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. Castleschouldt Pto

    EIN 422939452 · Headquarters: CONROE, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Castleton Blue Line Clubinc

    EIN 274515249 · Headquarters: Rutland, VT, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  3. Castleton Cemetery Association

    EIN 140552942 · Headquarters: NASSAU, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. Castleton Ranch Horse Rescue Inc

    EIN 113731839 · Headquarters: VALLEY CENTER, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Castleview Elementary Pto Inc

    EIN 834033623 · Headquarters: Orlando, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Castlewood Baseball

    EIN 272498475 · Headquarters: Slippery Rock, PA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  7. Castlewood Chamber Singers Inc

    EIN 311180373 · Headquarters: Indianapolis, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Castlewood Foundation Inc

    EIN 363309592 · Headquarters: CHICAGO, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Castlewood II Corporation

    EIN 581735477 · Headquarters: Duluth, GA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  10. Castlewood Rod and Gun Club

    EIN 251584710 · Headquarters: New Castle, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. Castlewood Youth Shooting Club

    EIN 471063458 · Headquarters: Ellwood City, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Castlewood-oak Valley Neighborhood Association

    EIN 742455167 · Headquarters: Austin, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Castlo Community Fund Inc

    EIN 372169438 · Headquarters: STRUTHERS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  14. Castlo Community Improvement Corpor

    EIN 341250342 · Headquarters: STRUTHERS, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  15. Castro Colonies Heritage Association

    EIN 741854158 · Headquarters: Castroville, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  16. Castro County Crime Line Inc

    EIN 751840489 · Headquarters: Dimmitt, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Castro County Gun Club

    EIN 843921556 · Headquarters: NAZARETH, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Castro County Historical Museum Inc

    EIN 751633441 · Headquarters: Dimmitt, TX, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  19. Castro Valley Arts Foundation

    EIN 810654619 · Headquarters: CASTRO VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Castro Valley Chamber of Commerce Inc

    EIN 941321044 · Headquarters: CASTRO VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. Castro Valley City

    EIN 932945664 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Castro Valley Educational Foundation

    EIN 942797523 · Headquarters: CASTRO VALLEY, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Castro Valley Girls Softball League

    EIN 942745176 · Headquarters: Castro Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  24. Castro Valley Lacrosse Club

    EIN 833228667 · Headquarters: Pleasanton, CA, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  25. Castro Valley Parent Nursery School

    EIN 237400265 · Headquarters: Castro Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  26. Castro Valley Post No 649 the American Legion Department Of

    EIN 946101583 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Castro Valley Schools Administrator Association

    EIN 873055479 · Headquarters: Castro Valley, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Castro Valley Soccer Club

    EIN 942923294 · Headquarters: Castro Valley, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  29. Castro Valley Teachers Association

    EIN 942382424 · Headquarters: SAN LEANDRO, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  30. Castroville Area Chamber of Commerce Inc

    EIN 742288126 · Headquarters: Castroville, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Casual Business Group

    EIN 472945214 · Headquarters: Acushnet, MA, US · Unknown & Unclassified · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  32. Casualty Actuarial Society

    EIN 136113674 · Headquarters: ARLINGTON, VA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  33. Casualty Actuarial Society Trust

    EIN 132967185 · Headquarters: ARLINGTON, VA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  34. Casualty Actuaries of Greater New York

    EIN 521944231 · Headquarters: New York, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. Casualty Actuaries of the Desert States

    EIN 900755032 · Headquarters: Gilbert, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Casualty Actuariesof the Mid Atantic Region

    EIN 232044120 · Headquarters: Fort Washington, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  37. Casualty Assistance Call Officer (Caco) Recourses Inc

    EIN 863728860 · Headquarters: GRANT, AL, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  38. Casuarina Womens Club

    EIN 263437618 · Headquarters: LANTANA, FL, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  39. Caswell Cemetery

    EIN 471585296 · Headquarters: Magnolia, KY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Caswell Council for the Arts & History Inc

    EIN 581334781 · Headquarters: Yanceyville, NC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  41. Caswell County Association of Educators

    EIN 273686801 · Headquarters: Alton, VA, US · Unknown & Unclassified · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  42. Caswell County Chamber of Commerce

    EIN 581469632 · Headquarters: YANCEYVILLE, NC, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  43. Caswell County Farm Bureau Inc

    EIN 560711350 · Headquarters: YANCEYVILLE, NC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  44. Caswell County Tourism Development Authority

    EIN 931717474 · Headquarters: Yanceyville, NC, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  45. Caswell Cove Marina Association Inc

    EIN 061396636 · Headquarters: MILFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Caswell Educational Association

    EIN 010476705 · Headquarters: Caribou, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Caswell for Kids Inc

    EIN 874752025 · Headquarters: Fairport, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  48. Caswell Silver Foundation

    EIN 850283465 · Headquarters: ALBUQUERQUE, NM, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  49. Casy Club 5816

    EIN 237094202 · Headquarters: LYNNWOOD, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  50. Cat & Release of Palm Beach County Inc

