Unknown & Unclassified nonprofits in Maryland

Unknown & Unclassified nonprofits in Maryland. Browse 10,672 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. Arnold Air Society-silver Wings

    EIN 526056059 · Headquarters: College Park, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Arnold and Jeanne Bernstein Fund C/o Sarfino and Rhoades Llp

    EIN 136095410 · Headquarters: NORTH BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  3. Arnold House

    EIN 811592226 · Headquarters: Waldorf, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  4. Arnold Preservation Council Inc

    EIN 522332052 · Headquarters: ARNOLD, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Around the World for Christ Incorporated

    EIN 526080678 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Art League of Germantown Inc

    EIN 521499348 · Headquarters: Germantown, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Art League of Ocean City Inc

    EIN 521377610 · Headquarters: Ocean City, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Arthur H Korn Charitable Remainder Unitrust

    EIN 527028694 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  9. Artishia and Frederick Jordan Scholarship Fund Inc

    EIN 956702581 · Headquarters: BOWIE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Artists for a Better Image Inc

    EIN 521596193 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Artless Foundation Inc

    EIN 882706195 · Headquarters: POTOMAC, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  12. Arts at the Core Inc

    EIN 274690980 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  13. Arts Council of Calvert County Inc

    EIN 521594189 · Headquarters: PRINCE FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Artsfunds Org Inc

    EIN 522232570 · Headquarters: Chevy Chase, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Artunity Youth Inc

    EIN 934287972 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  16. Aruna Atul Shah Charitable Trust

    EIN 813035719 · Headquarters: Hughesville, MD, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  17. Arundel Boosters Club Inc

    EIN 521703510 · Headquarters: CROFTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  18. Arundel Camera Club Inc

    EIN 934446875 · Headquarters: Catonsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Arundel Gardens East Association Inc

    EIN 412063915 · Headquarters: BROOKLYN PARK, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Arundel Lodge Inc

    EIN 510169423 · Headquarters: EDGEWATER, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  21. Arundel Senior High School Ptso

    EIN 522268815 · Headquarters: Gambrills, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  22. Arundel Soccer Association Inc

    EIN 521348210 · Headquarters: Gambrills, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  23. Arundel Vocal Arts Society Incorporated

    EIN 521301514 · Headquarters: Arnold, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Asa of Baltimore Inc

    EIN 520992215 · Headquarters: NOTTINGHAM, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Asante Unity Association Inc

    EIN 821558770 · Headquarters: HYATTSVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  26. Asbestos Relief Fund Asbestos Workers International

    EIN 134306493 · Headquarters: LANHAM, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. Asbestos Workers International Holding Company

    EIN 522361362 · Headquarters: LANHAM, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Asbestos Workers Local 24 Apprentice- Ship Fund

    EIN 526083904 · Headquarters: COLUMBIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  29. Asbury Cemetery Association Incorporated of Cecil County

    EIN 526044817 · Headquarters: PERRYVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  30. Ashburton Area Association Inc

    EIN 521231258 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Ashp

    EIN 520807628 · Headquarters: Bethesda, MD, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Asi Missions Inc

    EIN 521302275 · Headquarters: COLUMBIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Asian-american Coalition for Achievement in Business Inc

    EIN 521883248 · Headquarters: Chevy Chase, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  34. Asiri Rural Development Network Inc

    EIN 863378190 · Headquarters: marriottsville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Asis International Inc

    EIN 510249006 · Headquarters: Hyattsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Asis International Inc

    EIN 521188788 · Headquarters: Landover, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Asociacion Guatemaltecos Sin Fronteras Inc

    EIN 852380904 · Headquarters: Hanover, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Asphalt Roofing Manufacturers Association

    EIN 130452220 · Headquarters: Forest Hill, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  39. Asquith Creek Charitable Trust

    EIN 521193104 · Headquarters: Arnold, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  40. Asrat Broadcast Services

    EIN 392737232 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. Assag Trumpet Foundation Co

    EIN 852573612 · Headquarters: FREDERICK, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  42. Assateague Mobile Sportfishermans Association Inc

    EIN 521359103 · Headquarters: BERLIN, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Assembly of Scientists

    EIN 202587233 · Headquarters: Kensington, MD, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  44. Assn of Fundraising Professionals-Maryland Chapter

    EIN 521600646 · Headquarters: DUNDALK, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. Assoc for Education & Rehbltatn of the Blind & Visually Impaired

    EIN 621305675 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Assoc for the Study of Classical African

    EIN 954275554 · Headquarters: Silver Spring, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Assoc of Faculties for Advancement of Community College Teaching

    EIN 811852801 · Headquarters: Westminster, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Assoc of Public School Admin & Supervisors of Carroll County Inc

    EIN 850839444 · Headquarters: Westminster, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Assoc of Public School Admin and Supv of Allegany County

