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. Olonala Inc

    EIN 331624213 · Headquarters: New York, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Olympia Capitol Park Foundation

    EIN 300500194 · Headquarters: OLYMPIA, WA, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-EZ

  3. Olympia Community Solar

    EIN 832686367 · Headquarters: Olympia, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  4. Olympia Ecosystems

    EIN 471745539 · Headquarters: OLYMPIA, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  5. Olympia Garden Club

    EIN 916072378 · Headquarters: Olympia, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Olympia Peninsula Bay Watchers

    EIN 911537722 · Headquarters: Port Hadlock, WA, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  7. Olympic Coast Alliance

    EIN 731680682 · Headquarters: Olympia, WA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  8. Olympic Environmental Council

    EIN 943154532 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Olympic Fly Fishers of Edmonds Foundation

    EIN 471172087 · Headquarters: EDMONDS, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Olympic Forest Coalition

    EIN 223865041 · Headquarters: Quilcene, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Olympic Mountain Earthwisdom Circle

    EIN 460692757 · Headquarters: Port Angeles, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Olympic Nature Experience

    EIN 471002603 · Headquarters: Carlsborg, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  13. Olympic Wilderness Foundation

    EIN 861213672 · Headquarters: Carlsborg, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Olympic-Kitsap Peninsula Equestrian Teams Booster Club

    EIN 475260262 · Headquarters: Poulsbo, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  15. Olympus Garden Club Inc

    EIN 861056029 · Headquarters: union, NJ, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  16. Omaha Botanical Center Inc

    EIN 470659701 · Headquarters: Omaha, NE, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  17. Omaha Parks Foundation

    EIN 273185565 · Headquarters: OMAHA, NE, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Omaha Permaculture

    EIN 475544037 · Headquarters: OMAHA, NE, USA · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990

  19. Omne

    EIN 863287766 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Omni Solar Energy Lab

    EIN 270186181 · Headquarters: Arlington, VA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  21. Omnicolosx Inc

    EIN 873197856 · Headquarters: MIDDLETOWN, DE, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  22. Omora Sub-antarctic Research Alliance

    EIN 201607905 · Headquarters: Mocksville, NC, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  23. On a Wing and a Prayer

    EIN 462982080 · Headquarters: Corrales, NM, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. On Sacred Ground

    EIN 460922971 · Headquarters: Friday Harbor, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  25. On the Brink Foundation

    EIN 680528502 · Headquarters: Newport Beach, CA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  26. On The Ground

    EIN 061794589 · Headquarters: Traverse City, MI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  27. On the Salt Co

    EIN 992665566 · Headquarters: OLD SAYBROOK, CT, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. On Trail with Incorporated

    EIN 384342668 · Headquarters: Covina, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Once Upon a Carrot Inc

    EIN 455339293 · Headquarters: miami beach, FL, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  30. Once Was Lost Stewardship Initiative Inc

    EIN 393467686 · Headquarters: Saint Augustine, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. One Acre Foundation Inc

    EIN 880578694 · Headquarters: Juneau, WI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  32. One Atmosphere

    EIN 450548418 · Headquarters: San Francisco, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. One Big Sustainable Island

    EIN 453599222 · Headquarters: Monmouth, ME, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  34. One Blue Ocean

    EIN 842040518 · Headquarters: St Petersburg, FL, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  35. One Blue Pearl

    EIN 261801608 · Headquarters: Western Springs, IL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. One Bottle One Dream

    EIN 800956892 · Headquarters: Lutz, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. One Child One Light

    EIN 472186523 · Headquarters: Fremont, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. One Clean Coast

    EIN 920608841 · Headquarters: Gulfport, MS, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. One Clean Earth Society

    EIN 933235646 · Headquarters: HOUSTON, TX, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  40. One Cool Earth

    EIN 341939404 · Headquarters: San Luis Obispo, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  41. One Drop for Life

    EIN 824222638 · Headquarters: Saint Louis, MO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. One Earth Angels Inc

    EIN 994168550 · Headquarters: North Bergen, NJ, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. One Earth Collective

    EIN 471691970 · Headquarters: OAK PARK, IL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. One Earth Conservation

    EIN 812059074 · Headquarters: HOLLIS HILLS, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  45. One Earth Designs Inc

    EIN 270253576 · Headquarters: San Francisco, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. One Earth Fund Inc

    EIN 844624856 · Headquarters: Decatur, GA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  47. One Earth One Chance

    EIN 834369288 · Headquarters: Parker, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. One Earth One People

    EIN 311376357 · Headquarters: Chapel Hill, NC, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  49. One Earth Philanthropy

    EIN 852588841 · Headquarters: Culver City, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. One Feather Corporation

