Social Science nonprofits

Social Science nonprofits. Browse 2,567 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. Onero Institute

    EIN 852980200 · Headquarters: EDMONDS, WA, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Onetorch

    EIN 205057800 · Headquarters: LAS VEGAS, NV, US · Social Science · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  3. Open Anthropology Foundation Ltd

    EIN 833837484 · Headquarters: Bloomington, IN, USA · Social Science · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  4. Open Forum Foundation

    EIN 264736025 · Headquarters: Ann Arbor, MI, US · Social Science · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  5. Open Science Initiative Inc

    EIN 271669116 · Headquarters: Santa Monica, CA, US · Social Science · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  6. Open to Debate Foundation

    EIN 271022579 · Headquarters: NEW YORK, NY, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  7. Openoversight Va

    EIN 931612195 · Headquarters: Richmond, VA, US · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  8. Operation New Path

    EIN 394953074 · Headquarters: ST CLOUD, MN, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Oppenheimer Institute for Science

    EIN 850472482 · Headquarters: ALBUQUERQUE, NM, USA · Social Science · Latest available filing year: 2012 · Primary form: IRS Form 990-PF

  10. Opt Citizen Science Foundation

    EIN 463114445 · Headquarters: Cadiff, CA, US · Social Science · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  11. Optimist Club Foundation of Olathe

    EIN 481021846 · Headquarters: Olathe, KS, USA · Social Science · Latest available filing year: 2009 · Primary form: IRS Form 990-EZ

  12. Oralora Fund Inc

    EIN 133338530 · Headquarters: Albuquerque, NM, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Orange County Student Law Review

    EIN 853132982 · Headquarters: IRVINE, CA, US · Social Science · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  14. Oregon Association for Behavior Analysis

    EIN 264350777 · Headquarters: Beaverton, OR, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Oregon Consumer Science Business Professionals

    EIN 931284334 · Headquarters: Wilsonville, OR, US · Social Science · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  16. Oregon Council on Economic Education

    EIN 930551148 · Headquarters: PORTLAND, OR, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Oregon Research Institute

    EIN 930495655 · Headquarters: SPRINGFIELD, OR, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Oregon Tax Research

    EIN 930241820 · Headquarters: Portland, OR, US · Social Science · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  19. Orez Anthropological Research Inc

    EIN 921333633 · Headquarters: Tamarac, FL, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Organization for Chemical Sciences in Development Inc

    EIN 222672853 · Headquarters: El Granada, CA, USA · Social Science · Latest available filing year: 2017 · Primary form: IRS Form 990-PF

  21. Organization for Lucid Dream Studies

    EIN 882738290 · Headquarters: Richmond, VA, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Organization for the Study of Comunication Language and Gender

    EIN 460483374 · Headquarters: CHICO, CA, US · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  23. Organization Investigate Persecution of Falungong

    EIN 823004277 · Headquarters: New York, NY, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Orionid Foundation Inc

    EIN 994714730 · Headquarters: Underhill Center, VT, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Osher Lifelong Learning Institute at George Mason University

    EIN 541583254 · Headquarters: FAIRFAX, VA, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Oslc Developments Inc

    EIN 260423551 · Headquarters: EUGENE, OR, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Other 98 Percent Action Inc

    EIN 043578179 · Headquarters: Seattle, WA, USA · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990

  28. Our Knowledge for Everyone

    EIN 883296049 · Headquarters: BEVERLY HILLS, CA, USA · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  29. Our Neighborhoods Capital Fund

    EIN 933532508 · Headquarters: Washington, DC, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  30. Out & Equal

    EIN 020681855 · Headquarters: OAKLAND, CA, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Outdoor Advertising Association of SC

    EIN 582313302 · Headquarters: Columbia, SC, USA · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  32. Ozark Ar

    EIN 710813249 · Headquarters: Fayetteville, AR, US · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  33. Ozark Arts and Sciences Conservatory Inc

    EIN 710822648 · Headquarters: ENOLA, AR, US · Social Science · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  34. Ozark Research Institute Inc

