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. Big Brothers Big Sisters of Berks County Pa

    EIN 236463243 · Headquarters: READING, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Big Brothers Big Sisters of Big Sky Country

    EIN 810359636 · Headquarters: BOZEMAN, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  3. Big Brothers Big Sisters of Blair County Inc

    EIN 251157259 · Headquarters: ALTOONA, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Big Brothers Big Sisters of Broward Inc

    EIN 591507595 · Headquarters: FORT LAUDERDALE, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Big Brothers Big Sisters of Bucks County Inc

    EIN 232461056 · Headquarters: JAMISON, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Big Brothers Big Sisters of Butler County Inc

    EIN 310846147 · Headquarters: HAMILTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  7. Big Brothers Big Sisters of Cedar Rapids & East Central Iowa

    EIN 421170475 · Headquarters: CEDAR RAPIDS, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Big Brothers Big Sisters of Central California

    EIN 941668376 · Headquarters: FRESNO, CA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  9. Big Brothers Big Sisters of Central Florida Inc

    EIN 596555007 · Headquarters: ORLANDO, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Big Brothers Big Sisters of Central Iowa

    EIN 421184999 · Headquarters: DES MOINES, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  11. Big Brothers Big Sisters of Central Mn

    EIN 410972056 · Headquarters: ST CLOUD, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  12. Big Brothers Big Sisters of Central Montana

    EIN 237138696 · Headquarters: HELENA, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Big Brothers Big Sisters of Central New Mexico Inc

    EIN 850271207 · Headquarters: ALBUQUERQUE, NM, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Big Brothers Big Sisters of Central Ohio Inc

    EIN 314379429 · Headquarters: COLUMBUS, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Big Brothers Big Sisters of Central Texas Inc

    EIN 741678586 · Headquarters: AUSTIN, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Big Brothers Big Sisters of Central Va

    EIN 540908680 · Headquarters: LYNCHBURG, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Big Brothers Big Sisters of Central Wisconsin Inc

    EIN 237311362 · Headquarters: Stevens Point, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Big Brothers Big Sisters of Clarksville

    EIN 510164560 · Headquarters: CLARKSVILLE, TN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Big Brothers Big Sisters of Coastal & Northern New Jersey Inc

    EIN 222115416 · Headquarters: ASBURY PARK, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Big Brothers Big Sisters of Cumberland & Salem Counties Inc

    EIN 222506724 · Headquarters: BRIDGETON, NJ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. Big Brothers Big Sisters of Danv

    EIN 540922903 · Headquarters: DANVILLE, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Big Brothers Big Sisters of Delaware Inc

    EIN 516018399 · Headquarters: WILMINGTON, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Big Brothers Big Sisters of East Central Ohio

    EIN 341544215 · Headquarters: NEW PHILADELPHIA, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Big Brothers Big Sisters of East Central Wisconsin

    EIN 396103907 · Headquarters: Neenah, WI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Big Brothers Big Sisters of Eastern Massachusetts Inc

    EIN 042074462 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Big Brothers Big Sisters of Eastern Missouri

    EIN 430669085 · Headquarters: SAINT LOUIS, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Big Brothers Big Sisters of El Paso Inc

    EIN 741970973 · Headquarters: EL PASO, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Big Brothers Big Sisters of Elkhart County Inc

    EIN 351272588 · Headquarters: SOUTH BEND, IN, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  29. Big Brothers Big Sisters of Finney and Kearny Counties Inc

    EIN 481007859 · Headquarters: Garden City, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Big Brothers Big Sisters of Flagstaff

    EIN 237170086 · Headquarters: FLAGSTAFF, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Big Brothers Big Sisters of Fond Du Lac County Inc

    EIN 391330971 · Headquarters: FOND DU LAC, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Big Brothers Big Sisters of Franklin County Inc

    EIN 042491950 · Headquarters: GREENFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  33. Big Brothers Big Sisters of Greater Birmingham Inc

    EIN 630647080 · Headquarters: Birmingham, AL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Big Brothers Big Sisters of Greater Cincinnati Inc

    EIN 310577668 · Headquarters: CINCINNATI, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  35. Big Brothers Big Sisters of Greater Dayton Foundation Inc

