Nonprofits in Arizona

Nonprofits in Arizona. Browse 36,477 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

  1. Operation Thrive

    EIN 991646892 · Headquarters: Chandler, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Operation Walk International

    EIN 471624559 · Headquarters: Scottsdale, AZ, USA · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Operation Warrior Junction Opwj

    EIN 453009085 · Headquarters: Prescott, AZ, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Operation Welcome Home Az Inc

    EIN 463409273 · Headquarters: Gilbert, AZ, US · Public & Societal Benefit · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  5. Operation World Without Cancer

    EIN 334640047 · Headquarters: Scottsdale, AZ, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Operational Medicine & Austere Supp Ort

    EIN 394480361 · Headquarters: Phoenix, AZ, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Operations Peace Project

    EIN 061638183 · Headquarters: MESA, AZ, US · Housing & Shelter · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  8. Operative Plaster's & Cement Masons Local Union 394

    EIN 860043417 · Headquarters: PHOENIX, AZ, USA · Employment · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  9. Operative Plasterers and Cement Masons Local Union 394

    EIN 823878587 · Headquarters: Phoenix, AZ, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  10. Operator Algebras Mentor Network

    EIN 874271818 · Headquarters: Prescott, AZ, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Opioid Foundation Inc

    EIN 823871711 · Headquarters: Waddell, AZ, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Oppong Family Foundation Fund

    EIN 994594349 · Headquarters: CHANDLER, AZ, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Opportunities & Role Models for Youth

    EIN 861004201 · Headquarters: Sedona, AZ, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  14. Opportunity Arizona

    EIN 843103154 · Headquarters: PHOENIX, AZ, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Opportunity for a Better Life

    EIN 990843884 · Headquarters: Tucson, AZ, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Opportunity Hack Inc

    EIN 845113049 · Headquarters: Phoenix, AZ, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Opportunity Knocks Community Learning Center Inc

    EIN 824663107 · Headquarters: FLORENCE, AZ, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990

  18. Opportunity Through Entrepreneurship Foundation

    EIN 203779020 · Headquarters: PHOENIX, AZ, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  19. Opportunity4kids

    EIN 463403537 · Headquarters: Scottsdale, AZ, USA · Youth Development · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Optimist Club of Yavapai County Inc

    EIN 352689729 · Headquarters: Prescott Valley, AZ, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Optimist International

    EIN 237106519 · Headquarters: Phoenix, AZ, US · Youth Development · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  22. Optimist International

    EIN 237396534 · Headquarters: GLENDALE, AZ, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  23. Optimist International

    EIN 364026280 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Optimist International

    EIN 460517111 · Headquarters: TUCSON, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Optimist International

    EIN 814567470 · Headquarters: San Luis, AZ, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  26. Optimist International

    EIN 860168203 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  27. Optimist International

    EIN 860188258 · Headquarters: Tucson, AZ, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  28. Optimist International

    EIN 860214721 · Headquarters: tucson, AZ, US · Youth Development · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  29. Optimist International

    EIN 860215019 · Headquarters: Tempe, AZ, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  30. Optimist International

    EIN 860215688 · Headquarters: Casa Grande, AZ, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  31. Optimist International

    EIN 860495255 · Headquarters: Maricopa, AZ, US · Youth Development · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  32. Optimist International

    EIN 860528776 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  33. Optimist International

    EIN 860551435 · Headquarters: Sahuarita, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Optimist International

    EIN 860556431 · Headquarters: Mesa, AZ, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  35. Optimist International

    EIN 860606647 · Headquarters: Sierra Vista, AZ, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  36. Optimist International

    EIN 860725755 · Headquarters: Yuma, AZ, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  37. Optimist International

    EIN 860833999 · Headquarters: Payson, AZ, US · Youth Development · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  38. Optimist International

    EIN 860894492 · Headquarters: Golden Valley, AZ, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  39. Optimist International

    EIN 860931593 · Headquarters: Yuma, AZ, US · Youth Development · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  40. Optimist International

    EIN 861046585 · Headquarters: Tucson, AZ, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  41. Optimist International

    EIN 866052595 · Headquarters: TUCSON, AZ, US · Youth Development · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  42. Optimist International

    EIN 866053090 · Headquarters: Yuma, AZ, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  43. Optimist International

    EIN 866053091 · Headquarters: Anthem, AZ, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  44. Optimist International

    EIN 866054488 · Headquarters: SOMERTON, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Optimist International

    EIN 866056715 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Optimist International

    EIN 900085273 · Headquarters: Florence, AZ, US · Youth Development · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  47. Optimist International

    EIN 900110837 · Headquarters: Apache Junction, AZ, US · Youth Development · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  48. Optimist International

    EIN 900191591 · Headquarters: SUPERIOR, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Optimist International

    EIN 900214945 · Headquarters: Tucson, AZ, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  50. Optimist International

    EIN 900246427 · Headquarters: TUCSON, AZ, US · Arts, Culture & Humanities · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  51. Optimist International

    EIN 900246839 · Headquarters: Tucson, AZ, US · Youth Development · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  52. Optimist International

