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. American Inns of Court Foundation

    EIN 882916886 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Institute of Aeronautics and Astronautics

    EIN 521734308 · Headquarters: Elkton, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. American Institute of Architects Inc

    EIN 237017050 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  4. American Institute of Chemical Engineers

    EIN 526050841 · Headquarters: ESSEX, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. American Institute of Graphic Arts

    EIN 521600891 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. American Institute of Parliamentarians

    EIN 521776278 · Headquarters: Bowie, MD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  7. American Institute of Urban and Regional Affairs

    EIN 522114893 · Headquarters: FREDERICK, MD, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  8. American Israel Numismatic Association Inc

    EIN 237069394 · Headquarters: SILVER SPRING, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. American Kidney Fund

    EIN 237124261 · Headquarters: ROCKVILLE, MD, United States · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. American Legion

    EIN 237174767 · Headquarters: BELTSVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  11. American Legion

    EIN 271724124 · Headquarters: Columbia, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. American Legion

    EIN 473485246 · Headquarters: Bowie, MD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  13. American Legion

    EIN 510522995 · Headquarters: Leonardtown, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. American Legion

    EIN 520556591 · Headquarters: Laurel, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. American Legion

    EIN 520592021 · Headquarters: COLMAR MANOR, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. American Legion

    EIN 520824635 · Headquarters: Bowie, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  17. American Legion

    EIN 520845941 · Headquarters: Cheverly, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. American Legion

    EIN 520965325 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  19. American Legion

    EIN 521286075 · Headquarters: OLNEY, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. American Legion

    EIN 521676703 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  21. American Legion

    EIN 526059617 · Headquarters: District Heights, MD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  22. American Legion

    EIN 526077887 · Headquarters: Edgewater, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. American Legion

    EIN 526077908 · Headquarters: Barton, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. American Legion

    EIN 526077958 · Headquarters: Cambridge, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. American Legion

    EIN 526077960 · Headquarters: Huntingtown, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. American Legion

    EIN 526077973 · Headquarters: Bel Air, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. American Legion

    EIN 526077982 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. American Legion

    EIN 526078023 · Headquarters: Parkton, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. American Legion

    EIN 853159306 · Headquarters: Galena, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. American Legion

    EIN 853159941 · Headquarters: Owings Mills, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. American Legion

    EIN 853177221 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. American Legion

    EIN 853195977 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. American Legion

    EIN 853196565 · Headquarters: Cumberland, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. American Legion

    EIN 853196934 · Headquarters: Lexington Park, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. American Legion

    EIN 992995770 · Headquarters: Port Deposit, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. American Legion #16 Stanley Cochrane

    EIN 520701347 · Headquarters: CRISFIELD, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. American Legion 122

    EIN 526119762 · Headquarters: Owings Mills, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. American Legion 15 Cecil

    EIN 520571611 · Headquarters: ELKTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. American Legion 168 Edwin C Creeger

    EIN 520608785 · Headquarters: Thurmont, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. American Legion 175 Severna Park Post 175

    EIN 526077913 · Headquarters: Severna Park, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. American Legion 191 Gold Star

    EIN 526077907 · Headquarters: Mount Airy, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. American Legion 211 Dixon-troxell Post

    EIN 526077895 · Headquarters: FUNKSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. American Legion 39 Harford Post

    EIN 520553081 · Headquarters: BEL AIR, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. American Legion 40 Glen Burnie Post

    EIN 520895317 · Headquarters: Glen Burnie, MD, USA · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990

  45. American Legion 94 Oliver T Beauchamp Jr

    EIN 526077954 · Headquarters: PRINCESS ANNE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. American Legion 96 Steadman-keenan Post

    EIN 520556773 · Headquarters: BRUNSWICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  47. American Legion Auxilary Department of Maryland Beltway Unit

    EIN 521321760 · Headquarters: Lanham, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. American Legion Auxiliary

    EIN 237137398 · Headquarters: Thurmont, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. American Legion Auxiliary

    EIN 237189113 · Headquarters: FORESTVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. American Legion Auxiliary

    EIN 237399779 · Headquarters: Centreville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. American Legion Auxiliary

    EIN 274428799 · Headquarters: RISING SUN, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. American Legion Auxiliary

    EIN 352404551 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. American Legion Auxiliary

    EIN 364886240 · Headquarters: Catonsville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. American Legion Auxiliary

    EIN 520703367 · Headquarters: Cambridge, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  55. American Legion Auxiliary

