Unknown & Unclassified nonprofits in Louisiana

Unknown & Unclassified nonprofits in Louisiana. Browse 6,974 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. Sigma Iota Rho

    EIN 473105097 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  2. Sigma Nu Fraternity

    EIN 205751249 · Headquarters: Natchitoches, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Sigma Nu Fraternity

    EIN 726027776 · Headquarters: RUSTON, LA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  4. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 720859675 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Sigma Phi Alpha Dental Hygiene Honor Society

    EIN 720866018 · Headquarters: Monroe, LA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  6. Sigma Sigma Sigma Alumni Assoc

    EIN 921729717 · Headquarters: Lafayette, LA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  7. Sigma Sigma Sigma Inc

    EIN 273715279 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Sigma Sigma Sigma Inc

    EIN 464071202 · Headquarters: Metairie, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Sigma Sigma Sigma Inc

    EIN 742634969 · Headquarters: Thibodaux, LA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  10. Sigma Sigma Sigma Inc

    EIN 823384531 · Headquarters: Madisionville, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Sigma Theta Tau Inc

    EIN 311042666 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  12. Sigma Theta Tau Inc

    EIN 311246732 · Headquarters: Lake Charles, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Sigma Theta Tau Inc

    EIN 311309937 · Headquarters: STERLINGTON, LA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  14. Sigma Theta Tau Inc

    EIN 351928449 · Headquarters: PINEVILLE, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Sigma Theta Tau Inc

    EIN 930800172 · Headquarters: SHREVEPORT, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Sigma Theta Tau International

    EIN 311434334 · Headquarters: Thibodaux, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Sigma Theta Tau International Inc

    EIN 900012729 · Headquarters: Hammond, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Sigma Theta Tau International Inc

    EIN 900264195 · Headquarters: LaPlace, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Sigma Theta Tau International Inc

    EIN 911775037 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Silver Swan Ragtime Innovation Inc

    EIN 844891163 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Simsboro Cemetery Association Inc

    EIN 720639357 · Headquarters: Simsboro, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Singer Fishing Team

    EIN 821511578 · Headquarters: DeRidder, LA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  23. Sisters in Crime New Orleans Chapter Llc

    EIN 821110369 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  24. Sisters of Emmanuel Inc

    EIN 721032885 · Headquarters: LAKE CHARLES, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Sisters of Our Lady of Reparation

    EIN 813156279 · Headquarters: Ville Platte, LA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  26. Sisters of Our Lady of Sorrows Auxiliary Charitable Trust

    EIN 726145357 · Headquarters: SHREVEPORT, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Sisters of the Eucharistic Covenant Inc

    EIN 721088535 · Headquarters: LAFAYETTE, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Six Ward Independent Athletic Club Inc

    EIN 721092568 · Headquarters: Thibodaux, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Sjbps Education Foundation

    EIN 881465962 · Headquarters: RESERVE, LA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  30. Skybusters Hunting Club L L C

    EIN 721454124 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  31. Skye Unlimited

    EIN 831006859 · Headquarters: JONESVILLE, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Slidell Chapter 1564 Women of the Moose

    EIN 237423823 · Headquarters: Slidell, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Slidell Lodge No 2038 Loyal Order of Moose

    EIN 720645022 · Headquarters: Slidell, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Slidell Memorial Hospital

    EIN 726014895 · Headquarters: SLIDELL, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-T

  35. Slidell Newcomers Club Inc

    EIN 581889392 · Headquarters: Slidell, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Slidell Northshore Rotary Club

    EIN 721105444 · Headquarters: Slidell, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  37. Slidell Womens Civic Club

    EIN 412143061 · Headquarters: Slidell, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Slidell Youth Soccer Club Inc

    EIN 720874003 · Headquarters: Slidell, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Smart Money Louisiana

    EIN 920637517 · Headquarters: BATON ROUGE, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Smgi Organization Inc

    EIN 813722554 · Headquarters: SHREVEPORT, LA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  41. Smocking Arts Guild of America Inc

    EIN 571199698 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Smocking Arts Guild of America Inc

    EIN 581440493 · Headquarters: Metairie, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Smocking Arts Guild of America Inc

    EIN 830512876 · Headquarters: MONROE, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Smoked Meats Festival Inc

    EIN 721269045 · Headquarters: VILLE PLATTE, LA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  45. Snider Ministry

    EIN 900610090 · Headquarters: shreveport, LA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  46. Sober Up

    EIN 813742552 · Headquarters: Hammond, LA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  47. Social Marketing Association

    EIN 274280182 · Headquarters: Destrehan, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Society for Louisiana Irises

    EIN 726034653 · Headquarters: MOORINGSPORT, LA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  49. Society for Neuroscience

    EIN 475315661 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Society for Preservation & Encourmt of Barbershop Quartet Singing Amer

    EIN 237160672 · Headquarters: Bastrop, LA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

