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. Sierra Sage Regional Services of Na Inc

    EIN 880224285 · Headquarters: RENO, NV, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  2. Sierra Sage Womens Golf Club

    EIN 880255030 · Headquarters: Reno, NV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Sierra Salem Christian Homes

    EIN 770258318 · Headquarters: Modesto, CA, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Sierra School Parents Club

    EIN 680197905 · Headquarters: PLACERVILLE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. Sierra Service Center Council

    EIN 900215981 · Headquarters: Bakersfield, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  6. Sierra Services for the Blind

    EIN 942760029 · Headquarters: NEVADA CITY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Sierra Sky Park Property Owners Assn Inc

    EIN 237124641 · Headquarters: FRESNO, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Sierra Sportsmens Club

    EIN 810618457 · Headquarters: Macomb, MI, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  9. Sierra Sportsmens Club and Junior Division Inc

    EIN 202657577 · Headquarters: Susanville, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Sierra Squares Square Dance Club

    EIN 943058042 · Headquarters: Shingle Springs, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Sierra Sunrise Ranch Road Committee

    EIN 770398742 · Headquarters: Exeter, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Sierra Sunset Well

    EIN 611530465 · Headquarters: Sierra Vista, AZ, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  13. Sierra Trail Dogs LLC

    EIN 262460158 · Headquarters: Rocklin, CA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990

  14. Sierra Tribal Consortium Inc

    EIN 942494904 · Headquarters: FRESNO, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  15. Sierra Valley Water Company

    EIN 941409913 · Headquarters: Beckwourth, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Sierra View Christian Educational Endowment Inc

    EIN 770235467 · Headquarters: EXETER, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  17. Sierra View Homes

    EIN 946088811 · Headquarters: REEDLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Sierra Village Inc

    EIN 770322895 · Headquarters: VISALIA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  19. Sierra Village Mutual Water Co

    EIN 946104169 · Headquarters: TWAIN HARTE, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  20. Sierra Vista - Douglas Mutual Water Co

    EIN 742027768 · Headquarters: CENTENNIAL, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. Sierra Vista Aces Incorporated

    EIN 423532851 · Headquarters: Sierra Vista, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Sierra Vista Association C/o Pmi Properties

    EIN 237260940 · Headquarters: NEW CITY, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Sierra Vista Camera Club

    EIN 860446832 · Headquarters: Sierra Vista, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Sierra Vista Car Club Inc

    EIN 860634895 · Headquarters: Sierra Vista, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Sierra Vista Center Inc

    EIN 680087395 · Headquarters: COLFAX, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Sierra Vista Cochise Chapter Womens Council of Realtors

    EIN 860705108 · Headquarters: Sierra Vista, AZ, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  27. Sierra Vista Community Tennis Association Inc

    EIN 463683401 · Headquarters: Sierra Vista, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Sierra Vista Elementary Pta

    EIN 901217699 · Headquarters: LA HABRA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  29. Sierra Vista Elementary Ptc

    EIN 770424531 · Headquarters: Clovis, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Sierra Vista Hospital Development Organization Inc

    EIN 262313551 · Headquarters: TRUTH OR CONSEQUENCES, NM, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. Sierra Vista Middle School Ptsa - a California Congress of Pta

    EIN 330102833 · Headquarters: IRVINE, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Sierra Vista Rod & Gun Club

    EIN 942729881 · Headquarters: SIERRA VISTA, AZ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  33. Sierra Vista South Cooperative Inc

    EIN 850361949 · Headquarters: Cedar Crest, NM, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  34. Sierra Vista United Korean Presbyterian Church

    EIN 860558394 · Headquarters: SIERRA VISTA, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Sierra Vista Water Association

    EIN 911206727 · Headquarters: CAMANO ISLAND, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  36. Sierra Vista Womans Club Inc

    EIN 953433605 · Headquarters: Sierra Vista, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Sierra West Bernese Mtn Dog Club

    EIN 680175812 · Headquarters: Mountain View, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Sierra Womens Service Club

    EIN 770432990 · Headquarters: Prather, CA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  39. Sierra-cascade Logging Conference

    EIN 941557130 · Headquarters: REDDING, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  40. Sierraville Community Church

    EIN 942343306 · Headquarters: SIERRAVILLE, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Siervas De Cristo Resucitado

    EIN 460739682 · Headquarters: Bronx, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  42. Siesta Isles Association Inc

    EIN 596218086 · Headquarters: Siesta Key, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Siesta Key Association of Sarasota Inc

    EIN 237260403 · Headquarters: Sarasota, FL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  44. Siesta Key Chamber of Commerce Inc

    EIN 592798966 · Headquarters: SARASOTA, FL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. Siesta Key Environmental Defense Fund Inc

    EIN 814842324 · Headquarters: Sarasota, FL, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  46. Siesta Key Village Maintenance

    EIN 273615530 · Headquarters: SARASOTA, FL, USA · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  47. Sietar Chicagoland

    EIN 364031587 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  48. Sieverner-plattdeutscher Club

    EIN 116039901 · Headquarters: Franklin Square, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Sifat

    EIN 630776048 · Headquarters: Lineville, AL, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Sifco Foundation

    EIN 346531019 · Headquarters: CLEVELAND, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  51. Siff Charitable Foundation C/o Grkb

