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. Maryland Association of Secondary School Principals Inc

    EIN 520974554 · Headquarters: Arnold, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Maryland Association of Youth Services Bureaus Inc

    EIN 521592961 · Headquarters: Greenbelt, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Maryland Automobile Dealers Association

    EIN 530233050 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Maryland Axum Football Club

    EIN 812667523 · Headquarters: SILVER SPRING, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  5. Maryland Baptist Church

    EIN 812047707 · Headquarters: CATONSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  6. Maryland Basketball Officials Assn Inc

    EIN 521991115 · Headquarters: OXON HILL, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. Maryland Bass Chapter State Fed Inc

    EIN 521714035 · Headquarters: WELCOME, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Maryland Beer Wholesalers Assoc Inc C/o Nicholas G Manis

    EIN 521673043 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Maryland Black Caucus Foundati

    EIN 521417532 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Maryland Board of Football Officials Inc

    EIN 521071263 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  11. Maryland Camaro Club Inc

    EIN 521570365 · Headquarters: Eldersburg, MD, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  12. Maryland Campaign for a Nuclear Weapon Freeze Inc

    EIN 521302841 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Maryland Cantabile

    EIN 800855566 · Headquarters: Hyattsville, MD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  14. Maryland Chamber Foundation

    EIN 521557804 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Maryland Chamber of Commerce Inc

    EIN 521784310 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. Maryland Chapter

    EIN 300600924 · Headquarters: ellicott city, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  17. Maryland Chapter Acc Inc

    EIN 521859537 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  18. Maryland Chapter American Society of Landscape Architects

    EIN 521147586 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. Maryland Chapter National Organization for Women Inc

    EIN 521163855 · Headquarters: Silver Spring, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. Maryland Chapter of Financial Managers Society

    EIN 273871020 · Headquarters: Timonium, MD, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  21. Maryland Chapter of Healthcare Information and Management Systems Society

    EIN 520040048 · Headquarters: Columbia, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. Maryland Chapter of the American Academy of Pediatrics

    EIN 521630552 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Maryland Chapter of the Appraisal Institute

    EIN 521730934 · Headquarters: Forest Hill, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Maryland Chapter of the Associated General Contractors of America Inc

    EIN 520572224 · Headquarters: LUTHERVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Maryland Chapter of the Association of Legal Administrators

    EIN 521238708 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  26. Maryland Chapter of the National Association of Directors Of

    EIN 521798602 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Maryland Charter Boat Association Inc

    EIN 521771134 · Headquarters: Conowingo, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Maryland Chess Association Inc

    EIN 521035369 · Headquarters: Towson, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  29. Maryland Chiefs of Police Assoc

    EIN 521235249 · Headquarters: WESTMINSTER, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  30. Maryland Children's Educational Defense Fund Inc C/o Gordon Feinblat Llc

    EIN 814063966 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  31. Maryland Chiropractic Association

    EIN 237060635 · Headquarters: FOREST HILL, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. Maryland Christmas Tree Association Inc

    EIN 521551254 · Headquarters: Elkton, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Maryland Club

    EIN 520403190 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Maryland Coalition Against Pornography Inc

    EIN 521642693 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Maryland Coalition for Inclusive Energy Solutions Inc

    EIN 933599152 · Headquarters: LUSBY, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  36. Maryland Colony Nsnew

    EIN 333272407 · Headquarters: Waldorf, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Maryland Company Waynes Light Infantry Corps Inc

    EIN 521217959 · Headquarters: Keedysville, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  38. Maryland Competition Riders

    EIN 993986481 · Headquarters: westminster, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  39. Maryland Correctional Administrators Association

    EIN 521790321 · Headquarters: LEONARDTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Maryland Counicl of Directors of Volunteer Services

    EIN 521555989 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Maryland Creative Problem Solvers Inc

    EIN 521595994 · Headquarters: WALDORF, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  42. Maryland Crime Victims' Resource Center

    EIN 521376744 · Headquarters: Upper Marlboro, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Maryland Criminal Defense Attorneys Association

    EIN 521738951 · Headquarters: ELKRIDGE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Maryland Criminal Justice Association Incorporated

    EIN 521495182 · Headquarters: Sykesville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Maryland Crop Improvement Association Inc

    EIN 521219442 · Headquarters: PRESTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. Maryland D C Labor Building Inc

    EIN 521412480 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Maryland Dairy Goat Association Inc

    EIN 237110149 · Headquarters: Gaithersburg, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Maryland Dairy Industry Association Inc

    EIN 522064627 · Headquarters: Dickerson, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  49. Maryland Dc Chapter of the Socind & Office Realtors

    EIN 521313308 · Headquarters: TOWSON, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  50. Maryland Dc Society of Enrolled Agents Inc

    EIN 521755235 · Headquarters: SEVERNA PARK, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Maryland Dc Society of the American

