Environment nonprofits in Ohio

Environment nonprofits in Ohio. Browse 961 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. Keepers of the Duck Creek Watershed

    EIN 311709848 · Headquarters: Caldwell, OH, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  2. Kelleys Island Trail and Bike Association

    EIN 922057402 · Headquarters: Kelleys Island, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Kendall Foundation Inc

    EIN 853269538 · Headquarters: Ashtabula, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Killbuck Watershed Land Trust

    EIN 341938078 · Headquarters: WOOSTER, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  5. Kokosing Gap Trail Inc

    EIN 311333783 · Headquarters: Gambier, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  6. Komeza Foundation

    EIN 331774125 · Headquarters: Columbus, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Kucinich Institute for Human and Ecological Security

    EIN 822657331 · Headquarters: Cleveland, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. La Fleur De Terre Garden Club

    EIN 943474687 · Headquarters: Hicksville, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  9. Ladybug Garden Club

    EIN 830482450 · Headquarters: Greenville, OH, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  10. Lake and Trails Organization

    EIN 263132922 · Headquarters: MACEDONIA, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Lake County Off-road Conservation

    EIN 262729476 · Headquarters: mentor, OH, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  12. Lake Erie Advocates

    EIN 871103181 · Headquarters: Toledo, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Lake Erie Chapter National Corvette Restorers Society Inc

    EIN 341552163 · Headquarters: BELLEVUE, OH, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  14. Lake Erie Foundation

    EIN 813042803 · Headquarters: LAKESIDE, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Lake Erie Institute

    EIN 820657143 · Headquarters: Bedford, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Lake Erie Islands Conservancy

    EIN 474598992 · Headquarters: PUT IN BAY, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  17. Lake Erie Islands Historical Society

    EIN 341487368 · Headquarters: PUT IN BAY, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Lake Erie Islands Nature and Wildlife Center

    EIN 275017525 · Headquarters: PUT IN BAY, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  19. Lake Erie Waterkeeper Inc

    EIN 562456240 · Headquarters: TOLEDO, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  20. Lake Erie Western Alliance for Sustainability Inc

    EIN 262666377 · Headquarters: Toledo, OH, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  21. Lake Logan Association Inc

    EIN 331492523 · Headquarters: Logan, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Lake Michigan POWER Coalition

    EIN 271668314 · Headquarters: Toledo, OH, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  23. Lake of Love Foundation

    EIN 852060967 · Headquarters: Dayton, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Lake Parks Foundation

    EIN 341627858 · Headquarters: Wickliffe, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  25. Lake Tomahawk Sportsmans Club

    EIN 473811387 · Headquarters: Negley, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Lance Ecological Research Laboratory

    EIN 992054278 · Headquarters: Warren, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Land Conservancy Inc

    EIN 311650040 · Headquarters: WESTERVILLE, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  28. Las Gralarias Foundation Inc

    EIN 203150278 · Headquarters: NORTH OLMSTED, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  29. Latheofheaven

    EIN 461205182 · Headquarters: Lakewood, OH, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  30. Lead for Pollinators

    EIN 844265140 · Headquarters: Akron, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  31. Leave No Child Inside Central Ohio Collaborative

    EIN 833293107 · Headquarters: Columbus, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Lebanon Council of Garden Clubs Inc

    EIN 237212797 · Headquarters: Lebanon, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Legaseas Inc

    EIN 364516825 · Headquarters: NEW RICHMOND, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Lessons from the Garden Inc

    EIN 842776620 · Headquarters: Miamisburg, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Liberty Conservation Club Inc

    EIN 991112350 · Headquarters: Ada, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Licking County Master Gardener Volunteers

    EIN 311575941 · Headquarters: NEWARK, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Lima Garden Club

    EIN 201628397 · Headquarters: Wapakoneta, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Lino and Jeannette Deanna Conservation Tr

    EIN 836477688 · Headquarters: Elyria, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Lisbon Area Coon Hunters Club Inc

    EIN 473277573 · Headquarters: SALEM, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Lisbon Landmark Foundation

    EIN 010904250 · Headquarters: LISBON, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Little Beaver Creek Land Foundation

    EIN 341738314 · Headquarters: EAST LIVERPOOL, OH, USA · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990

  42. Little Garden Club of Columbus

    EIN 311130629 · Headquarters: BLACKLICK, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. Little Miami Conservancy

    EIN 310731645 · Headquarters: LOVELAND, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  44. Little Miami River Partnership

    EIN 522109319 · Headquarters: Owensville, OH, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  45. Little Miami Watershed Network

    EIN 882334595 · Headquarters: Bellbrook, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. Local Motives Inc

    EIN 831463498 · Headquarters: Columbus, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Loco Yaks

    EIN 462256135 · Headquarters: South Amherst, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  48. Logan County Land Trust

    EIN 900104687 · Headquarters: Bellefontaine, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Logan Theater Inc

    EIN 832876176 · Headquarters: LOGAN, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Lorain County Tropical Greenhouse & Museum Assoc

    EIN 341673641 · Headquarters: LORAIN, OH, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990

