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. Brotherhood of Maintenance of Way Employees

    EIN 556001245 · Headquarters: Lavale, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Brotherhood of Railroad Signalmen

    EIN 316000467 · Headquarters: HAGERSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  3. Brotherhood of Railroad Signalmen Amtrak Eastern General Committee

    EIN 364332233 · Headquarters: SEVERNA PARK, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. Brotherhood of the Jungle Cock Inc

    EIN 521695792 · Headquarters: REISTERSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Brothers and Sisters of the Way

    EIN 237318040 · Headquarters: FREDERICK, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Brothers Bound Maryland Inc

    EIN 934692336 · Headquarters: Gaithersburg, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. Brown-leigh Fdn Inc

    EIN 364782219 · Headquarters: SILVER SPRING, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  8. Browningsville Cornet Band Inc

    EIN 526055507 · Headquarters: Germantown, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Bruco Inc

    EIN 520981051 · Headquarters: Emmitsburg, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Brunswick Aerie #1136 Foe Inc

    EIN 520892535 · Headquarters: BRUNSWICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  11. Brunswick High School Athletic Boosters Inc

    EIN 521624367 · Headquarters: Knoxville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Brunswick Jr Railroader Boosters Inc

    EIN 521781671 · Headquarters: JEFFERSON, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  13. Brunswick Medical Center

    EIN 521176297 · Headquarters: Brunswick, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Bryant O Robinson Jr Inc

    EIN 462995702 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  15. Bsh Foundation Inc

    EIN 521617564 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  16. Buck Family Foundation

    EIN 221711627 · Headquarters: Ridgely, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  17. Buckets of Love Inc

    EIN 853223954 · Headquarters: Laurel, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Buckeyephi Corporation

    EIN 311341958 · Headquarters: GERMANTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Buckingham School Frederick County Md

    EIN 526034781 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  20. Budhanikantha School Endowment Fund Inc

    EIN 472489945 · Headquarters: Indian Head, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Build a Dream Foundation Inc

    EIN 521450264 · Headquarters: WALDORF, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  22. Building Bridges for a Better Baltimore Foundation Inc

    EIN 920896842 · Headquarters: BEL AIR, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  23. Building Cyber Security

    EIN 844781111 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  24. Building Owners and Managers Association of Greater Baltimore Inc

    EIN 520258850 · Headquarters: FOREST HILL, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Building Owners and Managers Institute

    EIN 237070298 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Bulldog Association

    EIN 800731414 · Headquarters: Fort Meade, MD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  27. Burkittsville Ruritan Club Inc

    EIN 521127004 · Headquarters: Burkittsville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Burma-america Buddhist Association Inc

    EIN 521198415 · Headquarters: Silver Spring, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Burmese Medical Association of Nort

    EIN 363777502 · Headquarters: BALTIMORE, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  30. Burrsville Ruritan Club Inc

    EIN 526070858 · Headquarters: Denton, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. Burtonsville Volunteer Fire Department Inc

    EIN 520846078 · Headquarters: BURTONSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. Bush River Yacht Club Inc

    EIN 520561371 · Headquarters: ABINGDON, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  33. Business Action Fund

    EIN 832618697 · Headquarters: NORTH BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Business and Professional Womens Foundation of Maryland Inc

    EIN 521580044 · Headquarters: BRANDYWINE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Business Solutions Association

    EIN 363987241 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Business Womens Network of Howard County Inc

    EIN 521800615 · Headquarters: Columbia, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  37. Butchers Hill Association Inc

    EIN 521570464 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Butler Volunteer Fire Company

    EIN 526035612 · Headquarters: BUTLER, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  39. Buttonwood Beach Association

    EIN 521200149 · Headquarters: Earleville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Byron House Inc

    EIN 521901039 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Bywater Mutual Homes Inc

    EIN 130816700 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. C Burr Artz Trust

    EIN 520591537 · Headquarters: FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. C H I S S L

    EIN 461556729 · Headquarters: Bel Air, MD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  44. C Milton Wright High School Ptsa

    EIN 934785784 · Headquarters: Bel Air, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. C S I Middle Atlantic Region Inc Construction Spec Institute Inc

    EIN 521587360 · Headquarters: Pikesville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. C-g Health Inc

    EIN 843469925 · Headquarters: LAUREL, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  47. Cabin John Memorial Vfw Post 5633

    EIN 237305456 · Headquarters: Potomac, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Cadillac & Lasalle Club Inc

    EIN 382381166 · Headquarters: NORTH POTOMAC, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. California University of PA Student Chapter

    EIN 522049048 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. Callas Contractors, LLC

    EIN 550563741 · Headquarters: Hagerstown, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Calleva Inc

