Unknown & Unclassified nonprofits in Delaware

Unknown & Unclassified nonprofits in Delaware. Browse 2,386 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. American Federation of State County & Municipal Employees

    EIN 912027191 · Headquarters: NEW CASTLE, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. American Federation of State County and Municipal Employees

    EIN 237208340 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  3. American Federation of State County and Municipal Employees

    EIN 821835250 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. American Federation of State County and Municipal Employees Local2356

    EIN 413153024 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. American Fisheries Society

    EIN 237226666 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. American Guild of Organists Ago

    EIN 516017907 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. American Guild of Organists Ago

    EIN 880516536 · Headquarters: REHOBOTH BEACH, DE, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  8. American Humanist Association

    EIN 421729430 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  9. American Humanist Association

    EIN 474696794 · Headquarters: Milford, DE, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  10. American Inns of Court Foundation

    EIN 270766872 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. American Inns of Court Foundation

    EIN 463911367 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. American Inns of Court Foundation

    EIN 510333373 · Headquarters: Georgetown, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. American Inns of Court Foundation

    EIN 510407384 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. American International School of Vi Enna Foundation

    EIN 800375632 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. American Investors Abroad Inc

    EIN 812856614 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  16. American Jobs and Energy Security Fund

    EIN 991179680 · Headquarters: DOVER, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. American Legion

    EIN 516010012 · Headquarters: HARRINGTON, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. American Legion

    EIN 516016025 · Headquarters: WILMINGTON, DE, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  19. American Legion

    EIN 516018013 · Headquarters: Delmar, DE, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  20. American Legion

    EIN 516018016 · Headquarters: fenwick island, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. American Legion

    EIN 516018019 · Headquarters: DELAWARE CITY, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. American Legion

    EIN 516022762 · Headquarters: Millford, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. American Legion

    EIN 516022766 · Headquarters: Claymont, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. American Legion

    EIN 526043020 · Headquarters: MILTON, DE, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  25. American Legion

    EIN 562469560 · Headquarters: MIDDLETOWN, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. American Legion

    EIN 993149972 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. American Legion Auxiliary

    EIN 263127132 · Headquarters: Hockessin, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. American Legion Auxiliary

    EIN 300524166 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. American Legion Auxiliary

    EIN 352354147 · Headquarters: Harrington, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. American Legion Auxiliary

    EIN 371585584 · Headquarters: Smyrna, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. American Legion Auxiliary

    EIN 510366844 · Headquarters: Rehoboth Beach, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. American Legion Auxiliary

    EIN 510368502 · Headquarters: Dagsboro, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. American Legion Auxiliary

    EIN 510404636 · Headquarters: Townsend, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. American Legion Auxiliary

    EIN 800325904 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  35. American Legion Auxiliary

    EIN 800325964 · Headquarters: Seaford, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. American Legion Auxiliary

    EIN 800496462 · Headquarters: Georgetown, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. American Legion Auxiliary

    EIN 911922671 · Headquarters: MILLSBORO, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. American Legion Auxiliary

    EIN 943459893 · Headquarters: Nassau, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. American Legion Auxiliary 0030 Unit Joseph B Stahl Post

    EIN 371590004 · Headquarters: NEW CASTLE, DE, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  40. American Legion Auxiliary Department of Delaware Inc

    EIN 510272425 · Headquarters: Georgetown, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  41. American Legion David C Harrison P

    EIN 516018014 · Headquarters: SMYRNA, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. American Legion Department of Delaware

    EIN 510058086 · Headquarters: SEAFORD, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. American Legion Lt J Allison O'Daniel Post #10

    EIN 516018229 · Headquarters: Newark, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  44. American Legion Post 5 Henlopen

    EIN 516017434 · Headquarters: REHOBOTH BEACH, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. American Legion Post 6 Inc

    EIN 516018015 · Headquarters: SEAFORD, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. American Mothers Inc

    EIN 510301749 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  47. American Nephrology Nurses Association

    EIN 454104329 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  48. American Policy Advocates Inc

    EIN 471115810 · Headquarters: DOVER, DE, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  49. American Postal Workers Union

    EIN 237338425 · Headquarters: lewes, DE, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. American Postal Workers Union D/b/a 152 Wilmington De Malcom T Smith

