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. Windham Regional Community Council Inc

    EIN 060990205 · Headquarters: WILLIMANTIC, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Windham Senior Center Inc

    EIN 020446667 · Headquarters: Windham, NH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Windham Southeast Education Association

    EIN 222487924 · Headquarters: Brattleboro, VT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  4. Windham Southwest Supervisory Union Staff Association

    EIN 331191133 · Headquarters: WHITINGHAM, VT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  5. Windham Teachers Association

    EIN 341387523 · Headquarters: Windham, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Windham Tee-Ball

    EIN 371782516 · Headquarters: Ashland, NY, US · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  7. Windham Veterans Association Inc

    EIN 010478751 · Headquarters: Windham, ME, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Windham Youth Organization Inc

    EIN 010600102 · Headquarters: WINDHAM, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Windhorse Foundation

    EIN 046707664 · Headquarters: PAIA, HI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  10. Windhover Foundation Inc

    EIN 042708940 · Headquarters: ROCKPORT, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  11. Windhover Foundation Inc

    EIN 391482470 · Headquarters: Wilmington, DE, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  12. Winding Brook School Corp

    EIN 222125826 · Headquarters: TINTON FALLS, NJ, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  13. Winding Path Initiative Inc

    EIN 825524346 · Headquarters: Ridgeland, MS, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Winding River Boat Club

    EIN 834063798 · Headquarters: Bolivia, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Winding River Grove Sportsmans Club Inc

    EIN 010742315 · Headquarters: Susquehanna, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Winding Rose Foundation

    EIN 465048570 · Headquarters: NEW YORK, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  17. Winding Springs Elementary

    EIN 934408336 · Headquarters: Charlotte, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Winding Trail Garden Club

    EIN 271061599 · Headquarters: Middleport, OH, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  19. Winding Trails Inc

    EIN 060670252 · Headquarters: FARMINGTON, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Winding Trails Subdivision Homeowners Association

    EIN 431798660 · Headquarters: WILDWOOD, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  21. Winding Vista Swim and Tennis Club

    EIN 580975599 · Headquarters: Tucker, GA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  22. Windjammer Homeowners Association Inc

    EIN 581913583 · Headquarters: Naples, FL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  23. Windjammers Sailing Club Inc

    EIN 237003830 · Headquarters: SUAMICO, WI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Windmill Club Inc

    EIN 131800645 · Headquarters: Armonk, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  25. Windmill Foundation Inc C/o Pkf O'connor Davies Llp

    EIN 133411161 · Headquarters: STAMFORD, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  26. Windmill Orchard Neighborhood Association

    EIN 900419812 · Headquarters: Columbia, SC, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  27. Windmill Point Water Fund

    EIN 431451851 · Headquarters: MO, US · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  28. Windmill Village Club of Punta Gorda Inc

    EIN 237363942 · Headquarters: Punta Gorda, FL, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  29. Windmill Village Theater Group Inc

    EIN 331738330 · Headquarters: Davenport, FL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Windmill Winnies

    EIN 141735467 · Headquarters: Pittsfield, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  31. Windom Area Chamber of Commerce

    EIN 410759873 · Headquarters: WINDOM, MN, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  32. Windom Area Health Auxiliary

    EIN 411263290 · Headquarters: WINDOM, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Windom Cemetery Association

    EIN 410625977 · Headquarters: Windom, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Windom Community Garden

    EIN 922098010 · Headquarters: Minneapolis, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Windom Country Club

    EIN 410673616 · Headquarters: Windom, MN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Windom Firemens Relief Association

    EIN 416029415 · Headquarters: WINDOM, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Windom Fund

    EIN 521214397 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  38. Windom Park Citizens in Action

    EIN 411717051 · Headquarters: Minneapolis, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  39. Windom Saddle Club

    EIN 471415950 · Headquarters: Windom, MN, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  40. Windom Youth Hockey Association Inc

    EIN 411290460 · Headquarters: WINDOM, MN, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Windover Farms Property Owners Association Inc

    EIN 561960190 · Headquarters: Brevard, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Window & Door Manufacturers Association

    EIN 361522410 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Window & Plate Glass Dealers Assoc Industry Promotion Fund

    EIN 133084705 · Headquarters: NANUET, NY, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Window Cleaning & Building Service Found

    EIN 256033918 · Headquarters: VERO BEACH, FL, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  45. Window Covering Manufacturers Association Inc

    EIN 222293809 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  46. Window Covering Safety Council Inc

    EIN 223321197 · Headquarters: WASHINGTON, DC, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Windows of Heaven Foundation

    EIN 341590288 · Headquarters: HARTVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  48. Windows of Hope Houston

    EIN 453653427 · Headquarters: Houston, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Windridge Country Club Inc

    EIN 610529408 · Headquarters: Owensboro, KY, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  50. Windridge Equestrian 4-H Club

    EIN 364665752 · Headquarters: Pontiac, MI, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  51. Windriver Internal Martial Arts Association Inc

    EIN 262903320 · Headquarters: Tucson, AZ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Windrow Estates Home Owners

