Nonprofits in Maryland

Nonprofits in Maryland. Browse 47,413 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. National Institute of Health Alumni Association Inc

    EIN 521685234 · Headquarters: BETHESDA, MD, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  2. National Institute of Innovationand Technology Inc

    EIN 871012023 · Headquarters: HANOVER, MD, USA · Science & Technology · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. National Institute of Packaging Handling and Logistics Engineers

    EIN 526053188 · Headquarters: PERRY HALL, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. National Institute of Vehicle Dynamics Corp

    EIN 300135051 · Headquarters: ROCKVILLE, MD, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  5. National Intelligence Education Foundation Inc

    EIN 521392126 · Headquarters: BETHESDA, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. National Interscholastic Lacrosse Coaches Association

    EIN 460873207 · Headquarters: Baltimore, MD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. National Investment Center for Seniors Housing & Care

    EIN 521802714 · Headquarters: Annapolis, MD, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. National Ives Royal Order of Jesteretts

    EIN 521356057 · Headquarters: Middle River, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. National Ives Royal Order of Jesteretts

    EIN 521356058 · Headquarters: White Plains, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. National Jewish Fund for Legal Education

    EIN 464219403 · Headquarters: BALTIMORE, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. National Junior Horticultural Foundation Inc

    EIN 042348782 · Headquarters: North East, MD, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  12. National Kappa Kappa Iota Inc

    EIN 742307869 · Headquarters: Mt Airy, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. National Katyn Memorial Foundation Inc

    EIN 522304861 · Headquarters: Baltimore, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. National Kidney Foundation of Maryland Inc

    EIN 526069952 · Headquarters: LUTHERVILLE, MD, USA · Medical Research · Latest available filing year: 2017 · Primary form: IRS Form 990

  15. National Kitchen & Bath Assoc

    EIN 541516046 · Headquarters: Gaithersburg, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. National Ku Klux Klan Museum Inc

    EIN 261654936 · Headquarters: SILVER SPRING, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  17. National Law Enforcement Integrity Institute Inc

    EIN 521949472 · Headquarters: Annapolis, MD, US · Crime & Legal Related · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  18. National Leadership Development Institute Inc

    EIN 832913219 · Headquarters: Laurel, MD, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. National League for Nursing Inc

    EIN 530239798 · Headquarters: La Plata, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. National League of American Pen Women Inc 421

    EIN 010945564 · Headquarters: Jarrettsville, MD, US · Recreation & Sports · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  21. National League of American Penwomen Inc

    EIN 522003458 · Headquarters: Annapolis, MD, US · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  22. National League of Postmasters of the United States

    EIN 526054926 · Headquarters: LUSBY, MD, US · Recreation & Sports · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  23. National League of Women Lobbyists Inc

    EIN 872916170 · Headquarters: Annapolis, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. National Lutheran Communities & Services

    EIN 472584315 · Headquarters: FREDERICK, MD, United States · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. National Lutheran Home for the Aged Inc

    EIN 262222476 · Headquarters: FREDERICK, MD, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. National Mall Coalition

    EIN 030403825 · Headquarters: Rockville, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. National Management Assoc

    EIN 550875603 · Headquarters: GAITHERSBURG, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  28. National Management Association

    EIN 300674235 · Headquarters: Windsor Mill, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  29. National Marbles Tournament Inc

    EIN 521240384 · Headquarters: Pasadena, MD, US · Recreation & Sports · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  30. National Marine Educators Association

    EIN 050413784 · Headquarters: College Park, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. National Marine Electronics Association

    EIN 510137740 · Headquarters: Severna Park, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. National Marine Sanctuary Foundation

    EIN 943370994 · Headquarters: SILVER SPRING, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. National Medical Association

    EIN 536010805 · Headquarters: silver spring, MD, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. National Mental Health Education and Research

    EIN 872306633 · Headquarters: Elliott City, MD, US · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. National Metal Decorators Association Inc

    EIN 366068106 · Headquarters: Sykesville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. National Minority Health Association

    EIN 222828038 · Headquarters: Owings Mills, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  37. National Minority Women Association in Transportation

    EIN 871186378 · Headquarters: Ellicott City, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. National Museum of Civil War Medicine I

    EIN 521700738 · Headquarters: FREDERICK, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. National Museum of Graphic Arts Inc

    EIN 208947188 · Headquarters: Finksburg, MD, US · Arts, Culture & Humanities · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  40. National Museum of Language Inc

    EIN 522085197 · Headquarters: Greenbelt, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. National Music and Mind Association

    EIN 833714631 · Headquarters: Clinton, MD, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. National Music Therapy Registry

    EIN 232578682 · Headquarters: SILVER SPRING, MD, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  43. National Naval Officers Association Foundation

    EIN 332921537 · Headquarters: Clinton, MD, US · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. National Non-profit Alliance

    EIN 990500493 · Headquarters: Clarksburg, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. National Office Child Development Center Inc

    EIN 521609497 · Headquarters: LANHAM SEABROOK, MD, US · Education · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  46. National Opossum Society Inc

    EIN 330562308 · Headquarters: CATONSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  47. National Organization for the Advancement of Haiti

    EIN 521864566 · Headquarters: Silver Spring, MD, USA · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  48. National Organization for Women Inc

    EIN 521163826 · Headquarters: Capitol Heights, MD, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. National Organization for Women Inc

    EIN 521163839 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. National Organization for Women Inc

    EIN 521163845 · Headquarters: Chesapeake Beach, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. National Organization for Women Inc

    EIN 521181267 · Headquarters: Timonium, MD, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  52. National Organization for Women Inc

    EIN 521309804 · Headquarters: HYATTSVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  53. National Organization for Women Inc

