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 Association of Letter Carriers

    EIN 526074568 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. National Association of Letter Carriers

    EIN 526074588 · Headquarters: laurel, MD, US · Employment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  3. National Association of Letter Carriers

    EIN 526074599 · Headquarters: Leonardtown, MD, US · Employment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  4. National Association of Letter Carriers

    EIN 901500184 · Headquarters: Ellerslie, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. National Association of Letter Carriers Branch 3825

    EIN 526054692 · Headquarters: Rockville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. National Association of Letter Carriers Oakland 2961

    EIN 526074579 · Headquarters: OAKLAND, MD, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. National Association of Letter Carriers Oriole Branch 176

    EIN 520736006 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. National Association of Military Medics and Corpsmen

    EIN 882227114 · Headquarters: Chester, MD, US · Human Services · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  9. National Association of Miniature Enthusiasts

    EIN 260074951 · Headquarters: Westminster, MD, US · Recreation & Sports · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  10. National Association of Miniature Enthusiasts

    EIN 311436087 · Headquarters: Towson, MD, US · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  11. National Association of Miniature Enthusiasts

    EIN 311454754 · Headquarters: Damascus, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. National Association of Miniature Enthusiasts

    EIN 770665947 · Headquarters: Burtonsville, MD, US · Recreation & Sports · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  13. National Association of Miniature Enthusiasts

    EIN 900736509 · Headquarters: Dayton, MD, US · Recreation & Sports · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  14. National Association of Miniature Enthusiasts

    EIN 900752960 · Headquarters: Potomac, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. National Association of Miniature Enthusiasts

    EIN 911873189 · Headquarters: Westminster, MD, US · Recreation & Sports · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  16. National Association of Miniature Enthusiasts

    EIN 911883689 · Headquarters: Mitchellville, MD, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  17. National Association of Miniture Enthusiasts

    EIN 900795424 · Headquarters: White Hall, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  18. National Association of Minority Automobile Dealers

    EIN 382326624 · Headquarters: UPPER MARLBORO, MD, USA · Civil Rights, Social Action & Advocacy · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. National Association of Minority Contractors Dmv Chapter Inc

    EIN 871111707 · Headquarters: ISSUE, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  20. National Association of Minority Contractors Inc

    EIN 941709851 · Headquarters: HYATTSVILLE, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. National Association of Mothers and Daughters United Worldwide

    EIN 462071612 · Headquarters: Severn, MD, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  22. National Association of Negro Busin Ess and Professional Womens C

    EIN 522174770 · Headquarters: Mitchellville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. National Association of Negro Business and Professional Womens C

    EIN 520796540 · Headquarters: Pikesville, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  24. National Association of Negro Business and Professional Womens C

    EIN 521542690 · Headquarters: randallstown, MD, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. National Association of Negro Business and Professional Womens C

    EIN 522153047 · Headquarters: Frederick, MD, US · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. National Association of Neonatal Nurses

    EIN 521640601 · Headquarters: Crofton, MD, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  27. National Association of Nigerian

    EIN 465724843 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. National Association of Oduduwa Heritage Inc

    EIN 863548199 · Headquarters: Baltmore, MD, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. National Association of Orthopaedic Nurses Inc

    EIN 251420121 · Headquarters: Forest Hill, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. National Association of Parliamentarians

    EIN 521349995 · Headquarters: Cockeysville, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  31. National Association of Passport and Visa Services

    EIN 300247913 · Headquarters: SILVER SPRING, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  32. National Association of People with AIDS

    EIN 521540690 · Headquarters: SILVER SPRING, MD, USA · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2010 · Primary form: IRS Form 990

  33. National Association of Presort Mailers

    EIN 341512673 · Headquarters: Annapolis, MD, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. National Association of Preventive Kidney Care and Counseling Inc

    EIN 311782779 · Headquarters: Annapolis, MD, US · Mental Health & Crisis Intervention · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  35. National Association of Professional Asian-american Women

    EIN 521555185 · Headquarters: rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  36. National Association of Real Estate Brokers Found

    EIN 262529169 · Headquarters: LANDHAM, MD, USA · Employment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. National Association of Real Estate Brokers Inc

    EIN 366125210 · Headquarters: LANHAM, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2023 · Primary form: IRS Form 990

  38. National Association of Retired & Veteran Railway Employees

    EIN 236445988 · Headquarters: CUMBERLAND, MD, US · Public & Societal Benefit · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  39. National Association of Scholars

    EIN 521763524 · Headquarters: Baltimore, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. National Association of School Nurses

    EIN 520886492 · Headquarters: SILVER SPRING, MD, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. National Association of School Psychologists

    EIN 237044121 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. National Association of School Psychologists Education & Research Trust

    EIN 521737958 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. National Association of Securities

    EIN 721613889 · Headquarters: ROCKVILLE, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2012 · Primary form: IRS Form 990-EZ

  44. National Association of State Directors of Career Technical Education Consortium

    EIN 521646898 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. National Association of State Utility Consumer Advocates (Nasuca)

    EIN 591986067 · Headquarters: ODENTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. National Association of Surety Bond Producers Inc

    EIN 132657769 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. National Association of Tax Professionals Inc

    EIN 521913468 · Headquarters: Charlotte Hall, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. National Association of Teachers of Singing

    EIN 270944431 · Headquarters: SILVER SPRING, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. National Association of the Deaf

    EIN 941358295 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. National Association of the Remodeling Industry

    EIN 263557171 · Headquarters: Millers, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  51. National Association of Watch and Clock Collectors Inc

