| Jack Joseph & Morton Mandel Foundation | Cleveland | 2395 | $834.0M | $348K |
| The Wexner Family Charitable Fund | New Albany | 243 | $552.3M | $2.3M |
| Nationwide Foundation | Columbus | 27 | $336.6M | $12.5M |
| John J & Mary R Schiff Foundation | Cincinnati | 424 | $314.6M | $742K |
| The George Gund Foundation | Cleveland | 2633 | $308.7M | $117K |
| Farmer Family Foundation | Cincinnati | 781 | $273.3M | $350K |
| Tr Ua Fifth Third Foundation | Cincinnati | 11 | $224.5M | $20.4M |
| Keybank Foundation | Cleveland | 14 | $222.7M | $15.9M |
| Timken Foundation of Canton | Canton | 1525 | $219.5M | $144K |
| American Electric Power Foundation | Columbus | 3083 | $218.4M | $71K |
| The Jewish Foundation of Cincinnati | Cincinnati | 509 | $203.8M | $400K |
| Joanie Jeanne and Howard Bernard Foundation | Cincinnati | 66 | $199.6M | $3.0M |
| Ag Foundation | East Liverpool | 12 | $194.0M | $16.2M |
| The Kroger Co Foundation | Cincinnati | 8228 | $178.8M | $22K |
| The Huntington Foundation | Columbus | 10 | $151.8M | $15.2M |
| The Connor Group Foundation Aka the | Miamisburg | 402 | $151.7M | $377K |
| Mathile Family Foundation | Dayton | 1320 | $143.9M | $109K |
| The Howley Foundation | Cleveland | 442 | $138.6M | $314K |
| Jay and Jean Schottenstein Foundation | Columbus | 573 | $131.3M | $229K |
| Carol Ann and Ralph V Haile Jr | Cincinnati | 1768 | $123.6M | $70K |
| The Lozick Family Foundation | Pepper Pike | 2573 | $122.6M | $48K |
| Osteopathic Heritage Foundation | Dublin | 446 | $114.2M | $256K |
| Greenacres Foundation Inc | Cincinnati | 438 | $109.5M | $250K |
| The Progressive Insurance Foundation | Cleveland | 10 | $108.1M | $10.8M |
| The Carl H and Edyth B Lindner | Cincinnati | 238 | $107.4M | $451K |
| Wilson Sheehan Foundation | Springfield | 811 | $106.4M | $131K |
| The Nord Family Foundation | Amherst | 3524 | $103.5M | $29K |
| The Austin E Knowlton Foundation Inc | Cincinnati | 464 | $100.2M | $216K |
| The Morton and Barbara Mandel | Cleveland | 713 | $97.4M | $137K |
| The Timashev Family Foundation | Galena | 79 | $96.7M | $1.2M |
| Firstenergy Foundation | Akron | 6426 | $94.8M | $15K |
| The Goatie Foundation Ta 20 | Brooklyn | 413 | $94.5M | $229K |
| Eaton Charitable Fund | Brooklyn | 12 | $91.5M | $7.6M |
| Womens Project Foundation | Brooklyn | 25 | $81.7M | $3.3M |
| The Nordson Corporation Foundation | Westlake | 4692 | $81.6M | $17K |
| Lift a Life Foundation Inc | Mayfield Heights | 523 | $81.5M | $156K |
| The Weatherhead Foundation | Mayfield Heights | 46 | $81.1M | $1.8M |
| The Frederick E and Julia G | Westlake | 48 | $79.8M | $1.7M |
| Western & Southern Financial Fund Inc | Cincinnati | 10 | $75.1M | $7.5M |
| The Scripps Howard Foundation | Cincinnati | 4816 | $73.8M | $15K |
| Albert J Weatherhead Estate Trust | Mayfield Heights | 11 | $73.3M | $6.7M |
| Hcs Foundation | Cleveland | 662 | $72.9M | $110K |
| Covenant Foundation Inc | Cincinnati | 11 | $68.4M | $6.2M |
| Jhsi Inc | Cincinnati | 152 | $68.0M | $447K |
| The Veale Foundation | Pepper Pike | 467 | $66.8M | $143K |
| Burton D Morgan Foundation Inc | Hudson | 1769 | $63.8M | $36K |
| William J and Dorothy K O'Neill | Cleveland | 2343 | $63.0M | $27K |
| The Kelvin & Eleanor Smith Foundation | Cleveland | 682 | $62.5M | $92K |
| Charles H Dater Foundation Inc | Cincinnati | 2085 | $62.5M | $30K |
| Nisource Charitable Foundation | Columbus | 5961 | $59.9M | $10K |