    EIN 710724293 · Headquarters: Greenland, AR, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  35. Ozarks Academy of Classical Arts and Sciences

    EIN 462633353 · Headquarters: Springfield, MO, US · Social Science · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  36. P O W E R Org Inc

    EIN 463172777 · Headquarters: Rego Park, NY, US · Social Science · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Pacific Atlantic Action Coalition

    EIN 830618466 · Headquarters: CHICAGO, IL, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  38. Pacific Behavior Center

    EIN 661075200 · Headquarters: Saipan, MP, CQ · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Pacific Coast Archaeological Society

    EIN 952685178 · Headquarters: Costa Mesa, CA, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Pacific Lumber Exporters Assoc

    EIN 931061619 · Headquarters: Portland, OR, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Pacific Policy Research Foundation

    EIN 760782229 · Headquarters: GRANITE BAY, CA, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Pacific Region Group

    EIN 474727085 · Headquarters: Oregon City, OR, US · Social Science · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  43. Pacific Resources for Education and Learning

    EIN 990279789 · Headquarters: HONOLULU, HI, USA · Social Science · Latest available filing year: 2022 · Primary form: IRS Form 990

  44. Pacific Sociological Association

    EIN 813027276 · Headquarters: BERKELEY, CA, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Pacific Sociological Association

    EIN 936040561 · Headquarters: ARCATA, CA, USA · Social Science · Latest available filing year: 2018 · Primary form: IRS Form 990

  46. Pacific World History Institute

    EIN 680452017 · Headquarters: SAN FRANCISCO, CA, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. Packer Wings Nfp

    EIN 364407262 · Headquarters: BOLINGBROOK, IL, US · Social Science · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  48. Paleoanthropology Society

    EIN 522150619 · Headquarters: Washington, DC, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Pamoja East Africa Christian Ministries

    EIN 832870855 · Headquarters: Dallas, TX, US · Social Science · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  50. Pan Cretan Chapter of Marin and Sonoma Counties Inc

    EIN 463932264 · Headquarters: PETALUMA, CA, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  51. Panopolis Corporation

    EIN 742859110 · Headquarters: Austin, TX, US · Social Science · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  52. Paramount Health Data Project

    EIN 843988197 · Headquarters: Indianapolis, IN, US · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Paranormal Investigations Team of Utah

    EIN 263505870 · Headquarters: West Haven, UT, US · Social Science · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  54. Parent Booster USA Inc

    EIN 452811769 · Headquarters: Victoria, TX, US · Social Science · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  55. Parent Booster USA Inc

    EIN 460754390 · Headquarters: Katy, TX, US · Social Science · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  56. Parkview Institute Inc

    EIN 931374330 · Headquarters: BETHESDA, MD, USA · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990

  57. Participatory Politics Foundation

    EIN 262296822 · Headquarters: Brooklyn, NY, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Partners in Marriage

    EIN 831922120 · Headquarters: FAYETTEVILLE, NC, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  59. Partnership for a New American Economy Research Fund

    EIN 320325450 · Headquarters: NEW YORK, NY, USA · Social Science · Latest available filing year: 2020 · Primary form: IRS Form 990

  60. Partnership for Economics Education and Research

    EIN 030598838 · Headquarters: Ann Arbor, MI, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. Partnership for Science & Technologyinc

    EIN 204914160 · Headquarters: IDAHO FALLS, ID, USA · Social Science · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  62. Partnership for Science and Technology Foundation Inc

    EIN 300801567 · Headquarters: Idaho Falls, ID, US · Social Science · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  63. Pasadena Lapidary Society Inc

    EIN 956061438 · Headquarters: Pasadena, CA, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Passages Inc

    EIN 251421670 · Headquarters: CLARION, PA, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Paterson Black Businesses Association A Nj Nonprofit Corp

    EIN 934447020 · Headquarters: PATERSON, NJ, US · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Pathfinder Research Network

    EIN 334328959 · Headquarters: Colorado Springs, CO, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Pathos Research & Consulting Inc