    EIN 046112346 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  52. Siff Cinema Workers Union

    EIN 923516805 · Headquarters: Seattle, WA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  53. SIFTMedia Collective

    EIN 392873542 · Headquarters: Philadelphia, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  54. Sig Fiji Alumni Association

    EIN 510189944 · Headquarters: FAIRBORN, OH, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  55. Sig House Company

    EIN 010816719 · Headquarters: Oakwood, OH, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  56. Sigalov & Pechersky Family Foundation

    EIN 873935975 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  57. Sigel Family Foundation Inc

    EIN 464660634 · Headquarters: millbury, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  58. Sigel Mutual Insurance Company

    EIN 376039069 · Headquarters: SIGEL, IL, USA · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990

  59. Sight & Handicapped Foundation Of

    EIN 222303616 · Headquarters: MANCHESTER TW, NJ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Sight & Hearing Association

    EIN 410724037 · Headquarters: Saint Paul, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  61. Sight and Equitable Eye Care for India Nfp

    EIN 461481707 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  62. Sight Conservation Committee of Danville Danville Lions Club

    EIN 546062172 · Headquarters: DANVILLE, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Sight Loss Services Inc

    EIN 042998072 · Headquarters: SOUTH DENNIS, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  64. Sight Loss Support Group of Cen- Tral Pennsylvania Inc

    EIN 251425250 · Headquarters: Lemont, PA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. Sight Seer Inc

    EIN 382477969 · Headquarters: Grand Rapids, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Sightline Institute

    EIN 521833599 · Headquarters: Seattle, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Sightseers

    EIN 842890276 · Headquarters: Salem, OR, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Sigler Cemetery Fund

    EIN 621605749 · Headquarters: Brighton, TN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Sigm Alpha Iota Fraternity

    EIN 431957988 · Headquarters: Asheville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Sigm Chi Fraternity

    EIN 340529720 · Headquarters: Cleveland, OH, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Sigm Theta Tau Inc

    EIN 311042676 · Headquarters: Manchester, NH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  72. Sigma Alpha Building Corporation

    EIN 810406791 · Headquarters: MISSOULA, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Sigma Alpha Chapter of Omega Nu

    EIN 237348116 · Headquarters: SANTA CRUZ, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Sigma Alpha Epsilon

    EIN 151823530 · Headquarters: West Chester, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Sigma Alpha Epsilon

    EIN 340728828 · Headquarters: CONCORD, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Sigma Alpha Epsilon

    EIN 453278883 · Headquarters: kingston, RI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. Sigma Alpha Epsilon

    EIN 640315254 · Headquarters: Oxford, MS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Sigma Alpha Epsilon

    EIN 934567457 · Headquarters: Dahlonega, GA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  79. Sigma Alpha Epsilon - California Delta Chapter

    EIN 951222410 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Sigma Alpha Epsilon - California Gamma Chapter

    EIN 951782264 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Sigma Alpha Epsilon - Il Epsilon Chapter - Inc

    EIN 264659136 · Headquarters: Peoria, IL, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  82. Sigma Alpha Epsilon - Texas Omega

    EIN 271287844 · Headquarters: Wichita Falls, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  83. Sigma Alpha Epsilon Alabama Mu Chapter

    EIN 630188870 · Headquarters: TUSCALOOSA, AL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Sigma Alpha Epsilon Alumni Association Dba Colorado Zeta Alumni Assoc of Sigma

    EIN 846031823 · Headquarters: DENVER, CO, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Sigma Alpha Epsilon Building Assn

    EIN 237426814 · Headquarters: LINCOLN, NE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Sigma Alpha Epsilon Club of Columbia Missouri

    EIN 436075111 · Headquarters: COLUMBIA, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Sigma Alpha Epsilon Colorado Delta Association

    EIN 846036218 · Headquarters: ENGLEWOOD, CO, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  88. Sigma Alpha Epsilon Fraternity

    EIN 141343303 · Headquarters: Troy, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Sigma Alpha Epsilon Fraternity

    EIN 150543510 · Headquarters: ITHACA, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Sigma Alpha Epsilon Fraternity

    EIN 200466843 · Headquarters: Henderson, NV, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Sigma Alpha Epsilon Fraternity

    EIN 202575653 · Headquarters: Kansas City, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Sigma Alpha Epsilon Fraternity

    EIN 203459624 · Headquarters: Washington, DC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Sigma Alpha Epsilon Fraternity

    EIN 205466363 · Headquarters: Wichita, KS, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Sigma Alpha Epsilon Fraternity

    EIN 237134026 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  95. Sigma Alpha Epsilon Fraternity

    EIN 237134114 · Headquarters: San Francisco, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  96. Sigma Alpha Epsilon Fraternity

    EIN 237166519 · Headquarters: Morehead, KY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Sigma Alpha Epsilon Fraternity

    EIN 237184555 · Headquarters: jackson, TN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Sigma Alpha Epsilon Fraternity

    EIN 261110388 · Headquarters: Pensacola, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Sigma Alpha Epsilon Fraternity

    EIN 261526725 · Headquarters: Thibodaux, LA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  100. Sigma Alpha Epsilon Fraternity

    EIN 262035088 · Headquarters: Mount Pleasant, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

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