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. Theta Chapter of Phi Sigma Sigma Inc

    EIN 370659519 · Headquarters: CHAMPAIGN, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Theta Chapter of Rho Epsilon Iota

    EIN 333776486 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  3. Theta Chapter of Theta Chi

    EIN 392549308 · Headquarters: Amherst, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Theta Charity Events Inc

    EIN 742051004 · Headquarters: HOUSTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Theta Chi Alumni Assoc of ODU Inc

    EIN 542015923 · Headquarters: Virginia Beach, VA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Theta Chi Alumni Association Delta Gamma Chapter

    EIN 841754724 · Headquarters: BUCKHANNON, WV, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  7. Theta Chi Alumni Association Sigma

    EIN 936032294 · Headquarters: CORVALLIS, OR, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Theta Chi Building Association

    EIN 916034348 · Headquarters: PULLMAN, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Theta Chi Building Association Inc

    EIN 204479914 · Headquarters: BANGOR, ME, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  10. Theta Chi Building Association of Ann Arbor Mi

    EIN 386063281 · Headquarters: TENAFLY, NJ, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  11. Theta Chi Chapter House Corporation of Sigma Kappa Sorority

    EIN 550704581 · Headquarters: MORGANTOWN, WV, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  12. Theta Chi Corporation

    EIN 426063946 · Headquarters: BETTENDORF, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  13. Theta Chi Delta Iota Alumni Corporation Nfp

    EIN 201025712 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  14. Theta Chi Epsilon Psi Chapter

    EIN 933551306 · Headquarters: Newark, NJ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Theta Chi Epsilon Rho Chapter

    EIN 871600800 · Headquarters: Lawrenceville, NJ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Theta Chi Epsilon Sigma Alumni

    EIN 991191751 · Headquarters: Raleigh, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Theta Chi Eta Omega Historic House Foundation Inc

    EIN 334792685 · Headquarters: Redlands, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Theta Chi Fraternity

    EIN 371741780 · Headquarters: Stockton, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Theta Chi Fraternity

    EIN 464309041 · Headquarters: New Brunswick, NJ, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  20. Theta Chi Fraternity

    EIN 930295897 · Headquarters: CORVALLIS, OR, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Theta Chi Fraternity Alpha Chi Alumni Co

    EIN 150560506 · Headquarters: Chesterfield, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Theta Chi Fraternity Alpha Mu Chapter

    EIN 420560985 · Headquarters: AMES, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Theta Chi Fraternity Alpha Phi Chapter

    EIN 630289653 · Headquarters: TUSCALOOSA, AL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Theta Chi Fraternity Alpha Sigma

    EIN 930295895 · Headquarters: EUGENE, OR, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Theta Chi Fraternity Alpha Tau Chapter

    EIN 314324100 · Headquarters: Athens, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  26. Theta Chi Fraternity Alpho Rho Chapter

    EIN 910438770 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Theta Chi Fraternity Alumni

    EIN 166071498 · Headquarters: HAMILTON, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  28. Theta Chi Fraternity Beta Lambda Chapter

    EIN 346561979 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Theta Chi Fraternity Beta Nu Chapter

    EIN 263718867 · Headquarters: Cleveland, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Theta Chi Fraternity Beta Omicron Chapter

    EIN 310542361 · Headquarters: Cincinnati, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Theta Chi Fraternity Beta Theta Chapter

    EIN 863717230 · Headquarters: Philadelphia, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Theta Chi Fraternity Delta Beta Chapter

    EIN 580587177 · Headquarters: ATHENS, GA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Theta Chi Fraternity Delta Omega Chapter

    EIN 396096922 · Headquarters: RIPON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Theta Chi Fraternity Delta Psi Chapter

    EIN 863712989 · Headquarters: Lawrence, KS, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. Theta Chi Fraternity Delta Upsilon

    EIN 861498316 · Headquarters: TEMPE, AZ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  36. Theta Chi Fraternity Epsilon Theta Chapter

    EIN 042211737 · Headquarters: Somerville, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  37. Theta Chi Fraternity Eta Gamma Chapter

    EIN 237120464 · Headquarters: Morehead, KY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  38. Theta Chi Fraternity Ets Psi Chapter

    EIN 454390401 · Headquarters: Birmingham, AL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Theta Chi Fraternity Gamma Phi Chapter

    EIN 470379366 · Headquarters: Lincoln, NE, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. Theta Chi Fraternity Inc

    EIN 010264358 · Headquarters: Bangor, ME, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  41. Theta Chi Fraternity Inc

    EIN 042112594 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Theta Chi Fraternity Inc

    EIN 210577978 · Headquarters: CARMEL, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Theta Chi Fraternity Inc

    EIN 237282583 · Headquarters: Findlay, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Theta Chi Fraternity Inc

    EIN 310965609 · Headquarters: New Kensington, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  45. Theta Chi Fraternity Inc

    EIN 311111790 · Headquarters: Akron, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Theta Chi Fraternity Inc

    EIN 320434811 · Headquarters: Rochester, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Theta Chi Fraternity Inc

    EIN 410709519 · Headquarters: St Paul, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Theta Chi Fraternity Inc

    EIN 426095200 · Headquarters: Des Moines, IA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Theta Chi Fraternity Inc

    EIN 454428971 · Headquarters: Fort Collins, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Theta Chi Fraternity Inc

    EIN 475507800 · Headquarters: Thornton, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Theta Chi Fraternity Inc

    EIN 550394972 · Headquarters: Buckhannon, WV, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  52. Theta Chi Fraternity Inc