    EIN 237029758 · Headquarters: CUMBERLAND, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. Maryland Defenders Inc

    EIN 462453783 · Headquarters: North East, MD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  53. Maryland Delaware and District of Columbia Elks Assoc

    EIN 520562752 · Headquarters: Crownsville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Maryland Delaware District of Columbia Beverage Association Inc

    EIN 520636608 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  55. Maryland Delaware Washington Dc Jewelers Assoc

    EIN 526054424 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  56. Maryland Delaware Water Well Assn

    EIN 520848681 · Headquarters: Forest Hill, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Maryland Dental Hygienists' Association Inc

    EIN 521662440 · Headquarters: ELLICOTT CITY, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  58. Maryland Directors of Ncha

    EIN 522159956 · Headquarters: Phoenix, MD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  59. Maryland Dressage and Combined Training Association

    EIN 991344277 · Headquarters: Parkville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Maryland Dressage Association

    EIN 521287189 · Headquarters: JARRETTSVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Maryland Economic Development Corporation

    EIN 521376562 · Headquarters: Baltimore, MD, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Maryland Egg Council Inc

    EIN 521180139 · Headquarters: ANNAPOLIS, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Maryland Enlisted Association of the National Guard of the United S

    EIN 521091225 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Maryland Entomological Society

    EIN 521600236 · Headquarters: ELLICOTT CITY, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Maryland Equestrian Foundation Inc

    EIN 521441396 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Maryland Families Choices Foundation Inc

    EIN 921831246 · Headquarters: ACCOKEEK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  67. Maryland Family Action Inc

    EIN 921280485 · Headquarters: ANNAPOLIS, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  68. Maryland Farm Bureau Inc

    EIN 520403490 · Headquarters: Davidsonville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Maryland Federation of Art Inc

    EIN 520895806 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Maryland Federation of Business and Professional Women

    EIN 237293180 · Headquarters: BRANDYWINE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Maryland Federation of the Council for Exceptional Children Inc

    EIN 521357271 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Maryland Feline Society Inc

    EIN 521331013 · Headquarters: Parkville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Maryland FFA Association INC

    EIN 520796956 · Headquarters: Funkstown, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  74. Maryland Ffa Foundation Inc

    EIN 521354382 · Headquarters: ELDERSBURG, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. Maryland Fire Chiefs Association Inc

    EIN 526054423 · Headquarters: HAGERSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Maryland Fire Service Personnel Qualifications Board Inc

    EIN 521589625 · Headquarters: College Park, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Maryland Food Bank

    EIN 521135690 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Maryland for All Families

    EIN 461084471 · Headquarters: New Market, MD, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  79. Maryland Foster Parent Association Washington County Inc

    EIN 300709229 · Headquarters: Williamsport, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Maryland Foundation for Research & Econo

    EIN 521772622 · Headquarters: WOODBINE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  81. Maryland Foundation of Dentistry

    EIN 521962484 · Headquarters: COLUMBIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Maryland Foxhound Club

    EIN 473998876 · Headquarters: Woodbine, MD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  83. Maryland Free Enterprise Foundation Inc Fka Md Business for Responsive Gov't

    EIN 521428852 · Headquarters: WOODBINE, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  84. Maryland Fund for Sensible Drug Policy

    EIN 332512768 · Headquarters: Reisterstown, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Maryland Future Business Leaders of America-phibeta Lambda Foundation

    EIN 272319095 · Headquarters: Pasadena, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Maryland Gay and Lesbian Corporate Council Inc

    EIN 453745037 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  87. Maryland Genealogical Society Incorporated

    EIN 526068642 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  88. Maryland General Service Inc of Alcoholics Anonymous

    EIN 521528396 · Headquarters: Lutherville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Maryland Gerontological Association

    EIN 521375669 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Maryland Government Relations Association Inc

    EIN 521570108 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Maryland Grain Producers Utilization Board Inc

    EIN 521752000 · Headquarters: CHESTER, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Maryland Health Information Management Association

    EIN 521327868 · Headquarters: MONTGOMERY VILLAGE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  93. Maryland Hillel

    EIN 520749507 · Headquarters: COLLEGE PARK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Maryland Hispanic Bar Association Inc

    EIN 521833355 · Headquarters: BURTONSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  95. Maryland Hispanic Chamber of Commerce

    EIN 521908805 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  96. Maryland Holstein Association Inc

    EIN 526035335 · Headquarters: Dickerson, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Maryland Horse Council Inc

    EIN 521427779 · Headquarters: LISBON, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  98. Maryland Hospital Association

    EIN 520647639 · Headquarters: ELKRIDGE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Maryland Hospital Education & Research Foundation Inc

    EIN 520901664 · Headquarters: ELKRIDGE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Maryland Hotel & Lodging Association Inc

    EIN 526056372 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

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