Environment nonprofits in Indiana

Environment nonprofits in Indiana. Browse 650 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. Garden Club of Indiana

    EIN 274636850 · Headquarters: Newburgh, IN, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  2. Garden Club of Indiana

    EIN 274769172 · Headquarters: PENDLETON, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Garden Club of Indiana

    EIN 300367511 · Headquarters: Merrillille, IN, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  4. Garden Club of Indiana

    EIN 320330275 · Headquarters: MUNSTER, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  5. Garden Club of Indiana

    EIN 320330611 · Headquarters: Carmel, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Garden Club of Indiana

    EIN 320330733 · Headquarters: Seymour, IN, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  7. Garden Club of Indiana

    EIN 351389725 · Headquarters: Valparaiso, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Garden Club of Indiana

    EIN 351893626 · Headquarters: Seymour, IN, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  9. Garden Club of Indiana

    EIN 351898986 · Headquarters: INDIANAPOLIS, IN, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  10. Garden Club of Indiana

    EIN 352130376 · Headquarters: Columbus, IN, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  11. Garden Club of Indiana

    EIN 352148974 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Garden Club of Indiana

    EIN 352272418 · Headquarters: LaPorte, IN, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  13. Garden Club of Indiana

    EIN 383825384 · Headquarters: Marion, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Garden Club of Indiana

    EIN 451436665 · Headquarters: Shelbyville, IN, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  15. Garden Club of Indiana

    EIN 451580660 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Garden Club of Indiana

    EIN 451597419 · Headquarters: Columbus, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Garden Club of Indiana

    EIN 562678677 · Headquarters: Carmel, IN, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  18. Garden Club of Indiana

    EIN 611626210 · Headquarters: Pittsboro, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Garden Club of Indiana

    EIN 611629754 · Headquarters: Elkhart, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Garden Club of Indiana

    EIN 611639074 · Headquarters: Winamac, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  21. Garden Club of Indiana

    EIN 711019781 · Headquarters: Petersburg, IN, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  22. Garden Club of Indiana

    EIN 800663844 · Headquarters: Orleans, IN, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  23. Garden Club of Indiana

    EIN 800663869 · Headquarters: Columbus, IN, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  24. Garden Club of Indiana

    EIN 800675640 · Headquarters: Newburgh, IN, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  25. Garden Club of Indiana

    EIN 900591258 · Headquarters: Peru, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Garden Club of Indiana

    EIN 900635002 · Headquarters: Dyer, IN, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  27. Garden Club of Indiana

    EIN 900635373 · Headquarters: Greenfield, IN, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  28. Garden Club of Indiana

    EIN 900651435 · Headquarters: GREENSBURG, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Gardeners of America Inc

    EIN 900670503 · Headquarters: Fort Wayne, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Gary Advocates for Responsible Development Inc

    EIN 922995413 · Headquarters: GARY, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  31. Geist Lake Coalition

    EIN 522379850 · Headquarters: FISHERS, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  32. George Rogers Clark Land Trust Inc

    EIN 371625140 · Headquarters: Charlestown, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Gnaw Bone Camp Nature Preserve Inc

    EIN 320079572 · Headquarters: Nashville, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  34. Grant Research & Nonprofit Training Srvs Inc D/b/a South Shore Grants Center

    EIN 432005141 · Headquarters: MERRILLVILLE, IN, USA · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  35. Grassy Creek Watershed Foundation Inc

    EIN 261646045 · Headquarters: North Webster, IN, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  36. Graybrook Conservation Assn Inc

    EIN 356050150 · Headquarters: Spencer, IN, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  37. Great Lakes Habitat and Reforestation Alliance

    EIN 393727899 · Headquarters: New Haven, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Greater Indiana Clean Cities

    EIN 352141203 · Headquarters: Indianapolis, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  39. Greater Olin Lake Conservancy Incorporated

    EIN 822978396 · Headquarters: Wolcottville, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Greater Terre Haute Chamber of Commerce

    EIN 311205429 · Headquarters: Terre Haute, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  41. Greater Wabash River Resource Conservation & Development Corp

    EIN 043680943 · Headquarters: Frankfort, IN, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  42. Green Abilities Inc

    EIN 273328835 · Headquarters: ST JOHN, IN, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  43. Green Broadripple Inc

    EIN 261989336 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  44. Green Thumb Garden Club of Princeton Indiana

    EIN 351952695 · Headquarters: Princeton, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Greenfield Conservation Club Inc

    EIN 833863331 · Headquarters: GREENFIELD, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  46. Greenways Foundation Inc

    EIN 351872985 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  47. Griffith Izaak Walton League of America

    EIN 356047836 · Headquarters: Griffith, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  48. Grovertown Community Conservation Club

    EIN 351495267 · Headquarters: GROVERTOWN, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Growth Foundation Inc

    EIN 814763735 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  50. Guardians of the Garden Master Gardeners Inc

    EIN 832236479 · Headquarters: Washington, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Hamilton County Urban Conservation Association Inc

