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. Silicon Valley Youth Climate Action

    EIN 274379516 · Headquarters: Cupertino, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  2. Silos and Smokestacks National Heritage Area Foundation

    EIN 274844288 · Headquarters: Independence, IA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  3. Silvan Foundation Corporation

    EIN 872071969 · Headquarters: Naples, FL, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  4. Silver Bay Haven Club Inc

    EIN 934611667 · Headquarters: LAKE SHORE, MN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  5. Silver Bee Community Garden

    EIN 464021731 · Headquarters: Kellogg, ID, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. Silver City Recycles

    EIN 845142812 · Headquarters: Silver City, NM, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Silver Creek Preserve

    EIN 943387047 · Headquarters: SCOTTSDALE, AZ, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  8. Silver Gate Conservation District Inc

    EIN 202076983 · Headquarters: ORLANDO, FL, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  9. Silver Lake - Kosciusko Co - Conservation Foundation

    EIN 843574560 · Headquarters: AVON, IN, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  10. Silver Lake Association

    EIN 010606618 · Headquarters: Cumberland, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Silver Lake Association of Madison Nh

    EIN 455319564 · Headquarters: Silver Lake, NH, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  12. Silver Lake Camp Owners Assoc Charter 19480006Nd

    EIN 900591846 · Headquarters: Roxbury, ME, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  13. Silver Lake Forward

    EIN 811227432 · Headquarters: Los Angeles, CA, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  14. Silver Lake Improvement Association

    EIN 471966969 · Headquarters: Traverse City, MI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  15. Silver Lake Improvement Association Inc

    EIN 161724385 · Headquarters: North Saint Paul, MN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  16. Silver Lake Improvement Project - Palo Alto

    EIN 271273168 · Headquarters: RUTHVEN, IA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  17. Silver Lake Preservation Association Inc

    EIN 461315497 · Headquarters: Laona, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  18. Silver Lake Reservoirs Conservancy

    EIN 954199639 · Headquarters: LOS ANGELES, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  19. Silver Lake Residents Association

    EIN 333625144 · Headquarters: St Anthony, MN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Silver River Keeper Foundation Inc

    EIN 383895769 · Headquarters: OCALA, FL, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  21. Silver Sierra Foundation

    EIN 884277622 · Headquarters: Waitsburg, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  22. Silver Spring Garden Club

    EIN 526041979 · Headquarters: Silver Spring, MD, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  23. Silver Springs Alliance Inc

    EIN 900801723 · Headquarters: Ocala, FL, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  24. Silver Springs Homeowners Association

    EIN 680277454 · Headquarters: SACRAMENTO, CA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  25. Silver Springs Professional Dive Team

    EIN 861315668 · Headquarters: Ocala, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Silverado Trail Wineries Association

    EIN 680280931 · Headquarters: Napa, CA, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  27. Silverton Patchwork Community Garden Inc

    EIN 300690888 · Headquarters: Silverton, OR, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  28. Silvery Colorado Rock Club

    EIN 866054322 · Headquarters: BULLHEAD CITY, AZ, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  29. Silvis Garden Club Inc

    EIN 364476308 · Headquarters: SILVIS, IL, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  30. Silvix Resources

    EIN 931527053 · Headquarters: PORTLAND, OR, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  31. Silvoculture Inc

    EIN 843382808 · Headquarters: FREDERICK, MD, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  32. Sima Impact Foundation

    EIN 873148557 · Headquarters: New York, NY, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  33. Simi at the Garden Inc

    EIN 452624846 · Headquarters: SIMI VALLEY, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  34. Simon Kenton Pathfinders

    EIN 311575844 · Headquarters: Urbana, OH, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. Simonton Lake Area Homeowners Association Inc

    EIN 262923842 · Headquarters: ELKHART, IN, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  36. Simonton Lake Preservation Trust Inc

    EIN 462916487 · Headquarters: Elkhart, IN, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  37. Simple Choice Technology Removal Nfp

    EIN 824250711 · Headquarters: Carpentersville, IL, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  38. Simple Living Institute Inc

    EIN 820551617 · Headquarters: ORLANDO, FL, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  39. Simply Bee Conservation

    EIN 874487650 · Headquarters: Lyons, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  40. Simply Natural

    EIN 873390908 · Headquarters: Boulevard, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  41. Simply Projects Louisiana

    EIN 842973998 · Headquarters: BOSSIER CITY, LA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  42. Simply Sustained

    EIN 472302336 · Headquarters: Washington DC, DC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  43. Simply Sweet Ls Inc

    EIN 934762837 · Headquarters: Clearwater, FL, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  44. Simpsonville Garden Club

    EIN 372134955 · Headquarters: Simpsonville, SC, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  45. Simsboro Aquifer Water Defense Fund Inc

    EIN 812991757 · Headquarters: ELGIN, TX, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  46. Simsbury Horticultural Society

    EIN 843585743 · Headquarters: Simsbury, CT, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  47. Simsbury Land Trust Inc

    EIN 060958573 · Headquarters: SIMSBURY, CT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  48. Simsbury Pollinator Pathway Inc

    EIN 863147889 · Headquarters: Simsbury, CT, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  49. Singing Earth Foundation

    EIN 854216345 · Headquarters: Salt Lake City, UT, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Singing Earth Sanctuary Inc

    EIN 582608981 · Headquarters: Asheville, NC, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  51. Singletrack Coalition

    EIN 452613120 · Headquarters: Raleigh, NC, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  52. Sinkable Co

