| 1 | Prime Healthcare Foundation INC | Health Care | $1.1B | $2.1B |
| 2 | Iapmo Research and Testing INC | Unclassified | $67.4M | $24.8M |
| 3 | Real Journey Academies INC | Education | $63.3M | $133.8M |
| 4 | Unicare Community Health Center INC | Education | $41.6M | $47.8M |
| 5 | International Association of Plumbing and Mechanical Officials | Unclassified | $32.4M | $43.8M |
| 6 | Benson House INC | Community Improvement & Capacity Building | $26.3M | $9.8M |
| 7 | Inland Southern California 211 | Philanthropy, Voluntarism & Grantmaking | $24.2M | $6.1M |
| 8 | Ontario Christian School Association | Education | $20.5M | $29.9M |
| 9 | Inland Christian Home INC | Human Services | $16.2M | $30.7M |
| 10 | Mark H & Blanche M Harrington Foundation | Unclassified | $10.9M | $19.9M |
| 11 | California Credit Union League | Unclassified | $9.2M | $35.7M |
| 12 | Building Bridges Foster Family Agency | Human Services | $9.1M | $3.5M |
| 13 | District Council of Ironworkers of the State of California & Vicinity | Unclassified | $8.6M | $26.2M |
| 14 | Anthesis Services | Employment | $8.3M | $5.6M |
| 15 | Ampac Tri-state Cdc INC | Community Improvement & Capacity Building | $7.2M | $18.7M |
| 16 | International Association of Heat & Frost Insulators & Allied Workers | Unclassified | $6.6M | $15.5M |
| 17 | West End Family Counseling Service | Mental Health & Crisis Intervention | $5.9M | $2.5M |
| 18 | Ontario Cementery Association | Unclassified | $5.6M | $28.2M |
| 19 | Greater Ontario Convention and Visitors Bureau | Community Improvement & Capacity Building | $5.6M | $371K |
| 20 | Scpga Foundation INC | Education | $5.4M | $1.5M |
| 21 | Western States Drywall Lathing Industry Lm Co-op Committee INC | Unclassified | $5.2M | $16.1M |
| 22 | Southern California Section of Pga | Unclassified | $4.4M | $14.5M |
| 23 | Sporting California INC | Recreation & Sports | $4.2M | $3.2M |
| 24 | Asbestos Workers Joint Apprenticeship Fund | Unclassified | $3.8M | $4.7M |
| 25 | Divine Truth Unity Fellowship Church | Religion-Related | $3.6M | $2.3M |
| 26 | Sickle Cell Disease Foundation of California | Diseases, Disorders & Medical Disciplines | $3.5M | $2.7M |
| 27 | Futuro Infantil Hispano | Unclassified | $3.5M | $3.1M |
| 28 | Real Journey Academies Foundation INC | Education | $3.5M | $76.6M |
| 29 | Ontario Christian School Foundation | Unclassified | $3.4M | $4.1M |
| 30 | Warehouse Worker Resource Center | Employment | $3.0M | $2.9M |
| 31 | Humane Society of the Chaffey Community INC | Animal-Related | $2.1M | $2.3M |
| 32 | Western Cuna Management School | Education | $2.1M | $1.6M |
| 33 | Inland Fair Housing and Mediation Board | Crime & Legal-Related | $1.7M | $1.6M |
| 34 | Aircondting & Refrgration Cntrctrs Assoc & the Mechancl Cntrctrs Asso | Community Improvement & Capacity Building | $1.6M | $2.7M |
| 35 | Orion Schools | Education | $1.6M | $86K |
| 36 | United Brotherhood of Carpenters & Joiners of America | Unclassified | $1.6M | $196K |
| 37 | Ontario Professional Firefighters Local 1430 Retiree Healthcare Savi | Mutual & Membership Benefit | $1.3M | $8.7M |
| 38 | Summer Place INC | Human Services | $1.3M | $1.6M |
| 39 | New Creation Behavioral Healthcare Foundation | Mental Health & Crisis Intervention | $1.2M | $450K |
| 40 | Unidos Por la Musica | Human Services | $1.2M | $690K |
| 41 | Cardenas Markets Foundation | Education | $1.1M | $769K |
| 42 | Major Arena Soccer League | Unclassified | $999K | $84K |
| 43 | D K Kim Foundation INC | Philanthropy, Voluntarism & Grantmaking | $987K | $1.3M |
| 44 | Ontario Police Officers Association Incorporated | Unclassified | $838K | $1.4M |
| 45 | International Association of Fire Fighters | Unclassified | $771K | $773K |
| 46 | Benevolent & Protective Order of Elks of the USA | Unclassified | $750K | $700K |
| 47 | Club West Sports Academy INC | Recreation & Sports | $693K | $106K |
| 48 | Richard Myles Johnson Foundation | Education | $657K | $683K |
