Environment nonprofits

Environment nonprofits. Browse 35,718 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. Connect Ministry

    EIN 471057769 · Headquarters: Houston, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Connect West Palm Beach Inc

    EIN 822401835 · Headquarters: West Palm Beach, FL, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  3. Connect-usaltwheels Inc

    EIN 204573397 · Headquarters: CAMBRIDGE, MA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  4. Connected Caring World Inc

    EIN 854008403 · Headquarters: Morris Plains, NJ, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  5. Connecticut Agricultural Experiment Station Research Foundation Inc

    EIN 260367921 · Headquarters: New Haven, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Connecticut Association of Conservation & Inland Wetlands

    EIN 223209645 · Headquarters: MIDDLETOWN, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Connecticut Audubon Society Inc

    EIN 060653531 · Headquarters: FAIRFIELD, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  8. Connecticut Botanical Society Inc

    EIN 066051998 · Headquarters: Kensington, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  9. Connecticut Brownfield Land Bank

    EIN 463377961 · Headquarters: Essex, CT, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  10. Connecticut Business Environmental Council Inc

    EIN 061388970 · Headquarters: Bristol, CT, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  11. Connecticut Butterfly Association Inc

    EIN 223345360 · Headquarters: Wallingford, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Connecticut Chapter of ACHMM Inc

    EIN 300432691 · Headquarters: Plainville, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  13. Connecticut Chapter of the Air and Wast Management Association

    EIN 061369613 · Headquarters: Middletown, CT, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  14. Connecticut Citizen Research Group Inc

    EIN 060889894 · Headquarters: HARTFORD, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Connecticut Clean Communities Advisory Inc

    EIN 934746851 · Headquarters: Woodbury, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Connecticut Clean Waterways Project Inc

    EIN 880714938 · Headquarters: old saybrook, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Connecticut Coalition for Environmental Justice Inc

    EIN 061511861 · Headquarters: HARTFORD, CT, USA · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990

  18. Connecticut Community Gardening Association

    EIN 680603309 · Headquarters: New Haven, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Connecticut Conservation Associatio

    EIN 060880962 · Headquarters: Bridgeport, CT, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  20. Connecticut Earth Network Inc

    EIN 331148129 · Headquarters: Georgetown, CT, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  21. Connecticut Federation of Lakes Inc

    EIN 061442427 · Headquarters: Bridgewater, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Connecticut Fuel Oil Conservation Fund Inc

    EIN 450592873 · Headquarters: LITCHFIELD, CT, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  23. Connecticut Ground Water Association Inc

    EIN 223043350 · Headquarters: New London, CT, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  24. Connecticut Land Conservation Council Inc

    EIN 822683386 · Headquarters: Middletown, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Connecticut Maritime Foundation in Inc

    EIN 383679300 · Headquarters: STONINGTON, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  26. Connecticut Master Gardener Assoc Inc

    EIN 061221782 · Headquarters: Farmington, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Connecticut Orchid Society Inc

    EIN 050634357 · Headquarters: Farmington, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Connecticut Outdoor Recreation Alliance

    EIN 871497818 · Headquarters: Rockfall, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Connecticut Recyclers Coalition Inc

    EIN 223086715 · Headquarters: New Haven, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  30. Connecticut Resource Conservation & Dev Area Inc

    EIN 060976326 · Headquarters: HADDAM, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  31. Connecticut River Coastal Conservation District Inc

    EIN 060733567 · Headquarters: MIDDLETOWN, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  32. Connecticut River Ecological Study Foundation Inc

    EIN 200419509 · Headquarters: St Charles, IL, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  33. Connecticut River Fest Inc

    EIN 030362692 · Headquarters: Thetford Center, VT, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. Connecticut River Joint Commissions Inc

    EIN 223086288 · Headquarters: LEBANON, NH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  35. Connecticut River Watershed Council Inc

    EIN 042148397 · Headquarters: GREENFIELD, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  36. Connecticut River Watershed Council of Connecticut Inc

    EIN 237042170 · Headquarters: GREENFIELD, MA, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  37. Connecticut River Watershed Farmers Alliance Inc

    EIN 812061841 · Headquarters: Woodstock, VT, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  38. Connecticut Roundtable on Climate and Jobs

    EIN 824185276 · Headquarters: Clinton, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Connecticut Sustainable Business Council Inc

    EIN 813372785 · Headquarters: Bethel, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  40. Connecticut Waterfowl Association Inc

    EIN 066099895 · Headquarters: Cheshire, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  41. Connecticut Westchester Mycological Assoc Incorporated

    EIN 133238722 · Headquarters: White Plains, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Connecticut Wind Collaborative Inc

    EIN 934487800 · Headquarters: GROTON, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  43. Connecting California Conservancy

    EIN 463743966 · Headquarters: Simi Valley, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  44. Connecting Resources to Global Needs

    EIN 470990166 · Headquarters: Decatur, GA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Connecting the Dots Project

    EIN 333805919 · Headquarters: Springfield, IL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Connection Earth Inc

    EIN 463549474 · Headquarters: NEWARK, NJ, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Connections Family Resource Center

    EIN 821914945 · Headquarters: Manassas, VA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  48. Connemara Conservancy Foundation