| The James J and Joan a Gardner | Cincinnati | 625 | $59.8M | $96K |
| The Ariel Foundation | Mount Vernon | 694 | $57.9M | $83K |
| Owens Corning Foundation | Toledo | 13 | $57.4M | $4.4M |
| Saint Luke's Foundation of Cleveland Oh | Cleveland | 1113 | $56.8M | $51K |
| Fred F Silk Charitable Foundation | Louisville | 118 | $56.7M | $480K |
| Kettering Family Foundation | Dayton | 1418 | $55.7M | $39K |
| Parker-Hannifin Foundation | Cleveland | 24 | $55.0M | $2.3M |
| Ihs Foundation | Columbus | 53 | $53.4M | $1.0M |
| Ak Steel Foundation | West Chester | 1935 | $52.3M | $27K |
| The Char and Chuck Fowler Family | Mayfield Heights | 1573 | $50.6M | $32K |
| The Joseph and Florence Mandel Family | Cleveland | 934 | $50.6M | $54K |
| The Joseph and Florence Mandel Family | Cleveland | 553 | $50.3M | $91K |
| Robert & Ita Klein Charitable Foundation | Beachwood | 78 | $49.3M | $632K |
| Samuel H & Maria Miller Foundation | Cleveland | 496 | $47.5M | $96K |
| The Frances and Craig Lindner Foundation | Cincinnati | 204 | $47.1M | $231K |
| Stranahan Foundation | Toledo | 837 | $45.9M | $55K |
| Gund Geoffrey Fdn | Brooklyn | 526 | $45.6M | $87K |
| L & L Nippert Charitable Foundation Inc | Blue Ash | 750 | $43.9M | $58K |
| The Psalms Foundation | Cincinnati | 223 | $43.8M | $196K |
| Third Federal Foundation | Cleveland | 1078 | $43.6M | $40K |
| Hoover Foundation Income Account | Columbus | 745 | $42.6M | $57K |
| The Sam J Frankino Foundation | Cleveland | 1156 | $41.1M | $36K |
| Marge & Charles J Schott Foundation | Cincinnati | 725 | $39.4M | $54K |
| Gerlach Foundation Inc | Columbus | 49 | $37.6M | $768K |
| Tsf | Springfield | 11 | $37.5M | $3.4M |
| The Reinberger Foundation | Cleveland | 1469 | $35.7M | $24K |
| Cardinal Health Foundation | Dublin | 1519 | $35.4M | $23K |
| Fred a Lennon Charitable Trust | Pepper Pike | 1154 | $34.6M | $30K |
| John Huntington Fund for Education | Cleveland | 137 | $34.3M | $250K |
| Alexander and Sarah Cutler Family Foundation | Gates Mills | 171 | $34.2M | $200K |
| The Stocker Foundation | Elyria | 2395 | $33.9M | $14K |
| The Park Foundation | Cleveland | 572 | $33.5M | $59K |
| Samaritan Foundation | Haviland | 1031 | $33.4M | $32K |
| Clement & Ann Buenger Foundation | Cincinnati | 50 | $32.7M | $653K |
| The Kent H Smith Charitable Trust | Cleveland | 8 | $31.7M | $4.0M |
| The Paul and Carol David Foundation | Canton | 624 | $31.7M | $51K |
| The Warrington Foundation Co Fifth Third | Cincinnati | 499 | $31.1M | $62K |
| The Milton and Tamar Maltz | Beachwood | 347 | $31.1M | $90K |
| Christman Anne Kilcawley Fdn Xxx-Xx-Xxxx | Youngstown | 84 | $30.9M | $367K |
| W S Ballenger Tr Fbo Mott Comm College | Columbus | 14 | $30.9M | $2.2M |
| Fleming Family Foundation | Columbus | 732 | $30.4M | $42K |
| J William & Mary Straker Charitable Fdn | Zanesville | 909 | $30.2M | $33K |
| The Father's Table Foundation | Cleveland | 769 | $30.1M | $39K |
| The Raymond John Wean Foundation | Warren | 1215 | $29.7M | $24K |
| The Schiewetz Foundation Inc | Dayton | 127 | $29.6M | $233K |
| Tr Uw Jacob Schmidlapp #1 | Cincinnati | 350 | $29.3M | $84K |
| The Lavalley Foundation | Sylvania | 585 | $29.1M | $50K |
| Minnie Ballenger Trust 1302 Fbo Womens Hosp | Columbus | 14 | $29.0M | $2.1M |
| Deaconess Foundation Fka Deaconess | Independence | 537 | $28.5M | $53K |
| Margaret M and Robert D Walter | Columbus | 15 | $28.3M | $1.9M |
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