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. Indiana Organic Growers Inc

    EIN 351784818 · Headquarters: TIPTON, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  2. Indiana Parks Alliance Inc

    EIN 464571687 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  3. Indiana Phenology Co

    EIN 843167098 · Headquarters: Carmel, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Indiana Recycling Coalition Inc

    EIN 351806971 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Indiana Renewable Energy Association

    EIN 262014153 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  6. Indiana Sassafras Audubon Society

    EIN 237154289 · Headquarters: Bloomington, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Indiana Smallmouth Alliance INC

    EIN 991381213 · Headquarters: Indianapolis, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  8. Indiana Society of Professional Land Surveyors Inc

    EIN 237241102 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  9. Indiana Society of Professional Land Surveyors Inc

    EIN 462859078 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  10. Indiana Society of Professional Land Surveyors Inc

    EIN 463065406 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  11. Indiana Society of Professional Land Surveyors Inc

    EIN 463318427 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  12. Indiana Society of Professional Land Surveyors Inc

    EIN 463463183 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Indiana Society of Professional Land Surveyors Inc

    EIN 463540151 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  14. Indiana Society of Professional Land Surveyors Inc

    EIN 463571566 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Indiana Society of Professional Land Surveyors Inc

    EIN 463988439 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  16. Indiana Society of Professional Land Surveyors Inc

    EIN 464152417 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  17. Indiana Society of Professional Land Surveyors Inc

    EIN 464292116 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  18. Indiana Society of Professional Land Surveyors Inc

    EIN 464955187 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  19. Indiana Student Public Interest Research Group Inc

    EIN 352017779 · Headquarters: Bloomington, IN, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  20. Indiana Trails Community

    EIN 471598921 · Headquarters: Indianapolis, IN, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  21. Indiana Urban Forest Council Inc

    EIN 351870795 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-EZ

  22. Indiana Vector Control Association Plan Administrator

    EIN 464474510 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Indiana Water Environment Association

    EIN 310914016 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  24. Indianapolis Bonsai Club Inc

    EIN 351778704 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  25. Indianapolis Garden Club

    EIN 356043503 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  26. Indianapolis Hosta Society Inc

    EIN 351707483 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  27. Indianas Green Network for Innovative Technology and Enterpris

    EIN 208403400 · Headquarters: Fort Wayne, IN, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  28. Indianhead Lake Association Inc

    EIN 273920387 · Headquarters: Avon, IN, USA · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-EZ

  29. Indy Beta Inc

    EIN 825066419 · Headquarters: INDIANAPLIS, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Indy Flood Protection Partnership Inc

    EIN 820701379 · Headquarters: INDIANAPOLIS, IN, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  31. Inspiring Gardens Inc

    EIN 843238596 · Headquarters: HAMMOND, IN, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  32. International Assn of Heat & Frost

    EIN 356041330 · Headquarters: FORT WAYNE, IN, USA · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990

  33. Iroquois Conservation Club of Brook Inc

    EIN 352091780 · Headquarters: Brook, IN, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  34. Irrevocable Perpetual Care Fund for Riverside Cemetery

    EIN 311002903 · Headquarters: SPENCER, IN, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  35. Irvington Forestry Foundation Inc

    EIN 311070538 · Headquarters: Carmel, IN, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  36. Izaak Walton League America Chapter 106

    EIN 900520687 · Headquarters: alexandria, IN, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  37. Izaak Walton League of America Huntington County Chapter

    EIN 352041968 · Headquarters: HUNTINGTON, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  38. Izaak Walton League of America Inc

    EIN 356004410 · Headquarters: CLINTON, IN, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  39. Izaak Walton League of America Inc

    EIN 356042646 · Headquarters: Huntertown, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  40. Izaak Walton League of America Inc

    EIN 356244914 · Headquarters: Logansport, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  41. Jay County Conservation Club Inc

    EIN 350924409 · Headquarters: PORTLAND, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  42. Jefferson Street Park Inc

    EIN 824701831 · Headquarters: Nashville, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Johnson Co Garden Club

    EIN 274490316 · Headquarters: Franklin, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Jones Lake Road Shoreline Restorati

    EIN 920912890 · Headquarters: ROME CITY, IN, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-EZ

  45. Kankakee Wetlands Organic Gardens Inc

    EIN 461247536 · Headquarters: South Bend, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Keep Brown County Beautiful

    EIN 474739682 · Headquarters: NASHVILLE, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  47. Keep Evansville Beautiful Inc

    EIN 351449381 · Headquarters: EVANSVILLE, IN, USA · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990

  48. Keep Indianapolis Beautiful Inc

    EIN 311005792 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  49. Keep New Albany Clean & Green Inc

    EIN 274705186 · Headquarters: NEW ALBANY, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Keep Noblesville Beautiful Inc

    EIN 260388538 · Headquarters: Noblesville, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  51. Keep Stockwell Beautiful Inc

    EIN 371520362 · Headquarters: Stockwell, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  52. Ken Craig Community Garden Inc

    EIN 815120099 · Headquarters: Knox, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Kennedy Park Neighborhood Association Inc

