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. The Kiefer Foundation Inc

    EIN 526050346 · Headquarters: REISTERSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  2. The Kingdom Paradise Inc

    EIN 873198822 · Headquarters: HYATTSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. The Kings Way Inc

    EIN 521043856 · Headquarters: REISTERSTOWN, MD, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  4. The Kingsville Volunteer Fire Company

    EIN 526054427 · Headquarters: KINGSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. The Kirk Family Foundation

    EIN 522358200 · Headquarters: Ellicott City, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  6. The Kiwanis Club of Leisure World Silver Spring Maryland Inc

    EIN 526078514 · Headquarters: Silver Spring, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  7. The Knapp Foundation Inc

    EIN 136001167 · Headquarters: St Michaels, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  8. The Krongard Foundation Inc

    EIN 526054495 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  9. The Ladies Auxiliary of the Ocean City Volunteer Fire Company Inc

    EIN 521610377 · Headquarters: OCEAN CITY, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  10. The Lancelotta Foundation Inc

    EIN 521558269 · Headquarters: ELLICOTT CITY, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  11. The Lauer Philanthropic Foundation

    EIN 522036406 · Headquarters: CHEVY CHASE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  12. The Laurel Oratorio Society Inc

    EIN 521186165 · Headquarters: LAUREL, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. The Lchayim Charitable Trust Ua 062091

    EIN 043124091 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  14. The League of Women Voters of the Midshore Inc

    EIN 521043320 · Headquarters: Easton, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. The Learning Tree Nursery School of Cumberland Inc

    EIN 521410747 · Headquarters: Cumberland, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. The Leitersburg Volunteer Fire Company

    EIN 521219075 · Headquarters: Hagerstown, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. The Lenox D and Frances W Baker Foundation

    EIN 541788401 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  18. The Lester & Ruth Hiebert

    EIN 770363012 · Headquarters: CHEVY CHASE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  19. The Levitt Foundation

    EIN 426052427 · Headquarters: POTOMAC, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  20. The Library Company of the Baltimore Bar

    EIN 520591622 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  21. The Links Inc

    EIN 521280198 · Headquarters: Hughesville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. The Liriodendron Foundation Inc

    EIN 521219422 · Headquarters: BEL AIR, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. The Literacy Council of Washington County

    EIN 521726321 · Headquarters: Hagerstown, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. The Little Meadows Charitable Trust

    EIN 521433157 · Headquarters: GRANTSVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. The Loading Dock Inc

    EIN 521349891 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. The Loats Foundation Inc C/o Evangelical Lutheran Church

    EIN 520610535 · Headquarters: FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  27. The Lois & Irving Blum Foundation Inc

    EIN 526057035 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  28. The Long Meadow Association Inc

    EIN 521245586 · Headquarters: PIKESVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. The Lujensue Foundation

    EIN 521313990 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  30. The Lyn P Meyerhoff Foundation Inc

    EIN 521624876 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  31. The Marion I & Henry J Knott Foundation Inc

    EIN 521517876 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  32. The Marion I and Henry J Knott Scholarship Fund Inc

    EIN 521097109 · Headquarters: COLUMBIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. The Mark & Carol Hyman Fund C/o Sue Besharov

    EIN 046677395 · Headquarters: CHEVY CHASE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  34. The Marvin Schapiro Family Foundation Inc

    EIN 521615020 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. The Maryland Academy of Physician Assistants Inc

    EIN 521122061 · Headquarters: Millersville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. The Maryland Asphalt Association Inc

    EIN 520635500 · Headquarters: GLEN BURNIE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. The Maryland Association of Community Services for Persons with Developmental

    EIN 521664511 · Headquarters: COLUMBIA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. The Maryland Branch Shut-in Society of Baltimore City Inc

    EIN 526013547 · Headquarters: LUTHERVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  39. The Maryland Classified Employees Association Inc

    EIN 520403170 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. The Maryland Fur Trappers Incorporation

    EIN 521340512 · Headquarters: Smithsburg, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. The Maryland Mobileers Amateur Radio Club Inc

    EIN 521494450 · Headquarters: Severn, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. The Maryland National Guard Military Historical Society Inc

    EIN 521241754 · Headquarters: Hanover, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. The Maryland Psychiatric Society Inc

    EIN 520888193 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  44. The Maryland State Boychoir Inc

    EIN 521541348 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. The Maryland Steam Historical Society Inc

    EIN 237453510 · Headquarters: HAMPSTEAD, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. The Master Building Association

    EIN 530106136 · Headquarters: ROCKVILLE, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. The Mc Cutchen Foundation

    EIN 226050116 · Headquarters: BRUNSWICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  48. The Mechanical Contracting Foundation Inc

    EIN 521646891 · Headquarters: ROCKVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. The Merle Thorpe Jr Charitable Trust

    EIN 526666964 · Headquarters: THURMONT, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  50. The Mid Eastern Region N M R a Inc

    EIN 521193244 · Headquarters: Waldorf, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. The Mid-atlantic Chapter N C R S Inc