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

    EIN 726031596 · Headquarters: Shreveport, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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

    EIN 992889311 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Society for the Relief of Destitute Orphan Boys

    EIN 720408986 · Headquarters: NEW ORLEANS, LA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  54. Society of American Foresters

    EIN 237573222 · Headquarters: Alexandria, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Society of American Military Engineers

    EIN 742622163 · Headquarters: New Orleans, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  56. Society of Applied Geoscientists and Engineers Inc

    EIN 871323954 · Headquarters: St Martinville, LA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  57. Society of Government Meeting Professionals Inc

    EIN 061790405 · Headquarters: Mandeville, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Society of Louisiana Certified Public Accountants

    EIN 720464809 · Headquarters: METAIRIE, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Society of Petrophysicists and Well Log Analysts Inc

    EIN 721133291 · Headquarters: COVINGTON, LA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  60. Society of Phi Zeta Tau Chapter

    EIN 721036313 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  61. Society of St Vincent De Paul

    EIN 911911147 · Headquarters: Jefferson, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Society of Women Engineers

    EIN 271140925 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Society of Women Engineers

    EIN 300609830 · Headquarters: Ruston, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Society of Women Engineers

    EIN 721260382 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  65. Society of Women Engineers

    EIN 721298834 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Soil and Water Conservation Society

    EIN 721256113 · Headquarters: Alexandria, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Solomon Loche Post 501

    EIN 726035295 · Headquarters: Bastrop, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Somerset Trust

    EIN 726112188 · Headquarters: NEWELLTON, LA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  69. Sons of Confederate Veterans Inc

    EIN 043628994 · Headquarters: Farmerville, LA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  70. Sons of Confederate Veterans Inc

    EIN 200835188 · Headquarters: Many, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Sons of Confederate Veterans Inc

    EIN 510247363 · Headquarters: Erwinville, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Sons of Confederate Veterans Inc

    EIN 581578901 · Headquarters: New Orleans, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Sons of Confederate Veterans Inc

    EIN 581809540 · Headquarters: Sulphur, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Sons of Confederate Veterans Inc

    EIN 581825384 · Headquarters: New Iberia, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Sons of Confederate Veterans Inc

    EIN 581825426 · Headquarters: SHREVEPORT, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Sons of Confederate Veterans Inc

    EIN 582255158 · Headquarters: Winnfield, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Sons of Confederate Veterans Inc

    EIN 582395219 · Headquarters: Luling, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Sons of Confederate Veterans Inc

    EIN 582474502 · Headquarters: Grand Cane, LA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  79. Sons of Confederate Veterans Inc

    EIN 582556293 · Headquarters: Haynesville, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Sons of Confederate Veterans Inc

    EIN 582579710 · Headquarters: Washinghton, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Sons of Confederate Veterans Inc

    EIN 640766412 · Headquarters: Shreveport, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Sons of Confederate Veterans Inc

    EIN 640766430 · Headquarters: Sterlington, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Sons of Confederate Veterans Inc

    EIN 640766445 · Headquarters: Ruston, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Sons of Confederate Veterans Inc

    EIN 720841085 · Headquarters: NEW ORLEANS, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Sons of Confederate Veterans Inc

    EIN 721130222 · Headquarters: Tangipahoa, LA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  86. Sonshine Autism Foundation

    EIN 831630788 · Headquarters: Shreveport, LA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  87. Soul Train Riders Mc

    EIN 454856187 · Headquarters: Donaldsonville, LA, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  88. South Bayou Des Glaises Hunting and Fishing Club

    EIN 721190702 · Headquarters: Baton Rouge, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. South Bonne Idee Water System Inc

    EIN 721018758 · Headquarters: Oak Ridge, LA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  90. South Bossier City Citizens Assembly Inc

    EIN 721451047 · Headquarters: Bossier City, LA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  91. South Bossier Water System Inc

    EIN 720863305 · Headquarters: DOYLINE, LA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  92. South Central Pipe Trades Associati

    EIN 640889191 · Headquarters: SHREVEPORT, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. South Central Region of the Worldwide Pentecostal Fellowship

    EIN 990442982 · Headquarters: JENNINGS, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. South Claiborne Water System Inc

    EIN 720801688 · Headquarters: ATHENS, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. South Desoto Water System Inc

    EIN 721080836 · Headquarters: MANSFIELD, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. South Grant Water Corporation Inc

    EIN 237330046 · Headquarters: BENTLEY, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. South Iberville Usher Ministry

    EIN 932122966 · Headquarters: PLAQUEMINE, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. South La Womens Carnival Club Inc

    EIN 581753296 · Headquarters: HOUMA, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. South Lafourche Quarterback Club

    EIN 841764101 · Headquarters: Lockport, LA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. South Louisiana Chapter of American Institute of Architects

    EIN 203275354 · Headquarters: LAFAYETTE, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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