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. Mason Historical Society Inc

    EIN 311046003 · Headquarters: MASON, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Mason Hospital Auxiliary

    EIN 376040353 · Headquarters: Havana, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. Mason L Dean Testamentary Trust

    EIN 436069953 · Headquarters: DALLAS, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  4. Mason Lane Water Users Association

    EIN 860402454 · Headquarters: CORNVILLE, AZ, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Mason Lodge 0322-Ben Hur

    EIN 237529427 · Headquarters: Kansas City, KS, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  6. Mason M for Ally Gen Hosp 17

    EIN 256018604 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  7. Mason M for Chatham College

    EIN 256018833 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  8. Mason M Roberts Foundation

    EIN 316024937 · Headquarters: CASTLE ROCK, CO, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  9. Mason Martha Annuity Mf

    EIN 256020715 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  10. Mason Martha Decd Mutual Funds

    EIN 256021122 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  11. Mason Martha Fbo Wpahs Mutual

    EIN 256020717 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  12. Mason Martha Lockhart

    EIN 256018595 · Headquarters: PITTSBURGH, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  13. Mason Masonic Temple Association Inc

    EIN 237092793 · Headquarters: MASON, OH, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  14. Mason Moment Makers - an Employee Activities & Engagement Committee

    EIN 331313398 · Headquarters: Shelton, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Mason Oceana Manistee Board of Realtors

    EIN 386089973 · Headquarters: LUDINGTON, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  16. Mason Park West Owners Assn Inc

    EIN 475247392 · Headquarters: Houston, TX, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  17. Mason Public Schools Foundation

    EIN 382598007 · Headquarters: MASON, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  18. Mason S Helping Paw Inc

    EIN 853446450 · Headquarters: JACKSON HEIGHTS, NY, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  19. Mason SAY Soccer

    EIN 311252038 · Headquarters: Mason, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  20. Mason Scholarship Foundation

    EIN 311255773 · Headquarters: Mason, OH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Mason Storm

    EIN 800671882 · Headquarters: Mason, OH, US · Unknown & Unclassified · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  22. Mason Strong Foundation Inc

    EIN 412506220 · Headquarters: MARLBORO, NJ, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Mason Trades Building Association Inc

    EIN 930525246 · Headquarters: Portland, OR, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  24. Mason Valley Chamber of Commerce Incorporated

    EIN 880194332 · Headquarters: YERINGTON, NV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Mason Valley Chapter No 2059 Women of the Moose

    EIN 364128134 · Headquarters: Mooseheart, IL, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  26. Mason Valley Lodge 2428 Loyal Order of Moose

    EIN 880326262 · Headquarters: YERINGTON, NV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Mason Volunteer Fire Department Incorporated

    EIN 550591010 · Headquarters: Mason, WV, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Mason Water Group

    EIN 394842778 · Headquarters: Belfair, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Mason Wood Improvement Assoc

    EIN 431193619 · Headquarters: Creve Coeur, MO, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  30. Mason Wright Foundation Inc

    EIN 042105936 · Headquarters: SPRINGFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  31. Mason Youth Football

    EIN 310925576 · Headquarters: MASON, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  32. Mason Youth Football League

    EIN 471097974 · Headquarters: HAZEL GREEN, AL, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  33. Mason Youth Organization

    EIN 311125199 · Headquarters: Mason, OH, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  34. Mason-dixon Business Association

    EIN 232768010 · Headquarters: DELTA, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Mason-dixon Chapter Bca

    EIN 264161133 · Headquarters: Chambersburg, PA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  36. Mason-dixon Collie Club Inc

    EIN 272537752 · Headquarters: Ijamsville, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Mason-dixon Community Services

    EIN 232333727 · Headquarters: DELTA, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Mason-dixon Council Inc Boy Scouts of America

    EIN 520591680 · Headquarters: HAGERSTOWN, MD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  39. Mason-dixon German Shorthaired Pointer Club Inc

    EIN 237362677 · Headquarters: Stewartstown, PA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Mason-dixon Lawnmower Racing Association

    EIN 455197969 · Headquarters: Laurel, MD, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Mason-dixon Public Library

    EIN 232321504 · Headquarters: STEWARTSTOWN, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Mason-dixon Trail System Inc

    EIN 232116461 · Headquarters: COLORA, MD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Mason-griffith Founders Chapter of Trout Unlimited

    EIN 237184531 · Headquarters: GRAYLING, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Masonic & Eastern Star Temple Zeigler IL

    EIN 270180330 · Headquarters: Zeigler, IL, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Masonic Ancients of Pennsylvania

    EIN 236431314 · Headquarters: Levittown, PA, US · Unknown & Unclassified · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  46. Masonic and Odd Fellows Cemetery

    EIN 370403022 · Headquarters: Benton, IL, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Masonic Angel Fondation Inc

    EIN 263360004 · Headquarters: Intervale, NH, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Masonic Angel Fondation Inc

    EIN 263846867 · Headquarters: GREENWOOD, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  49. Masonic Angel Fondation Inc

    EIN 264035470 · Headquarters: Cynthiana, IN, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  50. Masonic Angel Fondation Inc

    EIN 264392930 · Headquarters: WAUWATOSA, WI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Masonic Angel Fondation Inc

    EIN 364651257 · Headquarters: Caribou, ME, US · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  52. Masonic Association of Bellows Falls Vt

