| JetBlue for Good
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| Jobos Bay National Estuarine Research Reserve
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| Kachemak Bay National Estuarine Research Reserve
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| Kake Tribal Corporation
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| Kako‘o ‘Ōiwi
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| Karuk – UC Berkeley Collaborative
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| Karuk Tribe
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| Kawerak, Inc.
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| Ketchikan Indian Community
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| Keystone Policy Center
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| Kinston, NC
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| Kiowa County Memorial Hospital
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| Kittitas County, Washington
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| Kivalina Relocation Planning Committee
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| Klamath Center for Conservation Research
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| Klamath-Salmon Media Collaborative
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| Klawock Cooperative Association
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| Koshland Science Museum
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| Kotlik Tribal Council
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| Kotzebue IRA
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| Kresge Foundation
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| Kuukpik Corporation | Alaska Native Village Corporation for Nuiqsut, Alaska
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| Lab X
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| Lake County Soil and Water Conservation District
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| Lake Sunapee Protective Association
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