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. Grassroots Foundation of Morrow County

    EIN 883148925 · Headquarters: Mount Gilead, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  2. Great Lakes Natural Fibers Inc

    EIN 931576592 · Headquarters: Wooster, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Great Parks Forever

    EIN 261559254 · Headquarters: CINCINNATI, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  4. Greater Cincinnati Daylily-hosta Society

    EIN 311264695 · Headquarters: Maineville, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Greater Cincinnati Earth Coalition

    EIN 311603449 · Headquarters: Cincinnati, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  6. Greater Cincinnati Energy Alliance

    EIN 263977160 · Headquarters: CINCINNATI, OH, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990

  7. Greater Cincinnati Harbor and Maritime

    EIN 237203757 · Headquarters: CINCINNATI, OH, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  8. Greater Cincinnati Master Gardener Association

    EIN 311395269 · Headquarters: Cincinnati, OH, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  9. Greater Cincinnati Orchid Society

    EIN 264013967 · Headquarters: Mason, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Greater Cleveland Aquarium Education Fund

    EIN 454954342 · Headquarters: Cleveland, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Greater Cleveland Beekeepers Association

    EIN 264100410 · Headquarters: Cleveland, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Greater Columbus Dahlia Society

    EIN 843198874 · Headquarters: COLUMBUS, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Greater Columbus Growing Coalition

    EIN 454701102 · Headquarters: Columbus, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Greater Dayton African Coalition

    EIN 813940737 · Headquarters: Kettering, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  15. Greater Lake Lorelei Water Improvement Corp

    EIN 822486727 · Headquarters: Fayetteville, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Greater Montgomery County Master Gardener Association

    EIN 262847925 · Headquarters: Kettering, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Greater Ohio Policy Center Inc

    EIN 260784344 · Headquarters: COLUMBUS, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  18. Green Alliance

    EIN 451262498 · Headquarters: Alliance, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Green Alternative Foundation

    EIN 800565267 · Headquarters: Piqua, OH, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  20. Green Columbus

    EIN 261321476 · Headquarters: COLUMBUS, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  21. Green Creek Marsh Conservancy

    EIN 852450666 · Headquarters: Helena, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Green Energy Ohio

    EIN 341796583 · Headquarters: COLUMBUS, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  23. Green Environmental Coalition

    EIN 311228151 · Headquarters: Yellow Springs, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Green Sports Ohio Inc

    EIN 271131298 · Headquarters: Salem, OH, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  25. Green Triangle Project

    EIN 264604738 · Headquarters: Lakewood, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  26. Green Umbrella

    EIN 311770299 · Headquarters: CINCINNATI, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  27. Greenacres Foundation Inc

    EIN 311250075 · Headquarters: Cincinnati, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  28. Greene Acres Community Garden Inc

    EIN 472266600 · Headquarters: Broadview Heights, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Greensprout Inc

    EIN 273532441 · Headquarters: Kent, OH, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  30. Greenwich Neighbors United

    EIN 383942454 · Headquarters: Greenwich, OH, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  31. Greenwood Farm Historical Cultural & Arts Association Inc

    EIN 270641648 · Headquarters: Richmond Hts, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Groundwork Cincinnatimill Creek

    EIN 311388594 · Headquarters: CINCINNATI, OH, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990

  33. Grow Huron

    EIN 824813009 · Headquarters: SANDUSKY, OH, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  34. Growing Green Inc

    EIN 275079432 · Headquarters: Martinsville, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  35. Gruder Foundation

    EIN 822064933 · Headquarters: NORTH CANTON, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  36. Gryphon Den Creatures of the Night Inc

    EIN 471016436 · Headquarters: Magnolia, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Haag Insight Incorporated

    EIN 204296321 · Headquarters: Sandusky, OH, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  38. Hamilton Conservation Corps Llc

    EIN 812530570 · Headquarters: Hamilton, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  39. Hancock County Naturalists

    EIN 931841864 · Headquarters: Findlay, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Happy Planet

    EIN 825109093 · Headquarters: Grafton, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Healing Hearts Gardening

    EIN 883422869 · Headquarters: North Canton, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  42. Heights Tree People Inc

    EIN 933484759 · Headquarters: Cleveland Heights, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Henry County Land Reutilization Corporation

    EIN 822568461 · Headquarters: Napoleon, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  44. Henry Wood Sportsmans Alliance

    EIN 471817176 · Headquarters: Grand Rapids, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  45. Hicksville Trail Association

    EIN 884207494 · Headquarters: Hicksville, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Hike Toronto

    EIN 932750908 · Headquarters: Toronto, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  47. Hocking River Commission

    EIN 311492331 · Headquarters: ATHENS, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  48. Hoe N Hope Garden Club of Jerera

    EIN 341388169 · Headquarters: Bluffton, OH, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  49. Holborn Herb Growers Guild Inc

    EIN 814071322 · Headquarters: Youngstown, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Holden Arboretum Trust

    EIN 346919291 · Headquarters: BROOKLYN, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  51. Hollandia Botanical Gardens

    EIN 020611594 · Headquarters: Springfield, OH, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  52. Holmes Conservation

