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. Optimist International

    EIN 526056380 · Headquarters: Rockville, MD, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  2. Optimist International

    EIN 526056423 · Headquarters: Towson, MD, US · Youth Development · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  3. Optimist International

    EIN 526056562 · Headquarters: Timonium, MD, US · Youth Development · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  4. Optimist International

    EIN 526083645 · Headquarters: Prince Frederick, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  5. Optimist International

    EIN 831198572 · Headquarters: Mechanicsville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Optimist International

    EIN 921418082 · Headquarters: WALDOR, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  7. Optimist International 33097 Oc of Westminster Gamber

    EIN 237008717 · Headquarters: FINKSBURG, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  8. Optimist International 33211 Ocean City - Berlin Md

    EIN 237249869 · Headquarters: OCEAN PINES, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Optimist International 33270-Optimist Club of Solomons Md

    EIN 237396549 · Headquarters: SOLOMONS, MD, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Optimist International Carroll County - Freedom District Maryland

    EIN 526062686 · Headquarters: SYKESVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  11. Optimist International Hereford Optimist Club

    EIN 912134751 · Headquarters: MONKTON, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Optimist Interntional

    EIN 823360744 · Headquarters: Salisbury, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Optimum Youth Performance

    EIN 264396034 · Headquarters: annapolis, MD, US · Youth Development · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  14. Optiven Foundation for Peace and Development USA

    EIN 475288404 · Headquarters: BURTONSVILLE, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Optometric Extension Program Foundation Inc

    EIN 730664688 · Headquarters: TIMONIUM, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Opu Maryland

    EIN 920397666 · Headquarters: WINDSOR MILL, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  17. Opus Community Music School Inc

    EIN 271033573 · Headquarters: ELDERSBURG, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2023 · Primary form: IRS Form 990

  18. Opus Concert Theatre Inc

    EIN 474805920 · Headquarters: Columbia, MD, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  19. Opus Outreach Inc

    EIN 921305119 · Headquarters: LAUREL, MD, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Opuusamddcva

    EIN 881498774 · Headquarters: Laurel, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Or Haner Inc

    EIN 522243222 · Headquarters: Pikesville, MD, USA · Religion Related · Latest available filing year: 2022 · Primary form: IRS Form 990

  22. Ora-ekpen Association USA Inc

    EIN 770646938 · Headquarters: SILVER SPRING, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Oracle of Gods Temple

    EIN 842529748 · Headquarters: Columbia, MD, USA · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Oracle Set Foundation Inc

    EIN 522197477 · Headquarters: Suitland, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Oracle Visions Inc

    EIN 473683360 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  26. Oracles & Utterances Incorporated

    EIN 522187709 · Headquarters: Dunkirk, MD, US · Religion Related · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  27. Oraifite Community Washington Metropolis Inc

    EIN 850527177 · Headquarters: Montgomery, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Orajen Inc

    EIN 853808318 · Headquarters: Upper Marlboro, MD, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Oramore

    EIN 934503419 · Headquarters: Baltimore, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Orange Alliance

    EIN 461067989 · Headquarters: Silver Spring, MD, US · Youth Development · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  31. Orange County Electrical Industry Health

    EIN 956041108 · Headquarters: rockville, MD, USA · Mutual & Membership Benefit · Latest available filing year: 2011 · Primary form: IRS Form 990

  32. Orange Note Inc

    EIN 862092192 · Headquarters: Greenbelt, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Orangutan Watch Inc

    EIN 364648456 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  34. Orans- the Campaign for Relational Leadership Inc

    EIN 471244131 · Headquarters: Baltimore, MD, US · Public & Societal Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  35. Orchard Beach Volunteer Fire Dept

    EIN 526009540 · Headquarters: Glen Burnie, MD, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Orchards Association Inc

    EIN 526081445 · Headquarters: BALTIMORE, MD, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Orcid Inc

    EIN 275142743 · Headquarters: BETHESDA, MD, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  38. Order of Ahepa

    EIN 237565985 · Headquarters: Oxon Hill, MD, US · Mutual & Membership Benefit · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  39. Order of Ahepa

    EIN 237566004 · Headquarters: WESTMINSTER, MD, USA · Mutual & Membership Benefit · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Order of Alhambra Convention Inc

    EIN 522046796 · Headquarters: BALTIMORE, MD, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  41. Order of Eastern Star of Maryland

    EIN 526043521 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Order of Saint Stephen Deacon

    EIN 465362241 · Headquarters: Catonsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Order of the Alhambra

    EIN 237505718 · Headquarters: Severna Park, MD, US · Mutual & Membership Benefit · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  44. Order of the Alhambra

    EIN 271310930 · Headquarters: Baltimore, MD, US · Mutual & Membership Benefit · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  45. Order of the Alhambra

    EIN 843137289 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Order of the Alhambra Charity Fund Inc

    EIN 521571850 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Order of the Alhambrainc

    EIN 526014583 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Order of the Amaranth Inc