    EIN 851345004 · Headquarters: cumberland, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Assocaition of Traditional Hooking Artists

    EIN 203505734 · Headquarters: KEEDYSVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Associated Black Charities Inc C/o Chris Thornton

    EIN 521427774 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Associated Charities of Cumberland Inc

    EIN 520591539 · Headquarters: CUMBERLAND, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  53. Associated Church Press

    EIN 362466633 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Associated Daughters of Early American Witches

    EIN 770105416 · Headquarters: East New Market, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Associated Gun Clubs of Baltimore Inc

    EIN 526040730 · Headquarters: Marriottsville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Associated Specialty Contractors Inc

    EIN 526037129 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  57. Associates of Vietnam Veterans of America

    EIN 990551839 · Headquarters: Ocean City, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Association for Accounting Administration Baltimore Chapter

    EIN 611560791 · Headquarters: Columbia, MD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  59. Association for Animal Rights Inc

    EIN 521582144 · Headquarters: REISTERSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  60. Association for Computing Machinery

    EIN 521099130 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  61. Association for Financial Professionals

    EIN 581424769 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Association for Games & Puzzles International

    EIN 222993621 · Headquarters: Edgewater, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Association for Intelligent Information Management and Affiliates

    EIN 520810190 · Headquarters: Silver Spring, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Association For Mali Above All Inc

    EIN 872090823 · Headquarters: Bladensburg, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  65. Association for Minority Economic Expansion Corp

    EIN 521842485 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  66. Association for Persons in Supported Employment

    EIN 541470501 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  67. Association for Supervision and Curriculum Development

    EIN 521557547 · Headquarters: Westminster, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Association for the Prevention of Sickle Cell Anemia Inc

    EIN 521530126 · Headquarters: Aberdeen, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Association for Women in Science Inc

    EIN 264833941 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Association of Air Conditioning Professionals Inc

    EIN 237131358 · Headquarters: COCKEYSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  71. Association of Balto County Retired Police Inc

    EIN 521694431 · Headquarters: WHITE MARSH, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Association of Black Psychologists

    EIN 382036088 · Headquarters: FORT WASHINGTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  73. Association of Certified Fraud Examiners 21 MD Chapter

    EIN 900185033 · Headquarters: Perry Hall, MD, USA · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  74. Association of Classified Employees ACE-AFSMCE Local 2250 Union

    EIN 520887253 · Headquarters: Upper Malboro, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  75. Association of Contingency Planners

    EIN 203528012 · Headquarters: Owings Mills, MD, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  76. Association of Drilled Shaft Contractors

    EIN 264349293 · Headquarters: Phoenix, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Association of Government Accountants

    EIN 521119334 · Headquarters: Kensington, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Association of Government Accountants

    EIN 521344944 · Headquarters: Halethorpe, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Association of Harford County Admin Tech & Supervisory Professionals

    EIN 205249078 · Headquarters: Bel Air, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Association of Operating Room Nurses Inc

    EIN 237429149 · Headquarters: Westminster, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Association of Operating Room Nurses Inc

    EIN 463639926 · Headquarters: Fairplay, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Association of Practicing Cpas

    EIN 237259449 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  83. Association of Professional Researchers for Advancement

    EIN 471877336 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Association of Professors of Gynecology and Obstetrics

    EIN 476057648 · Headquarters: CROFTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Association of Public School Adminstrato Rs and Supervisors of APSASHC

    EIN 870950105 · Headquarters: Bel Air, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Association of Retired Policemen of Washington DC Inc

    EIN 521035737 · Headquarters: HANOVER, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  87. Association of Roman Catholic Homeschoolers

    EIN 453014610 · Headquarters: Boyds, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Association of Schools and Colleges of Optometry

    EIN 521005768 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Association of Supervisory & Administrative School Personnel

    EIN 521571398 · Headquarters: Largo, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Association of the Class of 1952 U S Naval Academy

    EIN 526070175 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  91. Association of Traditional Hooking Artists

    EIN 202821993 · Headquarters: KEEDYSVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  92. Association of Traditional Hooking Artists

    EIN 203100482 · Headquarters: Edgewater, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Association of Traditional Hooking Artists

    EIN 263353551 · Headquarters: Rohrersville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Assumpta Mission Inc

    EIN 852013062 · Headquarters: Glen Burnie, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. At & Mary H Blades Foundation Inc

    EIN 520794020 · Headquarters: PRESTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  96. Athletic Boosters for Westminster High School Inc

    EIN 814973954 · Headquarters: WESTMINSTER, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Atholton Swim Club Inc

    EIN 520801957 · Headquarters: SIMPSONVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. Atlantic Coast Sportfishing Association

    EIN 824878958 · Headquarters: bishopville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Atrium Association Inc

    EIN 521058096 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Atu Jerry Fund Inc

    EIN 521445945 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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