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. William Kb Foundation Inc

    EIN 844031333 · Headquarters: Laurel, MD, USA · Health Care · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  2. William Knabe Piano Institute Inc

    EIN 812152184 · Headquarters: Nottingham, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. William L & Victorine Q Adams Foundation Inc

    EIN 521369556 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  4. William L and Audrey N Evans Senior Citizens Charitable Trust

    EIN 847099966 · Headquarters: BALTIMORE, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  5. William L Howser Foundation for Veterans Inc

    EIN 820908554 · Headquarters: Marion Station, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. William M Lane Foundation

    EIN 522056835 · Headquarters: BETHESDA, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  7. William M Singerly Steam Fire Engine and Hook & Ladder Co 1

    EIN 526053854 · Headquarters: ELKTON, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  8. William Pargman Activity Fund Camp Airy

    EIN 521147421 · Headquarters: BALTIMORE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. William Peace University PAD Prelaw Chapter

    EIN 472059060 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. William Pinkney Magruder Memhospital Inc

    EIN 520897048 · Headquarters: Upper Marlboro, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  11. William R Lipscomb Trust

    EIN 526462857 · Headquarters: Davidsonville, MD, US · Mutual & Membership Benefit · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. William R Tolbert Baptist University USA Support Group Inc

    EIN 933510494 · Headquarters: Mitchellville, MD, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  13. William Ross Jr Education Foundation

    EIN 853128660 · Headquarters: Middle River, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. William Roy Baker Jr Family Foundation Trust

    EIN 656341686 · Headquarters: WESTMINSTER, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2014 · Primary form: IRS Form 990-PF

  15. William S Abell Foundation Inc

    EIN 521435573 · Headquarters: CHEVY CHASE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  16. William Sampson Brooks High School Alumni Association Incorpra

    EIN 471665960 · Headquarters: Charlotte Hall, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. William Van Dyke Minor Jr Educational Foundation

    EIN 522199236 · Headquarters: UPPER MARLBORO, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. William Vs Tubman University Foundation Inc

    EIN 901022723 · Headquarters: Brandywine, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. William Woods University PAD Prelaw Chapter

    EIN 954720638 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Williampaca Elementary Pto

    EIN 843482731 · Headquarters: Landover, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Williams & Family Community Outreach Inc

    EIN 392138445 · Headquarters: Upper Marlboro, MD, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Williams Family Association Inc

    EIN 274631484 · Headquarters: Hanover, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Williamsons Mental Health Foundation Corporation

    EIN 834621372 · Headquarters: Bowie, MD, USA · Crime & Legal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  24. Williamsport Band Boosters Inc

    EIN 521874147 · Headquarters: WILLIAMSPORT, MD, USA · Arts, Culture & Humanities · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. Williamsport Chapter No 2116 Women of the Moose

    EIN 522081956 · Headquarters: Williamsport, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  26. Williamsport Community Band Incorporated

    EIN 205563796 · Headquarters: Williamsport, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Williamsport Elementary Pto

    EIN 932980603 · Headquarters: Williamsport, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Williamsport Food Bank Inc

    EIN 384091875 · Headquarters: WILLIAMSPORT, MD, US · Food, Agriculture & Nutrition · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  29. Williamsport High School Choral Boosters Inc

    EIN 261568723 · Headquarters: WILLIAMSPORT, MD, US · Arts, Culture & Humanities · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Williamsport Md Chapter Harley Owners Group Inc

    EIN 204822694 · Headquarters: Williamsport, MD, US · Recreation & Sports · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  31. Williamsport Volunteer Fire & Ems Inc

    EIN 521123711 · Headquarters: WILLIAMSPORT, MD, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Williamsport Wildcat Athletic Booster Club Inc

    EIN 521216436 · Headquarters: WILLIAMSPORT, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Williamsport Youth Soccer Inc

    EIN 311663388 · Headquarters: Williamsport, MD, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Willie G Dukes Community Action Program Inc