    EIN 756292780 · Headquarters: Allen, TX, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  49. Conner-greathouse Foundation

    EIN 920290789 · Headquarters: STAMPING GROUND, KY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Conneticut Valley Garden Club

    EIN 066040380 · Headquarters: Simsbury, CT, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  51. Connie Hansen Garden Conservancy

    EIN 931157157 · Headquarters: Lincoln City, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  52. Connoquenessing Watershed Alliance Inc

    EIN 251843176 · Headquarters: Connoquenessing, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Conodoguinet Creek Watershed Association Inc

    EIN 251720684 · Headquarters: lemoyne, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Conquest Foundation Inc

    EIN 522233255 · Headquarters: Centreville, MD, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  55. Conrad Garden Club

    EIN 823235016 · Headquarters: Conrad, MT, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  56. Conradina Chapter Fnps Inc

    EIN 593251333 · Headquarters: Melbourne Village, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Conscience Point Shellfish Hatchery

    EIN 463179524 · Headquarters: SOUTHAMPTON, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  58. Conscious Cap Corp

    EIN 873916666 · Headquarters: Columbus, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Conscious Connections Inc

    EIN 450570816 · Headquarters: WILMINGTON, DE, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  60. Conscious Growth

    EIN 841942667 · Headquarters: Portland, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Conscious Inc

    EIN 842813582 · Headquarters: HARTFORD, CT, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  62. Consensus Consortium

    EIN 833404359 · Headquarters: San Jose, CA, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-EZ

  63. Conserfest

    EIN 473415977 · Headquarters: BLOCK ISLAND, RI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Conservancy and Community Trust of South Gulf Cove Inc

    EIN 510441495 · Headquarters: PLACIDA, FL, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  65. Conservancy at Victory Ranch Inc

    EIN 810802776 · Headquarters: Kamas, UT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Conservancy for Charles County Inc

    EIN 522050610 · Headquarters: Waldorf, MD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Conservancy for Cuyahoga Valley National Park

    EIN 341917257 · Headquarters: PENINSULA, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Conservancy Friends of Aquarina Inc

    EIN 853862593 · Headquarters: Melbourne Beach, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Conservancy Guardians USA Fund Inc

    EIN 873158911 · Headquarters: East Point, GA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Conservancy Initiative

    EIN 814909360 · Headquarters: Northville, MI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Conservancy of the Sea Islands

    EIN 582359979 · Headquarters: Kiawah Island, SC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  72. Conservancy to Protect the Land

    EIN 205684938 · Headquarters: SACRAMENTO, CA, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990

  73. Conservania

    EIN 924018657 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Conservantion

    EIN 821613114 · Headquarters: Boulder, CO, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  75. Conservation Action Fund for Education

    EIN 743166298 · Headquarters: Santa Rosa, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  76. Conservation Action Project

    EIN 311544350 · Headquarters: BOWLING GREEN, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  77. Conservation Action Research Network

    EIN 455045474 · Headquarters: FAIRFAX, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  78. Conservation Ag Foundation Inc

    EIN 934608656 · Headquarters: Brookfield, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Conservation Agents Association Foundation

    EIN 824970234 · Headquarters: MAYSVILLE, MO, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-PF

  80. Conservation Agreement Fund A Nj Nonprofit Corporation

    EIN 262785233 · Headquarters: Lewes, DE, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Conservation Alabama

    EIN 631221685 · Headquarters: Birmingham, AL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Conservation Alliance of St Lucie County Inc

    EIN 592461819 · Headquarters: Fort Pierce, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Conservation Allies

    EIN 843985727 · Headquarters: WARRENTON, VA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  84. Conservation and Research Initiative

    EIN 333789639 · Headquarters: LEXINGTON, KY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Conservation Atlas

    EIN 821344268 · Headquarters: GEORGETOWN, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Conservation Awareness Foundation Inc

    EIN 161514649 · Headquarters: Poughkeepsie, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. Conservation Beyond Borders Foundation

    EIN 743255958 · Headquarters: MINNETONKA, MN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  88. Conservation Biology Institute

    EIN 911840582 · Headquarters: CORVALLIS, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Conservation Brothers

    EIN 920301075 · Headquarters: Panama City, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Conservation Coalition of Oklahoma

    EIN 611661052 · Headquarters: Oklahoma City, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  91. Conservation Collective

    EIN 830606873 · Headquarters: LECEISTER, NC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. Conservation Colorado Education Fund

    EIN 840614285 · Headquarters: DENVER, CO, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  93. Conservation Confluence

    EIN 994604483 · Headquarters: The Plains, VA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  94. Conservation Congress

    EIN 200244175 · Headquarters: Great Falls, MT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  95. Conservation Connection

    EIN 262038361 · Headquarters: Olympia, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Conservation Consultants Inc

    EIN 251339240 · Headquarters: PITTSBURGH, PA, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990

  97. Conservation Corps

    EIN 411881102 · Headquarters: ST PAUL, MN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Conservation Council for Hawaii

    EIN 990199211 · Headquarters: HONOLULU, HI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Conservation Diver Foundation

    EIN 822987996 · Headquarters: Evergreen, CO, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  100. Conservation Easement Holding Trust Inc

    EIN 843949602 · Headquarters: Valparaiso, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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