Unknown & Unclassified nonprofits in Maryland

Unknown & Unclassified nonprofits in Maryland. Browse 10,672 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. Southwest Emergency Services Inc

    EIN 521458342 · Headquarters: Halethorpe, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. Southwest Florida Dotnet Developers Group Inc

    EIN 272485764 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  3. Sparrows Point County Club Inc

    EIN 520493130 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  4. Spartan Scholarships Inc

    EIN 851290319 · Headquarters: Bel Air, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  5. Spatial Ecology and Telemetry Working Group

    EIN 521874123 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. Spec Foundation

    EIN 464482058 · Headquarters: Upper Marlboro, MD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  7. Speculative and Maintenance Painters Lu 1937

    EIN 526065856 · Headquarters: LANHAM, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Spedden-seward Cemetery Association

    EIN 521359518 · Headquarters: Cambridge, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Speech & Hearing Discussion Group of the Wash Metropolitan Area

    EIN 521389973 · Headquarters: Rockville, MD, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  10. Spelman College PAD Prelaw Chapter

    EIN 455487610 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Spice Initiative

    EIN 812714855 · Headquarters: BALTIMORE, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  12. Spirit Bloom

    EIN 995106496 · Headquarters: Chevy Chase, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Spirit of Peace Baptist Church

    EIN 521338957 · Headquarters: CAPITOL HEIGHTS, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  14. Spocott Windmill Foundation Inc

    EIN 237164325 · Headquarters: CAMBRIDGE, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Spondeo Education Corporation

    EIN 831785847 · Headquarters: BETHESDA, MD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  16. Sportcast USA

    EIN 812580698 · Headquarters: Fort Washington, MD, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  17. Sports Boosters of Maryland Inc

    EIN 521342269 · Headquarters: LUTHERVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  18. Sports Md & Dds Foundation Inc

    EIN 990438795 · Headquarters: North Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Spring Breeze Community Association Inc

    EIN 521228376 · Headquarters: OWINGS MILLS, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Spring Garden Neighborhood Association Inc

    EIN 521354131 · Headquarters: Damascus, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  21. Spring Hill Cemetery Inc

    EIN 521169755 · Headquarters: Snow Hill, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Spring Mill Homeowners Association Inc

    EIN 521489747 · Headquarters: SILVER SPRING, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Springdale Club Inc

    EIN 520885304 · Headquarters: Cockeysville, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Springdale Homes Association Inc

    EIN 520945679 · Headquarters: COCKEYSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  25. Springfield Cemetery Company

    EIN 526049050 · Headquarters: Sykesville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Springfield Franconia Host Lions Club Charities Inc

    EIN 541418623 · Headquarters: Gaithersburg, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Springfield Garden Club of Montgomery County

    EIN 274255368 · Headquarters: BETHESDA, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  28. Springlake Club Inc

    EIN 520712678 · Headquarters: Lutherville Timonium, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. Sprinkler Fitters Local 669

    EIN 237152443 · Headquarters: Columbia, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Spruce Forest Artisan Village Inc

    EIN 521569602 · Headquarters: GRANTSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. Ssc Wounded Warrior Run

    EIN 462007027 · Headquarters: Bethesda, MD, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  32. Ssd Inc

    EIN 521216558 · Headquarters: Owings Mills, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  33. St Ambrose University PAD Prelaw Chapter

    EIN 431984781 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. St Andrew's Episcopal School Inc

    EIN 521107876 · Headquarters: POTOMAC, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. St Andrews Anglican Fellowship Inc

    EIN 271266898 · Headquarters: Odenton, MD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  36. St Andrews Society Foundation C/o Gerald Walsh Cpa

    EIN 520807445 · Headquarters: COLUMBIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. St Andrews Society of Baltimore Inc

    EIN 526039895 · Headquarters: TIMONIUM, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  38. St Anne's School of Annapolis Inc

    EIN 521186325 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. St Anns Cemetery Fund Inc

    EIN 521332575 · Headquarters: Lonaconing, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. St Anns Donor Trust

    EIN 476501670 · Headquarters: Hyattsville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. St Charles House Inc

    EIN 521465523 · Headquarters: Timonium, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. St Charles Sportsman's Club Inc

    EIN 237108409 · Headquarters: WALDORF, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. St Clair Wright Preservation Fund Inc

    EIN 521879684 · Headquarters: Annapolis, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. St Edwards University PAD Prelaw Chapter

    EIN 943132091 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. St Elizabeth Ann Seton Chapter of Grand Knights

    EIN 900408556 · Headquarters: New Market, MD, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  46. St Francis Neighborhood Center

    EIN 520968759 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. St George Pathfinders of America

    EIN 521100210 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. St George Pathfinders of America

    EIN 521100224 · Headquarters: Ellicott City, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. St Gerard Young Mens Assoc of Highlandtown Inc

