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. Silver Strand Foundation De Inc

    EIN 462077052 · Headquarters: Smyrna, DE, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  2. Silverside Club Inc

    EIN 510097634 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Simba Grup Limited

    EIN 812378774 · Headquarters: NEWARK, DE, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  4. Simon K Anderson Foundation

    EIN 394360341 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  5. Sister Cities of Wilmington Inc

    EIN 510147679 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Six String Giving Foundation

    EIN 872664106 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  7. Skeeter Strong Foundation

    EIN 934002950 · Headquarters: Millsboro, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. SLC29A3 Foundation

    EIN 394154463 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  9. Smilow Foundation

    EIN 066299809 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  10. Smocking Arts Guild of America Inc

    EIN 581791505 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Smyrna Church of the Nazarene

    EIN 237359058 · Headquarters: Smyrna, DE, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  12. Smyrna Clayton Lodge No 2046 Loyal Order of Moose

    EIN 510285209 · Headquarters: Smyrna, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Smyrna Swimming Club Inc

    EIN 510257581 · Headquarters: SMYRNA, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Smyrna-clayton Masonic Hall Inc

    EIN 237408526 · Headquarters: Clayton, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Smyth Foundation

    EIN 516178707 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  16. Snuff Mill Swimming Club Inc

    EIN 510075576 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  17. Social Wellness Institute

    EIN 931988227 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  18. Society for Preservation & Encrgmnt of Barbershop Quartet Singing Amer

    EIN 237057942 · Headquarters: Milford, DE, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  19. Society for Preservation & Encrgmnt of Barbershop Quartet Singing Amer

    EIN 516015052 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  20. Society of American Military Engineers

    EIN 510345583 · Headquarters: Dover AFB, DE, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  21. Society of Critical Care Medicine

    EIN 843307603 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Society of Health and Physical Educators of Delaware

    EIN 911912633 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Society of Our Lady of Mt Carmel Inc

    EIN 232077858 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  24. Society of Pi Kappa Lambda

    EIN 364004635 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  25. Society of Plastics Engineers

    EIN 237209220 · Headquarters: NEWARK, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Society of Winterhur Graduates Inc

    EIN 510178932 · Headquarters: Winterthur, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Sodat - Delaware Inc

    EIN 237091103 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  28. Soft Coated Wheaten Terrier Club of America Inc

    EIN 023210561 · Headquarters: MAGNOLIA, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Soil and Water Conservation Society

    EIN 900684520 · Headquarters: Greenwood, DE, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  30. Solid Waste Association of North America Inc

    EIN 521432992 · Headquarters: DOVER, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Sons of Amvets Squadron 2

    EIN 570414053 · Headquarters: MILLSBORO, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  32. Sons of Confederate Veterans Inc

    EIN 201284125 · Headquarters: Rehoboth Beach, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Sons of Italy in America

    EIN 470866070 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Sons of Italy in America St Gabriel

    EIN 470866079 · Headquarters: NEW CASTLE, DE, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  35. Sons of Union Veterans of the Civil War

    EIN 455333255 · Headquarters: Middletown, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Sons of Union Veterans of the Civil War

    EIN 510369605 · Headquarters: Greenwood, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Sons of Union Veterans of the Civil War

    EIN 516015295 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Sosiel Inc

    EIN 870819562 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  39. South Ashmere Water Association Inc

    EIN 571210525 · Headquarters: Hockessin, DE, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  40. South Bethany Historical Society

    EIN 800696550 · Headquarters: Bethany Beach, DE, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  41. South Bowers Fire Company Inc

    EIN 516019514 · Headquarters: MILFORD, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. Southbridge Medical Advisory Council Inc

    EIN 237047824 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Southeast Delco Education Association

    EIN 232649653 · Headquarters: Middletown, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  44. Southern Delaware Chorale Inc

    EIN 510315924 · Headquarters: Rehoboth Bch, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  45. Southern Delaware Estate Planning Council

    EIN 205660698 · Headquarters: Lewes, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Southern Delaware Street Rod Association

    EIN 510350586 · Headquarters: GEORGETOWN, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Southern Delaware Tourism Inc

    EIN 510323794 · Headquarters: GEORGETOWN, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Southwest Civic Association

    EIN 332782294 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Sovereign Heart Nation Inc

    EIN 854009487 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Special Olympics Delaware Inc