    EIN 301037765 · Headquarters: SOUTH BEND, IN, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  54. Kings and Riches Equestrian Team Inc

    EIN 843448548 · Headquarters: Crown Point, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  55. Knobandvalleyaudubonsocietyofsouthernindiana

    EIN 352123667 · Headquarters: NEWALBANY, IN, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  56. Knobstone Hiking Trail Association Inc

    EIN 461752828 · Headquarters: Martinsville, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  57. Knox County Cisma

    EIN 824515941 · Headquarters: Vincennes, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  58. Kosciusko Runners' Association

    EIN 264481077 · Headquarters: Winona Lake, IN, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  59. Kosciusko Water & Woodland Invasive Partnership

    EIN 854244715 · Headquarters: North Webster, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  60. La Porte Area Lake Association Inc

    EIN 351596123 · Headquarters: LA PORTE, IN, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  61. Lafayette Orchid Society

    EIN 352066622 · Headquarters: Lafayette, IN, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  62. Lafayette Place Improvement Assoc

    EIN 351796651 · Headquarters: Fort Wayne, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. Lafayette Tree Fund Inc

    EIN 351896066 · Headquarters: Lafayette, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  64. Lagrange County Lakes Council Inc

    EIN 421559346 · Headquarters: Lagrange, IN, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  65. Lagrange County Tourism Foundation Inc

    EIN 334001099 · Headquarters: SHIPSHEWANA, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  66. Lake County Master Gardeners Association Inc

    EIN 273557621 · Headquarters: Crown Point, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Lake Freeman Ski Club Inc

    EIN 364972734 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  68. Lake George Conservancy Inc

    EIN 201253190 · Headquarters: FREMONT, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  69. Lake Heritage Parks Foundation Inc

    EIN 310932977 · Headquarters: CROWN POINT, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  70. Lake Maxinkuckee Association Inc

    EIN 350919825 · Headquarters: CULVER, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  71. Lake Maxinkuckee Conservancy Foundation Inc

    EIN 453606836 · Headquarters: Culver, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Lake Maxinkuckee Environmental Fund Inc

    EIN 311071826 · Headquarters: Culver, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  73. Lake Monroe Water Fund Inc

    EIN 861645499 · Headquarters: Bloomington, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. Lake of the Woods Mcclish Lake Property Owners Association

    EIN 920472146 · Headquarters: New Haven, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Lake Papakeechie Sustainability Initiative Inc

    EIN 820813484 · Headquarters: WAKARUSA, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  76. Lake Tippecanoe Property Owners Inc

    EIN 311105800 · Headquarters: LEESBURG, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  77. Land of Limestone Master Gardeners

    EIN 461401637 · Headquarters: Bedford, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  78. Land Stewards of Indianapolis Counsell

    EIN 843763813 · Headquarters: INDIANAPOLIS, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  79. Laporte County Conservation Trust Inc

    EIN 351983598 · Headquarters: Valparaiso, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  80. Laporte County Master Gardener Association

    EIN 352011341 · Headquarters: La Porte, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  81. Lawrence County Grass Roots Property Clean Up Project Co

    EIN 822454992 · Headquarters: Bedford, IN, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  82. Lawrence County Rock Club Inc

    EIN 800608061 · Headquarters: Loogootee, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  83. League of Kentucky Land Owners Inc

    EIN 611310649 · Headquarters: Lawrenceburg, IN, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  84. Learning Tree of Ohio County Inc

    EIN 352025884 · Headquarters: Rising Sun, IN, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  85. Legal Environmental Aid Foundation of Indiana Inc

    EIN 261258309 · Headquarters: VALPARAISO, IN, USA · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  86. Lime Lake Conservation Club

    EIN 832517307 · Headquarters: ANGOLA, IN, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  87. Lincoln Hills Resource Conservation and Development Area Inc

    EIN 356261818 · Headquarters: Tell City, IN, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  88. Lindas Unique Angels 2 Inc

    EIN 932308001 · Headquarters: Indianapolis, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  89. Little Lake Maxinkuckee Association

    EIN 471818459 · Headquarters: Culver, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  90. Little River Wetlands Project Inc

    EIN 351809569 · Headquarters: FORT WAYNE, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  91. Little Turkey Lake Community Inc

    EIN 934076196 · Headquarters: Stroh, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  92. Little Turkey Lake Conservation Club

    EIN 923249212 · Headquarters: Fort Wayne, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  93. Little Turtle Waterway Corporation

    EIN 351750612 · Headquarters: Logansport, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Live Free USA

    EIN 352269458 · Headquarters: Munster, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  95. Living in Family Environment Inc

    EIN 311121851 · Headquarters: Georgetown, IN, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  96. Loon Lake Property Owners Assoc

    EIN 351642067 · Headquarters: Columbia City, IN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  97. Lost Creek Township Conservation Club Inc

    EIN 351833648 · Headquarters: Seelyville, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Lost River Foundation Inc

    EIN 472854478 · Headquarters: West Baden Springs, IN, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  99. Lower Ohio River Waterkeeper Llc

    EIN 823430046 · Headquarters: New Albany, IN, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  100. Madison County Master Gardener Association Inc

    EIN 352102444 · Headquarters: Anderson, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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