| STAND FOR THE SILENT INC | Perkins | O50 Youth Development | $13.2M | 4 |
| Tulsa FOP 93 Health & Welfare Trust | Tulsa | Y44 Mutual & Membership Benefit | $13.2M | 0 |
| NEWMAN MEMORIAL HOSPITAL INC | Shattuck | E22Z Health Care | $13.2M | 10 |
| Southern Plains Tribal Health Board Foundation | Oklahoma City | G99 Diseases, Disorders & Medical Disciplines | $13M | 4 |
| THE HARDESTY FAMILY FOUNDATION INC | Tulsa | Z99 Unknown | $13M | 2 |
| SCIENCE MUSEUM OKLAHOMA INC | Oklahoma City | A500 Arts, Culture & Humanities | $13M | 6 |
| Heartway Corporation | Idabel | — | $12.8M | 7 |
| ONE Gas Inc NBU VEBA Master Trust | Tulsa | — | $12.8M | 1 |
| MERCY HEALTH FOUNDATION ADA | Ada | — | $12.7M | 4 |
| SOUTHERN OKLAHOMA WATER CORPORATION | Ardmore | — | $12.5M | 1 |
| USA SOFTBALL INC | Oklahoma City | N030 Recreation & Sports | $12.5M | 3 |
| Leta McFarlin Chapman Memorial Tr 486003AC0 | Tulsa | T900 Philanthropy, Voluntarism & Grantmaking Foundations | $12.5M | 2 |
| Stafford Air & Space Museum Foundation | Weatherford | A50 Arts, Culture & Humanities | $12.4M | 0 |
| The Eagle Sky Foundation Inc | Edmond | N20Z Recreation & Sports | $12.4M | 1 |
| LIFE & HEALTH INSURANCE PROTECTION | Oklahoma City | — | $12.2M | 0 |
| HARMON ELECTRIC ASSOCIATION INC | Hollis | — | $12.1M | 13 |
| McCalls Chapel School | Ada | B99 Education | $11.9M | 3 |
| Water4 Inc | Oklahoma City | P20 Human Services | $11.9M | 5 |
| SOUTHERN OKLAHOMA REGIONAL DISPOSAL INC | Ardmore | W99Z Public & Societal Benefit | $11.9M | 3 |
| OKLAHOMA CONNECTIONS ACADEMY INC | Bartlesville | B99 Education | $11.8M | 0 |
| FAIRFAX MEDICAL FACILITIES INC | Fairfax | E20 Health Care | $11.8M | 13 |
| FRANK M HALLEY CHARITABLE TRUST | Tulsa | T20 Philanthropy, Voluntarism & Grantmaking Foundations | $11.8M | 2 |
| William K Warren Medical Research Center INC | Tulsa | H900 Medical Research | $11.6M | 3 |
| UNITED METHODIST HOME OF ENID INC | Enid | — | $11.6M | 2 |
| MERCY HEALTH FOUNDATION OKLAHOMA CITY | Oklahoma City | — | $11.5M | 6 |
| PIPE FITTERS LOCAL UNION 430 | Tulsa | — | $11.4M | 0 |
| THE FRANCIS AND KATHLEEN ROONEY | Tulsa | T20 Philanthropy, Voluntarism & Grantmaking Foundations | $11.3M | 0 |
| CHRISTIAN HERITAGE ACADEMY | Del City | B24Z Education | $11.3M | 1 |
| LES FELDICK MINISTRIES INC | Kinta | X20Z Religion-Related | $11.2M | 0 |
| PEOPLE FIRST INDUSTRIES OF BRYAN | Durant | — | $11.1M | 0 |
| John Zink Foundation | Tulsa | — | $11.1M | 0 |
| QUAIL CREEK GOLF & COUNTRY CLUB INC | Oklahoma City | — | $11.1M | 3 |
| CROSSOVER COMMUNITY IMPACT INC | Tulsa | P20 Human Services | $11M | 0 |
| YOUTH SERVICES OF TULSA INC | Tulsa | P36Z Human Services | $11M | 1 |
| Riverfield Country Day School | Tulsa | B22Z Education | $11M | 2 |
| COLLEGE BOUND ACADEMY | Tulsa | B29 Education | $11M | 1 |
| Southwestern Christian University | Bethany | B42 Education | $11M | 1 |
| KIAMICHI FAMILY MEDICAL CENTERINC | Battiest | E302 Health Care | $11M | 7 |
| WESTMINSTER SCHOOL INC | Oklahoma City | — | $10.9M | 4 |
| SANFORD P & IRENE F BURNSTEIN FOUNDATION | Tulsa | — | $10.9M | 0 |
| SOUTH CENTRAL INDUSTRIES INC | Shawnee | J300 Employment | $10.8M | 1 |
| CAMERON FAMILY FOUNDATION | Oklahoma City | T22 Philanthropy, Voluntarism & Grantmaking Foundations | $10.7M | 0 |
| THE ACADEMY OF CLASSICAL CHRISTIAN STUDIES INC | Oklahoma City | B240 Education | $10.7M | 2 |
| THINK ABILITY INC | Duncan | — | $10.7M | 0 |
| RIVER PARKS AUTHORITY | Tulsa | N023 Recreation & Sports | $10.4M | 3 |
| INSIGHT SCHOOL OF OKLAHOMA INC | Midwest City | B25 Education | $10.4M | 0 |
| PIVOT INC | Oklahoma City | P300 Human Services | $10.3M | 1 |
| Gatesway Foundation Inc | Broken Arrow | P820 Human Services | $10.3M | 0 |
| Southeast Oklahoma Library System | McAlester | B71Z Education | $10.2M | 0 |
| THE REACH CORPORATION | Weleetka | J30 Employment | $10.2M | 0 |
