| 1 | Oklahoma State University Foundation Stillwater | $579.9M | $242.7M | $1.6B |
| 2 | University of Oklahoma Foundation INC Norman | $444.8M | $218.7M | $2.8B |
| 3 | University of Tulsa Tulsa | $375.9M | $330.3M | $1.7B |
| 4 | Oral Roberts University Tulsa | $207.3M | $192.9M | $306.1M |
| 5 | Oklahoma Baptist University Shawnee | $166.8M | $96.6M | $326.6M |
| 6 | Oklahoma City University Oklahoma City | $122.3M | $122.0M | $384.4M |
| 7 | Oklahoma Christian University INC Edmond | $77.7M | $70.4M | $120.9M |
| 8 | Noble Research Institute LLC Ardmore | $73.9M | $45.8M | $138.2M |
| 9 | Southern Nazarene University Bethany | $71.1M | $64.9M | $114.3M |
| 10 | Folds of Honor Foundation Owasso | $66.7M | $65.5M | $109.1M |
| 11 | Santa Fe South Schools INC Oklahoma City | $58.2M | $58.2M | $9.5M |
| 12 | Oklahoma Wesleyan University Bartlesville | $52.1M | $32.2M | $44.7M |
| 13 | Dove Schools Warr Acres | $41.0M | $41.0M | $16.6M |
| 14 | Southeastern Foundation Durant | $40.0M | $5.9M | $45.0M |
| 15 | Oklahoma Skynet INC Midwest City | $28.9M | $28.9M | $4.2M |
| 16 | Heritage Hall School INC Oklahoma City | $28.7M | $28.7M | $63.4M |
| 17 | Southwestern Oklahoma State University Foundation INC Weatherford | $21.5M | $8.1M | $35.4M |
| 18 | Sam Viersen Family Foundation INC Tulsa | $21.5M | $0 | $32.7M |
| 19 | Panhandle State Foundation Goodwell | $20.0M | $3.2M | $23.0M |
| 20 | The Academy of Classical Christian Studies INC Oklahoma City | $18.1M | $18.0M | $26.8M |
| 21 | Oklahoma Public School Resource Center INC Oklahoma City | $17.6M | $17.6M | $10.3M |
| 22 | Northwestern Oklahoma State University Foundation INC Alva | $17.4M | $6.5M | $45.9M |
| 23 | Osteopathic Medical Education Consortium of Oklahoma INC Tulsa | $17.2M | $17.2M | $4.3M |
| 24 | Tulsa Honor Academy Tulsa | $17.1M | $17.1M | $8.7M |
| 25 | Tulsa Christian Education Corporation Tulsa | $16.6M | $16.4M | $18.1M |
| 26 | Tulsa Library Trust Tulsa | $15.2M | $13.4M | $38.1M |
| 27 | Community Highered Institute Tulsa | $14.2M | $14.2M | $40.1M |
| 28 | Oklahoma Partnership for School Readiness Foundation INC Oklahoma City | $14.1M | $14.1M | $5.3M |
| 29 | Riverfield Country Day School Tulsa | $12.0M | $11.0M | $20.5M |
| 30 | McCalls Chapel School INC Ada | $11.9M | $11.8M | $23.0M |
| 31 | Oklahoma Connections Academy INC Bartlesville | $11.8M | $11.8M | $2.6M |
| 32 | Phillips Theological Seminary Corporation Tulsa | $11.7M | $8.4M | $174.3M |
| 33 | Christian Heritage Academy Del City | $11.3M | $11.3M | $16.4M |
| 34 | College Bound Academy INC Tulsa | $11.0M | $11.0M | $4.0M |
| 35 | Southwestern Christian University INC Bethany | $10.7M | $10.7M | $9.2M |
| 36 | University of Central Oklahoma Foundation Edmond | $10.6M | $9.6M | $62.3M |
| 37 | Insight School of Oklahoma Midwest City | $10.4M | $10.4M | $1.5M |
| 38 | Southeast Oklahoma Library System McAlester | $10.2M | $10.2M | $19.7M |
| 39 | Harding Independence Charter District INC Oklahoma City | $10.0M | $10.0M | $1.9M |
| 40 | Regent Preparatory School of Oklahoma INC Tulsa | $9.3M | $8.3M | $17.5M |
| 41 | Southwest Covenant Schools Incorporated Yukon | $8.9M | $8.9M | $17.0M |
| 42 | Oklahoma State University Alumni Association Stillwater | $8.5M | $4.3M | $28.1M |
| 43 | Tulsa Legacy Charter School INC Tulsa | $8.3M | $8.3M | $4.4M |
| 44 | Cascia Hall Foundation Tulsa | $8.1M | $4.3M | $12.1M |
| 45 | Bacone Baptist Church Muskogee | $8.0M | $7.9M | $7.8M |
| 46 | Oklahoma Educational Technology Tr Oklahoma City | $8.0M | $2.6M | $44.3M |
| 47 | John W Rex Charter Elementary School INC Oklahoma City | $7.6M | $7.6M | $1.6M |
| 48 | Patti Johnson Wilson Foundation Tulsa | $7.6M | $0 | $34.1M |
| 49 | Randall University INC Moore | $7.3M | $7.2M | $7.7M |
| 50 | Kipp Tulsa Academy College Preparatory INC Tulsa | $6.9M | $6.9M | $2.3M |