    EIN 591515489 · Headquarters: GAINESVILLE, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Theta Chi Fraternity Inc

    EIN 852697280 · Headquarters: Raleigh, NC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Theta Chi Fraternity Inc

    EIN 853683596 · Headquarters: Albany, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Theta Chi Fraternity Inc

    EIN 861888475 · Headquarters: Stillwater, OK, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  56. Theta Chi Fraternity Inc

    EIN 910438765 · Headquarters: PULLMAN, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Theta Chi Fraternity Inc Alpha Zeta Alumnae Chapter

    EIN 166062757 · Headquarters: ROCHESTER, NY, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  58. Theta Chi Fraternity Inc Beta Delta Chap

    EIN 221326175 · Headquarters: SOMERSET, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Theta Chi Fraternity Inc Delta Chapter

    EIN 141344369 · Headquarters: TROY, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Theta Chi Fraternity Inc Epsilon Sigma Chapter

    EIN 136165602 · Headquarters: Staten Island, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Theta Chi Fraternity Iota Beta Chapter

    EIN 431871240 · Headquarters: SPRINGFIELD, MO, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  62. Theta Chi Fraternity Iota Chapter

    EIN 150539994 · Headquarters: HAMILTON, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Theta Chi Fraternity Iota Tau Chapter

    EIN 462201056 · Headquarters: Highland Heights, KY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Theta Chi Fraternity Kappa Alpha Chapter

    EIN 833564728 · Headquarters: SPOKANE, WA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  65. Theta Chi Fraternity Kappa Zeta Chapter

    EIN 320627988 · Headquarters: Fayetteville, AR, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  66. Theta Chi Fraternity Mu Chap Assoc

    EIN 237426949 · Headquarters: PLAINSBORO, NJ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Theta Chi Fraternity Phi Chapter

    EIN 450202085 · Headquarters: FARGO, ND, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. Theta Chi Fraternity University of Nebraska Lincoln

    EIN 263321891 · Headquarters: Lincoln, NE, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  69. Theta Chi Fraternity Zeta Omicron

    EIN 821048681 · Headquarters: Shippensburg, PA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  70. Theta Chi Fraternity Zeta Psi Chapter

    EIN 473744995 · Headquarters: MACOMB, IL, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  71. Theta Chi Fraternity Zeta-lambda Alumni

    EIN 251317759 · Headquarters: New Wilmington, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  72. Theta Chi Gamma Chi Chapter

    EIN 414259062 · Headquarters: Ashland, VA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Theta Chi Iota Kappa

    EIN 010961204 · Headquarters: Flagstaff, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Theta Chi Iota Sigma Alumni Association

    EIN 822794605 · Headquarters: Towson, MD, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  75. Theta Chi of Towson University

    EIN 460736005 · Headquarters: TOWSON, MD, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. Theta Chi Theta Omega

    EIN 993137087 · Headquarters: Boone, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Theta Corporation of Theta Chi Fraternity

    EIN 046144059 · Headquarters: Needham, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Theta Delta Chapter of the Chi Phi Fraternity Housing Corporation

    EIN 593492454 · Headquarters: Tampa, FL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. Theta Delta Chi

    EIN 256086758 · Headquarters: STATE COLLEGE, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Theta Delta Chi Fraternity Beta Deuteron Chapter

    EIN 420560990 · Headquarters: AMES, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Theta Delta Chi Realty Company

    EIN 426064404 · Headquarters: AMES, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  82. Theta Delta Chi Theta Deuteron

    EIN 046115213 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Theta Delta of Chi Omega House Corporation Inc

    EIN 472292321 · Headquarters: Waukesha, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Theta Education Foundation of Texas Tech

    EIN 237047333 · Headquarters: LUBBOCK, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Theta Elders Association Inc

    EIN 237336439 · Headquarters: East Hampton, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Theta Epsilon Chapter House Corporation of Delta Delta Delta

    EIN 742238155 · Headquarters: GEORGETOWN, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  87. Theta Epsilon Chapter Theta Chi Fraternity

    EIN 273924552 · Headquarters: Kennesaw, GA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Theta Epsilon House Association Inc

    EIN 631214988 · Headquarters: Mobile, AL, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  89. Theta Eta Chapter of Chi Eta Phi Sorority Inc

    EIN 800330919 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  90. Theta Eta Chapter of Delta Zeta House Corporation

    EIN 476034958 · Headquarters: OMAHA, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Theta Eta Chapter of Theta Chi Fraternity

    EIN 760386600 · Headquarters: CYPRESS, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Theta Eta House Corporation of Delta Delta Delta Fraternity

    EIN 836005183 · Headquarters: LARAMIE, WY, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  93. Theta Iota Chapter Housing Corporation

    EIN 611230466 · Headquarters: INDIANAPOLIS, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Theta Iota Chapter of Alpha Chi Omega Fraternity Inc

    EIN 521389567 · Headquarters: INDIANAPOLIS, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Theta Kappa Building Association of Chi Omega

    EIN 741930958 · Headquarters: Waco, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Theta Kappa Chapter of Delta Zeta House Corporation

    EIN 237288365 · Headquarters: Metairie, LA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  97. Theta Kappa Chapter of Theta Chi

    EIN 861714307 · Headquarters: Lubbock, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Theta Kappa House Corporation

    EIN 752137544 · Headquarters: ARLINGTON, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Theta Kappa Inc Lambda Chi Alpha

    EIN 237132598 · Headquarters: TERRE HAUTE, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Theta Lambda House Corporation of Kappa Delta Sorority

    EIN 474252023 · Headquarters: MILWAUKEE, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

First page and all pages