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. Oklahoma Garden Clubs

    EIN 731359295 · Headquarters: Guymon, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  2. Oklahoma Garden Clubs

    EIN 731359381 · Headquarters: LAWTON, OK, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  3. Oklahoma Garden Clubs

    EIN 731359383 · Headquarters: Lawton, OK, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  4. Oklahoma Garden Clubs

    EIN 731359390 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  5. Oklahoma Garden Clubs

    EIN 731359402 · Headquarters: MIAMI, OK, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  6. Oklahoma Garden Clubs

    EIN 731359405 · Headquarters: MIDWEST CITY, OK, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  7. Oklahoma Garden Clubs

    EIN 731359409 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  8. Oklahoma Garden Clubs

    EIN 731359417 · Headquarters: Midwest City, OK, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  9. Oklahoma Garden Clubs

    EIN 731359418 · Headquarters: Midwest City, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  10. Oklahoma Garden Clubs

    EIN 731359426 · Headquarters: Muskogee, OK, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  11. Oklahoma Garden Clubs

    EIN 731359428 · Headquarters: Norman, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  12. Oklahoma Garden Clubs

    EIN 731359436 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  13. Oklahoma Garden Clubs

    EIN 731359443 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  14. Oklahoma Garden Clubs

    EIN 731359445 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  15. Oklahoma Garden Clubs

    EIN 731359515 · Headquarters: Ponca City, OK, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  16. Oklahoma Garden Clubs

    EIN 731359521 · Headquarters: Sapulpa, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  17. Oklahoma Garden Clubs

    EIN 731359523 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  18. Oklahoma Garden Clubs

    EIN 731359526 · Headquarters: Shawnee, OK, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  19. Oklahoma Garden Clubs

    EIN 731359534 · Headquarters: OKLAHOMA CITY, OK, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  20. Oklahoma Garden Clubs

    EIN 731359541 · Headquarters: Sulphur, OK, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  21. Oklahoma Garden Clubs

    EIN 731359554 · Headquarters: Texhoma, OK, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  22. Oklahoma Garden Clubs

    EIN 731359556 · Headquarters: Tipton, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  23. Oklahoma Garden Clubs

    EIN 731359561 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  24. Oklahoma Garden Clubs

    EIN 731359566 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Oklahoma Garden Clubs

    EIN 731527356 · Headquarters: Wakita, OK, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  26. Oklahoma Garden Clubs

    EIN 731527370 · Headquarters: Bartlesville, OK, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  27. Oklahoma Garden Clubs

    EIN 800408956 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  28. Oklahoma Garden Glubs

    EIN 731527407 · Headquarters: Hastings, OK, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  29. Oklahoma Gardeners Association

    EIN 820790596 · Headquarters: BETHANY, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Oklahoma Grazing Lands Coalition Inc

    EIN 731572740 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  31. Oklahoma Green Schools Program Inc

    EIN 371659825 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  32. Oklahoma Invasive Plant Council

    EIN 263051709 · Headquarters: Norman, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Oklahoma Natural Employees Association

    EIN 730737924 · Headquarters: Tulsa, OK, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  34. Oklahoma Orchid Society

    EIN 161744105 · Headquarters: Norman, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  35. Oklahoma Pastel Society

    EIN 812650148 · Headquarters: Oklahoma City, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Oklahoma Prescribed Burn Association

    EIN 460663267 · Headquarters: Stillwater, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  37. Oklahoma Prescribed Burn Association

    EIN 812010742 · Headquarters: Springer, OK, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  38. Oklahoma Prescribed Burn Associaton Woodward County Prescribed Burn

    EIN 465290619 · Headquarters: WOODWARD, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Oklahoma Renewable Energy Council

    EIN 470878309 · Headquarters: Moore, OK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Oklahoma State Organization Intl Good Sam Recreational Vehicle Club

    EIN 731358000 · Headquarters: Edmond, OK, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  41. Oklahoma Sustainability Network Association

    EIN 412030911 · Headquarters: OKLAHOMA CITY, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  42. Oklahomans for Responsible Water Policy

    EIN 272625081 · Headquarters: BROKEN BOW, OK, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Okra Oklahoma Recycling Association

    EIN 731501007 · Headquarters: TULSA, OK, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  44. Oktibbeha County Master Gardeners Inc

    EIN 612263033 · Headquarters: Starkville, MS, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  45. Ol Fashion Forth of July Committe of Half Moon Bay

    EIN 942935766 · Headquarters: HALF MOON BAY, CA, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  46. Ol Jogi Community & Wildlife Foundation Inc

    EIN 833810574 · Headquarters: Naples, FL, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  47. Ola Mae Wilson Queen Production Inc

    EIN 900828274 · Headquarters: Chicago, IL, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  48. Olalashe Foundation Inc

    EIN 843925115 · Headquarters: WELLINGTON, FL, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  49. Olbrich Botanical Society Foundation Inc

    EIN 392002821 · Headquarters: MADISON, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Olbrich Botanical Society Inc

    EIN 391357247 · Headquarters: MADISON, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Olcott Park Brewfest

