Environment nonprofits in Wisconsin

Environment nonprofits in Wisconsin. Browse 1,084 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. Pelican Lake Association Inc

    EIN 900587454 · Headquarters: Pelican Lake, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  2. Pell Lake Lake Association Inc

    EIN 474404521 · Headquarters: Pell Lake, WI, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  3. Pella Fish Derby

    EIN 262857054 · Headquarters: Clintonville, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  4. Peninsula Pride Farms Inc

    EIN 812063033 · Headquarters: LUXEMBURG, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  5. Penokee Mountain Range Riders Inc

    EIN 611725236 · Headquarters: MELLEN, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  6. People Earth Water

    EIN 821073300 · Headquarters: MANITOWOC, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  7. Perch Lake Owners Association

    EIN 611695764 · Headquarters: Madison, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  8. Perkins Wildlife Area Inc

    EIN 391317057 · Headquarters: Mequon, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-PF

  9. Petenwell and Castle Rock Stewards

    EIN 271355024 · Headquarters: Appleton, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  10. Pewaukee River Partnership Inc

    EIN 421645678 · Headquarters: PEWAUKEE, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  11. Philadelphia Community Farm Inc

    EIN 391711164 · Headquarters: OSCEOLA, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  12. Pickerel Chain Lake Association

    EIN 462865581 · Headquarters: Townsend, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  13. Pike Lake Chain Lakes Association Inc

    EIN 391943467 · Headquarters: Fifield, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  14. Pishtaka Wildlife Foundation Inc

    EIN 811983983 · Headquarters: BURLINGTON, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  15. Planet of Awe Inc

    EIN 471953685 · Headquarters: Mindoro, WI, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  16. Platteville Community Arboretum Inc

    EIN 201303033 · Headquarters: PLATTEVILLE, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  17. Pleasant Lake Bay Environmental Group Inc

    EIN 821811496 · Headquarters: EAST TROY, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  18. Pleasant Lake Management District

    EIN 331099089 · Headquarters: COLOMA, WI, US · Environment · Latest available filing year: 2009 · Primary form: IRS Form 990-N

  19. Plum Lake Association

    EIN 391592381 · Headquarters: SAYNER, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  20. Plymouth Mill Pond Lake Association

    EIN 454248518 · Headquarters: PLYMOUTH, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  21. Popple Lake Association Inc

    EIN 393955053 · Headquarters: Chippewa Falls, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  22. Port Washington Garden Club

    EIN 810617578 · Headquarters: Port Washington, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  23. Post Lake Improvement Association Inc

    EIN 391464822 · Headquarters: Elcho, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  24. Powered Up Baraboo Inc

    EIN 842193033 · Headquarters: Baraboo, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  25. Poynette Area Garden Association Inc

    EIN 921371983 · Headquarters: POYNETTE, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  26. Prairie Families Enhancing Access to Shared Sustainable Traditions

    EIN 010648931 · Headquarters: Springbrook, WI, US · Environment · Latest available filing year: 2017 · Primary form: IRS Form 990-N

  27. Prairie Moraine Friends Inc

    EIN 844373964 · Headquarters: Verona, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  28. Preserve Our Rural Landscape

    EIN 263603923 · Headquarters: OREGON, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  29. Presque Isle Lake Assoication Incorporated

    EIN 851328716 · Headquarters: PRESQUE ISLE, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  30. Pri-ru-ta Resource Conservation And

    EIN 391451318 · Headquarters: MEDFORD, WI, USA · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990

  31. Prime Water Angler

    EIN 391987146 · Headquarters: Stevens Point, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  32. Pringle Nature Center Inc

    EIN 300293828 · Headquarters: BRISTOL, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  33. Property Owners Association Inc Barnes/eau Claire Lakes Area

    EIN 030389664 · Headquarters: Hayward, WI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  34. Prosperity Wisconsin Inc

    EIN 393773403 · Headquarters: JANESVILLE, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  35. Quality Deer Management Association

    EIN 900056102 · Headquarters: Bear Creek, WI, US · Environment · Latest available filing year: 2007 · Primary form: IRS Form 990-N