    EIN 561078831 · Headquarters: MATTHEWS, NC, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  53. Winds of Peace Foundation

    EIN 411343012 · Headquarters: HASTINGS, MN, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  54. Windsong Homeowners Organization

    EIN 630936673 · Headquarters: Trussville, AL, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  55. Windsor African Violet Society

    EIN 542192583 · Headquarters: Bloomfield, CT, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  56. Windsor Alumni Association

    EIN 800730608 · Headquarters: ROCKY RIVER, OH, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Windsor and Community Senior Inc

    EIN 311055017 · Headquarters: MARYSVILLE, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  58. Windsor Area Chamber of Commerce

    EIN 840452047 · Headquarters: Windsor, CO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. Windsor Arms Condo Association

    EIN 232612128 · Headquarters: Narberth, PA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  60. Windsor Bahamas Foundation

    EIN 994851223 · Headquarters: WINDERMERE, FL, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  61. Windsor Bertie County Chamber Of Commerce

    EIN 561062490 · Headquarters: Windsor, NC, USA · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  62. Windsor Cemetery Association

    EIN 231524375 · Headquarters: Windsor, PA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  63. Windsor Chamber of Commerce

    EIN 066180000 · Headquarters: WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Windsor Chamber of Commerce

    EIN 942814468 · Headquarters: WINDSOR, CA, USA · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990

  65. Windsor Charitable Foundation

    EIN 421227965 · Headquarters: DES MOINES, IA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  66. Windsor Charter School Bc

    EIN 834227778 · Headquarters: FORT COLLINS, CO, USA · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990

  67. Windsor Citizens for Sustainable Waste Management

    EIN 992680783 · Headquarters: Sacramento, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Windsor Climate Action Inc

    EIN 852074949 · Headquarters: Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Windsor Club

    EIN 720817889 · Headquarters: NEW ORLEANS, LA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Windsor Community Garden Club

    EIN 900982560 · Headquarters: DENVER, CO, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  71. Windsor County Board of Realtors Inc

    EIN 030262838 · Headquarters: Woodstock, VT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Windsor County Farm Bureau Association Inc

    EIN 030183526 · Headquarters: North Hartland, VT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Windsor Crest Club Inc

    EIN 237080894 · Headquarters: DAVENPORT, IA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  74. Windsor Cross Roads Ruritan Club

    EIN 911771573 · Headquarters: Hamptonville, NC, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Windsor Educational Association

    EIN 841106686 · Headquarters: Windsor, CO, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  76. Windsor Elementary School PTA

    EIN 521289303 · Headquarters: Windsor, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  77. Windsor Fair Attn Jeffrey Tracy Treasurer

    EIN 010223898 · Headquarters: READFIELD, ME, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Windsor Fish & Game Association

    EIN 232137937 · Headquarters: WINDSOR, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Windsor Food and Fuel Bank Inc

    EIN 060960898 · Headquarters: Windsor, CT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  80. Windsor Forest Association

    EIN 521128670 · Headquarters: Williamsburg, VA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  81. Windsor Four County Rural Fire Organization Inc

    EIN 431519109 · Headquarters: Windsor, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Windsor Garden Club

    EIN 352824851 · Headquarters: Windsor, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Windsor Gardens Bldg 40 Fund

    EIN 814464094 · Headquarters: Denver, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Windsor Great Park Recreation Association Inc

    EIN 540831508 · Headquarters: Newport News, VA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Windsor Harvest Festival Planners

    EIN 201920855 · Headquarters: WINDSOR, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  86. Windsor Heights Volunteer Fire Dept

    EIN 556021657 · Headquarters: WINDSOR HEIGHTS, WV, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Windsor Hgts Neighborhood Watch

    EIN 263088893 · Headquarters: Windsor Heights, IA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  88. Windsor High School Alumni Association

    EIN 273503835 · Headquarters: WINDSOR, VT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  89. Windsor High School Alumni Scholars

    EIN 066026061 · Headquarters: West Hartford, CT, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  90. Windsor High School Master Scholars Endowment Fund Inc

    EIN 431414822 · Headquarters: WINDSOR, MO, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Windsor Hills Community Association

    EIN 901118420 · Headquarters: Los Angeles, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. Windsor Hills Community Association

    EIN 943435206 · Headquarters: Wilmington, DE, US · Unknown & Unclassified · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  93. Windsor Hills Neigborhood Association

    EIN 731311412 · Headquarters: Oklahoma City, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Windsor Independent Living Association Inc

    EIN 510201148 · Headquarters: WINDSOR, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  95. Windsor Lake Rod & Gun Club

    EIN 436051767 · Headquarters: Pevely, MO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. Windsor Lakes Homeowners Association

    EIN 201186985 · Headquarters: Conroe, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Windsor Library Association Inc

    EIN 066026062 · Headquarters: Windsor, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Windsor Lions Charities Inc

    EIN 223078161 · Headquarters: Windsor, NY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Windsor Locks Public Library Inc

    EIN 060714787 · Headquarters: Windsor Locks, CT, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. Windsor Lodge No 215

    EIN 941084215 · Headquarters: Windsor, CA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

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