    EIN 204512497 · Headquarters: FORTVILLE, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Hamilton Township Conservation Club Inc

    EIN 352032943 · Headquarters: Seymour, IN, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  53. Hancock County Herb Society Inc

    EIN 912095936 · Headquarters: GREENFIELD, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Hancock County Master Gardener Association Inc

    EIN 810923303 · Headquarters: Greenfield, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Harrison County Native Habitat Alliance Inc

    EIN 854236907 · Headquarters: Corydon, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  56. Hartman Arboretum Inc

    EIN 352140627 · Headquarters: EVANSVILLE, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  57. Heartwood Incorporated

    EIN 351846483 · Headquarters: PAOLI, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  58. Henderson Helping Hands Inc

    EIN 881328008 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  59. Herb Society of Central Indiana- Unit Herb Society of America Inc

    EIN 351998457 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  60. Hereford Lake Conservation Society

    EIN 812525073 · Headquarters: Madison, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Highland Firefighters Association

    EIN 883001684 · Headquarters: highland, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. Holistic Endeavors Inc

    EIN 883249586 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  63. Holliday Park Foundation Inc

    EIN 351816648 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  64. Homes by Grace Development Llc

    EIN 934806279 · Headquarters: Gary, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Hoosier Conservancy

    EIN 393283810 · Headquarters: Angola, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Hoosier Environmental Council Inc

    EIN 351576694 · Headquarters: Indianapolis, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  67. Hoosier Heartland Resource Conservation and Development Counc

    EIN 351595715 · Headquarters: Greenwood, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Hoosier Hikers Council Inc

    EIN 351947457 · Headquarters: Martinsville, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  69. Hoosier Mushroom Society Incorporated

    EIN 462213945 · Headquarters: Marion, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  70. Hoosier Organic Marketing Education Inc

    EIN 351904351 · Headquarters: Bloomington, IN, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  71. Hoosier Releaf Inc

    EIN 351867687 · Headquarters: Fort Wayne, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Hudson Lake Conservation Association Inc

    EIN 262891748 · Headquarters: NEW CARLISLE, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Human Energy Initiatives Inc

    EIN 452914608 · Headquarters: ZIONSVILLE, IN, USA · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-EZ

  74. Huntington County Master Gardeners Inc

    EIN 263475386 · Headquarters: Huntington, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Indian Creek Trail Inc

    EIN 352081216 · Headquarters: Corydon, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  76. Indiana Association of Professional Soil Classifiers Inc

    EIN 352129264 · Headquarters: Hanover, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  77. Indiana Association of Soil and Water Conservation

    EIN 237029064 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  78. Indiana Audubon Society

    EIN 356023489 · Headquarters: CONNERSVILLE, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  79. Indiana Cave Survey Inc

    EIN 351815660 · Headquarters: INDIANAPOLIS, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Indiana Chapter of the Air & Waste Management Association Inc

    EIN 352156222 · Headquarters: Martinsville, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Indiana Chapter of the American Chestnut Foundation Inc

    EIN 300227734 · Headquarters: Culver, IN, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  82. Indiana Climbers Coalition Inc

    EIN 871568009 · Headquarters: Bloomington, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. Indiana Composting Council Inc

    EIN 333273937 · Headquarters: Carmel, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  84. Indiana Conservation Fund Inc

    EIN 920665274 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Indiana Conservative Alliance for Energy Inc

    EIN 851216672 · Headquarters: CARMEL, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Indiana Daylily-iris Society Inc

    EIN 351649360 · Headquarters: Greenwood, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Indiana Dry Cleaning & Laundry Association Inc

    EIN 356042417 · Headquarters: RICHMOND, IN, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  88. Indiana Dunes Environmental Learning Center Inc

    EIN 352031658 · Headquarters: CHESTERTON, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  89. Indiana Energy Independence Fund

    EIN 922726864 · Headquarters: INDIANAPOLIS, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Indiana Forest Alliance Inc

    EIN 352059195 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Indiana Forestry & Woodland Owners Association Inc

    EIN 351415924 · Headquarters: West Lafayette, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  92. Indiana Forum for Environmental Safety Inc

    EIN 351973504 · Headquarters: PLAINFIELD, IN, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  93. Indiana Fury Fastpitch Corporation

    EIN 393800794 · Headquarters: Camby, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Indiana Horticultural Corporation

    EIN 351687486 · Headquarters: West Lafayette, IN, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  95. Indiana Karst Conservancy

    EIN 311185033 · Headquarters: Indianapolis, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  96. Indiana Koi and Water Garden Club Inc

    EIN 481270646 · Headquarters: PENDLETON, IN, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  97. Indiana Lakes Management Society Inc

    EIN 351855895 · Headquarters: Angola, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Indiana Land Protection Alliance

    EIN 352065591 · Headquarters: Indianapolis, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. Indiana National Road Association Inc

    EIN 351948700 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  100. Indiana Native Plant Society Inc

    EIN 352047564 · Headquarters: Indianapolis, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

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