  36. Quarks

    EIN 272899173 · Headquarters: Madison, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  37. Racine County Conservation League Inc

    EIN 391945892 · Headquarters: Franksville, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  38. Racine Kenosha Master Gardener Association Inc

    EIN 872437003 · Headquarters: BRISTOL, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  39. Rainbow Lake Association Inc

    EIN 200295876 · Headquarters: Madison, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  40. Random Lake Association Inc

    EIN 391854025 · Headquarters: Random Lake, WI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  41. Recycled Hope Inc

    EIN 261918193 · Headquarters: WIND LAKE, WI, US · Environment · Latest available filing year: 2010 · Primary form: IRS Form 990-N

  42. Recycling Connections Corporation

    EIN 391420034 · Headquarters: STEVENS POINT, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  43. Recycling for Food Inc

    EIN 272024713 · Headquarters: Middleton, WI, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  44. Red Cedar Basin Monitoring Group

    EIN 452130635 · Headquarters: COLFAX, WI, US · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-N

  45. Red Cedar Lakes Association Inc

    EIN 391838208 · Headquarters: BIRCHWOOD, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  46. Reflo

    EIN 462396466 · Headquarters: MILWAUKEE, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  47. Regeneration Equity and Justice Inc

    EIN 854256632 · Headquarters: ASHLAND, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  48. Renaissance Soil

    EIN 824630761 · Headquarters: LA FARGE, WI, US · Environment · Latest available filing year: 2019 · Primary form: IRS Form 990-N

  49. Renew Wisconsin Inc

    EIN 391702164 · Headquarters: MADISON, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  50. Renewable World Foundation Inc

    EIN 392068107 · Headquarters: NESHKORO, WI, USA · Environment · Latest available filing year: 2018 · Primary form: IRS Form 990-EZ

  51. Restore the Lagoon

    EIN 464925465 · Headquarters: MILWAUKEE, WI, US · Environment · Latest available filing year: 2021 · Primary form: IRS Form 990-N

  52. Restoring Lands Inc

    EIN 391741288 · Headquarters: WEST BEND, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  53. Returned Peace Corps Volunteers for Environmental Action Inc

    EIN 870887242 · Headquarters: Madison, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  54. Revolvs

    EIN 331505508 · Headquarters: Waupaca, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  55. Rib Lake Pride Inc

    EIN 391787227 · Headquarters: Rib Lake, WI, US · Environment · Latest available filing year: 2012 · Primary form: IRS Form 990-N

  56. Rice Lake Association

    EIN 391830023 · Headquarters: Mercer, WI, US · Environment · Latest available filing year: 2023 · Primary form: IRS Form 990-N

  57. Ridgeway Nature & Garden Club Inc

    EIN 852790672 · Headquarters: Ridgeway, WI, US · Environment · Latest available filing year: 2020 · Primary form: IRS Form 990-N

  58. River Bend Nature Center Inc

    EIN 455347146 · Headquarters: RACINE, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  59. River Country Resource Conservation & Development Council Inc

    EIN 391569067 · Headquarters: Eau Claire, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  60. River Revitalization Foundation Inc

    EIN 391887400 · Headquarters: MILWAUKEE, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  61. River Valley Area Community Gardens

    EIN 812393691 · Headquarters: Spring Green, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  62. River Valley Raptors Inc

    EIN 822744071 · Headquarters: BUFFALO CITY, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  63. River Valley Trails Inc

    EIN 460484130 · Headquarters: HUDSON, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  64. Riveredge Nature Center Inc

    EIN 396108549 · Headquarters: NEWBURG, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  65. Riverside USA Inc

    EIN 391328115 · Headquarters: LA CROSSE, WI, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  66. Riverview Gardens Inc

    EIN 463208900 · Headquarters: APPLETON, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990

  67. Riverwood Nature Center Inc

    EIN 842467222 · Headquarters: STAR PRAIRIE, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  68. Robert W Monk Gardens Inc