    EIN 862308998 · Headquarters: Claremont, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  53. Sinks Canyon Wild

    EIN 873684387 · Headquarters: Lander, WY, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  54. Sinnemahonig Watershed Association

    EIN 861071499 · Headquarters: EMPORIUM, PA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  55. Sino-american Clean Energy Research Association

    EIN 473727097 · Headquarters: West Roxbury, MA, USA · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-EZ

  56. Sioux City Garden Club

    EIN 421219280 · Headquarters: Sioux City, IA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  57. Sioux County Conservation Foundation

    EIN 465642613 · Headquarters: HAWARDEN, IA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  58. Sioux Empire Gem & Mineral Society

    EIN 460354495 · Headquarters: Canton, SD, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  59. Sioux Rivers Resource Conservation and Development Inc

    EIN 421475128 · Headquarters: SGT BLUFF, IA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  60. Sippi Girls Foundation

    EIN 884122901 · Headquarters: BRANDON, MS, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  61. Sippican Lands Trust Inc

    EIN 222795446 · Headquarters: MARION, MA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  62. Sipson Island Trust Inc

    EIN 842731899 · Headquarters: SOUTH ORLEANS, MA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  63. Siseebakwet Lake Association

    EIN 411471948 · Headquarters: Cohasset, MN, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  64. Sisk-a-dee Environmental Organization

    EIN 841567738 · Headquarters: GUNNISON, CO, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  65. Siskin Ecological Adventures

    EIN 061780971 · Headquarters: East Charleston, VT, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  66. Siskiyou County Beekeepers Association

    EIN 821554724 · Headquarters: Yreka, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  67. Siskiyou District Garden Clubs

    EIN 994275366 · Headquarters: Jacksonville, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  68. Siskiyou Field Institute

    EIN 201285400 · Headquarters: SELMA, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Siskiyou Gardens Parks and Greenways Association

    EIN 263547599 · Headquarters: Yreka, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  70. Siskiyou Land Conservancy

    EIN 721568115 · Headquarters: Arcata, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  71. Siskiyou Mountain Club

    EIN 273418419 · Headquarters: ASHLAND, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  72. Siskiyou Regional Education Project

    EIN 930854804 · Headquarters: GRANTS PASS, OR, USA · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-EZ

  73. Siskiyous Klamath Interpretive Foundation

    EIN 300096015 · Headquarters: Yreka, CA, US · Environment · Latest available filing year: 2016 · Primary form: IRS Form 990-N

  74. Siskyou Coast Orchid Club

    EIN 200747586 · Headquarters: Brookings, OR, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  75. Sister Blandina Gardens

    EIN 850824884 · Headquarters: Colorado Springs, CO, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  76. Sister Lakes Michigan Land Conservation

    EIN 300100323 · Headquarters: Rockford, IL, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  77. Sister's Journey Inc

    EIN 200664996 · Headquarters: North Haven, CT, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  78. Sisters Community Garden

    EIN 465750038 · Headquarters: Sisters, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Sisters Garden Club

    EIN 930972242 · Headquarters: SISTERS, OR, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  80. Sisters of New Gaia

    EIN 463485256 · Headquarters: Sedona, AZ, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  81. Sitka Conservation Society

    EIN 920096633 · Headquarters: SITKA, AK, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  82. Sitka Sound Science Center

    EIN 261253086 · Headquarters: Sitka, AK, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  83. Siuslaw Watershed Council Inc

    EIN 931234456 · Headquarters: MAPLETON, OR, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  84. Six Basins Project Inc

    EIN 821032179 · Headquarters: OURAY, CO, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  85. Six Foot Creations Foundation

    EIN 882924416 · Headquarters: Las Vegas, NV, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  86. Six Mile Lake Association

    EIN 300383580 · Headquarters: Central Lake, MI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  87. Six Rivers Field Institute

    EIN 451500276 · Headquarters: Bayside, CA, US · Environment · Latest available filing year: 2014 · Primary form: IRS Form 990-N

  88. Six Rivers Initiative

    EIN 843835246 · Headquarters: Ferndale, CA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Six Rivers Land Conservancy Fka Six Rivers Regional Land Conservancy

    EIN 383189562 · Headquarters: ROCHESTER, MI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  90. Sixteen Thirty Fund

    EIN 264486735 · Headquarters: WASHINGTON, DC, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  91. Sjcog Inc

    EIN 680453810 · Headquarters: STOCKTON, CA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  92. SJVWater

    EIN 832646098 · Headquarters: Bakersfield, CA, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  93. Skaggs Island Foundation

    EIN 680311882 · Headquarters: Rohnert Park, CA, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  94. Skagit Conservation Education Alliance

    EIN 753003436 · Headquarters: BURLINGTON, WA, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  95. Skagit County K9 Search and Rescue Sck9sar

    EIN 841922819 · Headquarters: Mount Vernon, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  96. Skagit County Master Gardener Foundation

    EIN 911708135 · Headquarters: Burlington, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  97. Skagit Land Trust

    EIN 911533402 · Headquarters: MOUNT VERNON, WA, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  98. Skagit River Alliance

    EIN 834626138 · Headquarters: MARBLEMOUNT, WA, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  99. Skagit River Salmon Festival

    EIN 455490813 · Headquarters: Mount Vernon, WA, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  100. Skagit Valley Clean Energy Alliance

    EIN 990983551 · Headquarters: LaConner, WA, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

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