Unknown & Unclassified nonprofits

Unknown & Unclassified nonprofits. Browse 557,756 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. Lambda Chi Alpha Fraternity Phi-eta Zeta Chapter

    EIN 541166780 · Headquarters: Harrisonburg, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  2. Lambda Chi Alpha Fraternity Pi Omega Chapter

    EIN 475292430 · Headquarters: Odessa, FL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Lambda Chi Alpha Fraternity Sigma Zeta Chapter

    EIN 342035473 · Headquarters: Ann Arbor, MI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  4. Lambda Chi Alpha Fraternity Theta Delta Chapter

    EIN 730621458 · Headquarters: Carmel, IN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Lambda Chi Alpha FraternityZeta Chapter

    EIN 240810185 · Headquarters: State College, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Lambda Chi Alpha Gamma Rho Zeta

    EIN 730583070 · Headquarters: NORMAN, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Lambda Chi Alpha Housing Corporation

    EIN 237148456 · Headquarters: MURRAY, KY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Lambda Chi Alpha Housing Corporation University of Louisvil

    EIN 310920298 · Headquarters: Louisville, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Lambda Chi Alpha Inc Zeta Zeta House Corporation

    EIN 237132557 · Headquarters: State College, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Lambda Chi Alpha Iota Mu Zeta House Corporation

    EIN 311076749 · Headquarters: EVANSVILLE, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Lambda Chi Alpha of Clark County Inc

    EIN 310553906 · Headquarters: Springfield, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  12. Lambda Chi Alpha of Marshall Housing Authority Incorporated

    EIN 556020080 · Headquarters: Huntington, WV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Lambda Chi Alpha Phi Beta Chapter

    EIN 932515347 · Headquarters: Carmel, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Lambda Chi Alpha Prescott

    EIN 471966113 · Headquarters: Prescott, AZ, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  15. Lambda Chi Alpha-gilgal Inc

    EIN 381854008 · Headquarters: FLINT, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Lambda Chi Apha Fraternity Inc

    EIN 900069881 · Headquarters: Valparaiso, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Lambda Chi Building Association Of

    EIN 237092817 · Headquarters: GREAT BEND, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Lambda Chi Epsilon Zeta Zeta Householding Corporation

    EIN 471611079 · Headquarters: GRAND FORKS, ND, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  19. Lambda Chi Fraternity Inc

    EIN 320442666 · Headquarters: Whitewater, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Lambda Chi Fraternity Inc

    EIN 472005085 · Headquarters: BEREA, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Lambda Chi Fraternity Inc

    EIN 472222028 · Headquarters: CHICO, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Lambda Chi Fraternity Inc

    EIN 474061577 · Headquarters: Bloomsburg, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Lambda Chi Omega National Lambda Chi Omega Sorority Upsilon Chaptr

    EIN 352115445 · Headquarters: WARSAW, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Lambda Chi Omega National Soroity

    EIN 316050376 · Headquarters: Willcox, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Lambda Chi Omega Sorority

    EIN 311103264 · Headquarters: GREENVILLE, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  26. Lambda Chi Omega Sorority

    EIN 371270853 · Headquarters: Canton, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  27. Lambda Chi Omega Sorority Iota Chapter

    EIN 351902332 · Headquarters: Connersville, IN, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  28. Lambda Chi Omega Sorority Ohio Province

    EIN 364706418 · Headquarters: Ashland, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  29. Lambda Corporation

    EIN 237129434 · Headquarters: CREVE COEUR, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Lambda Corporation

    EIN 237297749 · Headquarters: Bloomington, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Lambda Delta Chapter

    EIN 270930717 · Headquarters: Owings Mills, MD, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  32. Lambda Delta of Chi Omega

    EIN 346583509 · Headquarters: KENT, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Lambda Delta Phi Corporation

    EIN 416081729 · Headquarters: MINNEAPOLIS, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Lambda Delta Phi Gamma Chapter

    EIN 237160361 · Headquarters: MINNEAPOLIS, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Lambda Eta Chapter Chi Eta Phi

    EIN 272565386 · Headquarters: Arlington, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  36. Lambda Gamma of Chi Omega House Corporation

    EIN 541133687 · Headquarters: CHARLOTTESVILLE, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Lambda Hope Inc

    EIN 453454974 · Headquarters: Clarcona, FL, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  38. Lambda House Association of Kappa Kappa Gamma Fraternity