    EIN 237342515 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  51. American Production & Inventory Control Brandywine Valley Chapter

    EIN 237034170 · Headquarters: GREENVILLE, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. American Professional Mariners Association Inc

    EIN 464203881 · Headquarters: LEWES, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. American Society for Adolescent Psychiatry (ASAP)

    EIN 237094782 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. American Society for Clinical Laboratory Science

    EIN 510274093 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. American Society of Cytopathology Inc

    EIN 042255896 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. American Society of Highway Engineers

    EIN 311372336 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. American Statistical Association

    EIN 912004155 · Headquarters: NEWARK, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. American Trauma Society

    EIN 510413986 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. American Volkssport Association Inc

    EIN 522021917 · Headquarters: Smyrna, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. American Youth Football Inc

    EIN 510348574 · Headquarters: Bridgeville, DE, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  61. Americans for Comprehensive Energy Solutions

    EIN 815162646 · Headquarters: DOVER, DE, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  62. Americans for Family Supporting Jobs Foundation

    EIN 830773178 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  63. Americans for Modern Transportation Inc

    EIN 813351279 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Americas Solar Advocates Inc

    EIN 471213819 · Headquarters: DOVER, DE, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  65. Amvets

    EIN 201487825 · Headquarters: SEAFORD, DE, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  66. Amvets

    EIN 201899869 · Headquarters: BEAR, DE, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  67. Amvets

    EIN 510414170 · Headquarters: Millsboro, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. An Old Man in the Village Inc

    EIN 921993682 · Headquarters: LEWES, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Ancient Accepted Scottish Rite of Free Masonary Nmj

    EIN 352305717 · Headquarters: Milton, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Ancient Egyptian Arabic Order Nobles Mystic Shrine of N & S Amer

    EIN 901229800 · Headquarters: New Castle, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Ancient Free & Accepted Masons of Maryland

    EIN 455571346 · Headquarters: Delmar, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Ancient Order of Hibernians in America

    EIN 264224953 · Headquarters: NEWARK, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  73. Andrewville Tax Ditch

    EIN 262026663 · Headquarters: Harrington, DE, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  74. Aneya H U N K Foundation

    EIN 861876520 · Headquarters: New Castle, DE, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  75. Ania Delmarva

    EIN 475353231 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  76. Anna P Mote Elementary

    EIN 862429785 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  77. Another Chance Ministries Inc

    EIN 861344665 · Headquarters: Milford, DE, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  78. Apes Social Club Inc

    EIN 470985916 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  79. Apostolic Church Intl Inc (Delaware Central)

    EIN 462141941 · Headquarters: NEWARK, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Appoquinimink Education Association Inc

    EIN 510334697 · Headquarters: DOVER, DE, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  81. Arabian Racing Cup Inc

    EIN 621207410 · Headquarters: SMYRNA, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  82. Arch Community Fund

    EIN 820614738 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  83. Archaeological Society of Delaware

    EIN 516018330 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Arden Community Recreation Association Inc

    EIN 510096330 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Ardencroft Association

    EIN 516015966 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  86. Arguild Foundation C/o Mary Connolly Braun President

    EIN 516016487 · Headquarters: GREENVILLE, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  87. Arnold Air Society-silver Wings

    EIN 582141233 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Ascend Inc

    EIN 232110102 · Headquarters: NEWARK, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  89. Ashbourne Swim Club Inc

    EIN 510083297 · Headquarters: Claymont, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  90. Ashford Foundation of Delaware Inc

    EIN 222469163 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  91. Asia Developmental Services Inc

    EIN 237312916 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Asians for Christ Inc

    EIN 510295993 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Aspirational Chess Inc

    EIN 932854920 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Assheton for Delaware Art Museum 003169-000

    EIN 516012417 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  95. Associated Builders and Contractors Inc Delaware Chapter

    EIN 510101354 · Headquarters: NEW CASTLE, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. Association of Cannabis Hr Professionals

    EIN 990639969 · Headquarters: Lewes, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Association of Friends of Aurora Center

    EIN 510328186 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  98. Association of Information Technology Professionals

    EIN 113774475 · Headquarters: Bear, DE, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  99. Association of Notre Dame Clubs Inc - Delaware

    EIN 311075387 · Headquarters: Millsboro, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Association of Retired Delaware State Police Inc

    EIN 516022773 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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