Unknown & Unclassified nonprofits

Unknown & Unclassified nonprofits. Browse 557,756 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. Omega Psi Phi Theta Upsilon

    EIN 274897878 · Headquarters: Texarkana, TX, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  2. Omega School Inc

    EIN 391166888 · Headquarters: MADISON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. Omega Star-child Seminars Aka Light Omega

    EIN 223070052 · Headquarters: AMHERST, MA, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  4. Omega Tau Sigma

    EIN 821384071 · Headquarters: Blacksburg, VA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  5. Omega Teaching Network Inc

    EIN 010778558 · Headquarters: Valdosta, GA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  6. Omega Theta Xi Associations

    EIN 916184957 · Headquarters: GREENACRES, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Omega Uplift Foundation Inc

    EIN 132939237 · Headquarters: HIGHLAND FLS, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Omega Upsilon

    EIN 936031249 · Headquarters: Portland, OR, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  9. Omega Xi House Conporation of Kappa Delta Sorority

    EIN 311434160 · Headquarters: Florence, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Omega Xi of Kappa Delta Education Fund

    EIN 310913807 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Omega Zeta Chapter Chi Sigma Iota International Honor Society

    EIN 470967671 · Headquarters: MEAD, CO, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  12. Omega4mbc Foundation Inc

    EIN 862556434 · Headquarters: AUSTELL, GA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  13. Omegabots Robotic Team

    EIN 814047247 · Headquarters: NORTHVILLE, MI, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  14. Omege Omega

    EIN 473540323 · Headquarters: Cape Girardeau, MO, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  15. Omena Presbyterian Church

    EIN 383488862 · Headquarters: Omena, MI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  16. Omena Traverse Yacht Club

    EIN 381641213 · Headquarters: OMENA, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Omep U S National Committee

    EIN 526061431 · Headquarters: St.lLzare, KS, CA · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  18. Omeric Rehabilitation Inc

    EIN 237107946 · Headquarters: North Hills, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  19. Omg-wtf Action

    EIN 832251946 · Headquarters: VAN NUYS, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  20. Omicron Alumni Association

    EIN 376051476 · Headquarters: SAVOY, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Omicron Alumni Association

    EIN 814440748 · Headquarters: ITHACA, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Omicron Association Inc

    EIN 208860589 · Headquarters: State College, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  23. Omicron Association of Theta Xi

    EIN 232137337 · Headquarters: PARKTON, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  24. Omicron Beta Chapter of Chi Omega

    EIN 546069358 · Headquarters: Williamsburg, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. Omicron Chapter Alumni Association of Phi Iota Alpha Fraternity Inc

    EIN 471709295 · Headquarters: Brooklyn, NY, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  26. Omicron Chapter of Alpha Chi Omega Fraternity Inc

    EIN 486117942 · Headquarters: INDIANAPOLIS, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Omicron Chapter of Delta Phi Lambda Sorority Inc

    EIN 834611499 · Headquarters: Pensacola, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Omicron Chapter of Phi Gamma Delta

    EIN 546065124 · Headquarters: Charlottesville, VA, USA · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990

  29. Omicron Delta Chapter 362 Uop Nursng Honor Society

    EIN 911935304 · Headquarters: SCOTTSDALE, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Omicron Delta Kappa

    EIN 208960476 · Headquarters: Fayette, MO, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  31. Omicron Delta Kappa - Ung Circle

    EIN 364709348 · Headquarters: Dahlonega, GA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  32. Omicron Deuteron Association Attn Tony Zimmerman

    EIN 316042438 · Headquarters: FREMONT, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Omicron Deuteron Charge of the Theta Delta Chi Fraternity

    EIN 026012541 · Headquarters: HANOVER, NH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Omicron Deuteron House Corporation of Kappa Kappa Gamma Fraternity

    EIN 421355884 · Headquarters: Dublin, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Omicron Educational Foundation

    EIN 251500096 · Headquarters: State College, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Omicron Epsilon- Zeta Phi Beta Sorority Inc

    EIN 994864237 · Headquarters: Ewing, NJ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Omicron Iota of Westchester County Inc

    EIN 133694498 · Headquarters: Scarsdale, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Omicron Kappa Building Corporation of Chi Omega

    EIN 942352842 · Headquarters: DAVIS, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Omicron Kappa Chapter of Chi Omega

    EIN 942353210 · Headquarters: Davis, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Omicron Kappa Upsilon Honorary Dental Society

    EIN 202034788 · Headquarters: Henderson, NV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Omicron Kappa Upsilon Honorary Dental Society

    EIN 237125209 · Headquarters: PHILADELPHIA, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  42. Omicron Kappa Upsilon Honorary Dental Society

    EIN 237132974 · Headquarters: Dallas, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Omicron Kappa Upsilon Honorary Dental Society

    EIN 237134585 · Headquarters: Omaha, NE, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  44. Omicron Kappa Upsilon Honorary Dental Society

    EIN 237134586 · Headquarters: Milwaukee, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Omicron Kappa Upsilon Honorary Dental Society

    EIN 237137618 · Headquarters: Minneapolis, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Omicron Kappa Upsilon Honorary Dental Society

    EIN 272628219 · Headquarters: Memphis, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Omicron Kappa Upsilon Honorary Dental Society

    EIN 311080819 · Headquarters: Columbus, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Omicron Kappa Upsilon Honorary Dental Society

