Nonprofits in Ontario, California
Nonprofits in Ontario, California. Browse 496 public nonprofit profiles. Review organization identities, available filing years, and their complete CharitySense profiles.
Location refers to headquarters recorded in public sources, not an organization’s service area. Classification describes its reported category and does not assess its effectiveness.
Nonprofit profiles
- Independencia Soccer League
EIN 933294552 · Headquarters: Ontario, CA, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Independent Order of Odd Fellows
EIN 330645876 · Headquarters: Ontario, CA, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Inland Christian Home
EIN 237304210 · Headquarters: ONTARIO, CA, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990
- Inland Christian Home
EIN 330509257 · Headquarters: Ontario, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990
- Inland Conservatory for the Performing Arts Inc
EIN 271799112 · Headquarters: ONTARIO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2017 · Primary form: IRS Form 990
- Inland Empire Chapter - Association of Certified Fraud Examiners
EIN 271148106 · Headquarters: Ontario, CA, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Inland Empire Economic Partnership Found Ation
EIN 330741793 · Headquarters: ONTARIO, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- Inland Empire Economic Partnership Inc
EIN 330189202 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Inland Empire Optometric Society
EIN 956143917 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Inland Empire Phenomenal Women Group
EIN 822468421 · Headquarters: ONTARIO, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Inland Empire Small Business Fdc
EIN 330949883 · Headquarters: ONTARIO, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ
- Inland Fair Housing and Mediation Board
EIN 953639912 · Headquarters: ONTARIO, CA, USA · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990
- Inland Smyrna Korean Church
EIN 330324881 · Headquarters: ontario, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Inland Valley Soccer League
EIN 472071238 · Headquarters: ONTARIO, CA, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Inland Valley Uplift Foundation
EIN 203009086 · Headquarters: ONTARIO, CA, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Inspire International Ministries
EIN 731690978 · Headquarters: Ontario, CA, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Institute of Divine Metaphysical Research of Pomona Inc
EIN 953792817 · Headquarters: Ontario, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Int'l Association of Heat & Frost Insulators and Allied Workers Lo Un No 5
EIN 950866519 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- International Association of Administrative Professionals
EIN 611568970 · Headquarters: Ontario, CA, US · International, Foreign Affairs & National Security · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- International Association of Lions Clubs
EIN 330729974 · Headquarters: Ontario, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- International Association of Plumbing and Mechanical Officials
EIN 951603192 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- International Institute of Arc Theory
EIN 263837896 · Headquarters: Ontario, CA, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- International Serum Industry Association
EIN 161765924 · Headquarters: Ontario, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990
- International Union UAW Local 230
EIN 951562048 · Headquarters: Ontario, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- International Water Initiative for Sanitation and Hygiene Inc
EIN 810960493 · Headquarters: ONTARIO, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Intime Ministries
EIN 200282584 · Headquarters: Ontario, CA, US · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Ironworkers Union Local 844 C/o David Osborne
EIN 300328608 · Headquarters: Ontario, CA, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990
- Jack and Jill Learning and Development Center
EIN 208851590 · Headquarters: ONTARIO, CA, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Jenneh Farms
EIN 841908334 · Headquarters: Ontario, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990
- Jenneh Foundation
EIN 453070602 · Headquarters: ONTARIO, CA, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- John Jack Pick Trust
EIN 900238983 · Headquarters: ONTARIO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- John P Previti Memorial Foundation
EIN 274256513 · Headquarters: ONTARIO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Joshua Theatre Productions Inc
EIN 330743442 · Headquarters: Ontario, CA, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Kahlis Kingdom
EIN 852729054 · Headquarters: ontario, CA, US · Youth Development · Latest available filing year: 2022 · Primary form: IRS Form 990-N
- Khalid E Parekh Foundation Inc
EIN 813289357 · Headquarters: ONTARIO, CA, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF
- Khloe Kares
EIN 812749828 · Headquarters: Ontario, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Kids Come First
EIN 330969025 · Headquarters: ONTARIO, CA, USA · Human Services · Latest available filing year: 2015 · Primary form: IRS Form 990
- Kinijit Los Angeles Support Anddevelopment Association For
EIN 205979436 · Headquarters: Ontario, CA, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Kiwanis Club of Ontario California Foundation
EIN 460609557 · Headquarters: Ontario, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Kiwanis International Inc
EIN 956048516 · Headquarters: Ontario, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Knights of Columbus
EIN 464911780 · Headquarters: Ontario, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Knights of Columbus Ontario Council 3672
EIN 237541089 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Korean Orthodontic Educational Foundation in USA
EIN 330287439 · Headquarters: ONTARIO, CA, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Korean Shofar Drum Ministry
EIN 830584665 · Headquarters: Ontario, CA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Krops
EIN 320441892 · Headquarters: ONTARIO, CA, US · Education · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- L E O an Agency for Community Assistance
EIN 330732412 · Headquarters: Ontario, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- La Verne College Law Center Alumni Association
EIN 953089555 · Headquarters: Ontario, CA, US · Education · Latest available filing year: 2008 · Primary form: IRS Form 990-N
- Latino Peace Officers Accociation Inland Empire Chapter Ca Inc
