| 1 | Saint Francis Hospital INC Tulsa | E | $2.0B | $1.8B | $4.1B |
| 2 | Integris Baptist Medical Center INC Oklahoma City | E | $1.2B | $1.2B | $2.0B |
| 3 | The Samuel Roberts Noble Foundation Ardmore | T | $925.4M | $0 | $1.1B |
| 4 | Mercy Hospital Oklahoma City INC Oklahoma City | E | $811.7M | $810.2M | $626.2M |
| 5 | Tulsa Community Foundation Tulsa | T | $733.5M | $297.9M | $1.1B |
| 6 | George Kaiser Family Foundation Tulsa | T | $695.9M | $549.7M | $5.1B |
| 7 | Oklahoma State University Foundation Stillwater | B | $579.9M | $242.7M | $1.6B |
| 8 | Charles and Lynn Schusterman Family Foundation Tulsa | T | $556.0M | $0 | $2.2B |
| 9 | University of Oklahoma Foundation INC Norman | B | $444.8M | $218.7M | $2.8B |
| 10 | Integris Health INC Oklahoma | E | $437.7M | $437.7M | $2.2B |
| 11 | Feed the Children INC Oklahoma City | Q | $410.6M | $408.9M | $172.8M |
| 12 | University of Tulsa Tulsa | B | $375.9M | $330.3M | $1.7B |
| 13 | Integris South Oklahoma City Hospital Corporation Oklahoma City | E | $317.0M | $317.0M | $251.7M |
| 14 | Oklahoma City Community Foundation INC Oklahoma City | T | $315.2M | $107.0M | $974.0M |
| 15 | Delta Dental Plan of Oklahoma Oklahoma City | Z | $307.6M | $296.1M | $116.7M |
| 16 | Integris Rural Health INC Oklahoma City | E | $307.4M | $307.1M | $246.9M |
| 17 | Duncan Regional Hospital INC Duncan | E | $290.2M | $214.3M | $271.0M |
| 18 | Integris Ambulatory Care Corporation Oklahoma City | E | $275.1M | $275.1M | $220.9M |
| 19 | J a & Leta M Chapman Charitable TR Tulsa | T | $271.1M | $67.5M | $979.4M |
| 20 | Community Strategies INC Oklahoma City | W | $266.3M | $266.3M | $54.5M |
| 21 | Ttcu Federal Credit Union Tulsa | Z | $244.3M | $133.1M | $2.7B |
| 22 | Saint Francis Hospital Muskogee INC Tulsa | E | $242.1M | $218.6M | $200.4M |
| 23 | Saint Francis Hospital South LLC Tulsa | E | $228.7M | $227.2M | $249.6M |
| 24 | Warren Clinic INC Tulsa | E | $225.3M | $224.5M | $149.8M |
| 25 | Carpenters International Training Fund Tulsa | Z | $221.8M | $54.0M | $166.9M |
| 26 | Oklahoma Medical Research Foundation Oklahoma City | H | $214.5M | $132.3M | $528.8M |
| 27 | Oral Roberts University Tulsa | B | $207.3M | $192.9M | $306.1M |
| 28 | Grand Lake Mental Health Center INC Tulsa | F | $206.9M | $206.9M | $88.4M |
| 29 | Mercy Hospital Ardmore INC Ardmore | E | $202.6M | $202.4M | $95.2M |
| 30 | E L and Thelma Gaylord Foundation Oklahoma City | T | $197.2M | $0 | $260.1M |
| 31 | Oklahoma Baptist University Shawnee | B | $166.8M | $96.6M | $326.6M |
| 32 | Family & Childrens Service INC Tulsa | P | $162.5M | $134.1M | $145.3M |
| 33 | Oklahoma Blood Institute Oklahoma City | E | $156.6M | $155.9M | $119.9M |
| 34 | Integris Health Edmond INC Oklahoma City | E | $138.8M | $138.8M | $221.4M |
| 35 | Mercy Hospital Ada INC Ada | Z | $138.3M | $138.3M | $64.5M |
| 36 | Central Oklahoma United Methodist Retirement Facility INC Oklahoma City | P | $135.8M | $42.7M | $83.6M |
| 37 | St. John Health System INC Tulsa | E | $135.5M | $135.5M | $22.5M |
| 38 | The Childrens Center INC Bethany | E | $131.6M | $131.5M | $126.1M |
| 39 | Crossseed INC Tulsa | T | $123.8M | $121.9M | $122.1M |
| 40 | Oklahoma City University Oklahoma City | B | $122.3M | $122.0M | $384.4M |
| 41 | Kirkpatrick Family Affiliated Fund Ok City Community Foundation INC Oklahoma City | T | $115.8M | $19.3M | $403.0M |
| 42 | Regional Food Bank of Oklahoma Oklahoma City | K | $115.7M | $115.6M | $34.8M |
| 43 | Inasmuch Foundation Oklahoma City | T | $114.5M | $0 | $399.4M |
| 44 | Community Food Bank of Eastern Oklahoma INC Tulsa | K | $106.5M | $60.0M | $54.6M |
| 45 | National Rural Water Association Duncan | Z | $106.4M | $81.8M | $89.1M |
| 46 | Tri-county Electric Cooperative INC Hooker | Z | $103.8M | $103.8M | $359.2M |
| 47 | Asbjornson Foundation Tulsa | T | $101.6M | $0 | $101.2M |
| 48 | Creoks Mental Health Services Tulsa | F | $98.8M | $98.3M | $62.4M |
| 49 | Variety Care INC Oklahoma City | E | $97.8M | $97.8M | $88.0M |
| 50 | Butterfield Memorial Foundation Oklahoma City | E | $94.1M | $13.9M | $143.0M |