    EIN 526054781 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. St Ignatius Loyola Academy Inc

    EIN 521819203 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990

  51. St James Academy Inc

    EIN 521787345 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  52. St James Cemetery at Dennings

    EIN 844835937 · Headquarters: Westminster, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. St James Terrace Apartments Inc

    EIN 526070294 · Headquarters: BALTIMORE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. St John's Cemetery of Howard County

    EIN 520470065 · Headquarters: ELLICOTT CITY, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. St John's Family Shelter Inc

    EIN 521473984 · Headquarters: HAGERSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  56. St John's Lane Elementary School Parent Teacher Association Inc

    EIN 521333666 · Headquarters: Ellicott City, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. St John's Towers

    EIN 520853093 · Headquarters: HAVRE DE GRACE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. St Johns Regional Conference

    EIN 455454041 · Headquarters: Frederick, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. St Johns University PAD Prelaw Chapter

    EIN 271709500 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. St Joseph Hospital Medical Staff Education Fund Inc

    EIN 237239565 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. St Joseph's Nursing Home Inc

    EIN 881595127 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  62. St Joseph's Nursing Home Sisters Servants of Mary Immaculate

    EIN 521103717 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  63. St Luke Homes Inc

    EIN 521685393 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. St Luke Institute Inc

    EIN 521082730 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. St Mary Coptic Orthodox Church Of

    EIN 521187969 · Headquarters: SAVAGE, MD, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  66. St Mary's American Little League Association

    EIN 521910237 · Headquarters: CALIFORNIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  67. St Mary's Co Farm Bureau Inc

    EIN 520908278 · Headquarters: Leonardtown, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. St Mary's County Arts Council Inc

    EIN 521479968 · Headquarters: LEONARDTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. St Mary's County Branch NAACP #7025

    EIN 912132286 · Headquarters: Lexington Park, MD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  70. St Mary's County Chamber of Commerce Inc

    EIN 237226106 · Headquarters: LEXINGTON PARK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. St Mary's Nursing Center Foundation Inc

    EIN 521648341 · Headquarters: LEONARDTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. St Marys Cemetery Association of Carroll County Inc

    EIN 520470172 · Headquarters: Westminster, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. St Marys Council Club Inc

    EIN 201970317 · Headquarters: LEONARDTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. St Marys County Genealogical Society Inc

    EIN 521652941 · Headquarters: Leonardtown, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. St Marys County Historical Society Inc

    EIN 520906455 · Headquarters: LEONARDTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. St Marys County Non Public School Bus Contractors Association Inc

    EIN 454334789 · Headquarters: Leonardtown, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. St Marys County Northern Bowling Machine League

    EIN 264070956 · Headquarters: California, MD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  78. St Marys County Public School

    EIN 521468721 · Headquarters: Charlotte Hall, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. St Marys County Public Schools Retirees Association

    EIN 521767830 · Headquarters: Leonardtown, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. St Marys Ques

    EIN 932321399 · Headquarters: LEXINGTON PARK, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  81. St Marys River Yacht Club Inc

    EIN 521934366 · Headquarters: Piney Point, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. St Marys University PAD Prelaw Chapter

    EIN 912021436 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. St Marys Youth Memorial

    EIN 521446387 · Headquarters: Great Mills, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. St Michael's Council Club Inc

    EIN 300590495 · Headquarters: RIDGE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. St Michaels Elementary School Pto Inc

    EIN 822847671 · Headquarters: ST MICHAELS, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  86. St Michaels Fire Department Inc

    EIN 237393111 · Headquarters: ST MICHAELS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. St Michaels Museum at St Marys Square Inc

    EIN 521054640 · Headquarters: ST MICHAELS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. St Patrick Apartments Ii Inc

    EIN 431847771 · Headquarters: NORTH BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. St Paul Place Specialists Inc

    EIN 521495113 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. St Pauls Old Student Association of North America Inc

    EIN 851366052 · Headquarters: Knoxville, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  91. St Peter the Apostle Council Holding Corporation Inc

    EIN 010829236 · Headquarters: New Market, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. St Peters Adult Learning Center Inc

    EIN 520815745 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. St Peters Peaceful Cemetery Inc

    EIN 871363253 · Headquarters: Hampstead, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. St Raphael Conference

    EIN 800615434 · Headquarters: ROCKVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. St Stanislaus Kostka Polish and Slavic Church Museum Inc

    EIN 861102750 · Headquarters: BALTIMORE, MD, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  96. St Stephens Court Apartments Inc

    EIN 520904329 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. St Theresa of the Child Jesus

    EIN 464369612 · Headquarters: ODENTON, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. St Thomas More Society of Maryland

    EIN 520996349 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  99. St Ursula Society of Svdp

    EIN 455362006 · Headquarters: PARKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. St Vincent De Paul Society at Immaculate Conception Church

    EIN 611696321 · Headquarters: Mechanicsville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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