    EIN 902638798 · Headquarters: CUYAHOGA FALLS, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  39. Lambda House Inc

    EIN 310950016 · Headquarters: ANGOLA, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Lambda Iota Chapter - Zeta Phi Beta Sorority

    EIN 331514755 · Headquarters: Frostburg, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Lambda Iota Chapter 271 of Sigma Theta Tau International Inc

    EIN 311309934 · Headquarters: UNION, NJ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  42. Lambda Iota Graduate Corporation

    EIN 356067675 · Headquarters: LAFAYETTE, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Lambda Iota Society Inc

    EIN 030188730 · Headquarters: COLCHESTER, VT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Lambda Kappa Mu Kopelles

    EIN 473268912 · Headquarters: Baltimore, MD, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  45. Lambda Kappa Sigma - Beta Epsilon

    EIN 332731035 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Lambda Kappa Sigma Alumni Association

    EIN 392238894 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Lambda Kappa Sigma Inaternational

    EIN 911970409 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Lambda Kappa Sigma International

    EIN 046156665 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Lambda Kappa Sigma International

    EIN 046156669 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Lambda Kappa Sigma International

    EIN 046156670 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  51. Lambda Kappa Sigma International

    EIN 056020778 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. Lambda Kappa Sigma International

    EIN 061309700 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Lambda Kappa Sigma International

    EIN 066090112 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Lambda Kappa Sigma International

    EIN 116083856 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Lambda Kappa Sigma International

    EIN 116083909 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Lambda Kappa Sigma International

    EIN 141745377 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  57. Lambda Kappa Sigma International

    EIN 146038664 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  58. Lambda Kappa Sigma International

    EIN 166076549 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Lambda Kappa Sigma International

    EIN 226092336 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Lambda Kappa Sigma International

    EIN 236429803 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  61. Lambda Kappa Sigma International

    EIN 236429804 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  62. Lambda Kappa Sigma International

    EIN 236429805 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Lambda Kappa Sigma International

    EIN 237071600 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Lambda Kappa Sigma International

    EIN 237272140 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. Lambda Kappa Sigma International

    EIN 237388923 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  66. Lambda Kappa Sigma International

    EIN 256063733 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Lambda Kappa Sigma International

    EIN 256085650 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Lambda Kappa Sigma International

    EIN 256085651 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  69. Lambda Kappa Sigma International

    EIN 263853686 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  70. Lambda Kappa Sigma International

    EIN 263853739 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Lambda Kappa Sigma International

    EIN 300586378 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Lambda Kappa Sigma International

    EIN 300586379 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  73. Lambda Kappa Sigma International

    EIN 336143289 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Lambda Kappa Sigma International

    EIN 346582558 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Lambda Kappa Sigma International

    EIN 356072255 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. Lambda Kappa Sigma International

    EIN 356072256 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Lambda Kappa Sigma International

    EIN 366079201 · Headquarters: MUSKEGO, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Lambda Kappa Sigma International

    EIN 366164524 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Lambda Kappa Sigma International

    EIN 386143290 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  80. Lambda Kappa Sigma International

    EIN 386143291 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Lambda Kappa Sigma International

    EIN 426091433 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  82. Lambda Kappa Sigma International

    EIN 436072536 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Lambda Kappa Sigma International

    EIN 473307884 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  84. Lambda Kappa Sigma International

    EIN 473455131 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  85. Lambda Kappa Sigma International

    EIN 473460005 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  86. Lambda Kappa Sigma International

    EIN 473473104 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Lambda Kappa Sigma International

    EIN 473519713 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Lambda Kappa Sigma International

    EIN 473537297 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  89. Lambda Kappa Sigma International

    EIN 526073661 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  90. Lambda Kappa Sigma International

    EIN 526073662 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Lambda Kappa Sigma International

    EIN 556030137 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Lambda Kappa Sigma International

    EIN 586066234 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Lambda Kappa Sigma International

    EIN 616012970 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  94. Lambda Kappa Sigma International

    EIN 616042970 · Headquarters: Muskego, WI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  95. Lambda Kappa Sigma International

    EIN 811952595 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Lambda Kappa Sigma International

    EIN 900161814 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  97. Lambda Kappa Sigma International

    EIN 916072970 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Lambda Kappa Sigma International

    EIN 916072971 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  99. Lambda Kappa Sigma International

    EIN 930799400 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  100. Lambda Kappa Sigma International

    EIN 946135348 · Headquarters: MUSKEGO, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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