    EIN 372136696 · Headquarters: WINSTON, OR, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  51. One Fish Foundation

    EIN 473367582 · Headquarters: Yarmouth, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  52. One Forest Foundation

    EIN 333515000 · Headquarters: Ocean View, NJ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. One Garden Inc

    EIN 450466958 · Headquarters: Brixey, MO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. One Globe Foundation

    EIN 204330293 · Headquarters: Crystal Bay, NV, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  55. One Green Step

    EIN 931782980 · Headquarters: El Dorado Hills, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. One Gulf Foundation

    EIN 814530084 · Headquarters: Washington, DC, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  57. One Habitat Alliance

    EIN 412879473 · Headquarters: Mount Pleasant, SC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. One Habitat Foundation

    EIN 830680858 · Headquarters: San Diego, CA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  59. One Hand One Love Outreach

    EIN 463696116 · Headquarters: KIRBYVILLE, TX, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. One Heart

    EIN 821909117 · Headquarters: Eugene, OR, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  61. One Hundred Black Men

    EIN 133651712 · Headquarters: NEW YORK, NY, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  62. One Hundred Miles Inc

    EIN 455260656 · Headquarters: Brunswick, GA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. One Island One Beach Inc

    EIN 873381459 · Headquarters: Longboat Key, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. One Larchmont Inc

    EIN 833110030 · Headquarters: Larchmont, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  65. One Meter at a Time Foundation

    EIN 900852969 · Headquarters: SOLANA BEACH, CA, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-PF

  66. One Million Wells Inc

    EIN 821963744 · Headquarters: MEMPHIS, TN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. One Montgomery Green Inc

    EIN 452455470 · Headquarters: Silver Spring, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. One More Bag of Trash Inc

    EIN 393067683 · Headquarters: Las Vegas, NV, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. One More Green Space

    EIN 853962860 · Headquarters: Dallas, TX, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  70. One Nation Movement

    EIN 853128916 · Headquarters: Vancouver, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  71. One Nation United

    EIN 911360545 · Headquarters: Tacoma, WA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  72. One Ocaen Worldwide Coalition Co

    EIN 332341817 · Headquarters: COLORADO SPRINGS, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. One Ocean Media Foundation

    EIN 271068985 · Headquarters: STONE RIDGE, NY, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. One Penny Per Mile

    EIN 421725603 · Headquarters: Needham, MA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  75. One People One Reef

    EIN 850658879 · Headquarters: SOQUEL, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  76. One Piece Please

    EIN 994684125 · Headquarters: san diego, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. One Planet Foundation

    EIN 550903760 · Headquarters: Marina del Rey, CA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  78. One Planet Trust

    EIN 823339815 · Headquarters: Corvallis, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. One Rake at a Time Inc

    EIN 474344063 · Headquarters: DUNNELLON, FL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  80. One Simon Two Rubys & a Hamp

    EIN 334265678 · Headquarters: Mobile, AL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. One Square Inch of Silence Foundation

    EIN 271038713 · Headquarters: Joyce, WA, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  82. One Street Inc

    EIN 261390007 · Headquarters: Prescott, AZ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. One Tree Project

    EIN 934109423 · Headquarters: St Helens, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. One Valley Inc

    EIN 274543707 · Headquarters: ROANOKE, VA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  85. One Village Planet

    EIN 030532479 · Headquarters: Coral Springs, FL, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  86. One Village Project

    EIN 813327685 · Headquarters: KAPAAU, HI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  87. One Water One Story

    EIN 842327374 · Headquarters: Lebanon, PA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. One Well World Foundation

    EIN 824610908 · Headquarters: Silverthorne, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  89. One World Effort Inc

    EIN 874212149 · Headquarters: Hendersonville, NC, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-PF

  90. One World Environmental Center

    EIN 251611029 · Headquarters: Spring Mills, PA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  91. One World Foundation Inc

    EIN 208473017 · Headquarters: ATLANTA, GA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  92. One World One Nation

    EIN 333822690 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. One World Shared Future Community Labs

    EIN 931479030 · Headquarters: Gurnee, IL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. One Yard at a Time

    EIN 320792277 · Headquarters: Arvada, CO, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  95. One Year for Earth

    EIN 923006765 · Headquarters: CHICAGO, IL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Oneblock Inc

    EIN 853305696 · Headquarters: New York, NY, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  97. Onebothell

    EIN 473307508 · Headquarters: Bothell, WA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  98. Oneearthai Corporation

    EIN 991245192 · Headquarters: Lithia, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  99. OneGreenThing

    EIN 853927680 · Headquarters: Bozeman, MT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  100. Oneida County Lakes and Rivers Association Inc

    EIN 813545944 · Headquarters: Hazelhurst, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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