    EIN 271831106 · Headquarters: Holmesville, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  53. Honey Creek Watershed Association Inc

    EIN 161716255 · Headquarters: Troy, OH, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  54. Hopfinger-zimmerman Memorial Park

    EIN 813728952 · Headquarters: PORT CLINTON, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  55. Horticultural Research Institute Inc

    EIN 521052547 · Headquarters: COLUMBUS, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  56. Hosta Society of Greater Cincinnati

    EIN 815118373 · Headquarters: Cincinnati, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Hoto9cycle Corp

    EIN 994831732 · Headquarters: NORTH JACKSON, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. How Do We Sustain

    EIN 863197108 · Headquarters: Dayton, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Hubbard Environmental & Land Preservation

    EIN 201151949 · Headquarters: HUBBARD, OH, USA · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-EZ

  60. Hudson Garden Club Inc

    EIN 346542336 · Headquarters: HUDSON, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  61. Hudson Society of Artists

    EIN 460981506 · Headquarters: Hudson, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Huff Run Watershed Restoration Partnership Inc

    EIN 311531070 · Headquarters: Mineral City, OH, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  63. Hunters Point Waterfowl Foundation

    EIN 383826476 · Headquarters: AVON, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  64. Huron County Land Reutilization

    EIN 831340521 · Headquarters: NORWALK, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Huron County Master Gardener Association

    EIN 300073613 · Headquarters: Norwalk, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Hydro4life

    EIN 832752582 · Headquarters: DUBLIN, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  67. Ideas Institute

    EIN 341905156 · Headquarters: Cleveland Hts, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  68. Idora Neighborhood Association

    EIN 264638280 · Headquarters: Youngstown, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Imago

    EIN 311077150 · Headquarters: Cincinnati, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  70. Indian Hill Equestrian Club

    EIN 463491759 · Headquarters: Bethel, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Indian Hill Pure Water Project

    EIN 934161140 · Headquarters: CINCINNATI, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Indian Lake Advocacy

    EIN 883632301 · Headquarters: RUSSELLS POINT, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  73. Indian Lake Watershed Project

    EIN 311580300 · Headquarters: BELLEFONTAINE, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  74. Indiana Water Quality Association

    EIN 351785111 · Headquarters: DAYTON, OH, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  75. Inniswood Garden Society Inc

    EIN 311140979 · Headquarters: WESTERVILLE, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  76. Innovative Farmers of Ohio

    EIN 311398277 · Headquarters: Gates Mills, OH, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  77. Institute for Energy Economics and Financial Analysis Inc

    EIN 454244605 · Headquarters: VALLEY CITY, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Integrated Horticultural Therapy Services

    EIN 462396910 · Headquarters: Huron, OH, US · Environment · Latest available filing year: 2015 · Primary form: IRS Form 990-N

  79. International Association of Administrative Professionals

    EIN 341561349 · Headquarters: Mentor, OH, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  80. International Association of Administrative Professionals

    EIN 346548787 · Headquarters: Brecksville, OH, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  81. International Environmental Communication Association

    EIN 274461017 · Headquarters: Cincinnati, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  82. International Nature Loving Association of Columbus Ohio Inc

    EIN 273888723 · Headquarters: Columbus, OH, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  83. International Nuclear Security Corporation

    EIN 851414903 · Headquarters: Mantua, OH, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  84. International Union for the Study of Social Insects

    EIN 451350485 · Headquarters: COLUMBUS, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Irish Garden Club

    EIN 830491261 · Headquarters: CLEVELAND, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  86. Ironton in Bloom

    EIN 261247952 · Headquarters: IRONTON, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  87. Israel Nature and Heritage Foundati

    EIN 821465949 · Headquarters: GROVE CITY, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  88. Iyfr Western Lake Erie Fleet

    EIN 471114853 · Headquarters: Toledo, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Izaak Walton League of America Inc

    EIN 208452267 · Headquarters: Delta, OH, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  90. Izaak Walton League of America Inc

    EIN 311097334 · Headquarters: Loveland, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  91. Izaak Walton League of America Inc

    EIN 521382427 · Headquarters: Delta, OH, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  92. Jackson Township Recycling Station Inc

    EIN 341367493 · Headquarters: CANTON, OH, USA · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-EZ

  93. Jefferson Township Land Conservation Association

    EIN 311604629 · Headquarters: BLACKLICK, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Jose & Sons Recycling Inc

    EIN 462942471 · Headquarters: Lima, OH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Joy Outdoor Education Center Foundation Inc

    EIN 310672822 · Headquarters: Clarksville, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  96. Just Earth - Cincinnati Inc

    EIN 920871290 · Headquarters: Cincinnati, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  97. Keep Akron Beautiful

    EIN 341341298 · Headquarters: AKRON, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Keep Cincinnati Beautiful Inc

    EIN 310948219 · Headquarters: CINCINNATI, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  99. Keep the Lakes Great Inc

    EIN 882137736 · Headquarters: Lakewood, OH, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Keep Toledolucas County Beautiful Inc

    EIN 341483946 · Headquarters: TOLEDO, OH, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

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