    EIN 521679734 · Headquarters: Hagerstown, MD, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  54. National Organization of Alpha Sigma Kappa Women in Technical Stu

    EIN 202382571 · Headquarters: BALTIMORE, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  55. National Organization of Alpha Sigma Kappa Women in Technical Stu

    EIN 261187197 · Headquarters: Finksburg, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. National Organization of Bar Counsel Inc

    EIN 521090005 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. National Organization of Black Law Enforcement Executives Noble

    EIN 521497468 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. National Organization of Black Women in Law Enforcement

    EIN 521453748 · Headquarters: Sunderland, MD, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. National Organization of Chamorro Veterans in America Inc

    EIN 461391161 · Headquarters: Upper Marlboro, MD, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  60. National Organization of Concerned Black Men Inc

    EIN 521790616 · Headquarters: HYATTSVILLE, MD, USA · Youth Development · Latest available filing year: 2019 · Primary form: IRS Form 990

  61. National Organization of Gay and Lesbian Scientist and Technical

    EIN 208993720 · Headquarters: Baltimore, MD, US · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  62. National Organization of Mothers of Twins Clubs Inc

    EIN 200959179 · Headquarters: Mechanicsville, MD, US · Human Services · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  63. National Organization of Mothers of Twins Clubs Inc

    EIN 521402407 · Headquarters: Ellicott, MD, US · Human Services · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  64. National Organization of Mothers of Twins Clubs Inc

    EIN 522215805 · Headquarters: FREDERICK, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. National Organization of Mothers of Twins Clubs Inc

    EIN 522319992 · Headquarters: ARNOLD, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. National Organization of People of Color Aganist Suicide

    EIN 742897913 · Headquarters: Rockville, MD, US · Mental Health & Crisis Intervention · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  67. National Organization of Retired State Troopers Norst

    EIN 812082057 · Headquarters: Randallstown, MD, US · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. National Organization of Sierra Leoneans in N America Aka Noslina

    EIN 522099935 · Headquarters: GAITHERSBURG, MD, US · Human Services · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  69. National Origin Alliance

    EIN 844279735 · Headquarters: Lutherville Timonium, MD, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. National Ornamental Goldfish Growers Association Inc

    EIN 521228580 · Headquarters: Thurmont, MD, US · Food, Agriculture & Nutrition · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  71. National Orphan Relief Foundation Inc

    EIN 822131950 · Headquarters: ROCKVILLE, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  72. National Outdoor Foundation Inc

    EIN 232945469 · Headquarters: Cambridge, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. National Pan Hellenic Council Inc of Metropolitan Baltimore

    EIN 522024088 · Headquarters: BALTIMORE, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. National Pan Hellenic Council Prince Georges County

    EIN 853870330 · Headquarters: Capitol Heights, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. National Pan-hellenic Council Foundation International

    EIN 811981553 · Headquarters: Brandywine, MD, US · Public & Societal Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. National Pan-hellenic Council of Howard County

    EIN 352896053 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. National Pan-hellenic Council of Montgomery County Md Foundation

    EIN 921719547 · Headquarters: Silver Spring, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. National Pancreas Foundation

    EIN 232935929 · Headquarters: BETHESDA, MD, USA · Medical Research · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. National Park Trust Inc

    EIN 521691924 · Headquarters: ROCKVILLE, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. National Philatelic Exhibitions of Wash Dc Inc

    EIN 521139227 · Headquarters: Laurel, MD, US · Recreation & Sports · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  81. National Philharmonic Orchestra and Chorale of Montgomery County Inc

    EIN 521361650 · Headquarters: NORTH BETHESDA, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. National Phlebotomy Association

    EIN 521241927 · Headquarters: LANDOVER, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. National Pike Empowerment & Resource Center Inc

    EIN 833836898 · Headquarters: Baltimore, MD, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. National Pinball Musuem

    EIN 522111626 · Headquarters: Silver Sping, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2012 · Primary form: IRS Form 990

  85. National Pipe Band Foundation

    EIN 651201495 · Headquarters: BALTIMORE, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  86. National Plastering Industry Joint Apprenticeship Trust Fund

    EIN 520852330 · Headquarters: COLUMBIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. National Postdoctoral Association

    EIN 203577441 · Headquarters: Bethesda, MD, USA · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. National Prayer Garden Inc

    EIN 392053785 · Headquarters: Bryans Road, MD, US · Religion Related · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  89. National Professional Services Development Center

    EIN 882974500 · Headquarters: PIKESVILLE, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. National Ptsd Foundation Inc

    EIN 472065455 · Headquarters: NORTH EAST, MD, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  91. National Quantum Literacy Network Corpor

    EIN 873518295 · Headquarters: Glen Burnie, MD, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  92. National Railway Historical Society Potomac Chapter Inc

    EIN 237352861 · Headquarters: Kensington, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. National Realty Development Corp

    EIN 522122260 · Headquarters: EASTON, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. National Remember Our Troops Campaign I

    EIN 260098940 · Headquarters: Essex, MD, USA · Public & Societal Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  95. National Rental Home Council

    EIN 474822520 · Headquarters: ROCKVILLE, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. National Retina Institute Research

    EIN 680514528 · Headquarters: TOWSON, MD, USA · Medical Research · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  97. National Retinitis Pigmentosa Foundation

    EIN 522072391 · Headquarters: COLUMBIA, MD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. National Road Heritage Foundation

    EIN 043831452 · Headquarters: BOONSBORO, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  99. National Rural Letter Carriers Association

    EIN 237233948 · Headquarters: POOLESVILLE, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  100. National Rural Letter Carriers Association

    EIN 237233949 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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