| 1 | Heidelberg University | Education | $92.8M | $200.5M |
| 2 | Tiffin University | Education | $77.5M | $108.3M |
| 3 | The Tiffin Community Foundation | Philanthropy, Voluntarism & Grantmaking | $12.4M | $34.6M |
| 4 | Csji-tiffin INC | Unclassified | $8.6M | $17.3M |
| 5 | Young Mens Christian Association of Bucyrus-tiffin INC | Human Services | $7.3M | $9.2M |
| 6 | National Machinery Foundation INC | Philanthropy, Voluntarism & Grantmaking | $6.3M | $18.0M |
| 7 | Renaissance House INC | Unclassified | $6.0M | $2.5M |
| 8 | Nm Group Global LLC Health Benefit Tr | Mutual & Membership Benefit | $5.1M | $880K |
| 9 | Amercian Legion | Mutual & Membership Benefit | $3.2M | $562K |
| 10 | Seneca County Commission on Aging INC | Human Services | $2.2M | $2.3M |
| 11 | Seneca County Agency Transportation | Human Services | $2.2M | $3.2M |
| 12 | Seneca County Agricultural Society INC | Human Services | $2.0M | $2.5M |
| 13 | Bridges Community Academy | Unclassified | $1.9M | $1.4M |
| 14 | Tiffin Theatre INC | Arts, Culture & Humanities | $1.5M | $2.3M |
| 15 | Casa of Seneca Sandusky and Wyandot Counties | Civil Rights, Social Action & Advocacy | $1.4M | $492K |
| 16 | Veterans of Foreign Wars of the United States Department of Ohio | Unclassified | $1.3M | $225K |
| 17 | Child Evangelism Fellowship of Ohio | Youth Development | $1.3M | $1.1M |
| 18 | North Central Academy | Education | $1.1M | $48K |
| 19 | Erie Residential Living INC | Unclassified | $1.1M | $573K |
| 20 | Tiffin Seneca Library Foundation | Education | $1.1M | $5.7M |
| 21 | Seneca Industrial & Economic Development Corp. | Unclassified | $1.0M | $1.9M |
| 22 | Kiwanis Manor of Tiffin INC | Unclassified | $903K | $2.2M |
| 23 | Amvets | Unclassified | $893K | $1.1M |
| 24 | Allen Eiry Senior Center INC | Unclassified | $849K | $1.5M |
| 25 | Mohawk Golf and Country Club INC | Unclassified | $845K | $868K |
| 26 | Fraternal Order of Eagles | Unclassified | $810K | $653K |
| 27 | Tiffin Seneca Day Care Center INC | Human Services | $793K | $436K |
| 28 | Calvert Catholic Schools Educational Foundation | Education | $752K | $3.8M |
| 29 | Seneca County Humane Society | Animal-Related | $725K | $2.1M |
| 30 | Seneca Regional Chamber of Commerce & Visitor Services | Unclassified | $670K | $821K |
| 31 | Tiffin Seneca United Way INC | Unclassified | $570K | $1.2M |
| 32 | Loyal Order of Moose Lodge No 84 | Unclassified | $446K | $852K |
| 33 | Knights of Columbus | Unclassified | $397K | $835K |
| 34 | Black Swamp Vbc | Recreation & Sports | $346K | $162K |
| 35 | International Union United Auto Aerospace & Agricultural Workers | Unclassified | $331K | $334K |
| 36 | Financial Assistance for Cancer Treatment INC | Diseases, Disorders & Medical Disciplines | $325K | $198K |
| 37 | Habitat for Humanity International INC | Unclassified | $275K | $812K |
| 38 | Franciscan Earth Literacy Center | Religion-Related | $250K | $593K |
| 39 | The Barnes-deinzer Seneca County Museum Foundation INC | Arts, Culture & Humanities | $242K | $1.8M |
| 40 | Patchworks House INC | Crime & Legal-Related | $237K | $197K |
| 41 | Seneca County Farm Bureau INC | Unclassified | $193K | $331K |
| 42 | Benevolent & Protective Order of Elks of the USA | Unclassified | $180K | $773K |
| 43 | Ohio Athletic Trainers Association | Community Improvement & Capacity Building | $151K | $536K |
| 44 | Charles D Bud Hering Jr Foundation | Unclassified | $145K | $694K |
| 45 | Hopes Landing | Human Services | $140K | $5K |
| 46 | East Green Foundation | Environment | $134K | $2.8M |
| 47 | Seneca County Homeless Coalition | Human Services | $127K | $414K |
| 48 | Sisters in Shelter | Human Services | $116K | $246K |
