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. Sir Michael E Steele Priorate 2

    EIN 464557134 · Headquarters: Nashville, TN, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  2. Sir Michael Fitzgerald KOFC Council 5221

    EIN 472780181 · Headquarters: Florence, AZ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  3. Sir Thomas Beecham Society Inc

    EIN 800178192 · Headquarters: Topanga, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  4. Siracc Inc

    EIN 812553241 · Headquarters: Cincinnati, OH, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  5. Sire Inc

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

  6. Siren Chamber of Commerce Inc

    EIN 391463454 · Headquarters: SIREN, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Siren Education Association

    EIN 391544461 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Siren Education Support Professionals

    EIN 262904695 · Headquarters: MADISON, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Siren Senior Center Inc

    EIN 391265162 · Headquarters: Siren, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Sirens Professional Association of Fire Service Women

    EIN 203945040 · Headquarters: Long Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  11. Sirgany Foundation Inc

    EIN 592056953 · Headquarters: PINECREST, FL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  12. Siriram Family Foundation Inc

    EIN 333121658 · Headquarters: NEW YORK, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Siris S Dreamcatcher Memorial Scholarship Inc

    EIN 991636149 · Headquarters: Kingman, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Sirius Fund

    EIN 363712587 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  15. Sirius Inc

    EIN 042652930 · Headquarters: SHUTESBURY, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  16. Sirius Readers Inc

    EIN 351853659 · Headquarters: Fort Wayne, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Sirk Family Foundation

    EIN 366080222 · Headquarters: DUBUQUE, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  18. Sirloin Club of Oklahoma

    EIN 736102813 · Headquarters: Oklahoma City, OK, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. Sirmons Group Ministries Inc

    EIN 882969644 · Headquarters: Melbourne, FL, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  20. Siron Foundation Co Jeffrey Sartell

    EIN 396508464 · Headquarters: Whitewater, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  21. Sirrah Foundation

    EIN 770652111 · Headquarters: Los Angeles, CA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  22. Sis Ptso

    EIN 464920231 · Headquarters: SELAH, WA, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  23. Sisar Mutual Water Co

    EIN 956095719 · Headquarters: SANTA PAULA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  24. Sisdac Salt Lake City Church Inc

    EIN 844312333 · Headquarters: WEST JORDAN, UT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Sisdgolc Llc

    EIN 824264003 · Headquarters: WEST JORDAN, UT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Sisk Foundation

    EIN 570817902 · Headquarters: GREENVILLE, SC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  27. Sisk Ministries

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

  28. Siskiyou Audubon Society

    EIN 930866572 · Headquarters: Grants Pass, OR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Siskiyou Bowmen and Field Archers

    EIN 946107881 · Headquarters: HORNBROOK, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  30. Siskiyou Chapter American Rock Garden Society

    EIN 943124997 · Headquarters: Central Point, OR, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Siskiyou Chapter Native Plant Society of Oregon

    EIN 931099927 · Headquarters: ASHLAND, OR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Siskiyou Child Care Council Inc

    EIN 942674706 · Headquarters: WEED, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  33. Siskiyou Community Health Center

    EIN 930628804 · Headquarters: GRANTS PASS, OR, United States · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Siskiyou County Farm Bureau

    EIN 941198510 · Headquarters: YREKA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Siskiyou County Fire Chiefs Inc

    EIN 941689311 · Headquarters: Yreka, CA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  36. Siskiyou County Historical Society

    EIN 946107637 · Headquarters: YREKA, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Siskiyou County Library Vestal Foundation

    EIN 680397898 · Headquarters: YREKA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Siskiyou County Probation and Juvenile Peace Officers Associatio

    EIN 611565666 · Headquarters: Yreka, CA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  39. Siskiyou Credit Union

    EIN 941588778 · Headquarters: YREKA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. Siskiyou Decorative Artists

    EIN 931074761 · Headquarters: Rogue River, OR, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. Siskiyou Fraternity

    EIN 930696424 · Headquarters: ROGUE RIVER, OR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Siskiyou Habitat for Humanity

    EIN 680159627 · Headquarters: YREKA, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  43. Siskiyou History Alliance

    EIN 472886566 · Headquarters: Yreka, CA, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  44. Siskiyou Institute

    EIN 943167747 · Headquarters: FORT JONES, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Siskiyou Lake Highlands Mutual Water Co

    EIN 680318074 · Headquarters: WEED, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  46. Siskiyou Mountain Men

    EIN 680235570 · Headquarters: YREKA, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Siskiyou Singers

    EIN 930875009 · Headquarters: ASHLAND, OR, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Siskiyou South Lions Club

    EIN 823899071 · Headquarters: Mount Shasta, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  49. Siskiyou Sports Car Club Inc

    EIN 930564745 · Headquarters: MEDFORD, OR, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Siskypaa

    EIN 464928496 · Headquarters: Mount Shasta, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  51. Sisler Mcfawn Foundation Pfdn

