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. Ancient Free & Accepted Masons of Maryland

    EIN 526080914 · Headquarters: Oakland, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  2. Ancient Free & Accepted Masons of Maryland

    EIN 800790150 · Headquarters: Perry Hall, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Ancient Free & Accepted Masons of Maryland

    EIN 812154859 · Headquarters: NOTTINGHAM, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Ancient Free & Accepted Masons of Maryland

    EIN 900800761 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Ancient Free & Accepted Masons of Maryland Evergreen Lodge #153

    EIN 526065883 · Headquarters: Berlin, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  6. Ancient Free & Accepted Masons of Maryland Grand Lodge

    EIN 520226260 · Headquarters: Sharptown, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Ancient Free &Amp Accepted Masons of Maryland

    EIN 526048097 · Headquarters: Indian HEAD, MD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  8. Ancient Free and Accepted Mason of Maryland

    EIN 237591241 · Headquarters: Parkton, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Ancient Free and Accepted Masons of Md Af Am Mt Moriah No 116

    EIN 520226280 · Headquarters: TOWSON, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. Ancient Mystical Order of Rosae Crucis

    EIN 521118329 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Ancient Order of Hibernians in America

    EIN 271720917 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Ancient Order of Hibernians in America

    EIN 412069565 · Headquarters: Glenn Dale, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  13. Ancient Order of Hibernians in America

    EIN 462932921 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Ancient Order of Hibernians in America

    EIN 464800841 · Headquarters: BERLIN, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  15. Ancient Order of Hibernians in America

    EIN 464968208 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Ancient Order of Hibernians in America

    EIN 465347597 · Headquarters: Bel Air, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Ancient Order of Hibernians in America

    EIN 900982778 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Andrew Maguire Saul Fund 22-200275

    EIN 526405386 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  19. Andrews Spouses' Club

    EIN 521221621 · Headquarters: Joint Base Andrews, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Anew Inspired Change Organization

    EIN 463765911 · Headquarters: Upper Marlboro, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Ang Bisaya Inc

    EIN 521311166 · Headquarters: Potomac, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Angel Gowns by Baba Inc

    EIN 831601492 · Headquarters: Kingsville, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  23. Angels Alert Care Foundation International Inc

    EIN 851092700 · Headquarters: BOWIE, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  24. Animal Action Inc

    EIN 521051384 · Headquarters: COCKEYSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  25. Animal Welfare Society of Howard County Inc

    EIN 520594866 · Headquarters: COLUMBIA, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Ann Arundell County

    EIN 526046860 · Headquarters: Linthicum, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Anna Emory Warfield Memorial Fund Inc

    EIN 520785672 · Headquarters: RIDERWOOD, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  28. Anna Prayer Counseling Inc

    EIN 521392610 · Headquarters: Frederick, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. Annahibop Inc 2700 Riva Rd

    EIN 521651014 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Annapolis (Md) Chapter the Links Incorporated

    EIN 526072540 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Annapolis Anglers Club

    EIN 833186281 · Headquarters: Crownsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Annapolis Arts Alliance

    EIN 710954646 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  33. Annapolis Bcm Foundation Inc

    EIN 521162612 · Headquarters: Annapolis, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. Annapolis Branch 024 of Fleet Reserve Association

    EIN 562669610 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Annapolis Chapter - University of Maryland Alumni Association

    EIN 471799399 · Headquarters: Severna Park, MD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  36. Annapolis Chapter 661 Women of the Moose

    EIN 237206704 · Headquarters: Riva, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Annapolis Cove Property Owners Association Inc

    EIN 521312473 · Headquarters: LA PLATA, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. Annapolis Design District Inc

    EIN 815042489 · Headquarters: Annapolis, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. Annapolis Duplicate Bridge

    EIN 933772704 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  40. Annapolis Greek Heritage Limited

    EIN 863194844 · Headquarters: CROFTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  41. Annapolis Maritime Museum & Park

    EIN 521664577 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Annapolis Md Chapter Harley Owners Group

    EIN 521698384 · Headquarters: ANNAPOLIS, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  43. Annapolis Middle School - Foreign Language Club

    EIN 352419745 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  44. Annapolis Middle School Music Boosters

    EIN 800740962 · Headquarters: ANNAPOLIS, MD, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  45. Annapolis Moose Lodge #296

    EIN 520227430 · Headquarters: Annapolis, Maryland, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Annapolis Summer Garden Theatre

    EIN 526078380 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Annapolis Surf Club Inc

    EIN 593802796 · Headquarters: Halethorpe, MD, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  48. Annapolis Watercolor Club Inc

    EIN 522075562 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Anne Arundel County 4-H Foundation Incorporated

