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. Pittsburg Street Outreach

    EIN 932129441 · Headquarters: Warren, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  2. Pittsburg Unified School District Financing Corporation

    EIN 943222629 · Headquarters: Pittsburg, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Pittsburg Vietnam Memorial

    EIN 680073558 · Headquarters: PITTSBURG, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  4. Pittsburg Volunteer Fire Department

    EIN 431316154 · Headquarters: Pittsburg, MO, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  5. Pittsburg Yacht Club

    EIN 942394479 · Headquarters: PITTSBURG, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  6. Pittsburg-camp County Public Library

    EIN 751379945 · Headquarters: PITTSBURG, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Pittsburgh Academy of Nutrition and Dietetics

    EIN 251452211 · Headquarters: Jeannette, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  8. Pittsburgh Administrators Assoc

    EIN 237293752 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  9. Pittsburgh Airport Area Chamber of Commerce

    EIN 250950520 · Headquarters: MOON TOWNSHIP, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Pittsburgh Allegheny County Thermal Ltd

    EIN 251414595 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Pittsburgh Archery

    EIN 862896205 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Pittsburgh Area Chapter of Aci

    EIN 251528954 · Headquarters: ZELIENOPLE, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Pittsburgh Area Jitterbug Club

    EIN 542138745 · Headquarters: Monroeville, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Pittsburgh Area Peace Corps Association

    EIN 274482540 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Pittsburgh Area Theatre Organ Society Inc

    EIN 251217065 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Pittsburgh Arts & Lectures Inc

    EIN 251657947 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Pittsburgh Association for Financial Professionals

    EIN 251393626 · Headquarters: Allison PArk, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Pittsburgh Association of Manufacturers Representatives

    EIN 251467254 · Headquarters: SOUTH PARK, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Pittsburgh Association of Petroleum Geologists Inc

    EIN 251505924 · Headquarters: Cranberry Township, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Pittsburgh Association of the Deaf Inc

    EIN 251014246 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Pittsburgh Bicentennial Commission Co Historical Society of Western Pa

    EIN 811403296 · Headquarters: PITTSBURGH, PA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  22. Pittsburgh Bills Backers

    EIN 392346818 · Headquarters: Baden, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  23. Pittsburgh Bridge Association

    EIN 237083311 · Headquarters: Pittsburgh, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Pittsburgh Buffalo Soldiers Inc

    EIN 880706022 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  25. Pittsburgh Builders Exchange Dba Pennsylvania Builders Exchange

    EIN 250728430 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Pittsburgh Building Owners Welfare Fund

    EIN 256048835 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Pittsburgh Business Group on Health

    EIN 251420994 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  28. Pittsburgh Caribbean Association

    EIN 883658629 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Pittsburgh Ceili Club

    EIN 251671356 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Pittsburgh Chapt No 1 Women of the Moose

    EIN 237159095 · Headquarters: Mooseheart, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  31. Pittsburgh Chapt No 847 Women of the Moose

    EIN 680039021 · Headquarters: Pittsburg, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Pittsburgh Chapter Aazk

    EIN 464767104 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Pittsburgh Chapter National Tooling & Machining Association

    EIN 251293867 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  34. Pittsburgh Chapter of Project Management Institute

    EIN 251717011 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  35. Pittsburgh Chapter of the American Institute of Architects

    EIN 251155608 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  36. Pittsburgh Chapter of the Association for the Improvement Of

    EIN 251552872 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Pittsburgh Chapter of the Construction Specifications Ins

    EIN 251195625 · Headquarters: Wexford, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  38. Pittsburgh Chapter of the Risk Management Association

    EIN 251473057 · Headquarters: Butler, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Pittsburgh Chapter of the Veterans of the 406Th Health & Rec Camp

    EIN 251669079 · Headquarters: LEXINGTON, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Pittsburgh Chapter Risk and Insurance Management Society Inc

    EIN 251369903 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. Pittsburgh Chapter United Ostomy Association Inc

    EIN 256035849 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  42. Pittsburgh Child Guidance Foundation

    EIN 250965465 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  43. Pittsburgh Collegiate Football Officials Association

    EIN 880660651 · Headquarters: evans city, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Pittsburgh Commandery No 1

    EIN 250598334 · Headquarters: Pittsburgh, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Pittsburgh Community Television

    EIN 251520527 · Headquarters: Ingomar, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  46. Pittsburgh Concert Chorale

    EIN 251584697 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Pittsburgh Concert Society

    EIN 256058409 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Pittsburgh Dialogue Foundation

    EIN 260617772 · Headquarters: Dormant, PA, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  49. Pittsburgh Dynamo Youth Soccer Association Inc

    EIN 251432936 · Headquarters: Pittsburgh, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Pittsburgh Elite Aquatics