    EIN 346508111 · Headquarters: BROOKLYN, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  52. Sisolak Benefit

    EIN 464652367 · Headquarters: Jacksonville, FL, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  53. Sissen Inc

    EIN 833757094 · Headquarters: randallstown, MD, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  54. Sisseton Economic Development Corporation

    EIN 363482696 · Headquarters: SISSETON, SD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Sisseton Senior Citizens Association Inc

    EIN 237225638 · Headquarters: SISSETON, SD, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  56. Sisseton Swimming Pool Assoc Inc

    EIN 460367034 · Headquarters: SISSETON, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. Sista 2 Sista

    EIN 834469985 · Headquarters: Sicklerville, NJ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Sista Girls Corporation the Queen Within

    EIN 352370849 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  59. Sistah Keepers Cafe

    EIN 203046557 · Headquarters: Athens, GA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  60. Sistahs

    EIN 272957248 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  61. Sistahs Can We Talk Inc

    EIN 811777166 · Headquarters: VALLEY CENTER, KS, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Sistahs Keep Her Network

    EIN 261867685 · Headquarters: Jamestown, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  63. Sistahs of Soul

    EIN 453849623 · Headquarters: Saint Louis, MO, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  64. Sistahs of Soul

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

  65. Sistahz Full Circle Inc

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

  66. Sistars in Service

    EIN 853731623 · Headquarters: Newark, NJ, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  67. Sistas of Compassion

    EIN 464704121 · Headquarters: DETROIT, MI, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  68. Sistas on the Move Inc

    EIN 611602916 · Headquarters: Kalamazoo, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Sistas with a Vision Inc

    EIN 462667142 · Headquarters: PORT SAINT LUCIE, FL, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  70. Sistatalkphl

    EIN 861788168 · Headquarters: LANSDOWNE, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  71. Sister Cecilia Schneider Community Housing Development Fund Corp

    EIN 133578717 · Headquarters: STATEN ISLAND, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Sister Circle Empowerment Ministry Inc I

    EIN 473455894 · Headquarters: Vero Beach, FL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  73. Sister Cities Assn of Sioux Falls

    EIN 460411673 · Headquarters: Sioux Falls, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Sister Cities Association of Belvidere Illinois Inc

    EIN 363581593 · Headquarters: Belvidere, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Sister Cities Association of Cary Inc

    EIN 561688022 · Headquarters: CARY, NC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  76. Sister Cities Association of Concord North Carolina

    EIN 561745557 · Headquarters: Concord, NC, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. Sister Cities Association of Corning New York Inc

    EIN 161310323 · Headquarters: Corning, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Sister Cities Association of Mansfi

    EIN 341558548 · Headquarters: MANSFIELD, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Sister Cities Association of Spokane

    EIN 943101734 · Headquarters: Spokane, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Sister Cities Association of Springfield Missouri

    EIN 431363524 · Headquarters: SPRINGFIELD, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Sister Cities International Inc

    EIN 520859021 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Sister Cities International of Hartford Ct Inc

    EIN 223072541 · Headquarters: Plainville, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  83. Sister Cities Lawrence

    EIN 481136430 · Headquarters: Lawrence, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  84. Sister Cities of Jasper Inc

    EIN 311162341 · Headquarters: JASPER, IN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Sister Cities of Louisville Inc

    EIN 311013590 · Headquarters: LOUISVILLE, KY, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  86. Sister Cities of Wilmington Inc

    EIN 510147679 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Sister City Affiliation Committee

    EIN 956134130 · Headquarters: Montebello, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Sister City Association of Garden Grove

    EIN 330424471 · Headquarters: GARDEN GROVE, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Sister City Association of Huntington Beach Inc

    EIN 330149879 · Headquarters: HUNTINGTON BEACH, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Sister City Association of Oakwood Ohio

    EIN 237404346 · Headquarters: Oakwood, OH, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  91. Sister City Association of Prescott

    EIN 942750500 · Headquarters: Prescott, AZ, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  92. Sister City Association of Springfield Illinois

    EIN 371241500 · Headquarters: Springfield, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Sister City Association of Tracy Inc

    EIN 943127353 · Headquarters: Tracy, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Sister City Committee of Glens Falls and Warren County Ny Inc

    EIN 222992100 · Headquarters: GLENS FALLS, NY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Sister City-ussr

    EIN 680178940 · Headquarters: Santa Rosa, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Sister Claire Marie Wick-triniteam Foundation Inc

    EIN 391577314 · Headquarters: Eau Claire, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Sister Connection for Breast Cancer

    EIN 142001237 · Headquarters: San Diego, CA, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  98. Sister Hood Outreach Inc

    EIN 200347843 · Headquarters: Ocala, FL, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  99. Sister Jerome's Schools Inc

    EIN 341202596 · Headquarters: YOUNGSTOWN, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Sister Joyce Blum Book

    EIN 383934784 · Headquarters: PANAMA, IA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

First page and all pages