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. Oasis Christian Center of Maryland Inc

    EIN 474592092 · Headquarters: Silver Spring, MD, USA · Religion Related · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  2. Oasis Community Support Services Inc

    EIN 851492658 · Headquarters: HAGERSTOWN, MD, USA · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Oasis Evolve Inc

    EIN 332825640 · Headquarters: Salisbury, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Oasis Foundation Inc Oasis Foundation Inc

    EIN 261849362 · Headquarters: Edgewater, MD, USA · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  5. Oasis of Living Waters Ministries Inc

    EIN 510572476 · Headquarters: Germantown, MD, USA · Religion Related · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  6. Oasis Outreach International Ministries Inc

    EIN 853298807 · Headquarters: OLNEY, MD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Oasis Resource Center Inc

    EIN 871417445 · Headquarters: WALDORF, MD, US · Human Services · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  8. Oba Olubin Oyinloye Foundation Inc

    EIN 882233463 · Headquarters: Laurel, MD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Oba Union Dmv Inc

    EIN 874744616 · Headquarters: BOWIE, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Obala Foundation Inc

    EIN 760840677 · Headquarters: Fulton, MD, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Obama Care for Africa Inc

    EIN 921336484 · Headquarters: FAIRMOUNT HGT, MD, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Obamas Children Inc

    EIN 383902126 · Headquarters: Gaithersburg, MD, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  13. Obasi Foundation Inc

    EIN 823159997 · Headquarters: REISTERSTOWN, MD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Ober Kaler Grimes & Shriver Foundation

    EIN 522121766 · Headquarters: BALTIMORE, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  15. Obibezenna Progressive Association Inc

    EIN 043619719 · Headquarters: Baltimore, MD, US · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Obinna and Onyinye Nwandu Foundation Inc

    EIN 921416434 · Headquarters: Laurel, MD, US · Religion Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Oboro Community Welfare Association USA-canada Inc

    EIN 834690648 · Headquarters: Bowie, MD, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Obowo Umunnabuike Foundation Inc

    EIN 462617248 · Headquarters: Beltsville, MD, US · International, Foreign Affairs & National Security · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  19. Obsidian Robotics Organization Inc

    EIN 394634974 · Headquarters: Port Tobacco, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Oc Aviation and Educators

    EIN 464773889 · Headquarters: Ocean City, MD, US · Education · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  21. Oc Vets 4 Pets

    EIN 464096602 · Headquarters: Ocean City, MD, US · Animal Related · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  22. Occ Providers Inc

    EIN 841948532 · Headquarters: OWINGS MILLS, MD, USA · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Occasional Symphony

    EIN 454488989 · Headquarters: Baltimore, MD, US · Arts, Culture & Humanities · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  24. Ocd Mid-atlantic Corporation

    EIN 272674833 · Headquarters: Silver Spring, MD, US · Mental Health & Crisis Intervention · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Ocean City Aviation Association Incorporated

    EIN 522051977 · Headquarters: Berlin, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Ocean City Beach Patrol Maryland Chapter of the United States Lifes

    EIN 820774331 · Headquarters: Ocean City, MD, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Ocean City Chamber of Commerce Foundation Inc

    EIN 272151222 · Headquarters: OCEAN CITY, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Ocean City Development Corporation

    EIN 522222484 · Headquarters: Ocean City, MD, US · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  29. Ocean City Drug & Alcohol Abuse Prevention Committee Inc

    EIN 611453374 · Headquarters: OCEAN CITY, MD, USA · Mental Health & Crisis Intervention · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  30. Ocean City Fools

    EIN 200720566 · Headquarters: Ocean City, MD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Ocean City Friends of the Library Inc

    EIN 521496543 · Headquarters: Ocean City, MD, US · Education · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  32. Ocean City Helping Heroes Charitable Foundation Inc

    EIN 874147636 · Headquarters: OCEAN CITY, MD, US · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  33. Ocean City Hotel Motel Restaurant Association Inc

    EIN 521044252 · Headquarters: OCEAN CITY, MD, USA · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. Ocean City Lady Knights Auxillary Inc

    EIN 841991075 · Headquarters: OCEAN CITY, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  35. Ocean City Light Tackle Club Inc

    EIN 471325466 · Headquarters: Catonsville, MD, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Ocean City Lions Charities Inc

    EIN 383698991 · Headquarters: OCEAN CITY, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  37. Ocean City Md Chamber of Commerce

    EIN 520710234 · Headquarters: OCEAN CITY, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Ocean City Museum Society Inc

    EIN 521148499 · Headquarters: OCEAN CITY, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Ocean City Paramedics Foundation Inc

    EIN 521720437 · Headquarters: OCEAN CITY, MD, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. Ocean City Parrot Head Club Inc

    EIN 522112522 · Headquarters: Ocean City, MD, US · Recreation & Sports · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  41. Ocean City Recreation & Parks Advisory Board

    EIN 521404497 · Headquarters: OCEAN CITY, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. Ocean City Reef Foundation Inc

    EIN 522066987 · Headquarters: BERLIN, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Ocean City Sister City Committee Inc

    EIN 522040868 · Headquarters: Ocean City, MD, US · International, Foreign Affairs & National Security · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  44. Ocean City Surf Club Inc

    EIN 611732045 · Headquarters: Ocean City, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Ocean City Volunteer Fire Company Ocean City Volunteer Fire Company

    EIN 521638260 · Headquarters: OCEAN CITY, MD, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2020 · Primary form: IRS Form 990

  46. Ocean City Waterfowl Inc

    EIN 900625175 · Headquarters: Ocean City, MD, US · Human Services · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  47. Ocean City-Berlin Optimist Youth Foundation Inc