    EIN 237614550 · Headquarters: Rosedale, MD, US · Crime & Legal Related · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  49. Order of the Amaranth Inc Supreme Council

    EIN 237614549 · Headquarters: Bowie, MD, US · Crime & Legal Related · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  50. Order of the Crown in America

    EIN 811715079 · Headquarters: Chevy Chase, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Order of the Descendants of El Cid

    EIN 831589082 · Headquarters: Frederick, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Order of the Eastern Star of District of Columbia

    EIN 237137966 · Headquarters: ROCKVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Order of the Eastern Star of District of Columbia

    EIN 237137971 · Headquarters: Rockville, MD, US · Mutual & Membership Benefit · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  54. Order of the Eastern Star of District of Columbia

    EIN 237137982 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Order of the Eastern Star of District of Columbia

    EIN 530121318 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Order of the Eastern Star of Maryland

    EIN 237634985 · Headquarters: Frostburg, MD, US · Mutual & Membership Benefit · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  57. Order of the Eastern Star of Maryland

    EIN 237634989 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Order of the Eastern Star of Maryland

    EIN 237634998 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Order of the Eastern Star of Maryland

    EIN 237635000 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Order of the Eastern Star of Maryland

    EIN 237635004 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Order of the Eastern Star of Maryland

    EIN 237635009 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Order of the Eastern Star of Maryland

    EIN 237635011 · Headquarters: Cockeysville, MD, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  63. Order of the Eastern Star of Maryland

    EIN 237635012 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Order of the Eastern Star of Maryland

    EIN 237635013 · Headquarters: Cockeysville, MD, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Order of the Eastern Star of Maryland

    EIN 237635017 · Headquarters: Cockeysville, MD, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Order of the Eastern Star of Maryland

    EIN 237635020 · Headquarters: Cockeysville, MD, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Order of the Eastern Star of Maryland

    EIN 237635032 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Order of the Eastern Star of Maryland

    EIN 237635033 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Order of the Eastern Star of Maryland

    EIN 237635038 · Headquarters: Cockeysville, MD, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  70. Order of the Eastern Star of Maryland

    EIN 237635040 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Order of the Eastern Star of Maryland

    EIN 237635041 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Order of the Eastern Star of Maryland

    EIN 237635044 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Order of the Eastern Star of Maryland

    EIN 237635045 · Headquarters: Cockeysville, MD, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  74. Order of the Eastern Star of Maryland

    EIN 237635050 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Order of the Eastern Star of Maryland

    EIN 237635051 · Headquarters: Cockeysville, MD, US · Mutual & Membership Benefit · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  76. Order of the Eastern Star of Maryland

    EIN 237635054 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Order of the Eastern Star of Maryland

    EIN 237635055 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Order of the Eastern Star of Maryland

    EIN 237635057 · Headquarters: Cockeysville, MD, US · Mutual & Membership Benefit · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  79. Order of the Eastern Star of Maryland

    EIN 237635058 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Order of the Eastern Star of Maryland

    EIN 237635060 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Order of the Eastern Star of Maryland

    EIN 237635062 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Order of the Eastern Star of Maryland

    EIN 237635065 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Order of the Eastern Star of Maryland

    EIN 237635071 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  84. Order of the Eastern Star of Maryland

    EIN 237635072 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Order of the Eastern Star of Maryland

    EIN 237635077 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Order of the Eastern Star of Maryland

    EIN 237635078 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Order of the Eastern Star of Maryland

    EIN 237635082 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Order of the Eastern Star of Maryland

    EIN 237635083 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Order of the Eastern Star of Md Grand Chapter

    EIN 520435078 · Headquarters: COCKEYSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  90. Order of the Eastern Star of Md Group Return

    EIN 237123447 · Headquarters: COCKEYSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  91. Order of the First Families of Maine

    EIN 030541029 · Headquarters: Gaithersburg, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Order of the First Scottish War of Independence 1296-1320

    EIN 333272676 · Headquarters: Gaithersburg, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Order of the Founders & Patriots of America

    EIN 363950255 · Headquarters: Timonium, MD, US · Arts, Culture & Humanities · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  94. Order of the Leaf Inc

    EIN 521699924 · Headquarters: Thurmont, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Order of the White Shrine of Jerusalem

    EIN 237514427 · Headquarters: Catonsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Ordered by the Lord Ministries & Outreach Center International

    EIN 900742614 · Headquarters: Baltimore, MD, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Ordinary Vets

    EIN 852769787 · Headquarters: Smithsburg, MD, US · Human Services · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  98. Oregon Foundation for Psychiatric Education

    EIN 934288123 · Headquarters: Severna Park, MD, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Oregon Ridge Nature Center Council

    EIN 521232428 · Headquarters: Cockeysville, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Orel Vine Global Inc

    EIN 873621438 · Headquarters: Upper Marlboro, MD, US · Education · Latest available filing year: 2021 · Primary form: IRS Form 990-N

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