    EIN 522082054 · Headquarters: POOLESVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Calvary Asbury United Methodist Church

    EIN 520654395 · Headquarters: Sudlersville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Calvary Community Economic Development Corp

    EIN 331105509 · Headquarters: SEVERN, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Calvary Life Baptist Chapel

    EIN 465482218 · Headquarters: LAUREL, MD, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  55. Calvert County American Little League

    EIN 521198551 · Headquarters: PRINCE FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  56. Calvert County Chamber of Commerce Inc

    EIN 521215923 · Headquarters: PRINCE FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Calvert County Farm Bureau

    EIN 520975318 · Headquarters: PRINCE FREDERICK, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Calvert County Historical Soc Inc

    EIN 237259823 · Headquarters: PRINCE FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Calvert County Sportsmens Club Inc

    EIN 521372642 · Headquarters: Prince Frederick, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Calvert Education Association Inc

    EIN 521055500 · Headquarters: PRINCE FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Calvert Hills Citizens Association

    EIN 352474474 · Headquarters: College Park, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Calvert Hospice Inc

    EIN 521329515 · Headquarters: PRINCE FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  63. Calvert Manor Civic Association Inc

    EIN 526048579 · Headquarters: Accokeek, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Calvert Marine Museum Society Inc

    EIN 521363427 · Headquarters: SOLOMONS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Calvert Meals on Wheels Inc

    EIN 521242692 · Headquarters: PRNC FREDERCK, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Calvert Retired School Personnel Assoc

    EIN 800607914 · Headquarters: St Leonard, MD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  67. Calvert Retired School Personnel Association Inc

    EIN 824644816 · Headquarters: Owings, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Calverton Citizens Association Inc

    EIN 520812256 · Headquarters: BELTSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Calverton Swim Club

    EIN 520811929 · Headquarters: Beltsville, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  70. Cambridge Apartments Inc

    EIN 522231301 · Headquarters: Rockville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Cambridge Chapter No 1084 Women of the Moose

    EIN 237164008 · Headquarters: Cambridge, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Cambridge Lodge 66 Af & Am

    EIN 237369342 · Headquarters: CAMBRIDGE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Camilla and Zack Hubert Foundation Inc

    EIN 581311685 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  74. Camp Airy Order of the Leaf Alumni

    EIN 521053523 · Headquarters: BALTIMORE, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  75. Camp Espa Inc

    EIN 520851766 · Headquarters: RHODESDALE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Camp Farthest Out Inc

    EIN 520819092 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  77. Camp Fire USA

    EIN 760704763 · Headquarters: Bowie, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  78. Camp Hemlock Inc

    EIN 134302830 · Headquarters: Columbia, MD, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  79. Camp Louise Circle Fund Inc

    EIN 521101309 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Camp Springs Civic Association Inc

    EIN 743041557 · Headquarters: Camp Springs, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Camp Springs Lodge No 2332 BPOE

    EIN 520851111 · Headquarters: Camp Springs, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Camp St Charles Inc

    EIN 520859035 · Headquarters: ISSUE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Camp Strawderman

    EIN 521981207 · Headquarters: Germantown, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Campaign for Sensible Cannabis Laws

    EIN 881717013 · Headquarters: Kensington, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  85. Campbell Foundation Inc

    EIN 520794348 · Headquarters: TIMONIUM, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  86. Campus Cabana Inc

    EIN 521234284 · Headquarters: TOWSON, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  87. Canisius College PAD Prelaw Chapter

    EIN 943103901 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Canoe Cruisers Association of Greater Washington D C Inc

    EIN 546152430 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Cantate Chamber Singers Inc

    EIN 521447309 · Headquarters: TAKOMA PARK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Cape St Claire Business & Lot Owners As

    EIN 521830883 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Cape St Claire Elementary School PTO Corporation

    EIN 521738635 · Headquarters: Annapolis, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. Cape St Claire Swim Club Inc

    EIN 520888272 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  93. Cape St Claire Vol Fire Co Inc

    EIN 526048769 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Capital Aikikai Inc

    EIN 521339454 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Capital Area Christian Homeschool Group

    EIN 830974497 · Headquarters: Crofton, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Capital Area Rainbowlers Association

    EIN 521937233 · Headquarters: GERMANTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Capital Camps

    EIN 521515202 · Headquarters: Rockville, MD, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Capital Dog Training Club of Washington Dc Inc

    EIN 237400896 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  99. Capital Mar Va Environmental Balancing Bureau

    EIN 237249458 · Headquarters: UPPER MARLBORO, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Capital Region Minority Supplier Development Council

    EIN 521047806 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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