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. Pi Mu Epsilon Inc

    EIN 912076671 · Headquarters: GREENVILLE, SC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Pi Mu Epsilon Inc

    EIN 912076673 · Headquarters: CONWAY, SC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Pi Mu Epsilon Inc

    EIN 912076750 · Headquarters: KNOXVILLE, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Pi Mu Epsilon Inc

    EIN 912076751 · Headquarters: FORTH WORTH, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Pi Mu Epsilon Inc

    EIN 912076757 · Headquarters: BEAUMONT, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Pi Mu Epsilon Inc

    EIN 912076772 · Headquarters: HUNTSVILLE, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Pi Mu Epsilon Inc

    EIN 912076777 · Headquarters: ARLINGTON, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Pi Mu Epsilon Inc

    EIN 912076780 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Pi Mu Epsilon Inc

    EIN 912076783 · Headquarters: SAN ANTONIO, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Pi Mu Epsilon Inc

    EIN 912076785 · Headquarters: WACO, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Pi Mu Epsilon Inc

    EIN 912076788 · Headquarters: BLACKSBURG, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Pi Mu Epsilon Inc

    EIN 912076793 · Headquarters: DE PERE, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Pi Mu Epsilon Inc

    EIN 931302880 · Headquarters: PORTLAND, OR, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Pi Mu Epsilon Inc

    EIN 956146403 · Headquarters: LOS ANGELES, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Pi Mu Epsilon Inc

    EIN 956146404 · Headquarters: CLAREMONT, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Pi Mu Nu Chapter Omega Psi Phi

    EIN 874277905 · Headquarters: Fort Valley, GA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  17. Pi Nu Nu Chapter Omega Psi Phi

    EIN 881894704 · Headquarters: Covington, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Pi of Alpha Epsilon Phi House Corp

    EIN 386068622 · Headquarters: LIVONIA, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Pi Omega Foundation Inc

    EIN 521354108 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  20. Pi Omega Pi Gamma Phi Chapter

    EIN 272699154 · Headquarters: Greensboro, NC, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  21. Pi Omicron

    EIN 883006792 · Headquarters: Atlanta, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Pi Phi Gamma House Corporation

    EIN 846039185 · Headquarters: CENTENNIAL, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Pi Point Tutoring

    EIN 422990037 · Headquarters: Sammamish, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Pi Shoppe Tutoring Service Inc

    EIN 842747668 · Headquarters: Taylor, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Pi Sigma Alpha - Ung Chapter

    EIN 611659975 · Headquarters: Oakwood, GA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Pi Sigma Alpha Honor Society

    EIN 473559132 · Headquarters: Charleston, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  27. Pi Sigma Elder Chapter Inc

    EIN 240856255 · Headquarters: HADDONFIELD, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Pi Sigma Epsilon

    EIN 272452195 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  29. Pi Sigma Epsilon

    EIN 454155371 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  30. Pi Sigma Epsilon - Theta Beta at George Washington

    EIN 332994388 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Pi Sigma Epsilon - Zeta Theta Chapter

    EIN 453250681 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  32. Pi Sigma Epsilon Fraternity

    EIN 464970744 · Headquarters: Marshall, TX, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  33. Pi Sigma Epsilon Inc

    EIN 270089715 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Pi Sigma Epsilon Inc

    EIN 271214029 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Pi Sigma Epsilon Inc

    EIN 273035807 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  36. Pi Sigma Epsilon Inc

    EIN 273264930 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Pi Sigma Epsilon Inc

    EIN 300444460 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  38. Pi Sigma Epsilon Inc

    EIN 320217444 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  39. Pi Sigma Epsilon Inc

    EIN 331103680 · Headquarters: GREENFIELD, WI, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990

  40. Pi Sigma Epsilon Inc

    EIN 364630333 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. Pi Sigma Epsilon Inc

    EIN 364640890 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  42. Pi Sigma Epsilon Inc

    EIN 371556406 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  43. Pi Sigma Epsilon Inc

    EIN 371574488 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  44. Pi Sigma Epsilon Inc

    EIN 383770357 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  45. Pi Sigma Epsilon Inc

    EIN 465190311 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  46. Pi Sigma Epsilon Inc

    EIN 541623609 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  47. Pi Sigma Epsilon Inc

    EIN 611546820 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Pi Sigma Epsilon Inc

    EIN 823264204 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Pi Sigma Epsilon Inc

    EIN 830391302 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. Pi Sigma Epsilon Inc

    EIN 830391309 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  51. Pi Sigma Epsilon Inc-baruch College the City University of New York

    EIN 371583533 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  52. Pi Sigma Epsilon National Educational Foundation Inc

    EIN 391650560 · Headquarters: GREENFIELD, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Pi Sigma Espilon

    EIN 270548906 · Headquarters: Greenfield, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  54. Pi Sigma Rho Corporation

