Unknown & Unclassified nonprofits in Massachusetts

Unknown & Unclassified nonprofits in Massachusetts. Browse 12,299 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. Pride of Boston Cemetery Association

    EIN 042139264 · Headquarters: NEEDHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  2. Prides Beach Association Inc

    EIN 046050214 · Headquarters: PRIDES CROSSING, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  3. Primary Source Inc

    EIN 042911053 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. Prince Hall Grand Chapter Order of the Eastern Star Jurisdiction of Mass Inc

    EIN 043165733 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. Prince Henry Society of Massachusetts Group Filing

    EIN 900079877 · Headquarters: NORTH DARTMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  6. Prince Henry Society of Massachusetts Inc

    EIN 042718774 · Headquarters: FALL RIVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  7. Princeton Firefighters Association

    EIN 042774016 · Headquarters: Princeton, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  8. Princeton Historical Society Inc

    EIN 042522822 · Headquarters: Princeton, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Princeton Land Trust

    EIN 223078767 · Headquarters: PRINCETON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  10. Princetonen of Boston Inc

    EIN 204581589 · Headquarters: Watertown, MA, US · Unknown & Unclassified · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  11. Privacy Rights Institute Inc

    EIN 881674489 · Headquarters: Beverly, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Privitere Family Charitable Foundation

    EIN 043493854 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  13. Pro Arte Chamber Orchestra of Boston Inc

    EIN 042688092 · Headquarters: NEWTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  14. Pro Life Legal Defense Fund Inc

    EIN 042600429 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  15. Proadams Inc

    EIN 461034522 · Headquarters: Adams, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Professional Burleesque Society

    EIN 205910706 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  17. Professional Chapter at Faulkner Hospital

    EIN 364638001 · Headquarters: CANTON, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  18. Professional Convention Management Assoc New England Chapter Inc

    EIN 522447533 · Headquarters: BELMONT, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  19. Professional Fire Fighters of Massachusetts

    EIN 046143931 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Professional Firefighters of Franklin Local 2637

    EIN 042822083 · Headquarters: Franklin, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Professional Firefighters of Hanover

    EIN 042698792 · Headquarters: HANOVER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  22. Professional Liability Foundation Ltd

    EIN 043267680 · Headquarters: WALTHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  23. Professional Nurse Collective Bargaining Unit of Heywood Hospita

    EIN 364652596 · Headquarters: WESTMINSTER, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  24. Professional Photographers Association of Massachusetts Inc

    EIN 222514992 · Headquarters: WORCESTER, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Professional Remodeling Organization New England Inc

    EIN 043088255 · Headquarters: NEWTON CENTRE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Professional Skaters Foundation

    EIN 411835343 · Headquarters: PEMBROKE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Programs for People Inc

    EIN 042609789 · Headquarters: FRAMINGHAM, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  28. Project 10-33 Corp

    EIN 423751794 · Headquarters: Lexington, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Project Adventure Inc

    EIN 042749823 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Project Blueberry Fund Inc

    EIN 042717401 · Headquarters: WEST YARMOUTH, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  31. Project Contemporary Competitivenes

    EIN 042473505 · Headquarters: MIDDLEBORO, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. Project Infosec

    EIN 811229045 · Headquarters: Haverhill, MA, US · Unknown & Unclassified · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  33. Project Management Institute

    EIN 050529824 · Headquarters: Westborough, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. Project Place Gatehouse Inc

    EIN 342026629 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Project Reminiscence

    EIN 991149298 · Headquarters: Needham, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  36. Project Save Armenian Photograph Archives Inc

    EIN 222661086 · Headquarters: WATERTOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  37. Project Trinite

    EIN 933674252 · Headquarters: PLYMOUTH, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Prometheus Dance Inc

    EIN 223002275 · Headquarters: Framingham, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  39. Prone Family Foundation Inc

    EIN 274407525 · Headquarters: STOUGHTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2016 · Primary form: IRS Form 990-PF

  40. Property Insurance Plans Service Office Inc

    EIN 043253510 · Headquarters: Boston, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Proprietors of Cedar Grove Cemetery

    EIN 041160730 · Headquarters: DORCHESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Proprietors of Elmwood Cemetery

    EIN 041286090 · Headquarters: BRADFORD, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  43. Proprietors of Mount Auburn Cemetery

    EIN 041641320 · Headquarters: CAMBRIDGE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Proprietors of Pinehill Cemetery Proprietors of Pine Hill Cemetery

    EIN 237057581 · Headquarters: WEST BRIDGEWATER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Proprietors of the Lowell Cemetery

    EIN 041557870 · Headquarters: LOWELL, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990

  46. Proprietors of the Oak Hill Cemetery

    EIN 041745686 · Headquarters: Newburyport, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Proprietors of the Pittsfield Cemetery

    EIN 041731188 · Headquarters: PITTSFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Proprietors of the Rural Cemetery in Worcester

    EIN 041795920 · Headquarters: WORCESTER, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Proprietors of the Social Law Library

    EIN 042104850 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2023 · Primary form: IRS Form 990

  50. Prospect Hill Associates Inc

    EIN 901138852 · Headquarters: CHILMARK, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Prospect Hill Cemetery Association