EIN 460569148 · Headquarters: ONTARIO, CA, US · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Learning Assistance for Muslim Progression
EIN 853004593 · Headquarters: ONTARIO, CA, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lenas Preschool Learning Center
EIN 262211942 · Headquarters: ONTARIO, CA, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N
- Levi H Dickey Elementary Pto
EIN 841812634 · Headquarters: ONTARIO, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Liberty Elementary Pto
EIN 731676562 · Headquarters: ONTARIO, CA, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Libertys Flame Inc
EIN 460482845 · Headquarters: Ontario, CA, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-N
- Lideres En Action
EIN 473347222 · Headquarters: ONTARIO, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990-N
- Life Lessons Learned
EIN 421753956 · Headquarters: ONTARIO, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Lifting Up the Name of Jesus L U N J
EIN 300231640 · Headquarters: Ontario, CA, US · Religion Related · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- Lights of Love Foundation
EIN 884268083 · Headquarters: Ontario, CA, US · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Lionsberg Inc
EIN 841827668 · Headquarters: Ontario, CA, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Little Ark Foundation
EIN 871007914 · Headquarters: Ontario, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Little League Baseball Inc
EIN 521245497 · Headquarters: Ontario, CA, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Little League Baseball Inc
EIN 953338000 · Headquarters: Ontario, CA, US · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Los Angeles Grace Lions Club Inc
EIN 871811138 · Headquarters: ONTARIO, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Love Hope & Friendship Ministry Inc
EIN 863656749 · Headquarters: Ontario, CA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- M I Part-nors Financial Services
EIN 814090944 · Headquarters: Ontario, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990
- Mad Mac
EIN 680385064 · Headquarters: Ontario, CA, US · Education · Latest available filing year: 2010 · Primary form: IRS Form 990-N
- Major Arena Soccer League
EIN 813373657 · Headquarters: Ontario, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Make Good Moves
EIN 841902657 · Headquarters: ONTARIO, CA, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Malaney Gordon Foundation
EIN 934166244 · Headquarters: ONTARIO, CA, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Malo Motivating Action Leadership Opportunity
EIN 824711809 · Headquarters: ONTARIO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990
- Mamysh Inc
EIN 451498212 · Headquarters: Ontario, CA, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Manos De Bendicion Inc
EIN 823079621 · Headquarters: ONTARIO, CA, USA · Religion Related · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ
- Mark H and Blanche M Harrington Foundation
EIN 956025594 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Marsell Wellness Center
EIN 883892382 · Headquarters: ONTARIO, CA, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ
- Mas De 15 Millones De Biblias Para Mexico Inc
EIN 205581770 · Headquarters: Ontario, CA, US · Religion Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N
- Matrixx Individualized Guidance Counseling Inc
EIN 900742309 · Headquarters: Ontario, CA, US · Education · Latest available filing year: 2013 · Primary form: IRS Form 990-N
- Matteo Cares
EIN 474910902 · Headquarters: ONTARIO, CA, US · Health Care · Latest available filing year: 2015 · Primary form: IRS Form 990-N
- May Love Live on Inc
EIN 994152739 · Headquarters: Ontario, CA, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Mayan Heritage Foundation Inc
EIN 923408014 · Headquarters: Ontario, CA, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Mental Enhancements for Neural Difficulties Services
EIN 331851972 · Headquarters: ONTARIO, CA, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Mi Red Legal
EIN 934847576 · Headquarters: Ontario, CA, US · Crime & Legal Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N
- Milk Producers Council
EIN 952019076 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990
- Millard Lester B Crut
EIN 956017552 · Headquarters: ONTARIO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF
- Millwright Labor-management Cooperation Committee
EIN 462929476 · Headquarters: ONTARIO, CA, USA · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990
- Ministerio Carcelario De Restauracion
EIN 205523251 · Headquarters: Ontario, CA, US · Religion Related · Latest available filing year: 2012 · Primary form: IRS Form 990-N
- Ministerios Cristianos El Shaddai
EIN 462120481 · Headquarters: ONTARIO, CA, USA · Religion Related · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ
- Mission Evangelica Pentecotes Monte De Santidad
EIN 263154865 · Headquarters: ONTARIO, CA, US · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Modern Woodmen of America
EIN 812840930 · Headquarters: ONTARIO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Modern Woodmen of America
EIN 812898074 · Headquarters: ONTARIO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Modern Woodmen of America
EIN 812911974 · Headquarters: ONTARIO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Modern Woodmen of America
EIN 814138870 · Headquarters: ONTARIO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Modern Woodmen of America
EIN 821702471 · Headquarters: ONTARIO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Modern Woodmen of America
EIN 912079657 · Headquarters: ONTARIO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N
- Moms Club
EIN 460489660 · Headquarters: ONTARIO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N
- Moms Club
EIN 474312081 · Headquarters: Ontario, CA, US · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990-N
- Moms Club
EIN 550881864 · Headquarters: Ontario, CA, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N
- Mount Zion Community Development Corporation
EIN 274917194 · Headquarters: Ontario, CA, US · Community Improvement & Capacity Building · Latest available filing year: 2014 · Primary form: IRS Form 990-N
- Mountain Top Worship Center
EIN 923862681 · Headquarters: ONTARIO, CA, USA · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ
- Mountain View Elementary School Pto
EIN 454203844 · Headquarters: Ontario, CA, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ
- Municipal Equipment Maintenance Assoc
EIN 954848684 · Headquarters: ONTARIO, CA, USA · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ
- Museum of History and Art Ontario
EIN 330722869 · Headquarters: ONTARIO, CA, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