    EIN 521806103 · Headquarters: Berlin, MD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Ocean City-berlin-opti Ms Inc

    EIN 521438321 · Headquarters: Ocean City, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Ocean Pines Association Inc

    EIN 520886058 · Headquarters: BERLIN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Ocean Pines Boat Club

    EIN 522015720 · Headquarters: OCEAN PINES, MD, US · Recreation & Sports · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  51. Ocean Pines Chamber of Commerce Inc

    EIN 521282903 · Headquarters: BERLIN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. Ocean Pines Childrens Theater

    EIN 311640641 · Headquarters: Berlin, MD, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  53. Ocean Pines Kiwanis Foundation Inc

    EIN 522160515 · Headquarters: Ocean Pines, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Ocean Pines Swim Team Inc

    EIN 521638798 · Headquarters: BERLIN, MD, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Ocean Pines Volunteer Fire Department Incorporated

    EIN 237405884 · Headquarters: OCEAN PINES, MD, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Ocean Research Project Inc

    EIN 455439654 · Headquarters: ANNAPOLIS, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  57. Ocean Security International

    EIN 465242104 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  58. OceanitesInc

    EIN 521530218 · Headquarters: Chevy Chase, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Oceantic Network Inc

    EIN 463553839 · Headquarters: BALTIMORE, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Oces Pta Inc

    EIN 201653134 · Headquarters: OCEAN CITY, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. Ochan Self-help Alliance Inc

    EIN 262342374 · Headquarters: Baltimore, MD, US · International, Foreign Affairs & National Security · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  62. Ochs Family Foundation

    EIN 460865784 · Headquarters: BALTIMORE, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  63. Ocphc Charities Inc

    EIN 841670822 · Headquarters: OCEAN CITY, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  64. Ocr Unleashed

    EIN 472811958 · Headquarters: Germantown, MD, US · Health Care · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  65. Ocrom Haiti Foundation Inc

    EIN 461210007 · Headquarters: Bowie, MD, US · International, Foreign Affairs & National Security · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Octopus Flying Club

    EIN 521831102 · Headquarters: RIVERDALE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  67. Odaa Hulle Development Foundation Inc

    EIN 475228061 · Headquarters: Takoma Park, MD, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  68. Odadee North America Chapter

    EIN 813560631 · Headquarters: Hagerstown, MD, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  69. Odenton Health Association Incorporated

    EIN 520796274 · Headquarters: gambrills, MD, US · Health Care · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  70. Odenton Heritage Society Inc

    EIN 521661804 · Headquarters: Odenton, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  71. Odenton Lodge No 2601 Loyal Order of Moose

    EIN 260027047 · Headquarters: Odenton, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  72. Odenton Senior Housing Ii Inc

    EIN 870810127 · Headquarters: Timonium, MD, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Odenton Senior Housing Inc

    EIN 522030205 · Headquarters: Timonium, MD, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Odenton Temple Holding Corporation

    EIN 237077579 · Headquarters: Odenton, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. Odenton Volunteer Fire Company Inc

    EIN 521589778 · Headquarters: ODENTON, MD, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Odf Foundation Inc

    EIN 883255921 · Headquarters: FREDERICK, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Odinihu Inc

    EIN 934534302 · Headquarters: Columbia, MD, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  78. Odonnell Heights Tenant Council

    EIN 030482876 · Headquarters: Baltimore, MD, US · Housing & Shelter · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  79. Odonnell Scholars

    EIN 334304016 · Headquarters: Baltimore, MD, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  80. Odyssey Works Foundation Inc

    EIN 933188465 · Headquarters: BALTIMORE, MD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Oella Historical Society

    EIN 562639090 · Headquarters: Ellicott City, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Off Street Sports Performance Inc

    EIN 371649526 · Headquarters: SALISBURY, MD, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  83. Off the Bench

    EIN 392066033 · Headquarters: Gaithersburg, MD, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Off the Quill Inc

    EIN 462850306 · Headquarters: Hyattsville, MD, US · Arts, Culture & Humanities · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  85. Office and Professional Employees International Union Local 2 Afl-cio

    EIN 530120575 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Office Management and Technology

    EIN 522101501 · Headquarters: Essex, MD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. Office Of Consumer Advocates Inc

    EIN 522116425 · Headquarters: Hagerstown, MD, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Office of Research Recreation and Welfare Association

    EIN 261918288 · Headquarters: Laurel, MD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  89. Office Without Walls Foundation

    EIN 923574376 · Headquarters: Columbia, MD, US · Crime & Legal Related · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Officer Gail Cobb Dc Scholarship Fund Inc

    EIN 392250439 · Headquarters: Mechanicsville, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Officer Noah Aaron Leotta Foundation Inc

    EIN 811143375 · Headquarters: Olney, MD, US · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Official Distinguished Gentz of the Dmv Inc

    EIN 331757701 · Headquarters: Upper Marlboro, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Official Outreach Inc

    EIN 852756769 · Headquarters: MOUNT AIRY, MD, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Offit Kurman Charitable Foundation Inc

    EIN 823685060 · Headquarters: FULTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  95. Offshore Wind Alliance of Delaware & Maryland Inc

    EIN 863839655 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  96. Oficina Da Capoeira Social Project Baltimore

    EIN 262727728 · Headquarters: Baltimore, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Ofonime Emah

    EIN 842493741 · Headquarters: Elkridge, MD, US · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  98. Ofosu Appiah Empowerment Center Corp

    EIN 872886801 · Headquarters: Upper Marlboro, MD, US · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Ofuobi Women of Enugu State Wdc Inc

    EIN 471985777 · Headquarters: GLEN BURNIE, MD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Ogboli Union USA-canada

    EIN 861778714 · Headquarters: Landover, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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