| 49 | John Jack Pick Trust 1015028906 | Philanthropy, Voluntarism & Grantmaking | $657K | $1.3M |
| 50 | Inland Empire United Way | Philanthropy, Voluntarism & Grantmaking | $655K | $2.8M |
| 51 | Khalid E Parekh Foundation INC | Philanthropy, Voluntarism & Grantmaking | $625K | $739K |
| 52 | Milk Producers Council | Unclassified | $611K | $317K |
| 53 | Lester B Millard Testamentary Trust | Unclassified | $565K | $1.8M |
| 54 | Shops at Dos Lagos Foundation | Human Services | $536K | $4K |
| 55 | West Coast Percussion Alliance | Arts, Culture & Humanities | $515K | $235K |
| 56 | Millwright Labor-management Cooperation Committee | Mutual & Membership Benefit | $510K | $1.8M |
| 57 | Downtown Ontario Improvement Association | Community Improvement & Capacity Building | $482K | $570K |
| 58 | Huerta Del Valle | Food, Agriculture & Nutrition | $463K | $313K |
| 59 | Hhmc Foundation | Philanthropy, Voluntarism & Grantmaking | $440K | $346K |
| 60 | American Legion | Unclassified | $439K | $1.9M |
| 61 | Above the Rest Academy | Human Services | $429K | $318K |
| 62 | International Serum Industry Association | Community Improvement & Capacity Building | $420K | $325K |
| 63 | Nevada Credit Union League INC | Unclassified | $395K | $926K |
| 64 | Malo Motivating Action Leadership Opportunity | Arts, Culture & Humanities | $376K | $551K |
| 65 | Chaffey High School Alumni Association | Unclassified | $357K | $438K |
| 66 | Hope Reigns Charity Foundation INC | Philanthropy, Voluntarism & Grantmaking | $311K | $159K |
| 67 | Frontsight Military Ministry | Human Services | $310K | $40K |
| 68 | Ontario Chamber of Commerce | Unclassified | $302K | $38K |
| 69 | Ontario Montclair Teachers Association | Unclassified | $281K | $526K |
| 70 | Ontario-montclair Schools Foundation | Education | $278K | $1.6M |
| 71 | California Teachers Association | Unclassified | $266K | $372K |
| 72 | Hmc Designing Futures Foundation | Education | $247K | $1.7M |
| 73 | Jenneh Farms | Human Services | $232K | $500K |
| 74 | Dignity Group | Health Care | $230K | $217K |
| 75 | International Water Initiative for Sanitation and Hygiene INC | Environment | $228K | $224K |
| 76 | Arcadian Shores Manor | Unclassified | $217K | $23K |
| 77 | Wirsiys Rays of Hope Foundation | Philanthropy, Voluntarism & Grantmaking | $217K | $4K |
| 78 | Alice Colby Wheeler Scholarship Fund 1020003308 | Education | $200K | $602K |
| 79 | Ontario Fastpitch Softball Association | Recreation & Sports | $198K | $22K |
| 80 | Ontario Professional Firefighters Foundation | Employment | $196K | $198K |
| 81 | Parent Booster USA INC | Education | $189K | $56K |
| 82 | Dream Builders INC | Youth Development | $189K | $120K |
| 83 | Route 66 Reunion | Recreation & Sports | $187K | $21K |
| 84 | Ontario Police Management Group INC | Unclassified | $183K | $390K |
| 85 | Mt Zion Baptist Church | Religion-Related | $170K | $6K |
| 86 | Pasadena Area Opera Trust | Arts, Culture & Humanities | $168K | $457K |
| 87 | Society for Vector Ecology | Environment | $167K | $499K |
| 88 | International Union United Auto Aerospace & Agricultural Workers | Unclassified | $159K | $130K |
| 89 | Inland Valley Soccer League INC | Recreation & Sports | $158K | $7K |
| 90 | Little League Baseball INC | Unclassified | $154K | $91K |
| 91 | Youthpower Community Solutions | Education | $151K | $2K |
| 92 | Inland Christian Home Foundation INC | Human Services | $148K | $2.7M |
| 93 | Southern California Residential Drywall Contract Adm Comm INC | Unclassified | $146K | $2.8M |
| 94 | Celtic Soccer League | Recreation & Sports | $146K | $59K |
| 95 | Chaffey Community Art Association | Unclassified | $135K | $83K |
| 96 | Hosanna International Festivalsfoundation | Recreation & Sports | $132K | $1K |
| 97 | Hua Xia Evangelical Seminary | Education | $121K | $158K |
| 98 | Iglesia la Nueva Getsemani | Religion-Related | $118K | $368K |
| 99 | Construction Financial Management Association | Unclassified | $115K | $231K |
| 100 | Ie Ceem Incorporated | Education | $114K | $11K |