    EIN 541690561 · Headquarters: Bowie, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. The Middletown Valley Historical Society Inc

    EIN 521145934 · Headquarters: Middletown, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. The Miller Family Foundation Inc

    EIN 521547070 · Headquarters: Ellicott City, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  54. The Milton a and Gloria G Barlow Family Foundation Inc

    EIN 521486741 · Headquarters: Potomac, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  55. The Montessori School of Westminster Inc

    EIN 520995239 · Headquarters: WESTMINSTER, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. The Morningstar Philanthropic Foundation D/b/a the Morningstar Foundation

    EIN 521270464 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  57. The Morris a and Clarisse B Mechanic Foundation Inc

    EIN 526034753 · Headquarters: PIKESVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  58. The Morris Goldseker Foundation of Maryland Inc

    EIN 520983502 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  59. The Morton K and Jane Blaustein Foundation Inc

    EIN 521607300 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  60. The Mount Airy Volunteer Fire Company

    EIN 520422267 · Headquarters: MT AIRY, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. The Moving Company Inc

    EIN 521842997 · Headquarters: Cockeysville, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  62. The Mt Vernon Volunteer Fire Co Inc

    EIN 521258575 · Headquarters: PRINCESS ANNE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. The Mustard Seed Foundation Inc

    EIN 521492276 · Headquarters: SALISBURY, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  64. The Myra Deane Memorial Trust Uw 070281

    EIN 526214455 · Headquarters: CAMBRIDGE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  65. The Nabit Foundation Inc

    EIN 521756376 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  66. The Nancy & Raymond Schoenke Charitable Foundation Inc

    EIN 521557799 · Headquarters: Laytonsville, MD, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-PF

  67. The Nancy & Victor Frenkil Foundation

    EIN 526042614 · Headquarters: GLYNDON, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  68. The Nathan Foundation Inc Ima Co Robert S

    EIN 526033999 · Headquarters: CAMBRIDGE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  69. The National Small Business Council Inc

    EIN 521635567 · Headquarters: Columbia, MD, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  70. The National United Ushers Association of America Inc

    EIN 521759043 · Headquarters: Suitland, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. The Natural History Society of Maryland Inc

    EIN 521068815 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. The Naval Institute Foundation Inc

    EIN 521814344 · Headquarters: ANNAPOLIS, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. The New Bar Outlaws Inc

    EIN 521790109 · Headquarters: Thurmont, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. The Next Ice Age Inc

    EIN 521585840 · Headquarters: BALTIMORE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. The Nick and Mary Mangione Foundation Inc

    EIN 871460806 · Headquarters: Lutherville Timonium, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  76. The Nick Antlitz Fund Inc

    EIN 900460551 · Headquarters: Woodbine, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. The Noar Foundaiton for Global Community Development Inc

    EIN 901016165 · Headquarters: Towson, MD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  78. The Nora Roberts Family Foundation Inc

    EIN 464402908 · Headquarters: GLENN DALE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  79. The Nora School

    EIN 521036230 · Headquarters: SILVER SPRING, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. The Nurse Advocate Foundation Inc

    EIN 993525264 · Headquarters: Germantown, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. The Oceanography Society

    EIN 521563085 · Headquarters: Rockville, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. The Old Georgetown Club Inc

    EIN 520909907 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  83. The Old Hoopers Island Graveyard Inc

    EIN 061803997 · Headquarters: Parkville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. The Olde Carriage Hill Homeowners Association Inc

    EIN 521350054 · Headquarters: Montgomery Village, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. The Omega Psi Phi Fraternity Tau Pi Chapter Columbia Md Inc

    EIN 521048866 · Headquarters: Laurel, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. The Oneness Family School

    EIN 521570713 · Headquarters: CHEVY CHASE, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. The Oriole Advocates Charitable Foundation Inc

    EIN 521522240 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. The Oriole Advocates Inc

    EIN 520848237 · Headquarters: LUSBY, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  89. The Owls Club Inc 4002

    EIN 521312404 · Headquarters: FREDERICK, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. The P Richard & Cindy Kramer Zitelman Family Foundation Inc

    EIN 521883221 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  91. The Pen-mar Club

    EIN 320265756 · Headquarters: HANCOCK, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  92. The Peoplesvoice Llc

    EIN 473729332 · Headquarters: Columbia, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. The Pharmacy Technician Society Inc

    EIN 931453112 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. The Phase Foundation

    EIN 521611434 · Headquarters: GERMANTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  95. The Phycological Society of America

    EIN 430898177 · Headquarters: LUTHERVILLE, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. The Phyllis L & Leonard J Attman Foundation Inc

    EIN 526367308 · Headquarters: OWINGS MILLS, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  97. The Platform Magazine Foundation in C

    EIN 394231978 · Headquarters: Sykesville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. The Posses Roar Inc

    EIN 471790261 · Headquarters: Catonsville, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. The Pride Center Of Maryland Inc

    EIN 521112541 · Headquarters: Baltimore, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. The Primary Day School Inc

    EIN 520657413 · Headquarters: BETHESDA, MD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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