| Saint Francis Hospital Inc | Tulsa | $1,951,973,242 |
| Integris Baptist Medical Center Inc | Oklahoma City | $1,413,956,911 |
| Mercy Hospital Oklahoma City Inc | Oklahoma City | $948,171,901 |
| St John Medical Center Inc | Tulsa | $640,702,927 |
| George Kaiser Family Foundation | Tulsa | $549,695,640 |
| Integris Health Inc | Oklahoma | $483,761,669 |
| Oklahoma City Community Foundation Inc | Oklahoma City | $387,303,991 |
| Feed the Children Inc | Oklahoma City | $386,446,959 |
| Integris South Oklahoma City Hospital Corporation | Oklahoma City | $358,483,886 |
| Integris Rural Health Inc | Oklahoma City | $344,367,647 |
| Integris Ambulatory Care Corporation | Oklahoma City | $339,709,081 |
| University of Tulsa | Tulsa | $339,370,417 |
| Tulsa Community Foundation | Tulsa | $297,921,611 |
| Delta Dental Plan of Oklahoma | Oklahoma City | $296,142,972 |
| Oklahoma State University Foundation | Stillwater | $272,852,964 |
| Community Strategies Inc | Oklahoma City | $257,052,850 |
| Warren Clinic Inc | Tulsa | $238,492,543 |
| Saint Francis Hospital South LLC | Tulsa | $234,350,466 |
| Saint Francis Hospital Muskogee Inc | Tulsa | $233,648,441 |
| Mercy Hospital Ardmore Inc | Ardmore | $227,334,706 |
| Duncan Regional Hospital Inc | Duncan | $225,668,966 |
| Grand Lake Mental Health Center Inc | Nowata | $225,379,895 |
| Oral Roberts University | Tulsa | $197,522,074 |
| Charles and Lynn Schusterman Family Foundation | Tulsa | $175,512,514 |
| St John Health System Inc | Tulsa | $173,202,632 |
| Integris Health Edmond Inc | Oklahoma City | $170,617,320 |
| Family & Childrens Service Inc | Tulsa | $156,691,362 |
| Oklahoma Blood Institute | Oklahoma City | $155,925,006 |
| Kirkpatrick Family Affiliated Fund Ok City Community Foundation Inc | Oklahoma City | $154,835,619 |
| Mercy Hospital Ada Inc | Ada | $154,329,630 |
| Oklahoma Medical Research Foundation | Oklahoma City | $136,776,829 |
| Oklahoma City University | Oklahoma City | $133,799,161 |
| United Brotherhood of Carpenters & Joiners of America | Tulsa | $124,285,512 |
| The Childrens Center Inc | Bethany | $122,119,902 |
| Regional Food Bank of Oklahoma | Oklahoma City | $121,256,625 |
| Variety Care Inc | Oklahoma City | $117,290,432 |
| Citgo Employees Benefit Trust | Tulsa | $112,014,705 |
| Central Oklahoma American Indian Health Council Inc | Oklahoma City | $105,556,638 |
| Tri-County Electric Cooperative Inc | Hooker | $104,946,835 |
| Creoks Mental Health Services | Tulsa | $102,851,722 |
| Verdigris Valley Electric Cooperative Incorporated | Collinsville | $97,372,153 |
| Central Rural Electric Cooperative | Stillwater | $88,491,132 |
| Cotton Electric Cooperative Inc | Walters | $85,953,898 |
| Canadian Valley Electric Cooperative Inc | Seminole | $81,861,027 |
| National Rural Water Association | Duncan | $81,786,877 |
| Lake Region Electric Cooperative Inc | Hulbert | $81,633,914 |
| Museum of the Bible Inc | Oklahoma City | $78,677,320 |
| Cimarron Electric Cooperative Inc | Kingfisher | $78,395,748 |
| Oklahoma Baptist University | Shawnee | $76,025,660 |
| Folds of Honor Foundation | Owasso | $75,913,260 |
| Oklahoma Mental Health Council | Oklahoma City | $73,424,502 |
| Oklahoma Christian University Inc | Edmond | $73,263,162 |