    EIN 364671875 · Headquarters: MONROEVILLE, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Omicron Kappa Upsilon Honorary Dental Society

    EIN 631244984 · Headquarters: Birmingham, AL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  50. Omicron Kappa Upsilon Honorary Dental Society Supreme

    EIN 237133944 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Omicron Kappa Upsilon Honorary Dental Society Supreme

    EIN 461523599 · Headquarters: Glendale, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Omicron Kappa Upsilon Sigma Chapter

    EIN 237156597 · Headquarters: Chicago, IL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  53. Omicron Kappa Upsilon-honorary Dental Society

    EIN 237137753 · Headquarters: Kansas City, MO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Omicron Kappa Upsilon-honorary Dental Society

    EIN 237140266 · Headquarters: Iowa City, IA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  55. Omicron Kappa Upsilon-honorary Dental Society

    EIN 237140518 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Omicron Kappa Upsilon-honorary Dental Society

    EIN 237151769 · Headquarters: Louisville, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Omicron Kappa Upsilon-honorary Dental Society

    EIN 237156869 · Headquarters: CLEVELAND, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Omicron Kappa Upsilon-honorary Dental Society

    EIN 237347887 · Headquarters: Alton, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Omicron Kappa Upsilon-honorary Dental Society

    EIN 237451601 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Omicron Kappa Upsilon-honorary Dental Society

    EIN 462577545 · Headquarters: Pomona, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Omicron Kappa Upsilon-honorary Dental Society

    EIN 510225752 · Headquarters: Jackson, MS, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  62. Omicron Kappa Upsilon-honorary Dental Society

    EIN 930655590 · Headquarters: Portland, OR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Omicron Lambda Chapter Alpha Phi Alpha Education Foundation

    EIN 582089794 · Headquarters: Birmingham, AL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  64. Omicron Lambda Chapter of Phi Beta Sigma Fraternity Incorporated

    EIN 464902654 · Headquarters: Clemson, SC, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  65. Omicron Nu Nu Chapter

    EIN 874513883 · Headquarters: Round Rock, TX, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  66. Omicron of Maryland

    EIN 472858013 · Headquarters: Elizabeth City, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Omicron Omicron Chapter

    EIN 562376534 · Headquarters: Martinsville, IN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  68. Omicron Omicron Chapter of Kappa Alpha Psi Fraternity

    EIN 933125940 · Headquarters: Ridgeland, MS, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Omicron Pi Omicron Fraternity

    EIN 150547352 · Headquarters: Potsdam, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Omicron Theta Chi Sorority

    EIN 371657167 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  71. Omicron Theta Inc

    EIN 956054227 · Headquarters: SAN JUAN CAPISTRANO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Omicron Theta of Chi Omega Fraternity

    EIN 756059986 · Headquarters: Wichita Falls, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  73. Omicron Zeta Chapter - Chi Omega Frat House Corp

    EIN 710588670 · Headquarters: State University, AR, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. Omicron Zeta Charitable and Educational Fund Inc

    EIN 311631978 · Headquarters: Garner, NC, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. Omicron-rho Alumni Chapter of the Kappa Sigma Fraternity

    EIN 992758390 · Headquarters: Washington Township, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. Omikron Alumni Association

    EIN 990787977 · Headquarters: Rock Hill, SC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Omikron of Kappa Sigma Fraternity

    EIN 933005424 · Headquarters: Emory, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Omimeo Mime Theatre Inc

    EIN 591728244 · Headquarters: Charlotte, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Omni Centre for Public Media Inc

    EIN 351687687 · Headquarters: Carmel, IN, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  80. OMNI Community Credit Union

    EIN 381401260 · Headquarters: Battle Creek, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Omni Ensemble Ltd

    EIN 112706989 · Headquarters: BROOKLYN, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Omni Family Events Fund

    EIN 953928591 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  83. Omni Holding Llc

    EIN 208792478 · Headquarters: PHILADELPHIA, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. Omni Institute

    EIN 841307563 · Headquarters: DENVER, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Omni Medical Services Inc

    EIN 352656855 · Headquarters: Ypsilanti, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Omni Montessori School

    EIN 561466119 · Headquarters: Charlotte, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. OMNI Sports

    EIN 852041994 · Headquarters: Sacramento, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Omni Temple

    EIN 335057810 · Headquarters: Willis, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Omni Youth Programs

    EIN 942678792 · Headquarters: SACRAMENTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Omni Youth Services Incorporated

    EIN 362777027 · Headquarters: BUFFALO GROVE, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Omnia Institute for Contextual Leadership

    EIN 362887286 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  92. Omnibus Prosperitas Corporation Inc

    EIN 994198158 · Headquarters: NEW YORK, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Omnibus Society of America

    EIN 366112688 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Omnificent Community Inc

    EIN 990738294 · Headquarters: PRESCOTT, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Omnigate Love Family Foundation

    EIN 473660034 · Headquarters: Lumberton, NJ, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  96. Omnis Foundation

    EIN 271408825 · Headquarters: Smyrna, GA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  97. Omohundro Institute of Early American History & Culture

    EIN 541045628 · Headquarters: WILLIAMSBURG, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Omotesenke Domonkai Northern California Region

    EIN 941747096 · Headquarters: SAN FRANCISCO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. Ompi Petition Committee

    EIN 452900124 · Headquarters: Portland, OR, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  100. Omro Education Association

    EIN 391706995 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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