    EIN 854128702 · Headquarters: Boston, MA, US · Social Science · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  68. Paths Across the Pacific Inc

    EIN 824574978 · Headquarters: SITKA, AK, US · Social Science · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  69. Patriotic Republic

    EIN 831589303 · Headquarters: CHICAGO, IL, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Paudelian Research Institute

    EIN 414370490 · Headquarters: ROHNERT PARK, CA, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Peace Corps Friends of Dr Congo

    EIN 205227040 · Headquarters: Biddeford, ME, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Peace Creations

    EIN 680325116 · Headquarters: San Ramon, CA, USA · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Peace History Society

    EIN 752860754 · Headquarters: Mount Berry, GA, US · Social Science · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  74. Peacekeeping Institute

    EIN 474302457 · Headquarters: Red Oak, TX, US · Social Science · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  75. Pedro Gatos Institute on Addiction Health & Social Theory

    EIN 883909298 · Headquarters: Spicewood, TX, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Penn USA Inc

    EIN 832091323 · Headquarters: Palatine, IL, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Pennsylvania Judicial Society

    EIN 475264505 · Headquarters: HAVERFORD, PA, USA · Social Science · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  78. Pennsylvania Life Sciences Institute

    EIN 460894625 · Headquarters: WAYNE, PA, USA · Social Science · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  79. People Against a Casino Town

    EIN 200648837 · Headquarters: Florence, OR, US · Social Science · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  80. People to People International

    EIN 364596703 · Headquarters: Kansas City, MO, US · Social Science · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  81. People to People International

    EIN 743210811 · Headquarters: Kansas City, MO, US · Social Science · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  82. People United for Privacy Foundation

    EIN 823439592 · Headquarters: WASHINGTON, DC, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Peoples of the World Foundation

    EIN 550815832 · Headquarters: Springfield, MI, USA · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  84. Peopling of Philadelphia Collaborative Inc

    EIN 232728286 · Headquarters: Delanco, NJ, US · Social Science · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  85. Perfusion Science Institute Inc

    EIN 311627336 · Headquarters: Houston, TX, US · Social Science · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  86. Pericles Foundation of America Inc

    EIN 463391284 · Headquarters: NYC, NY, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Personalist Project

    EIN 261352244 · Headquarters: West Chester, PA, US · Social Science · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  88. Perspectives of Freedom Foundation Inc

    EIN 472125503 · Headquarters: POMPANO BEACH, FL, USA · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  89. Peruvian Childrens Alliance

    EIN 262706917 · Headquarters: TEWKSBURY, MA, US · Social Science · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  90. Peter G Peterson Institute for International Economics

    EIN 521226967 · Headquarters: WASHINGTON, DC, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Pew Research Center

    EIN 200881724 · Headquarters: Washington, DC, USA · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Philadelphia Archaeological Forum

    EIN 233024451 · Headquarters: PHILADELPHIA, PA, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Philadelphia Chapter No 1 of the National Association of Watch And

    EIN 364660710 · Headquarters: Media, PA, US · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  94. Philemon Foundation

    EIN 200417581 · Headquarters: NEW YORK, NY, USA · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  95. Philly Counts

    EIN 272037871 · Headquarters: PHILADELPHIA, PA, USA · Social Science · Latest available filing year: 2010 · Primary form: IRS Form 990-EZ

  96. Philoptima Resources

    EIN 263352337 · Headquarters: OAK VALE, MS, US · Social Science · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Phs Science Boosters

    EIN 464753060 · Headquarters: Petaluma, CA, US · Social Science · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  98. Phumulani

    EIN 813885346 · Headquarters: MINNEAPOLIS, MN, USA · Social Science · Latest available filing year: 2020 · Primary form: IRS Form 990

  99. Pias Inc

    EIN 270779638 · Headquarters: Omaha, NE, US · Social Science · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Picatinny Technology Innovation Center

    EIN 223443152 · Headquarters: RANDOLPH, NJ, USA · Social Science · Latest available filing year: 2019 · Primary form: IRS Form 990

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