    EIN 800610123 · Headquarters: Bishopville, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  35. Willie Strong Foundation Limited

    EIN 834011812 · Headquarters: Bethesda, MD, USA · Medical Research · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  36. Willing Workers for God Inc

    EIN 522020712 · Headquarters: Baltimore, MD, US · Human Services · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  37. Willing Workers of Oxon Hill Inc

    EIN 521331019 · Headquarters: Springdale, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  38. Willis PAD Law Chapter

    EIN 346578287 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Williston Community Church Inc

    EIN 522335918 · Headquarters: Denton, MD, US · Religion Related · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  40. Willoughby Foundation Inc C/o Cri Inc

    EIN 900180667 · Headquarters: ROCKVILLE, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  41. Willow Brook Center

    EIN 453419466 · Headquarters: GERMANTOWN, MD, US · Human Services · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  42. Willow Creek Housing Inc

    EIN 521963655 · Headquarters: NORTH BETHESDA, MD, USA · Housing & Shelter · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Willow Glen South Improvement Association Inc

    EIN 753214634 · Headquarters: Pikesville, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  44. Willow Grove Citizens Association Inc

    EIN 521824168 · Headquarters: Glenn Dale, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  45. Willow Leaf Project

    EIN 923816591 · Headquarters: Gaithersburg, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Willow Oak Md Chapter of the Links Incorporated

    EIN 853870138 · Headquarters: Upper Marlboro, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Willow Oak Therapy Center Inc

    EIN 521291997 · Headquarters: ROCKVILLE, MD, USA · Mental Health & Crisis Intervention · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Willow Road Residents Association Inc

    EIN 845080501 · Headquarters: Frederick, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Willow Wildlife Rehabilitation Center

    EIN 934829657 · Headquarters: SEVERN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  50. Willows Citizens Association Incorporated

    EIN 237006819 · Headquarters: Chesapeake Beach, MD, US · Housing & Shelter · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  51. Willows Foundation Inc Aka Chesapeake Temple

    EIN 753140268 · Headquarters: CHESAPEAKE BEACH, MD, USA · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  52. Willowtree Charities Inc

    EIN 472627848 · Headquarters: Salisbury, MD, US · Diseases, Disorders & Medical Disciplines · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  53. Willpower Fitness and Education Foundation Corporation

    EIN 991073514 · Headquarters: Poolesville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Wilson and Mary Howes Foundation Inc

    EIN 461266600 · Headquarters: SILVER SPRING, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  55. Wilson Family Community Foundation Inc

    EIN 843630533 · Headquarters: EASTON, MD, USA · Philanthropy, Voluntarism & Grantmaking Foundations · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  56. Wilson Foundation Inc

    EIN 526081814 · Headquarters: Hagerstown, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Wilson House Corporation

    EIN 413544034 · Headquarters: BALTIMORE, MD, US · Housing & Shelter · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Wilson L Heflin Foundation Inc

    EIN 521559154 · Headquarters: Annapolis, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  59. Wilson Park Improvment Association

    EIN 263961528 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  60. Wilson Parrot Foundation Inc

    EIN 311636218 · Headquarters: Damascus, MD, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Wilson Rhodes Four Locks Hunting & Fishing Club Inc

    EIN 300809241 · Headquarters: HAGERSTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Wilson Ruritan Club Inc

    EIN 526056636 · Headquarters: HAGERSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. Wilsonian Club Inc

    EIN 821296091 · Headquarters: BETHESDA, MD, US · Arts, Culture & Humanities · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  64. Wilton Acres Residents Association

    EIN 843903121 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Wilton Park USA Foundation

    EIN 320226131 · Headquarters: BETHESDA, MD, USA · International, Foreign Affairs & National Security · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  66. Wiltondale Garden Club

    EIN 521360453 · Headquarters: Towson, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Wiltondale Improvement Association

    EIN 520810218 · Headquarters: Towson, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Win Family Services Inc

