| Oklahoma Mental Health Council | Oklahoma City | F32Z Mental Health & Crisis Intervention | $73.3M | 12 |
| NATIONAL RURAL WATER ASSOCIATION | Duncan | — | $71.8M | 7 |
| Oklahoma Christian University | Oklahoma City | B420 Education | $70.4M | 11 |
| INDIAN ELECTRIC COOPERATIVE INC | Cleveland | — | $70.2M | 15 |
| COMMUNITY ACTION PROJECT OF TULSA COUNTY INC | Tulsa | P20Z Human Services | $67.9M | 8 |
| CENTRAL OKLAHOMA FAMILY MEDICAL CENTER INC | Konawa | E21Z Health Care | $65.5M | 9 |
| FOLDS OF HONOR FOUNDATION | Owasso | B82 Education | $65.5M | 10 |
| SOUTHERN NAZARENE UNIVERSITY | Bethany | B430 Education | $64.9M | 4 |
| Museum of the Bible | Oklahoma City | — | $62.8M | 13 |
| STIGLER HEALTH & WELLNESS CENTER INC | Stigler | E30 Health Care | $60M | 8 |
| COMMUNITY FOOD BANK OF EASTERN OKLAHOMA INC | Tulsa | K31Z Food, Agriculture & Nutrition | $60M | 8 |
| RURAL ELECTRIC COOPERATIVE INC | Lindsay | — | $59.3M | 16 |
| CHOCTAW ELECTRIC COOPERATIVE INC | Hugo | — | $59.3M | 16 |
| PIPELINE INDUSTRY BENEFIT FUND | Tulsa | — | $58.7M | 7 |
| SANTA FE SOUTH SCHOOLS INC | Oklahoma City | B29 Education | $58.2M | 1 |
| DEAN MCGEE EYE INSTITUTE | Oklahoma City | H41Z Medical Research | $57.4M | 9 |
| Farmers Union Hospital Association | Elk City | E83Z Health Care | $56.1M | 10 |
| WILLIAM BARRY LOVE FOUNDATION INC | Muskogee | T20 Philanthropy, Voluntarism & Grantmaking Foundations | $55M | 1 |
| GOODWILL INDUSTRIES OF CENTRAL OKLAHOMA INC | Oklahoma City | J32Z Employment | $54.6M | 10 |
| KIAMICHI ELECTRIC COOPERATIVE INC | Wilburton | — | $52M | 14 |
| Laureate Psychiatric Clinic and HospitalInc | Tulsa | F310 Mental Health & Crisis Intervention | $52M | 12 |
| THE LORD SEES FOUNDATION | Tulsa | T20 Philanthropy, Voluntarism & Grantmaking Foundations | $51.5M | 5 |
| YOUNG MEN'S CHRISTIAN ASSOCIATION OF GREATER OKLAHOMA CITY | Oklahoma City | P270 Human Services | $50.7M | 5 |
| Red River Valley Rural Electric Association | Marietta | — | $48.7M | 16 |
| MONTEREAU INC | Tulsa | L22 Housing & Shelter | $48.5M | 5 |
| Cancer Centers of Southwest Oklahoma | Lawton | E24 Health Care | $48.3M | 0 |
| J A Leta M Chapman TR 486002AC2 | Tulsa | T900 Philanthropy, Voluntarism & Grantmaking Foundations | $46.7M | 1 |
| NOBLE RESEARCH INSTITUTE LLC | Ardmore | B82 Education | $45.8M | 16 |
| OKLAHOMAS CREDIT UNION | Oklahoma City | — | $43.5M | 8 |
| SOUTHEASTERN ELECTRIC COOPERATIVE INC | Durant | — | $42.9M | 13 |
| LIFESHARE TRANSPLANT DONOR SERVICES OF OKLAHOMA INC | Oklahoma City | E65Z Health Care | $42.8M | 8 |
| CENTRAL OKLAHOMA UNITED METHODIST RETIREMENT FACILITY INC | Oklahoma City | P75Z Human Services | $42.7M | 9 |
| INTEGRIS Health Ponca City Hospital Inc | Oklahoma City | E22 Health Care | $42.5M | 4 |
| KAY ELECTRIC COOPERATIVE INC | Blackwell | — | $42M | 17 |
| NORTHWESTERN ELECTRIC COOPERATIVE INC | Woodward | — | $41M | 17 |
| DOVE SCHOOLS INC | Oklahoma City | B29 Education | $41M | 1 |
| Lighthouse Behavioral Wellness Centers | Ardmore | F33Z Mental Health & Crisis Intervention | $40.6M | 14 |
| Mid-America Christian University Inc | Oklahoma City | — | $38.8M | 11 |
| COMMUNITIES FOUNDATION OF OKLAHOMA | Oklahoma City | T30J Philanthropy, Voluntarism & Grantmaking Foundations | $38.5M | 2 |
| OKLAHOMA CENTRAL CREDIT UNION | Tulsa | — | $38.2M | 11 |
| KI BOIS COMMUNITY ACTION FOUNDATION | Stigler | P20Z Human Services | $37.7M | 3 |
| INDIAN HEALTH CARE RESOURCE CENTER INC | Tulsa | E21Z Health Care | $37.7M | 10 |
| INDEPENDENT OPPORTUNTIES INC OF OKLAHOMA | Tulsa | Z99Z Unknown | $36.4M | 4 |
| North Oklahoma County Mental Health Center | Oklahoma City | F30Z Mental Health & Crisis Intervention | $36M | 8 |
| COWBOY ATHLETICS INC | Stillwater | N40 Recreation & Sports | $35.8M | 8 |
| GOODWILL INDUSTRIES OF TULSA INC | Tulsa | J32Z Employment | $35.6M | 8 |
| OKLAHOMA CITY FIRE FIGHTERS HEALTH AND WELFARE FUND | Oklahoma City | Y43 Mutual & Membership Benefit | $32.3M | 0 |
| OKLAHOMA WESLEYAN UNIVERSITY | Bartlesville | B420 Education | $32.2M | 7 |
| NEWVIEW OKLAHOMA INC | Oklahoma City | J330 Employment | $31.4M | 7 |
| JOSEPH W CRAFT III FOUNDATION | Tulsa | T22Z Philanthropy, Voluntarism & Grantmaking Foundations | $30.4M | 0 |
