Unknown & Unclassified nonprofits in Texas

Unknown & Unclassified nonprofits in Texas. Browse 39,901 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 Phi Lambda Inc

    EIN 743124322 · Headquarters: Denton, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  2. Sigma Phi Lambda Inc

    EIN 861108207 · Headquarters: Denton, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  3. Sigma Phi Lambda Inc

    EIN 943438766 · Headquarters: Corinth, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Sigma Pi Fraternity International Inc

    EIN 205609792 · Headquarters: Castle Hills, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Sigma Pi Fraternity International Inc

    EIN 450489767 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Sigma Reach

    EIN 364935676 · Headquarters: Fort Worth, TX, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  7. Sigma Sigma Phi

    EIN 016024158 · Headquarters: Cedar Park, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Sigma Sigma Phi

    EIN 311004352 · Headquarters: Fort Worth, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Sigma Sigma Sigma Inc

    EIN 273653056 · Headquarters: Arlington, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Sigma Sigma Sigma Inc

    EIN 813857325 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Sigma Theta Chapter of Sigma Alpha Mu Inc

    EIN 740898333 · Headquarters: AUSTIN, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Sigma Theta Tau Fraternity Eta Delta Chapter

    EIN 363314859 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  13. Sigma Theta Tau Inc

    EIN 237111287 · Headquarters: Dallas, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Sigma Theta Tau Inc

    EIN 237111289 · Headquarters: Fort Worth, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Sigma Theta Tau Inc

    EIN 311042715 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Sigma Theta Tau Inc

    EIN 311242899 · Headquarters: Lubbock, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Sigma Theta Tau Inc

    EIN 311242900 · Headquarters: Tyler, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Sigma Theta Tau Inc

    EIN 311309951 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Sigma Theta Tau Inc

    EIN 363314834 · Headquarters: Corpus Christi, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  20. Sigma Theta Tau Inc

    EIN 363314847 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  21. Sigma Theta Tau Inc

    EIN 363314862 · Headquarters: Dallas, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  22. Sigma Theta Tau Inc

    EIN 621092183 · Headquarters: Austin, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Sigma Theta Tau Inc

    EIN 621092199 · Headquarters: El Paso, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Sigma Theta Tau Inc

    EIN 621092203 · Headquarters: Amarillo, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Sigma Theta Tau Inc

    EIN 746070570 · Headquarters: Galveston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Sigma Theta Tau Inc

    EIN 930764502 · Headquarters: Canyon Lake, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Sigma Theta Tau International

    EIN 311242967 · Headquarters: Beaumont, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Sigma Theta Tau International Alpha Alpha Chi at Large Chapter 596

    EIN 320685260 · Headquarters: Kerrville, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Sigma Theta Tau International Alpha Gamma Gamma 625

    EIN 372150256 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Sigma Theta Tau International Honor Society of Nursing Delta Theta Chapter

    EIN 621092105 · Headquarters: ARLINGTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  31. Sigma Theta Tau International Inc

    EIN 351930735 · Headquarters: Wichita Falls Texas, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Sigma Theta Tau International Inc

    EIN 882013115 · Headquarters: El Paso, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Sigma Theta Tau International Inc

    EIN 900266186 · Headquarters: Stephenville, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Sigma Theta Tau International Inc

    EIN 900738320 · Headquarters: Bryan, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Sigma Theta Tau International Inc

    EIN 911935307 · Headquarters: Nacogdoches, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Sigma Theta Tau International Inc

    EIN 912039501 · Headquarters: EDINBURG, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Sigma Zeta House Corporation Chi Omega

    EIN 751612804 · Headquarters: Dallas, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Sigms Phi Alpha Dental Hygiene Honor Society

    EIN 202942036 · Headquarters: Austin, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Sigue La Tradicion

    EIN 334803796 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Sikh Legal Aid

    EIN 831116226 · Headquarters: Garland, TX, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  41. Sikh Study Circle Dfw Inc

    EIN 752303235 · Headquarters: IRVING, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  42. Silicon Integration Initiative Inc

    EIN 841100665 · Headquarters: Round Rock, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Silman Springs Property Owners Association Ii

    EIN 473643094 · Headquarters: Katy, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Siloah Cementary Assoc

    EIN 741897645 · Headquarters: McDade, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Silsbee Chamber of Commerce

    EIN 741509074 · Headquarters: Silsbee, TX, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  46. Silsbee Little League

    EIN 862508614 · Headquarters: Silsbee, TX, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  47. Silsbee Pines Event Center

    EIN 742130155 · Headquarters: Silsbee, TX, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  48. Silver Age America

    EIN 273232817 · Headquarters: Katy, TX, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  49. Silver Bullet Bass Busters

    EIN 010940766 · Headquarters: ODESSA, TX, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  50. Silver Creek Village Water Supply

    EIN 742764215 · Headquarters: BURNET, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  51. Silver Lake Cemetery Association Inc