| 49 | Tiffin Masonic Relief Association | Unclassified | $110K | $760K |
| 50 | Hardin County Farm Bureau INC | Unclassified | $101K | $112K |
| 51 | Tornado Athletic Boosters Club | Public Safety, Disaster Preparedness & Relief | $99K | $51K |
| 52 | Senior Community Center of Kiwanis Manor INC | Human Services | $95K | $315K |
| 53 | Greenlawn Cemetery Association | Unclassified | $94K | $944K |
| 54 | Hancock County Farm Bureau INC | Unclassified | $92K | $107K |
| 55 | Webster Foundation INC | Unclassified | $90K | $1 |
| 56 | Dress Right Dress INC | Human Services | $89K | $384 |
| 57 | Wyandot County Farm Bureau INC | Unclassified | $82K | $105K |
| 58 | Tcs K-5 PTO | Education | $80K | $76K |
| 59 | Royal Arch Masons of Ohio Grand Chapter | Unclassified | $77K | $879K |
| 60 | Izaak Walton League of America INC | Unclassified | $77K | $428K |
| 61 | Seneca County Common Ground | Food, Agriculture & Nutrition | $77K | $3K |
| 62 | Tiffin Band Boosters | Arts, Culture & Humanities | $52K | $97K |
| 63 | Tiffin Youth Sports Association | Youth Development | $52K | $47K |
| 64 | Rotary International | Unclassified | $50K | $26K |
| 65 | Reclaim It 127 | Human Services | $43K | $10K |
| 66 | Foundation of Tiffin Rotary Club | Philanthropy, Voluntarism & Grantmaking | $38K | $121K |
| 67 | Tiffin Historic Trust INC | Arts, Culture & Humanities | $38K | $258K |
| 68 | Tiffin-seneca Teen Center | Unclassified | $24K | $12K |
| 69 | Seneca County Home Auxiliary | Unclassified | $24K | $25K |
| 70 | Tiffin Eagles Scholarship Foundation INC | Education | $15K | $34K |
| 71 | Kiwanis Club of Tiffin Ohio Foundation | Philanthropy, Voluntarism & Grantmaking | $12K | $47K |
| 72 | The Britten J Hess Memorial Scholarship Trust | Education | $11K | $59K |
| 73 | Fred C Fox Scholarship Trust | Unclassified | $6K | $37K |
| 74 | Buckeye Border Collie Rescue INC | Animal-Related | $0 | $0 |
| 75 | Old Fort Schools Renovation Committee INC | Education | $0 | $0 |
| 76 | The Ohio State University | Youth Development | $0 | $0 |
| 77 | Seneca County Firemans Association | Public Safety, Disaster Preparedness & Relief | $0 | $0 |
| 78 | Royal Arch Masons of Ohio | Unclassified | $0 | $0 |
| 79 | The Ohio State University | Unclassified | $0 | $0 |
| 80 | The Ohio State University | Youth Development | $0 | $0 |
| 81 | St. Francis Senior Ministries Day Care INC | Unclassified | $0 | $0 |
| 82 | American Civil War Museum of Ohioinc | Arts, Culture & Humanities | $0 | $0 |
| 83 | Calvert Catholic Schools | Unclassified | $0 | $0 |
| 84 | The Ohio State University | Youth Development | $0 | $0 |
| 85 | The Ohio State University | Youth Development | $0 | $0 |
| 86 | League of Women Voters of Ohio | Unclassified | $0 | $0 |
| 87 | Old Fort Local Education Association | Unclassified | $0 | $0 |
| 88 | Restoration Alliance Church | Unclassified | $0 | $0 |
| 89 | International Association of Lions Clubs | Unclassified | $0 | $0 |
| 90 | American Postal Workers Union | Unclassified | $0 | $0 |
| 91 | Shriners International | Unclassified | $0 | $0 |
| 92 | Family Counseling Service INC | Unclassified | $0 | $0 |
| 93 | International Union United Auto Aerospace & Agricultural Workers | Unclassified | $0 | $0 |
| 94 | Order of the Eastern Star of Ohio | Unclassified | $0 | $0 |
| 95 | Serra International | Unclassified | $0 | $0 |
| 96 | Fraternal Order of Police | Unclassified | $0 | $0 |
| 97 | Fraternal Order of Eagles | Unclassified | $0 | $0 |
| 98 | The Ohio State University | Youth Development | $0 | $0 |
| 99 | Tiffin Art Guild INC | Arts, Culture & Humanities | $0 | $0 |
| 100 | The Ohio State University | Youth Development | $0 | $0 |