    EIN 826005610 · Headquarters: Denver, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Pi Sigma Tau Alpha Alumni Assoc of the Delta Sigma Phi Fraternity

    EIN 990608586 · Headquarters: STRONGSVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Pi Tau Chapter of Omega Psi Phi Fraternity

    EIN 993082902 · Headquarters: Grambling, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Pi Tau Pi Fraternity of Chicago

    EIN 611859041 · Headquarters: PLAINFIELD, IL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  58. Pi Tau Sigma

    EIN 237005210 · Headquarters: Cookeville, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Pi Tau Sigma

    EIN 237355867 · Headquarters: Urbana, IL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  60. Pi Tau Sigma

    EIN 300210890 · Headquarters: Edwardsville, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Pi Tau Sigma

    EIN 370801477 · Headquarters: RUSTON, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Pi Tau Sigma

    EIN 466017103 · Headquarters: Brookings, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Pi Tau Sigma

    EIN 473698740 · Headquarters: Statesboro, GA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  64. Pi Tau Sigma

    EIN 581516432 · Headquarters: Greensboro, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Pi Tau Sigma

    EIN 581516468 · Headquarters: RIVERDALE, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Pi Tau Sigma

    EIN 581516501 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Pi Tau Sigma

    EIN 582176231 · Headquarters: Evansville, IN, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  68. Pi Tau Sigma

    EIN 636049674 · Headquarters: Tuscaloosa, AL, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  69. Pi Tau Sigma

    EIN 911877171 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Pi Tau Sigma

    EIN 936041255 · Headquarters: Corvallis, OR, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  71. Pi Tau Sigma Texas Tech Sigma Epsilon Chapter at Texas Tech

    EIN 756055207 · Headquarters: Lubbock, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Pi Theta Epsilon Delta Zeta Chapter

    EIN 472380707 · Headquarters: Memphis, TN, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  73. Pi Zeta Phi Social Service Club

    EIN 271724340 · Headquarters: Edmond, OK, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  74. Pi-kappa Alumni Chapter of Kappa Sigma

    EIN 452430909 · Headquarters: Upper Saddle River, NJ, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  75. Pi-nu Zeta of Lambda Chi Alpha Fraternity Inc

    EIN 933005901 · Headquarters: Providence, RI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Pi-zeta Alumni Chapter of Kappa Sigma

    EIN 863402715 · Headquarters: Charlotte, NC, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. Pia Mia Kia Honor Guard Inc

    EIN 352354340 · Headquarters: PHOENIX, AZ, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  78. Pia Tegler Benedictine Foundation

    EIN 450430947 · Headquarters: DICKINSON, ND, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Piacenti Family Charitable Foundation

    EIN 472517042 · Headquarters: CENTRAL, SC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  80. Piadosa Foundation

    EIN 474175425 · Headquarters: Mckinney, TX, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  81. Piange Development Company

    EIN 942898607 · Headquarters: Las Vegas, NV, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  82. Piano International Assoc of Northern Oh

    EIN 341774615 · Headquarters: SHAKER HEIGHTS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Piano Teachers Forum

    EIN 611611646 · Headquarters: Princeton, NJ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Piano Technicians Guild

    EIN 112586999 · Headquarters: Bay Shore, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Piano Technicians Guild

    EIN 202985879 · Headquarters: Sarasota, FL, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  86. Piano Technicians Guild

    EIN 264380348 · Headquarters: Shelbyville, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Piano Technicians Guild

    EIN 270188868 · Headquarters: Hendersonville, TN, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  88. Piano Technicians Guild

    EIN 461814009 · Headquarters: PALM SPRINGS, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Piano Technicians Guild

    EIN 510565254 · Headquarters: Provo, UT, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  90. Piano Technicians Guild

    EIN 810670204 · Headquarters: Las Vegas, NV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Piano Technicians Guild - San Diego Chapter 920

    EIN 843831222 · Headquarters: Escondido, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Piano Technicians Guild Appleton Wi Chapter 549

    EIN 270188869 · Headquarters: Houghton, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Piano Technicians Guild Atlanta

    EIN 462319115 · Headquarters: Woodstock, GA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Piano Technicians Guild Auxiliary

    EIN 273133984 · Headquarters: Richmond, TX, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  95. Piano Technicians Guild Buffalo Ny Chapter

    EIN 264717100 · Headquarters: Grand Island, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Piano Technicians Guild Chapter 454

    EIN 465548176 · Headquarters: Springfield, OH, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  97. Piano Technicians Guild Chapter 463 - Northwest Indiana

    EIN 464448086 · Headquarters: Crown Point, IN, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  98. Piano Technicians Guild Chapter 799 El Paso Tx

    EIN 462316516 · Headquarters: Chaparral, NM, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  99. Piano Technicians Guild Columbia Mo Chapter 653

    EIN 463198211 · Headquarters: Kirksville, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Piano Technicians Guild East Texas Chapter 756

    EIN 300564095 · Headquarters: Nacogdoches, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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