    EIN 522054536 · Headquarters: COLUMBIA, MD, USA · Human Services · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Win for Democracy Coalition

    EIN 993643317 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Win Foundation

    EIN 923178913 · Headquarters: WINDSOR MILL, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  71. Win in Stem Inc

    EIN 850905316 · Headquarters: Oakland, MD, US · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Win with Fitness Corp

    EIN 854001143 · Headquarters: Laurel, MD, US · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. WIN-NextGen Inc

    EIN 141849649 · Headquarters: Lanham, MD, USA · Youth Development · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  74. Winchester on Severn Association Inc

    EIN 526050542 · Headquarters: Arnold, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Wincity Basketball Association Winchester Rising Stars

    EIN 831813890 · Headquarters: GLEN BURNIE, MD, USA · Recreation & Sports · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Wind of Change Ministries Inc

    EIN 743087448 · Headquarters: Baltinore, MD, US · Human Services · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  77. Wind Riders Association of Baltimore Maryland Inc

    EIN 061807804 · Headquarters: BALTIMORE, MD, US · Recreation & Sports · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  78. Windemere Long Term Care Llc

    EIN 611618065 · Headquarters: BALTIMORE, MD, US · Health Care · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Winding Creek Avian Rescue

    EIN 842037235 · Headquarters: HAGERSTOWN, MD, USA · Animal Related · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  80. Winding Orchard Community Foundation

    EIN 922776369 · Headquarters: Silver Spring, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Windmill Class Association Inc

    EIN 472704921 · Headquarters: Pasadena, MD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Window of Hope Inc

    EIN 472578713 · Headquarters: LAUREL, MD, USA · Religion Related · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  83. Window to the World Inc

    EIN 222762908 · Headquarters: Frederick, MD, US · Youth Development · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  84. Windows Of Strength Limited

    EIN 272927265 · Headquarters: Chesapeake Beach, MD, US · Health Care · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Winds of Leadership Inc

    EIN 261119713 · Headquarters: BEL AIR, MD, US · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  86. Windsor Farm Parent Teacher Organization

    EIN 521645431 · Headquarters: ANNAPOLIS, MD, USA · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  87. Windsor Hills Neighbors Inc

    EIN 237064127 · Headquarters: Baltimore, MD, US · Community Improvement & Capacity Building · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Windsor Park Childrens School Inc

    EIN 201358742 · Headquarters: Randallstown, MD, USA · Education · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  89. Windy Hill Elementary School Pto Inc

    EIN 863807991 · Headquarters: Owings, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Windy Hill Middle School Parent Teacher Student Organization

    EIN 853808547 · Headquarters: Owings, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Windy Pines Rescue Inc

    EIN 814974489 · Headquarters: FROSTBURG, MD, US · Animal Related · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Windy Rock Equine Rescue Inc

    EIN 208058085 · Headquarters: CLEAR SPRING, MD, US · Animal Related · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  93. Wine and Food Society of Baltimore Maryland Ltd

    EIN 520880485 · Headquarters: Lutherville, MD, USA · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  94. Winfield Community Volunteer Fire Dept

    EIN 526066849 · Headquarters: SYKESVILLE, MD, USA · Public Safety, Disaster Preparedness & Relief · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Winfield Elementary Pto

    EIN 454752126 · Headquarters: Westminster, MD, US · Education · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Wing Chun Way

    EIN 471678088 · Headquarters: Silver Spring, MD, US · Recreation & Sports · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Wingmen Motorcycle Club National Inc

    EIN 920579400 · Headquarters: ELKTON, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Wings for Joy Inc

    EIN 522358338 · Headquarters: Silver Spring, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Wings for Val Foundation Inc

    EIN 473961795 · Headquarters: Pasadena, MD, US · Education · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Wings of Beauty Inc

    EIN 852900311 · Headquarters: Frederick, MD, US · Human Services · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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