    EIN 311010180 · Headquarters: DAYTON, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Big Brothers Big Sisters of Greater Lafayette

    EIN 351157567 · Headquarters: Lafayette, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Big Brothers Big Sisters of Greater Pittsburgh

    EIN 251709163 · Headquarters: Pittsburgh, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Big Brothers Big Sisters of Greater Salt Lake Foundation

    EIN 870488391 · Headquarters: Salt Lake City, UT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Big Brothers Big Sisters of Green County Inc

    EIN 391514636 · Headquarters: MONROE, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  40. Big Brothers Big Sisters of Harrisonburg Rockingham County Inc

    EIN 510209104 · Headquarters: HARRISONBURG, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Big Brothers Big Sisters of Jackson County Inc

    EIN 382221204 · Headquarters: JACKSON, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Big Brothers Big Sisters of Kentuckiana Inc

    EIN 616057856 · Headquarters: LOUISVILLE, KY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Big Brothers Big Sisters of Licking & Perry Counties Inc

    EIN 310860010 · Headquarters: NEWARK, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Big Brothers Big Sisters of Long Island Facilities Management Corporation

    EIN 113267841 · Headquarters: ISLANDIA, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. Big Brothers Big Sisters of Long Island Inc

    EIN 112422452 · Headquarters: ISLANDIA, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. Big Brothers Big Sisters of Lubbock Inc

    EIN 237041917 · Headquarters: LUBBOCK, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. Big Brothers Big Sisters of Manitowoc County Inc

    EIN 391196384 · Headquarters: MANITOWOC, WI, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  48. Big Brothers Big Sisters of Marquette and Alger Counties Inc

    EIN 381966729 · Headquarters: Ishpeming, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Big Brothers Big Sisters of Metro Atlanta Inc

    EIN 580861895 · Headquarters: Atlanta, GA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Big Brothers Big Sisters of Metropolitan Detroit

    EIN 386112533 · Headquarters: DETROIT, MI, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  51. Big Brothers Big Sisters of Mid-Maine

    EIN 010384833 · Headquarters: Camden, ME, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  52. Big Brothers Big Sisters of New York City Inc

    EIN 135600383 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Big Brothers Big Sisters of Northcentral Wisconsin Inc

    EIN 391258616 · Headquarters: Wausau, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  54. Big Brothers Big Sisters of Northeast Florida Inc

    EIN 590683256 · Headquarters: Jacksonville, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Big Brothers Big Sisters of Northeast Indiana Inc

    EIN 351271943 · Headquarters: FORT WAYNE, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Big Brothers Big Sisters of Northeast Wisconsin Inc

    EIN 391274696 · Headquarters: GREEN BAY, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. Big Brothers Big Sisters of Northwe

    EIN 237043163 · Headquarters: TRAVERSE CITY, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Big Brothers Big Sisters of Northwest Florida Inc

    EIN 592996893 · Headquarters: PENSACOLA, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Big Brothers Big Sisters of Northwest Georgia Mtns

    EIN 581079202 · Headquarters: Dalton, GA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  60. Big Brothers Big Sisters Of NORTHWEST Montana

    EIN 810374742 · Headquarters: Kalispell, MT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Big Brothers Big Sisters of Northwest Wyoming Inc

    EIN 830293830 · Headquarters: WORLAND, WY, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  62. Big Brothers Big Sisters of Northwestern Ohio

    EIN 341396251 · Headquarters: TOLEDO, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Big Brothers Big Sisters of Northwestern Wisconsin Inc

    EIN 237311200 · Headquarters: Eau Claire, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Big Brothers Big Sisters of Orange County and the Inland Empire Inc

    EIN 951992702 · Headquarters: SANTA ANA, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Big Brothers Big Sisters of Orange County Ny Inc

    EIN 141597893 · Headquarters: VAILS GATE, NY, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  66. Big Brothers Big Sisters of Ozaukee County Inc

    EIN 391229374 · Headquarters: GRAFTON, WI, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Big Brothers Big Sisters of Palm Beach & Martin Counties Inc