    EIN 251395653 · Headquarters: Presto, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Pittsburgh Emergency Medicine Foundation

    EIN 251526739 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Pittsburgh Executives Association Inc

    EIN 250729675 · Headquarters: Pittsburgh, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  53. Pittsburgh Experiment

    EIN 251029399 · Headquarters: EIGHTY FOUR, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Pittsburgh Fall Retreat Inc

    EIN 612052053 · Headquarters: Allison Park, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  55. Pittsburgh Federation of Teachers

    EIN 251151509 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Pittsburgh Federation of Teachers Building Corp

    EIN 251464200 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Pittsburgh Field Club

    EIN 250729720 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Pittsburgh Filmmakers Inc

    EIN 251229210 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Pittsburgh Firefighters Iaff Local Union # 1

    EIN 251127052 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  60. Pittsburgh Flying Club

    EIN 251261343 · Headquarters: Greensburg, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  61. Pittsburgh Franklins

    EIN 800573019 · Headquarters: MURRYSVILLE, PA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  62. Pittsburgh Future Collaborative

    EIN 882849949 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  63. Pittsburgh Gateways Corporation

    EIN 232939083 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Pittsburgh Geological Society Inc

    EIN 237280772 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Pittsburgh Glaziers Local Union 751 Supplemental Employment Fund

    EIN 237309720 · Headquarters: FREEDOM, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. Pittsburgh Hires Veterans

    EIN 270124470 · Headquarters: PITTSBURGH, PA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  67. Pittsburgh Homesteaders Vintage Bas

    EIN 831959842 · Headquarters: NEW KENSINGTON, PA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  68. Pittsburgh Indian Community and Friends

    EIN 471310070 · Headquarters: Baden, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Pittsburgh Institute of Aeronautics

    EIN 250912618 · Headquarters: WEST MIFFLIN, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Pittsburgh Italian Scholarship Fund

    EIN 251464128 · Headquarters: Homestead, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Pittsburgh Jazz Artist Museum Organization

    EIN 271333002 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  72. Pittsburgh Kollel Bais Yitzchok

    EIN 237055604 · Headquarters: Pittsburgh, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Pittsburgh Lclaa

    EIN 823674035 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Pittsburgh Leadership Foundation

    EIN 251345815 · Headquarters: Oakmont, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Pittsburgh Legal Administrator's Association

    EIN 251766792 · Headquarters: ALLISON PARK, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Pittsburgh Metro Area Postal Workers Union

    EIN 251232812 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. Pittsburgh Musicians' Union Local 60-471

    EIN 250319339 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  78. Pittsburgh New Music Ensemble

    EIN 251364030 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. Pittsburgh North Optimist Fdn

    EIN 251702061 · Headquarters: PITTSBURGH, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Pittsburgh North Regional Chamber Educational Foundation

    EIN 251665128 · Headquarters: WEXFORD, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Pittsburgh North Regional Chamber Inc

    EIN 251374594 · Headquarters: WEXFORD, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Pittsburgh Northstars Parents Club

    EIN 251711915 · Headquarters: Wildwood, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Pittsburgh Oasis

    EIN 271511359 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  84. Pittsburgh Obstetrical and Gynecological Society

    EIN 231347706 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  85. Pittsburgh Piano Teachers Association

    EIN 251630118 · Headquarters: Moon Township, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Pittsburgh Planned Giving Council

    EIN 521524931 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. Pittsburgh Pride Choir

    EIN 251539328 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Pittsburgh Psychoanalytic Center

    EIN 237318235 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  89. Pittsburgh Realtist Professionals

    EIN 922618714 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  90. Pittsburgh Rotary Club Foundation

    EIN 256026235 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Pittsburgh Section American Chemical Society

    EIN 237401645 · Headquarters: CANONSBURG, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  92. Pittsburgh Section of the American Nuclear Society Incorporated

    EIN 256087974 · Headquarters: Cranberry Township, PA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  93. Pittsburgh Shotokan Karate

    EIN 251625487 · Headquarters: Carnegie, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Pittsburgh Ski Club

    EIN 237136799 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Pittsburgh Skin & Cancer Foundation

    EIN 250965472 · Headquarters: PITTSBURGH, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Pittsburgh Society of Association Executives

    EIN 251342677 · Headquarters: PIttsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Pittsburgh South Hills Elks BPOE 2213

    EIN 251158674 · Headquarters: Bethel Park, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Pittsburgh Squash Racquets Association

    EIN 251558025 · Headquarters: BEAVER, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Pittsburgh Symphony Members Assoc

    EIN 232899907 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Pittsburgh Symposium for Nurse Anestheti

    EIN 251664257 · Headquarters: FREEPORT, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

First page and all pages