  51. Lorain County Youth Brigade

    EIN 854149673 · Headquarters: Amherst, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Loramie Watershed Association Inc

    EIN 341723291 · Headquarters: Fort Loramie, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Loudonville Wild Life Conservation Club Inc

    EIN 346559255 · Headquarters: Loudonville, OH, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  54. Love Our Land Ohio

    EIN 414609113 · Headquarters: Loveland, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Lowellville Parent Teacher Organization

    EIN 341954007 · Headquarters: Lowellville, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  56. Lucasville Valley Garden Club

    EIN 320571202 · Headquarters: Lucasville, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Luckey Garden Club

    EIN 923653345 · Headquarters: LUCKEY, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Luke19

    EIN 882131123 · Headquarters: Canton, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Madison Conservation Foundation Inc

    EIN 311417320 · Headquarters: London, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. Mahoning County Conservation Foundation Inc

    EIN 455487710 · Headquarters: YOUNGSTOWN, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  61. Mahoning River Consortium

    EIN 341845122 · Headquarters: YOUNGSTOWN, OH, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  62. Mahoning River Garden Club

    EIN 992590405 · Headquarters: Struthers, OH, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  63. Make Wellston Beautiful Inc

    EIN 462346850 · Headquarters: Wellston, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  64. Mantua Restoration Society Inc

    EIN 900839658 · Headquarters: Mantua, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Martam Group

    EIN 920681302 · Headquarters: Orange, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  66. Martha Walker Garden Club

    EIN 311013959 · Headquarters: COLUMBUS, OH, USA · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  67. Master Gardeners of Clark County

    EIN 311710686 · Headquarters: SPRINGFIELD, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  68. Master Gardeners of Cuyahoga County Inc

    EIN 383711785 · Headquarters: Cleveland, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Master Gardeners of Greene County

    EIN 311800473 · Headquarters: Xenia, OH, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  70. Maumee River Basin Center for Ecological Restoration

    EIN 465348407 · Headquarters: Defiance, OH, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  71. Maumee Valley Resource Conservation & Development Area

    EIN 341778754 · Headquarters: Defiance, OH, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  72. Maya Foundations Belize

    EIN 612341418 · Headquarters: Delaware, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  73. Mcbrayer Distilling Foundation

    EIN 331690697 · Headquarters: MASON, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  74. Mcdonald Columbian Land Company

    EIN 237113400 · Headquarters: mcdonald, OH, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  75. Mcdougalds Pollination Station

    EIN 333650370 · Headquarters: Parma, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Meadowsweet Farm Environmental Education Center

    EIN 341807607 · Headquarters: Atwater, OH, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  77. Mechanicsburg Volunteer Fire Department

    EIN 341211997 · Headquarters: Mechanicsburg, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  78. Medina County Herb Society

    EIN 465206412 · Headquarters: Medina, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Meigs Local Enrichment Foundation Inc

    EIN 260157293 · Headquarters: Pomeroy, OH, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990

  80. Meyers Lake Preserve Inc

    EIN 341765744 · Headquarters: CANTON, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  81. Miami Valley Fly Fishers Inc

    EIN 814948751 · Headquarters: TROY, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Miami Valley Rc & D Council Inc

    EIN 311360618 · Headquarters: Wilmington, OH, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  83. Miamisburg Community Foundation

    EIN 463879580 · Headquarters: MIAMISBURG, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Michindoh Sole Source Aquifer Group Inc

    EIN 270110775 · Headquarters: Bryan, OH, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  85. Mid-america Orchid Congress Inc

    EIN 376052117 · Headquarters: Cincinnati, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Middleburg Heights Garden Club

    EIN 994256122 · Headquarters: MIDDLEBURG HEIGHTS, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Military Order of the Cootie of the United States

    EIN 341293581 · Headquarters: Chagrin Falls, OH, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  88. Mill Creek Alliance

    EIN 311465290 · Headquarters: READING, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Miller City Fish and Pond Conservation

    EIN 393679827 · Headquarters: Leipsic, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Mission Oaks Foundation

    EIN 311767485 · Headquarters: ZANESVILLE, OH, USA · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-PF

  91. Mission Oaks Gardens

    EIN 371829237 · Headquarters: Zanesville, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Mohawk Community Development Suppor T Fund

    EIN 811001015 · Headquarters: Malvern, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  93. Mohican Basin Landowners

    EIN 451548591 · Headquarters: PERRYSVILLE, OH, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  94. Mohican School in the Out-of-doors

    EIN 341155684 · Headquarters: BUTLER, OH, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990

  95. Mohican Trails Club

    EIN 562465492 · Headquarters: Ashland, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Mohican Valley Trail Inc

    EIN 311523813 · Headquarters: Fredericktown, OH, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  97. Morris Institute

    EIN 261507917 · Headquarters: Caldwell, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  98. Morrow Environmental Preservation Assn

    EIN 311526518 · Headquarters: Morrow, OH, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  99. Mount Healthy Chapter Iwla

    EIN 316049329 · Headquarters: CINCINNATI, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  100. Mrb Hydrologic Environment Research Inc

    EIN 341766652 · Headquarters: Columbiana, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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