    EIN 521297396 · Headquarters: Havre de Grace, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. American Legion Auxiliary

    EIN 521298936 · Headquarters: Avenue, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. American Legion Auxiliary

    EIN 521298967 · Headquarters: Lusby, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. American Legion Auxiliary

    EIN 521299111 · Headquarters: Betterton, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. American Legion Auxiliary

    EIN 521299353 · Headquarters: Funkstown, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. American Legion Auxiliary

    EIN 521300228 · Headquarters: CHEVERLY, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. American Legion Auxiliary

    EIN 521301112 · Headquarters: Severn, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. American Legion Auxiliary

    EIN 521308532 · Headquarters: HAGERSTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. American Legion Auxiliary

    EIN 521308551 · Headquarters: Fallston, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. American Legion Auxiliary

    EIN 521321701 · Headquarters: Glen Burnie, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  65. American Legion Auxiliary

    EIN 521321731 · Headquarters: Brunswick, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. American Legion Auxiliary

    EIN 521321743 · Headquarters: Greenbelt, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. American Legion Auxiliary

    EIN 521321765 · Headquarters: Williamsport, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. American Legion Auxiliary

    EIN 521321784 · Headquarters: Cascade, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. American Legion Auxiliary

    EIN 521321788 · Headquarters: TEMPLE HILLS, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  70. American Legion Auxiliary

    EIN 521511552 · Headquarters: Queenstown, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. American Legion Auxiliary

    EIN 521783131 · Headquarters: BEL AIR, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. American Legion Auxiliary

    EIN 521845485 · Headquarters: Clear Spring, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  73. American Legion Auxiliary

    EIN 521921072 · Headquarters: Sharpsburg, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. American Legion Auxiliary

    EIN 522066041 · Headquarters: Mt Airy, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. American Legion Auxiliary

    EIN 522075975 · Headquarters: Easton, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. American Legion Auxiliary

    EIN 522084534 · Headquarters: Bowie, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  77. American Legion Auxiliary

    EIN 522090757 · Headquarters: Frostburg, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. American Legion Auxiliary

    EIN 522109211 · Headquarters: Cumberland, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. American Legion Auxiliary

    EIN 526054873 · Headquarters: College Park, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. American Legion Auxiliary

    EIN 526055475 · Headquarters: Parkton, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. American Legion Auxiliary

    EIN 752980400 · Headquarters: Frederick, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. American Legion Auxiliary

    EIN 800146270 · Headquarters: Severna Park, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. American Legion Auxiliary

    EIN 900298839 · Headquarters: Sharptown, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. American Legion Auxiliary

    EIN 900748580 · Headquarters: Easton, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. American Legion Auxiliary 82 Harry White Wilmer

    EIN 521308879 · Headquarters: LA PLATA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. American Legion Auxiliary at Annapolis of Cook- Pinkey Post No

    EIN 521312115 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. American Legion Auxiliary Depart of MD Unit 166

    EIN 522064303 · Headquarters: Ocean City, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. American Legion Auxiliary Departiment of Maryland Cummings

    EIN 521303004 · Headquarters: Mayo, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  89. American Legion Auxiliary Department of Maryland

    EIN 520639437 · Headquarters: Halethorpe, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. American Legion Auxiliary Department of Maryland Dewey

    EIN 521308548 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. American Legion Auxiliary Dept of Maryland Kent Island Unit No 278

    EIN 521304904 · Headquarters: STEVENSVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. American Legion Auxiliary Dept of Maryland Wicomico Unit 64 Inc

    EIN 521652936 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. American Legion Auxiliary Dept of Md Laurel Unit 60

    EIN 262302640 · Headquarters: Laurel, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. American Legion Auxiliary Essex Unit 148 Department of Maryland Inc

    EIN 521312858 · Headquarters: Middle River, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  95. American Legion Auxiliary Glenn W Eyler Unit 282

    EIN 526057291 · Headquarters: Woodsboro, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. American Legion Auxiliary Hampstead Unit #200

    EIN 521111828 · Headquarters: Hampstead, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  97. American Legion Auxiliary Southwest 332

    EIN 611942329 · Headquarters: HALETHORPE, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  98. American Legion Auxiliary Unit 255

    EIN 521186437 · Headquarters: RIDGE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  99. American Legion Auxillary Clopper Michael Unit 10

    EIN 900285203 · Headquarters: BOONSBORO, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  100. American Legion Calvert County Council

    EIN 521746807 · Headquarters: HUNTINGTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

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