    EIN 392380892 · Headquarters: West Palm Beach, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Cat Angel Tender Sanctuary

    EIN 472649724 · Headquarters: Tampa, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Cat Care and Rescue Inc

    EIN 852458666 · Headquarters: Chicago, IL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Cat Club of the Palm Beaches Inc

    EIN 650475016 · Headquarters: DELRAY BEACH, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Cat Creek Coalition

    EIN 262566877 · Headquarters: Proctorville, OH, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  55. Cat Daddy's Private Club

    EIN 991512430 · Headquarters: EDGEWOOD, TX, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Cat Fanciers Federation Inc

    EIN 050347664 · Headquarters: Woburn, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Cat Flowers

    EIN 571085132 · Headquarters: ST GEORGE, SC, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  58. CAT Gould Foundation

    EIN 994803820 · Headquarters: Ogden, UT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  59. Cat Hill Sanctuary Inc

    EIN 815472759 · Headquarters: Frederick, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Cat Sanctuary of Central Oregon

    EIN 471954082 · Headquarters: Redmond, OR, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  61. Cat Scratch Fever Tnr and Rescue

    EIN 994476475 · Headquarters: LEXINGTON, SC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Cat Tales Rescue

    EIN 471250191 · Headquarters: Mill Creek, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  63. Cat Wranglers and Goat Getters 4-H Club

    EIN 934227480 · Headquarters: Asotin, WA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Cat Writers Association Inc

    EIN 752536031 · Headquarters: JACKSONVILLE, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Cat-baret Corp

    EIN 844263854 · Headquarters: Philadelphia, PA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  66. CATA - The Farmworker Support Committee

    EIN 222588350 · Headquarters: Glassboro, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Catacosm Communities Corporation

    EIN 991252444 · Headquarters: Ladera Ranch, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Catacumba

    EIN 471664270 · Headquarters: PHILADELPHIA, PA, USA · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-EZ

  69. Catahoula Association of Retarded Citizens Inc

    EIN 720914730 · Headquarters: JONESVILLE, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Catahoula Council on Aging Inc

    EIN 720694006 · Headquarters: JONESVILLE, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Catahoula Hunting Club Inc

    EIN 721254879 · Headquarters: CECILIA, LA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Catahoula Parish Farm Bureau Inc

    EIN 720668801 · Headquarters: BATON ROUGE, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  73. Catalan National Assembly in the United States of America Associati

    EIN 850655334 · Headquarters: Norman, OK, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  74. Catalina 22 National Sailing Association Inc

    EIN 742138778 · Headquarters: Cumming, GA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  75. Catalina 25 National Association

    EIN 421244645 · Headquarters: Davis, CA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Catalina 310 International Association

    EIN 113621192 · Headquarters: Atlantic Highlands, NJ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Catalina 36-Fleet 5

    EIN 264423412 · Headquarters: FAIRFIELD, CT, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  78. Catalina Club Inc

    EIN 351001768 · Headquarters: MUNCIE, IN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Catalina Conclave 1 Order of True Kindred

    EIN 510597922 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  80. Catalina Council Boy Scouts of America

    EIN 860107516 · Headquarters: TUCSON, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Catalina Council Bsa Trust

    EIN 814698773 · Headquarters: TUCSON, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Catalina Cove Inc

    EIN 831194409 · Headquarters: Cooper City, FL, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  83. Catalina Foothills Association Inc

    EIN 860344271 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Catalina Foothills School District Foundation

    EIN 942916325 · Headquarters: TUCSON, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Catalina Foundation Inc

    EIN 473985549 · Headquarters: Loretto, MN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  86. Catalina Island Chamber of Commerce and Visitors Bureau

    EIN 951550614 · Headquarters: AVALON, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Catalina Island Conservancy

    EIN 237228407 · Headquarters: Long Beach, CA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  88. Catalina Island Humane Society Inc

    EIN 237419988 · Headquarters: AVALON, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Catalina Island Museum

    EIN 951880698 · Headquarters: Avalon, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Catalina Island Saddle Club

    EIN 911889915 · Headquarters: AVALON, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Catalina Radio Control Modelers Inc

    EIN 262802338 · Headquarters: tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Catalina Rotary Club Inc Tucson Az

    EIN 866053207 · Headquarters: TUCSON, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Catalina Rotary Foundation Inc

    EIN 860214607 · Headquarters: TUCSON, AZ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Catalina Square Improvement Committee Inc

    EIN 741623380 · Headquarters: Alief, TX, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  95. Catalina Vista Neighborhood Association Inc

    EIN 860608271 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  96. Catalli Family Charitable Trust Agreement Dtd 21624

    EIN 991562271 · Headquarters: Naples, FL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  97. Catalonia Inc

    EIN 943182019 · Headquarters: HAYWARD, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Catalpa Club

    EIN 380406218 · Headquarters: FERNDALE, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Catalysis Club of Philadelphia

    EIN 010571260 · Headquarters: Newark, DE, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Catalyst

    EIN 131992402 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

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