    EIN 237162877 · Headquarters: NEWARK, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Specialisterne USA

    EIN 453612906 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Spiritual Gifts Organization Inc

    EIN 933260519 · Headquarters: TOWNSEND, DE, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  53. Sprinkle Foundation

    EIN 452959913 · Headquarters: Lewes, DE, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  54. Spruance Foundation I

    EIN 510351914 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  55. Square One De Inc

    EIN 813120327 · Headquarters: SEAFORD, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  56. St Anthony's Education Fund Inc

    EIN 510296075 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  57. St Georges Historical Society

    EIN 510282335 · Headquarters: St Georges, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. St Johnstown Cemetery Association Inc

    EIN 510095825 · Headquarters: GREENWOOD, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  59. St Mary Coptic Orthodox Church of Delaware

    EIN 510148175 · Headquarters: NEWARK, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-T

  60. St Michael's School and Nursery Inc

    EIN 510066741 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. St Patrick's Center Inc

    EIN 510120169 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Stallworth OhYes Foundation

    EIN 872310641 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  63. Standardswork Inc

    EIN 521785250 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  64. Stanford Community Development Corporation

    EIN 834448563 · Headquarters: Dover, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Stapler a A

    EIN 516015606 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  66. Steadfast Initiative Fund

    EIN 993969696 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  67. Steel Contractors Association of Delaware Inc

    EIN 237391357 · Headquarters: WILMINGTON, DE, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  68. Steel Contractors of Delaware Inc

    EIN 516029602 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  69. Stellar Associates Inc

    EIN 473366782 · Headquarters: WILMINGTON, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Stephen & Mary Birch Foundation Inc

    EIN 221713022 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  71. Stiles Family of America and Affiliated

    EIN 020398906 · Headquarters: WILMINGTON, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Stop Government Waste Inc

    EIN 472932206 · Headquarters: DOVER, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Students for Truth Inc

    EIN 994484874 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. Succ Ttee Lyons Community Center Inc

    EIN 136056901 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  75. Succ Ttee Uw William Peterman

    EIN 136057795 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  76. Success Children

    EIN 270771735 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Sunday Breakfast Mission

    EIN 510073080 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Susquehanna Gun Club

    EIN 232747559 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Sussex Central Wrestling Boosters Inc

    EIN 270208686 · Headquarters: Georgetown, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Sussex Community Crisis Housing Services Inc

    EIN 510257434 · Headquarters: GEORGETOWN, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Sussex County Abate Lone Scouts Inc

    EIN 862299656 · Headquarters: Dagsboro, DE, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  82. Sussex County Action Prevention Coalition

    EIN 474549594 · Headquarters: Lincoln, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Sussex County Amvets Post 2 Inc

    EIN 510408786 · Headquarters: MILLSBORO, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Sussex County Association of Realtors

    EIN 510206759 · Headquarters: GEORGETOWN, DE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  85. Sussex County Chapter of the Womens Council of Relators

    EIN 262584267 · Headquarters: REHOBOTH BEACH, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Sussex County Counselor S Assoc

    EIN 510413688 · Headquarters: Rehoboth Beach, DE, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  87. Sussex County Farm Bureau

    EIN 510274378 · Headquarters: Camden, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Sussex County Foe 4528

    EIN 943478978 · Headquarters: Ocean View, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Sussex County Habitat for Humanity

    EIN 510334057 · Headquarters: GEORGETOWN, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Sussex County Medical Society

    EIN 611562013 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  91. Sussex County Volunteer Delaware 50Plus Advisory Council Inc

    EIN 800474794 · Headquarters: Georgetown, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Sussex County Volunteer Firemens Association

    EIN 510278982 · Headquarters: FRANKFORD, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Sussex Gardeners

    EIN 900795287 · Headquarters: Milton, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Sussex Post No 8 the American Legion Inc

    EIN 516018018 · Headquarters: GEORGETOWN, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Sussex Shores Beach Association

    EIN 510101953 · Headquarters: BETHANY BEACH, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Sussex Tnr Inc

    EIN 475479931 · Headquarters: Lincoln, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Swann Keys Sports Club Inc

    EIN 510376088 · Headquarters: Selbyville, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Sweet Adelines International

    EIN 520232398 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Swiftwater Preserve C/o Barton Reese

    EIN 240738993 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Swim Gild of Arden Inc

    EIN 510099044 · Headquarters: ARDEN, DE, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

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