| Southern Nazarene University | Bethany | $72,110,445 |
| Indian Electric Cooperative Inc | Cleveland | $70,201,215 |
| Community Action Project of Tulsa County Inc | Tulsa | $68,854,562 |
| Community Food Bank of Eastern Oklahoma Inc | Tulsa | $61,142,099 |
| Ruth Kaiser Nelson Family Foundation | Tulsa | $60,268,069 |
| Stigler Health and Wellness Center Inc | Stigler | $59,984,545 |
| Rural Electric Co Op Inc | Lindsay | $59,327,039 |
| Choctaw Electric Cooperative Inc | Hugo | $59,299,656 |
| Goodwill Industries of Central Oklahoma Inc | Oklahoma City | $59,015,344 |
| Pipeline Industry Benefit Fund | Tulsa | $58,724,949 |
| Farmers Union Hospital Association | Elk City | $54,865,046 |
| Carpenters International Training Fund | Tulsa | $54,033,695 |
| Dean McGee Eye Institute | Oklahoma City | $53,585,210 |
| Laureate Psychiatric Clinic and Hospital Inc | Tulsa | $52,736,161 |
| Montereau Inc | Tulsa | $52,048,886 |
| Kiamichi Electric Cooperative Inc | Wilburton | $52,021,006 |
| Red River Valley Rural Electric Association | Marietta | $49,239,376 |
| Communities Foundation of Oklahoma Inc | Oklahoma City | $48,694,890 |
| Noble Research Institute LLC | Ardmore | $45,984,919 |
| Southeastern Electric Cooperative Inc | Durant | $43,867,700 |
| Oklahomas Credit Union | Oklahoma City | $43,455,996 |
| Northwestern Electric Cooperative Inc | Woodward | $42,877,771 |
| Central Oklahoma United Methodist Retirement Facility Inc | Oklahoma City | $42,666,862 |
| Kay Electric Cooperative Incorporate | Blackwell | $41,946,996 |
| Cookson Hills Electric Cooperative Inc | Stigler | $41,827,049 |
| Oklahoma Central Credit Union | Tulsa | $38,207,802 |
| The Samuel Roberts Noble Foundation | Ardmore | $37,414,115 |
| Indian Health Care Resource Center | Tulsa | $35,323,936 |
| Oklahoma Proton Foundation | Oklahoma City | $34,389,036 |
| Warren Professional Building Corp | Tulsa | $30,131,309 |
| William K Warren Foundation | Tulsa | $26,542,294 |
| Kathleen S Craft Foundation | Tulsa | $23,654,307 |
| Joseph W Craft III Foundation | Tulsa | $23,470,885 |
| Inasmuch Foundation | Oklahoma City | $22,424,607 |
| Records-Johnston Family Foundation Inc | Oklahoma City | $22,102,881 |
| National Cowboy and Western Heritage Museum Inc | Oklahoma City | $18,530,216 |
| Leta McFarlin Chapman Memorial Tr | Tulsa | $18,334,462 |
| Oklahoma Educators Credit Union | Oklahoma City | $17,580,601 |
| William K Warren Medical Research Center Inc | Tulsa | $16,183,718 |
| Anne and Henry Zarrow Foundation | Tulsa | $15,376,092 |
| Williams Companies Foundaton Inc | Tulsa | $14,891,153 |
| Tulsa Psychiatric Center Inc | Tulsa | $13,875,623 |
| Francis and Kathleen Rooney Foundation | Tulsa | $11,332,914 |
| River Parks Authority | Tulsa | $10,314,193 |
| E L and Thelma Gaylord Foundation | Oklahoma City | $9,676,301 |
| Presbyterian Health Foundation | Oklahoma City | $9,504,330 |
| Glenn Foundation for Medical Research Inc | Edmond | $5,608,931 |
| Ha & Mary K Chapman Foundation | Tulsa | $4,719,457 |
| Valley View Foundation Inc | Ada | $2,906,725 |
| Oge Energy Foundation Inc | Oklahoma City | $935,706 |
| William S Smith Charitable Tr | Tulsa | $211,595 |
| A R and Marylouise Tandy Foundation | Tulsa | $188,861 |
| University of Oklahoma Foundation Inc | Norman | -$36,300,348 |