    EIN 042005093 · Headquarters: WHITINSVILLE, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Prospect Hill Cemetery Association Inc

    EIN 042001200 · Headquarters: NANTUCKET, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Prospectors Ski Club Inc

    EIN 042266947 · Headquarters: Woodville, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  54. Prosperity Blueprint Forum Inc

    EIN 990697004 · Headquarters: BEVERLY, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  55. Prosperity for Everyday People Inc

    EIN 474078982 · Headquarters: BOSTON, MA, USA · Unknown & Unclassified · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  56. Prosperity Pioneers Inc

    EIN 933432311 · Headquarters: Woburn, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Protection Fire Co No 1

    EIN 046140554 · Headquarters: BYFIELD, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Protestant Episcopal Church in the United States of America

    EIN 311629166 · Headquarters: South Yarmouth, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-T

  59. Province Alpha of Sigma Alpha Epsilon

    EIN 020474103 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  60. Provincetown Chamber of Commerce Inc

    EIN 042083275 · Headquarters: PROVINCETOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Provincetown Community Compact Inc

    EIN 043208909 · Headquarters: PROVINCETOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  62. Provincetown Firemen's Association Inc

    EIN 222579510 · Headquarters: PROVINCETOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  63. Provincetown Helping Hand Society

    EIN 046049984 · Headquarters: Provincetown, MA, US · Unknown & Unclassified · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  64. Provincetown Historical Celebrationsinc

    EIN 043160328 · Headquarters: PROVINCETOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Provincetown Jazz Festival Inc

    EIN 271399574 · Headquarters: Orleans, MA, USA · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  66. Provincetown PTA

    EIN 043025560 · Headquarters: Provincetown, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Provincetown Saint Peters Club Inc

    EIN 452284698 · Headquarters: PROVINCETOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Provincetown Tennis Club Inc

    EIN 042132800 · Headquarters: PROVINCETOWN, MA, USA · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. PRSA Greater Worcester Chapter

    EIN 934127397 · Headquarters: WORCESTER, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Psi Chi the International Honor Society in Psychology

    EIN 043145735 · Headquarters: WALTHAM, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Psi Chi the International Honor Society in Psychology

    EIN 043237957 · Headquarters: NORTH DARTMOUTH, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Psi Chi the International Honor Society in Psychology

    EIN 043277128 · Headquarters: Wellesley, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Psi Chi the International Honor Society in Psychology

    EIN 043515193 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Psi Chi the International Honor Society in Psychology

    EIN 237123824 · Headquarters: Medford, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  75. Psi Chi the International Honor Society in Psychology

    EIN 510232830 · Headquarters: BOSTON, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  76. Psi Chi the International Honor Society in Psychology

    EIN 510241421 · Headquarters: AMHERST, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Psi Chi the International Honor Society in Psychology

    EIN 510255035 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Psi Chi the International Honor Society in Psychology

    EIN 510481652 · Headquarters: North Adams, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  79. Psi Chi the International Honor Society in Psychology

    EIN 521539091 · Headquarters: Bridgewater, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Psi Chi the National Honor Society in Psychology

    EIN 043277129 · Headquarters: CHESTNUT HILL, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Psi Chi the National Honor Society in Psychology

    EIN 043369110 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Psi Chi the National Honor Society in Psychology

    EIN 043420506 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Psi Chi the National Honor Society in Psychology

    EIN 046136795 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Psi Chi the National Honor Society in Psychology

    EIN 046136796 · Headquarters: Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. Psi Chi the National Honor Society in Psychology

    EIN 237212235 · Headquarters: Weston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Psi Chi the National Honor Society in Psychology

    EIN 237429777 · Headquarters: Springfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  87. Psi Chi the National Honor Society in Psychology

    EIN 333533658 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  88. Psi Chi the National Honor Society in Psychology

    EIN 473466121 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Psi Chi the National Honor Society in Psychology

    EIN 510202403 · Headquarters: Northampton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Psi Chi the National Honor Society in Psychology

    EIN 510219056 · Headquarters: Westfield, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  91. Psi Chi the National Honor Society in Psychology

    EIN 510255038 · Headquarters: South Hadley, MA, US · Unknown & Unclassified · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  92. Psi Chi the National Honor Society in Psychology

    EIN 510577138 · Headquarters: Beverly, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Psi Chi the National Honor Society in Psychology

    EIN 521236526 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Psi Chi the National Honor Society in Psychology

    EIN 521538348 · Headquarters: Fitchburg, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  95. Psi Chi the National Honor Society in Psychology

    EIN 521538350 · Headquarters: Worcester, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Psi Chi the National Honor Society in Psychology

    EIN 521538352 · Headquarters: Boston, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Psi Chi the National Honor Society in Psychology

    EIN 521538353 · Headquarters: North Andover, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  98. Psi Chi the National Honor Society in Psychology

    EIN 521538354 · Headquarters: North Easton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Psi Chi the National Honor Society in Psychology

    EIN 521539080 · Headquarters: Norton, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Psi Chi the National Honor Society in Psychology

    EIN 582040052 · Headquarters: Quincy, MA, US · Unknown & Unclassified · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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