    EIN 900181069 · Headquarters: WAUSAU, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  69. Robinson Creek Preservation Association Inc

    EIN 391781291 · Headquarters: BLACK RIVER FALLS, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  70. Rock County Multi-Use Trails Group Inc

    EIN 010668304 · Headquarters: JANESVILLE, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  71. Rock Falls Area Sportsmens Club Inc

    EIN 270061460 · Headquarters: MONDOVI, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  72. Rock Lake Improvement Association Inc

    EIN 391768513 · Headquarters: LAKE MILLS, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  73. Rock River Coalition Inc

    EIN 391845229 · Headquarters: Jefferson, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  74. Rock River Rescue

    EIN 272515475 · Headquarters: Watertown, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  75. Rock River-koshkonong Association Inc

    EIN 237225123 · Headquarters: Fort Atkinson, WI, US · Environment · Latest available filing year: 2011 · Primary form: IRS Form 990-N

  76. Rock the Green Inc

    EIN 273509969 · Headquarters: MILWAUKEE, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  77. Rooney Lake Association Inc

    EIN 391592108 · Headquarters: Spooner, WI, US · Environment · Latest available filing year: 2008 · Primary form: IRS Form 990-N

  78. Root River Council Inc

    EIN 451682226 · Headquarters: Mount Pleasant, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  79. Root-pike Watershed Initiative Network Inc

    EIN 200971618 · Headquarters: KENOSHA, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  80. Rooted

    EIN 391854762 · Headquarters: MADISON, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  81. Rooted For-us-tree

    EIN 331799492 · Headquarters: Stoughton, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  82. Roots and Branches Inc

    EIN 391672115 · Headquarters: WEST BEND, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-EZ

  83. Rost Lake Association Inc

    EIN 880805310 · Headquarters: Appleton, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  84. Rotary Botanical Gardens Inc

    EIN 391775351 · Headquarters: JANESVILLE, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  85. Rotary Club of West Bend Foundation Inc

    EIN 391512980 · Headquarters: WEST BEND, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  86. Round Lake Property Owners Assoc Inc

    EIN 391343440 · Headquarters: HAYWARD, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  87. Round Lake Sportsman Association Inc

    EIN 333830584 · Headquarters: Luck, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  88. Rush Lake Watershed Restoration Inc

    EIN 481284477 · Headquarters: Ripon, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  89. Rushes Wilderness Foundation Inc

    EIN 391775187 · Headquarters: Baileys Harbor, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  90. Rusinow Family Charitable Foundation

    EIN 392012636 · Headquarters: GRAFTON, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-PF

  91. Rusk County Waters Alliance

    EIN 020649145 · Headquarters: Ladysmith, WI, US · Environment · Latest available filing year: 2022 · Primary form: IRS Form 990-N

  92. Sagebrush Initiative Inc

    EIN 260316632 · Headquarters: Madison, WI, US · Environment · Latest available filing year: 2013 · Primary form: IRS Form 990-N

  93. Sandstone Flowage Association Inc

    EIN 431983008 · Headquarters: Crivitz, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  94. Sauk Prairie Conservation Alliance Inc

    EIN 020576977 · Headquarters: Baraboo, WI, USA · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-EZ

  95. Sauk Soil and Water Improvement Group Incorporated

    EIN 863664057 · Headquarters: Baraboo, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  96. Savanna Institute

    EIN 463004682 · Headquarters: MADISON, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  97. Save Our Unique Lands Inc Soul

    EIN 391970708 · Headquarters: La Farge, WI, US · Environment · Latest available filing year: 2025 · Primary form: IRS Form 990-N

  98. Save the Rainforest Inc

    EIN 391638330 · Headquarters: DODGEVILLE, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

  99. Sawyer County Snowmobile Alliance Inc

    EIN 391482562 · Headquarters: HAYWARD, WI, USA · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990

  100. School Section Sportsmans Associati On

    EIN 412933346 · Headquarters: PLYMOUTH, WI, US · Environment · Latest available filing year: 2024 · Primary form: IRS Form 990-N

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