    EIN 900246841 · Headquarters: Tucson, AZ, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  53. Optimist International

    EIN 900249436 · Headquarters: Yuma, AZ, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  54. Optimist International

    EIN 900251383 · Headquarters: Tucson, AZ, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  55. Optimist International

    EIN 900369543 · Headquarters: Lake Havasu City, AZ, US · Youth Development · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  56. Optimist International

    EIN 900505009 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Optimist International

    EIN 900515667 · Headquarters: Cortaro, AZ, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  58. Optimist International

    EIN 900590516 · Headquarters: Tucson, AZ, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  59. Optimist International

    EIN 900653513 · Headquarters: Tucson, AZ, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  60. Optimist International

    EIN 900786194 · Headquarters: PAYSON, AZ, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  61. Optimist International

    EIN 900881505 · Headquarters: Prescott, AZ, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  62. Optimist International East Valley Optimist Club of Yuma

    EIN 900314694 · Headquarters: Yuma, AZ, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Options Inc

    EIN 832253113 · Headquarters: PEORIA, AZ, US · Public & Societal Benefit · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  64. Or Adam Congregation for Humanistic Judaism

    EIN 860782056 · Headquarters: Scottsdale, AZ, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. OR Rubie Foundation

    EIN 237416735 · Headquarters: Rio Verde, AZ, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-PF

  66. Oracle Animal Rescue & Rehabilitation Inc

    EIN 841906997 · Headquarters: Oracle, AZ, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  67. Oracle Community Center

    EIN 850373557 · Headquarters: Oracle, AZ, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Oracle Community Learning Garden Inc

    EIN 882639109 · Headquarters: Oracle, AZ, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Oracle Conservancy Land Trust Inc

    EIN 860958156 · Headquarters: Oracle, AZ, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  70. Oracle Heights Recreation Association

    EIN 237081238 · Headquarters: TUCSON, AZ, USA · Recreation & Sports · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  71. Oracle Historical Society Inc

    EIN 860340359 · Headquarters: Oracle, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Oracle Piano Society

    EIN 455577678 · Headquarters: TEMPE, AZ, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Oracle Public Library

    EIN 866053433 · Headquarters: ORACLE, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. Oracle Schools Foundation

    EIN 473726893 · Headquarters: Catalina, AZ, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. Oracle Village Outreach

    EIN 831187176 · Headquarters: oracle, AZ, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  76. Oracle Womens Network

    EIN 273644095 · Headquarters: Oracle, AZ, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  77. Oral Educational Opportunities for the Hearing Impaired

    EIN 860834633 · Headquarters: PHOENIX, AZ, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Oral Health Primer

    EIN 934574790 · Headquarters: Scottsdale, AZ, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  79. Orange County Mgma

    EIN 263568369 · Headquarters: Phoenix, AZ, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  80. Orange Grove Middle School Family Faculty Association

    EIN 742421188 · Headquarters: Tucson, AZ, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Orange Theatre Group

    EIN 273203058 · Headquarters: Phoenix, AZ, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  82. Orb Relief Trust

    EIN 686199251 · Headquarters: MESA, AZ, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  83. Orca Swim Team

    EIN 262437763 · Headquarters: Tucson, AZ, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Orchard Africa

    EIN 161731124 · Headquarters: Gilbert, AZ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  85. Orchard Community Learning Service

    EIN 275107074 · Headquarters: Phoenix, AZ, USA · Food, Agriculture & Nutrition · Latest available filing year: 2025 · Primary form: IRS Form 990

  86. Orchestra Northern Arizona

    EIN 271700572 · Headquarters: FLAGSTAFF, AZ, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Order Chaos Theater Inc

    EIN 921261152 · Headquarters: Tolleson, AZ, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  88. Order Kafou

    EIN 873628548 · Headquarters: Tucson, AZ, US · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  89. Order of Ahepa

    EIN 845043391 · Headquarters: Sedona, AZ, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  90. Order of Amaranth Inc

    EIN 237614213 · Headquarters: TUCSON, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Order of Daedalians-old Pueblo Flight No 12

    EIN 942933311 · Headquarters: Green Valley, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Order of Franciscan Hermits

    EIN 880948305 · Headquarters: Quartzsite, AZ, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Order of the Amaranth Inc

    EIN 202399566 · Headquarters: Flagstaff, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Order of the Amaranth Inc

    EIN 237614552 · Headquarters: Flagstaff, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Order of the Amaranth Inc

    EIN 860376473 · Headquarters: Sierra Vista, AZ, US · Crime & Legal Related · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  96. Order of the Amaranth Inc

    EIN 860901794 · Headquarters: Oro Valley, AZ, US · Mutual & Membership Benefit · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  97. Order of the Amaranth Inc Supreme Council

    EIN 237614208 · Headquarters: Phoenix, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Order of the Amaranth Inc Supreme Council

    EIN 237614209 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Order of the Amaranth Inc Supreme Council

    EIN 237614210 · Headquarters: Scottsdale, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Order of the Amaranth Inc Supreme Council

    EIN 237614215 · Headquarters: Glendale, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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