    EIN 526082282 · Headquarters: Gambrills, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Anne Arundel County Assoc of Realtors Inc

    EIN 526054304 · Headquarters: ARNOLD, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  51. Anne Arundel County Citizens for Protection Against Vlt Facilities

    EIN 270483592 · Headquarters: Hanover, MD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  52. Anne Arundel County Detention Sergeants Associations I U P a 141

    EIN 522308740 · Headquarters: Easton, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Anne Arundel County Farm Bureau Inc

    EIN 521282045 · Headquarters: DAVIDSONVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  54. Anne Arundel County Licensed Beverage Association

    EIN 237120869 · Headquarters: Arnold, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  55. Anne Arundel County Literacy Council Inc

    EIN 521479101 · Headquarters: EDGEWATER, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Anne Arundel County Public Library

    EIN 526001871 · Headquarters: Annapolis, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Anne Arundel County Tennis Association Inc

    EIN 521679739 · Headquarters: ANNAPOLIS, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  58. Anne Arundel Genealogical Society

    EIN 237450418 · Headquarters: Glen Burnie, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Anne Arundel Retired School Personnel Association Inc

    EIN 521157487 · Headquarters: Annapolis, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  60. Anne Arundel Striders Inc

    EIN 465250311 · Headquarters: ODENTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  61. Anneslie Community Inc

    EIN 526054133 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Annie Roberts Trust UW

    EIN 526023574 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  63. Anointing Fire Catholic Ministry Dc Inc

    EIN 821716194 · Headquarters: OLNEY, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Antique Motor Club of Greater Baltimore Inc Amcgb

    EIN 521874212 · Headquarters: Manchester, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Antony Tudor Trust Under Clause 4Th C/o Amanda Mckerrow

    EIN 136905798 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  66. Anxiety & Depression Association of America

    EIN 521248820 · Headquarters: Silver Spring, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Aoac International

    EIN 530029357 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Aoac International

    EIN 541620377 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  69. Aoac International

    EIN 541627938 · Headquarters: Gaithersburg, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  70. Aoac International

    EIN 541627941 · Headquarters: Frederick, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  71. Aphl

    EIN 521800436 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Aplastic Anemia & Mds International Foundation Inc

    EIN 521336903 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Apostolic Resource Center Inc

    EIN 923240019 · Headquarters: Lutherville Timonium, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Appalachian State University PAD Prelaw Chapter

    EIN 271711555 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Apple Ridge Ministries

    EIN 264584492 · Headquarters: Fairplay, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  76. Applied Computer Security Associate Inc

    EIN 521575759 · Headquarters: OLNEY, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  77. Aqua Squares

    EIN 521793173 · Headquarters: Lusby, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Ar Bancroft Community Development Corporation

    EIN 521172466 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Ar Landsman Foundation Inc

    EIN 136128661 · Headquarters: CABIN JOHN, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  80. Aracelly Inc

    EIN 812221748 · Headquarters: La Plata, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  81. Arc of Carroll County Inc

    EIN 520707322 · Headquarters: WESTMINSTER, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Arc Properties Inc

    EIN 521509032 · Headquarters: FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Archbishop Michael J Curley Assembly No 383

    EIN 331298745 · Headquarters: Beltsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Archdiocese of Baltimore Chancery Inc

    EIN 520591535 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  85. Archeological Society of Maryland Inc

    EIN 526060154 · Headquarters: rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Arden Recreation Inc

    EIN 521364986 · Headquarters: Crownsville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Areif Inc

    EIN 900647464 · Headquarters: Odenton, MD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  88. Areo Amateur Radio Club Inc

    EIN 521375673 · Headquarters: Middle River, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Arion Gesangverein Inc

    EIN 526054129 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Arise International Ministry

    EIN 842721154 · Headquarters: Brandywine, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  91. Arisen Corp

    EIN 521812610 · Headquarters: GRANTSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  92. Arizona State University Student Chapter

    EIN 237035891 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  93. Ark of Life Empowerment Center Inc

    EIN 943485860 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  94. Ark of Love Empowerment Center Inc

    EIN 800848874 · Headquarters: Temple Hills, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  95. Arkansas Tech University Student Chapter

    EIN 522003325 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  96. Arlington Rifle and Pistol Club

    EIN 331194771 · Headquarters: Simpsonville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Armed Forces Communications and Electronics Association

    EIN 521241075 · Headquarters: APG, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Armed Forces Communications and Electronics Association

    EIN 760736664 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Armenian Youth Center of Greater Washington Inc

    EIN 521337431 · Headquarters: Bethesda, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. Arminius Social Club Inc

    EIN 526057384 · Headquarters: Hyattsville, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

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