    EIN 752102461 · Headquarters: Mineola, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Silver Rayne Horse Rescue

    EIN 812475616 · Headquarters: El Paso, TX, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  53. Silver Strings

    EIN 752418085 · Headquarters: NOCONA, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Silver Valley Ministries

    EIN 760143551 · Headquarters: UVALDE, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  55. Silverliners International Dfw

    EIN 862690386 · Headquarters: Colleyville, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. SilverLiningRanchandRescueInc

    EIN 473947410 · Headquarters: Springtown, TX, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  57. Silverton Chamber of Commerce

    EIN 752598390 · Headquarters: SILVERTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Silverton Volunteer Ambulance Inc

    EIN 237171598 · Headquarters: SILVERTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Silverton Youth Sports

    EIN 474891623 · Headquarters: SILVERTON, TX, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  60. Sim Advisory Board

    EIN 991518733 · Headquarters: Flower Mound, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Simionescu Scholarship Foundation

    EIN 222878206 · Headquarters: DALLAS, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  62. Simmons Shores Property Owner Assn

    EIN 751375409 · Headquarters: Pottsboro, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  63. Simon & Louise Henderson Foundation

    EIN 756022769 · Headquarters: LUFKIN, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  64. Simon Purvis Ministries Inc

    EIN 751762850 · Headquarters: Lufkin, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Simply Blessed Kids Inc

    EIN 854117189 · Headquarters: Humble, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Simpson Charitable Trust

    EIN 756362586 · Headquarters: ABILENE, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Simpson-Omohundro Foundation Omohundro Educational Trust

    EIN 760260102 · Headquarters: Beaumont, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  68. Simpsonville Cemetary Perpetual Care Fund Inc

    EIN 237121271 · Headquarters: PITTSBURG, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Simpsonville Volunteer Fire Department

    EIN 752481182 · Headquarters: GILMER, TX, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  70. Sims-strong Individuals Making Strides

    EIN 931736381 · Headquarters: Watauga Road, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Sin Pausa Foundation Inc

    EIN 422991890 · Headquarters: Humble, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Singers Consortia

    EIN 900799112 · Headquarters: Canyon, TX, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  73. Singing Hills Commercial Property Owners Association Inc

    EIN 475635086 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  74. Single Professionals Network of San Antonio

    EIN 460695922 · Headquarters: San Antonio, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Singles in Agriculture

    EIN 391592884 · Headquarters: GUSTINE, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  76. Singularity Solar Energy

    EIN 273837897 · Headquarters: Mckinney, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  77. Sinton Cemetery Association

    EIN 741271966 · Headquarters: SINTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Sinton Chamber of Commerce

    EIN 741073733 · Headquarters: SINTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. Sinton Municipal Golf Association

    EIN 741259637 · Headquarters: SINTON, TX, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  80. Sipe Springs Cemetery Association

    EIN 751945279 · Headquarters: Comanche, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. SIPES Foundation

    EIN 751836869 · Headquarters: Richardson, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  82. Sir Earl Toon Foundation

    EIN 884331427 · Headquarters: DALLAS, TX, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  83. Sire Inc

    EIN 742168515 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Sisk Ministries

    EIN 743005208 · Headquarters: George West, TX, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  85. Sistahs of Soul

    EIN 814896661 · Headquarters: KATY, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  86. Sistahz Full Circle Inc

    EIN 863090280 · Headquarters: PORTER, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Sister Mary Mullally Loyola Foundation

    EIN 756432907 · Headquarters: DALLAS, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  88. Sisterdale Chamber of Commerce

    EIN 746067860 · Headquarters: Boerne, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Sisters Fellowship International Inc Cypress Chapter

    EIN 822052892 · Headquarters: CYPRESS, TX, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  90. Sisters of Aloha

    EIN 710996673 · Headquarters: grand prarie, TX, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  91. Sisters of Zion

    EIN 854153230 · Headquarters: Pearland, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Sisters United Strong Hands Inc

    EIN 871678034 · Headquarters: DALLAS, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Sitaa USA Inc

    EIN 474053038 · Headquarters: Sugarland, TX, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  94. Sivalls Inc and Control Equipment Inc Medical Plan Trust

    EIN 751762644 · Headquarters: ODESSA, TX, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  95. Six Mile Garden Club

    EIN 843901377 · Headquarters: Hemphill, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Sixty Two Club

    EIN 237060442 · Headquarters: Fort Worth, TX, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  97. Size of a Man

    EIN 825122130 · Headquarters: Waco, TX, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  98. Sj Visual Arts Productions Inc

    EIN 030443214 · Headquarters: HOUSTON, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Skel-tex Credit Union

    EIN 750939167 · Headquarters: Skellytown, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  100. Sketch Foundation

    EIN 954505487 · Headquarters: SOUTHLAKE, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

First page and all pages