    EIN 271269477 · Headquarters: Glen Arm, MD, US · Recreation & Sports · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  52. National Association of Women in Construction

    EIN 526054684 · Headquarters: Waldorf, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. National Association of Women in Construction

    EIN 526075644 · Headquarters: Parkton, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  54. National Association of Women in Government Contracting

    EIN 834031613 · Headquarters: Bowie, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. National Association State Directors of Adult Education

    EIN 541552617 · Headquarters: BALTIMORE, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. National Association to Restore Pride in Americas Capital Inc

    EIN 521999756 · Headquarters: Chevy Chase, MD, US · Civil Rights, Social Action & Advocacy · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  57. National Associationof Unemployment Insurance Appeals Professionals

    EIN 942768000 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  58. National AssociatNational Assoc of Collegiate Concessionares Inc

    EIN 391866665 · Headquarters: Mount Airy, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. National Associaton of Retired & Veteran Railway Employees Inc

    EIN 522064618 · Headquarters: KNOXVILLE, MD, US · Public & Societal Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  60. National Asssociation of Hispanic Nurses

    EIN 452717113 · Headquarters: White Plains, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. National Auto Auction Association

    EIN 846045987 · Headquarters: FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. National Automatic Sprinkler Industry Apprentice & Training Fund

    EIN 116082331 · Headquarters: LANDOVER, MD, USA · Employment · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. National Automatic Sprinkler Industry Welfare Fund

    EIN 530215881 · Headquarters: Landover, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. National Automatic Sprinkler Local 669 Ua Education Fund

    EIN 526055213 · Headquarters: COLUMBIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. National Automatic Sprinkler Metal Trades Welfare Fund

    EIN 237351551 · Headquarters: LANDOVER, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  66. National Barrel & Drum Assoc Inc

    EIN 530191381 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. National BDPA Inc

    EIN 232323458 · Headquarters: Largo, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. National Black Child Development Institute

    EIN 520908178 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  69. National Black Cultural Information Trust Inc

    EIN 862145581 · Headquarters: Waldorf, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. National Black Nurses Association Inc

    EIN 208869794 · Headquarters: Pikesville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. National Black Nurses Association Inc

    EIN 822542775 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  72. National Black Worker Center Project Inc

    EIN 474262220 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  73. National Blood Foundation Research and Education Trust Fund

    EIN 522059102 · Headquarters: BETHESDA, MD, USA · Health Care · Latest available filing year: 2022 · Primary form: IRS Form 990

  74. National Bmx Association

    EIN 854230106 · Headquarters: Pasadena, MD, US · Recreation & Sports · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  75. National Board for Certification in Occupational Therapy Inc

    EIN 521620299 · Headquarters: GAITHERSBURG, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. National Board of Nutrition Support Certification Inc

    EIN 521946325 · Headquarters: Silver Spring, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. National Board of Physician Nutrition Specialists Inc

    EIN 464032359 · Headquarters: Rockville, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. National Board of Podiatric Medical Examiners

    EIN 440663070 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. National Board of the Rocks Inc

    EIN 541974652 · Headquarters: Forestville, MD, USA · Public & Societal Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. National Boating Federation

    EIN 236433793 · Headquarters: Annapolis, MD, US · Recreation & Sports · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  81. National Book Critics Circle

    EIN 043835193 · Headquarters: Baltimore, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  82. National Breast and Ovarian Cancer Coalition

    EIN 208678930 · Headquarters: Baltimore, MD, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  83. National Bureau of Real Estate Research

    EIN 341491581 · Headquarters: Bethesda, MD, US · Housing & Shelter · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  84. National Capital Affordable Housing Inc

    EIN 522054953 · Headquarters: ROCKVILLE, MD, USA · Housing & Shelter · Latest available filing year: 2019 · Primary form: IRS Form 990

  85. National Capital Area Branch of the Assoc for Laboratory Animals

    EIN 546076255 · Headquarters: FREDERICK, MD, USA · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. National Capital Area Chapter Inc

    EIN 815265337 · Headquarters: Silver Spring, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. National Capital Area Chapter of the Alumni Association of Hunter

    EIN 526045347 · Headquarters: Potomac, MD, US · Religion Related · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  88. National Capital Area Council Boy Scouts of America

    EIN 530204610 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. National Capital Area Garden Clubs Environmental Consultants Council

    EIN 273509112 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  90. National Capital Area Lhasa Apso Club

    EIN 237108266 · Headquarters: HUNTINGTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. National Capital Area Neurotrauma Society Inc

    EIN 331774410 · Headquarters: Cabin John, MD, US · Science & Technology · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. National Capital Area Skeptics

    EIN 521522327 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. National Capital Area Square Dance Leaders Association Inc

    EIN 526056370 · Headquarters: HOLLYWOOD, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. National Capital Area Translators Association

    EIN 300664146 · Headquarters: Gaithersburg, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. National Capital Astronomers

    EIN 521129165 · Headquarters: DAVIDSONVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. National Capital B'nai B'rith Housing Foundation Inc

    EIN 521063283 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. National Capital Baptist Conventiondc Vicinity

    EIN 300478283 · Headquarters: LANHAM, MD, USA · Religion Related · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  98. National Capital Chapter

    EIN 582682521 · Headquarters: Upper Marlboro, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. National Capital Chapter Academy of Chmm

    EIN 320064687 · Headquarters: Gaithersburg, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. National Capital Chapter of the American Concrete Institute Inc

    EIN 521152741 · Headquarters: CATONSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

First page and all pages