    EIN 592676889 · Headquarters: WEST PALM BEACH, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Big Brothers Big Sisters of Park and Sweet Grass Counties

    EIN 810363544 · Headquarters: LIVINGSTON, MT, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  69. Big Brothers Big Sisters of Puget Sound

    EIN 910673185 · Headquarters: BELLEVUE, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Big Brothers Big Sisters of Racine and Kenosha Counties Inc

    EIN 391052882 · Headquarters: KENOSHA, WI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  71. Big Brothers Big Sisters of Rhode Island Inc

    EIN 222606942 · Headquarters: PROVIDENCE, RI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Big Brothers Big Sisters of Salina Inc

    EIN 480999016 · Headquarters: SALINA, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Big Brothers Big Sisters of San Diego County Inc

    EIN 952151526 · Headquarters: SAN DIEGO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Big Brothers Big Sisters of San Luis Obispo County

    EIN 770348487 · Headquarters: SAN LUIS OBISPO, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  75. Big Brothers Big Sisters of Siouxland

    EIN 421121154 · Headquarters: SIOUX CITY, IA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  76. Big Brothers Big Sisters of South Central Indiana

    EIN 351330448 · Headquarters: BLOOMINGTON, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Big Brothers Big Sisters of South Central Wisconsin Inc

    EIN 391132693 · Headquarters: DELAVAN, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Big Brothers Big Sisters of South Texas Inc

    EIN 741897630 · Headquarters: SAN ANTONIO, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  79. Big Brothers Big Sisters of Southeastern Ohio

    EIN 310803659 · Headquarters: LANCASTER, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Big Brothers Big Sisters of Southern Arizona Incorporated

    EIN 860188050 · Headquarters: TUCSON, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Big Brothers Big Sisters of Southern ME

    EIN 010475146 · Headquarters: Westbrook, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Big Brothers Big Sisters of Southern Nevada

    EIN 510136847 · Headquarters: Las Vegas, NV, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Big Brothers Big Sisters of Southwest Colorado Inc

    EIN 742333611 · Headquarters: DURANGO, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Big Brothers Big Sisters of Southwest Michigan

    EIN 381720832 · Headquarters: KALAMAZOO, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Big Brothers Big Sisters of Southwest Washington

    EIN 911225443 · Headquarters: OLYMPIA, WA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  86. Big Brothers Big Sisters of Southwestern Illinois

    EIN 371095468 · Headquarters: BELLEVILLE, IL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. Big Brothers Big Sisters of Southwestern Indiana

    EIN 351305578 · Headquarters: EVANSVILLE, IN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. Big Brothers Big Sisters of St Lucie Indian River and Okeechobee Counties I

    EIN 592455513 · Headquarters: FORT PIERCE, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Big Brothers Big Sisters of Summit Medina and Stark Counties Inc

    EIN 341104356 · Headquarters: Akron, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Big Brothers Big Sisters of Sw Id Inc

    EIN 820349401 · Headquarters: BOISE, ID, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Big Brothers Big Sisters of SWLA Inc

    EIN 721009565 · Headquarters: Lake Charles, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Big Brothers Big Sisters of Tampa Bay Inc

    EIN 592173085 · Headquarters: Clearwater, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Big Brothers Big Sisters of the Bay Area

    EIN 237108045 · Headquarters: Oakland, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  94. Big Brothers Big Sisters of the Bay Area

    EIN 382314210 · Headquarters: ESCANABA, MI, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  95. Big Brothers Big Sisters of the Big Bend Inc

    EIN 592130789 · Headquarters: TALLAHASSEE, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Big Brothers Big Sisters of the Bluegrass Inc

    EIN 610523288 · Headquarters: LEXINGTON, KY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  97. Big Brothers Big Sisters of the Capital

    EIN 146035512 · Headquarters: ALBANY, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Big Brothers Big Sisters of the Capital Region

    EIN 232260248 · Headquarters: HARRISBURG, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Big Brothers Big Sisters of the Great Lakes Bay Region

    EIN 381553323 · Headquarters: Midland, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Big Brothers Big Sisters of the Greater Sacramento Area Inc

    EIN 941559853 · Headquarters: SACRAMENTO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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