    EIN 823763191 · Headquarters: Virginia, MN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Old Bellevue Merchants Association

    EIN 455541549 · Headquarters: Bellevue, WA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  53. Old Chatham Conservation Association Inc

    EIN 271476778 · Headquarters: KINDERHOOK, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Old Colorado City Trash Fairies

    EIN 872957593 · Headquarters: Colorado Springs, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Old Corlies Avenue Preservation Alliance

    EIN 261126988 · Headquarters: Neptune, NJ, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  56. Old Dominion Appalachian Trail Club

    EIN 541103169 · Headquarters: richmond, VA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Old Dominion Conservation and Educational Foundation

    EIN 834431129 · Headquarters: FLINT HILL, VA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  58. Old Florida Heritage Highway Inc

    EIN 990364836 · Headquarters: Micanopy, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Old Homestead Garden Club

    EIN 026009828 · Headquarters: Swanzey, NH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Old Homestead Preservation Society Inc

    EIN 753149093 · Headquarters: Crown Point, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Old Ladies Against Underwater Garbage Inc

    EIN 392187087 · Headquarters: North Falmouth, MA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  62. Old Lyme Land Trust Inc

    EIN 066085184 · Headquarters: OLD LYME, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  63. Old Mountain Arboretum Inc

    EIN 851036810 · Headquarters: WINONA, MS, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Old Northside Foundation Inc

    EIN 351804206 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  65. Old Oak Cliff Conservation League Inc

    EIN 262133852 · Headquarters: Dallas, TX, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  66. Old Orchard Conservancy

    EIN 460886849 · Headquarters: Santa Ana, CA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  67. Old Pine Farm Natural Lands Tr Inc

    EIN 526544704 · Headquarters: Deptford, NJ, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  68. Old Rag Master Naturalists

    EIN 208958070 · Headquarters: Culpeper, VA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  69. Old Redford Hops Inc

    EIN 472949254 · Headquarters: Beverly Hills, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Old River Valley Place of Nature Foundation

    EIN 311278721 · Headquarters: Oxford, OH, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  71. Old Saybrook Coastal Resilience Coalition Inc

    EIN 922947323 · Headquarters: Old Saybrook, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Old Saybrook Land Trust Inc

    EIN 061487669 · Headquarters: OLD SAYBROOK, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Old School Roundup Inc

    EIN 863932958 · Headquarters: Indian Wells, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  74. Old Surry Village Schoolhouse Preservation Group

    EIN 812705160 · Headquarters: Surry, ME, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Old Threshers Group

    EIN 841093476 · Headquarters: Yuma, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Old Town Atwater

    EIN 842315073 · Headquarters: ATWATER, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  77. Old Town Community Association

    EIN 843282699 · Headquarters: Portland, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Old Town Neighborhood Foundation

    EIN 471747480 · Headquarters: Chicago, IL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. Old Trapper Memorial Tree Park

    EIN 263158113 · Headquarters: Alpine, WY, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  80. Old-forest

    EIN 863627349 · Headquarters: NORTH RICHLAND HILLS, TX, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  81. Old-growth Forest Network Inc

    EIN 454115570 · Headquarters: EASTON, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  82. Olde & South Kensington Green Space

    EIN 834158522 · Headquarters: PHILADELPHIA, PA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  83. Olde Hickory Mill Park

    EIN 474127109 · Headquarters: HICKORY, NC, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  84. Olde Richmond Civic Association

    EIN 260733722 · Headquarters: PHILADELPHIA, PA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  85. Oldsmar Organic Community Garden Inc

    EIN 465621321 · Headquarters: Oldsmar, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Oleander Garden Club of the Palm Beaches Inc

    EIN 862198475 · Headquarters: West Palm Beach, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Olentangy River Valley Association Inc

    EIN 311253500 · Headquarters: Delaware, OH, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  88. Olentangy Watershed Alliance

    EIN 311763712 · Headquarters: Columbus, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Olive Natural Heritage Society Inc

    EIN 141789233 · Headquarters: West Shokan, NY, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  90. Olive Tree Education

    EIN 208030686 · Headquarters: Nashville, TN, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  91. Olive Tree South Corp

    EIN 475535732 · Headquarters: Norfolk, VA, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  92. Olivette Conservation Trust Inc

    EIN 810801096 · Headquarters: ASHEVILLE, NC, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  93. Olivette in Bloom

    EIN 431907241 · Headquarters: Saint Louis, MO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Olivo Foundation

    EIN 921717213 · Headquarters: Scottsdale, AZ, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  95. Ollie Otter Society

    EIN 831301868 · Headquarters: LOS ANGELES, CA, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  96. Olmsted Falls Garden Club

    EIN 341589333 · Headquarters: Olmsted Twp, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  97. Olmsted Landscape Institute Inc

    EIN 471775677 · Headquarters: Asheville, NC, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  98. Olmsted Linear Park Alliance Inc

    EIN 582357899 · Headquarters: ATLANTA, GA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  99. Olmsted Township Co-op

    EIN 334134992 · Headquarters: Olmsted Falls, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Olmsted-fairview Park Comission

    EIN 824860509 · Headquarters: Seattle, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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