    EIN 223336256 · Headquarters: Bellows Falls, VT, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  53. Masonic Association of Caribou

    EIN 016014144 · Headquarters: Woodland, ME, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Masonic Association of Limestone

    EIN 473134162 · Headquarters: Caribou, ME, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  55. Masonic Association of Menominee

    EIN 380797905 · Headquarters: Menominee, MI, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. MASONIC ASSOCIATION OF NORTHVILLE of Wayne County Michigan

    EIN 382678970 · Headquarters: Northville, MI, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  57. Masonic Association of West Chester Pennsylvania

    EIN 232731631 · Headquarters: WEST CHESTER, PA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  58. Masonic Benefit Fund of Districts No 1a 1B 54 and 58

    EIN 541266330 · Headquarters: Burke, VA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  59. Masonic Bldg Assn of Traverse City

    EIN 381108553 · Headquarters: Traverse City, MI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  60. Masonic Bldg Co Inc

    EIN 556023804 · Headquarters: Evans, WV, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Masonic Bldg Corportion

    EIN 236298713 · Headquarters: EASTON, PA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  62. Masonic Board of Control

    EIN 411463421 · Headquarters: Pipestone, MN, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  63. Masonic Board of Managers

    EIN 480323243 · Headquarters: NEWTON, KS, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Masonic Bodies of Ludington

    EIN 380797910 · Headquarters: Ludington, MI, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  65. Masonic Brotherhood Riders of Delaware - Southern Chapter

    EIN 471198003 · Headquarters: LEWES, DE, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Masonic Building Assn

    EIN 030139880 · Headquarters: Barre, VT, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Masonic Building Assn an Uni

    EIN 460222452 · Headquarters: Pierre, SD, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  68. Masonic Building Assn of Greenville

    EIN 756036285 · Headquarters: Greenville, TX, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Masonic Building Assoc of Elsie

    EIN 386089974 · Headquarters: ELSIE, MI, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Masonic Building Association

    EIN 020164055 · Headquarters: NASHUA, NH, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Masonic Building Association

    EIN 237226148 · Headquarters: belleville, MI, US · Unknown & Unclassified · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  72. Masonic Building Association

    EIN 301344917 · Headquarters: Evanston, WY, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  73. Masonic Building Association

    EIN 830130820 · Headquarters: Douglas, WY, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Masonic Building Association

    EIN 850349294 · Headquarters: ROSWELL, NM, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Masonic Building Association

    EIN 930219964 · Headquarters: Albany, OR, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  76. Masonic Building Association Incorporated

    EIN 610485483 · Headquarters: Paducah, KY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Masonic Building Association of Bay City

    EIN 386092180 · Headquarters: Saginaw, MI, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  78. Masonic Building Association of Enfield

    EIN 066050529 · Headquarters: Suffield, CT, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Masonic Building Association of Englewood

    EIN 840469975 · Headquarters: Englewood, CO, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  80. Masonic Building Association of Enon Valley Pennsylvania

    EIN 251684750 · Headquarters: New Brighton, PA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  81. Masonic Building Association of Limon

    EIN 840260061 · Headquarters: Limon, CO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Masonic Building Association of Muskogee Oklahoma

    EIN 730342340 · Headquarters: Muskogee, OK, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Masonic Building Association of Sioux Falls

    EIN 460162183 · Headquarters: SIOUX FALLS, SD, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Masonic Building Association Van Nuys

    EIN 951620016 · Headquarters: Van Nuys, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Masonic Building Company

    EIN 610272100 · Headquarters: Ashland, KY, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  86. Masonic Building Company of Richmond

    EIN 882029792 · Headquarters: Richmond, IN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Masonic Building Coroporation an Arizona Corporation

    EIN 860692620 · Headquarters: DOUGLAS, AZ, USA · Unknown & Unclassified · Latest available filing year: 2021 · Primary form: IRS Form 990

  88. Masonic Building Corporation

    EIN 450162161 · Headquarters: GRAND FORKS, ND, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  89. Masonic Building Corporation of Pullman

    EIN 916054372 · Headquarters: Pullman, WA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Masonic Building Corporation of Woodstock Ct

    EIN 593792534 · Headquarters: Woodstock, CT, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Masonic Cancer Center Fund Inc

    EIN 410849479 · Headquarters: BLOOMINGTON, MN, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Masonic Cemetery and Charity Trust

    EIN 830231781 · Headquarters: LARAMIE, WY, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Masonic Cemetery Assn

    EIN 440524340 · Headquarters: California, MO, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  94. Masonic Cemetery Assn of Lead South Dakota

    EIN 460249498 · Headquarters: Led, SD, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Masonic Cemetery Association

    EIN 237419982 · Headquarters: FALLBROOK, CA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Masonic Cemetery Association Inc

    EIN 351925327 · Headquarters: Warren, IN, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Masonic Cemetery Association of Chappell Hill Texas

    EIN 741543194 · Headquarters: CHAPPELL HILL, TX, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Masonic Cemetery Associaton

    EIN 431170018 · Headquarters: Piedmont, MO, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. Masonic Center Association

    EIN 237200025 · Headquarters: Lead, SD, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  100. Masonic Center Association

    EIN 900636929 · Headquarters: DEADWOOD, SD, US · Unknown & Unclassified · Latest available filing year: 2011 · Primary form: IRS Form 990-N

First page and all pages