025 |
| Bon Secours Mercy Health Inc | $11,537,795,267 | 2024 |
| The Cleveland Clinic Foundation | $9,680,031,802 | 2024 |
| Caresource Ohio Inc | $8,559,845,484 | 2024 |
| University Hospitals Health System Inc | $5,946,385,392 | 2024 |
| Ohiohealth Corporation | $5,723,845,185 | 2025 |
| Nationwide Childrens Hospital | $4,325,096,802 | 2024 |
| Childrens Hospital Medical Center | $3,568,680,376 | 2025 |
| Uc Healthcare System | $2,926,481,065 | 2025 |
Highest-Earning Nonprofit Employees in Ohio
Salary figures are based on the most recently reported tax year for each organization. Nonprofits may take anywhere from a few months to more than a year to submit their tax information, depending on the size of the organization and other factors.
Nonprofits also report salaries from related organizations, as well as other benefits and bonuses, which are shown below the listed compensation if they are reported.
| Employee | Compensation | Year |
|---|---|---|
|
John Starcher Jr Jd
(President & Ceo, Bon Secours Mercy Health) Bon Secours Mercy Health Inc |
$10,780,891
Other: $2,028,142
|
2024 |
|
Mihaljevic Md Tomislav
(Director, Pres, Chair, Ceo - Ccf) Cleveland Clinic Foundation |
$7,650,847
Other: $2,058,305
|
2024 |
|
Mihaljevic Md Tomislav
(Director, President & Ceo) The Cleveland Clinic Foundation |
$7,650,847
Other: $2,058,305
|
2024 |
|
Markovich Stephen E Md
(Ceo/president/board - Ohiohlth) Ohiohealth Corporation |
$6,451,850
Other: $94,360
|
2025 |
|
Erhardt Preitauer
(President & Ceo, Director) Caresource |
$6,076,721
Other: $6,124,441
|
2024 |
|
Lewis Von Thaer
(President & Ceo) Battelle Memorial Institute |
$5,933,094
Other: $45,302
|
2025 |
|
Megerian Cliff Md
(Director Ex Off/ceo) University Hospitals Health System Inc |
$4,389,348
Other: $59,493
|
2024 |
|
Bonasso Christian L Md
((see Schedule O)) Ohiohealth Corporation |
$3,390,670
Other: $52,880
|
2025 |
|
Dr Jay M Hamze
(Medical Physician) Somc Medical Care Foundation Inc |
$3,388,187
Other: $86,594
|
2025 |
|
Seaman Brian F Do
((see Schedule O)) Ohiohealth Corporation |
$3,278,101
Other: $77,403
|
2025 |
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