At OSI, we protect land for people, for habitat, forever. Learn More About Who We Are
A Place for Life.
What We Protect
We protect land that supports the things we can’t live without — like clean water, climate protection, and healthy communities — and safeguard the places that make life worth living, like parks for recreation and plant and animal habitat.
How We Do It
Over the past 40 years, we’ve helped save millions of acres through land acquisition, funding, and research and advocacy. We’re also increasing access to the great outdoors through our support of grassroots efforts and park enhancement projects.
New & Noteworthy
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Featured e-News OSI Success Stories: Highlights from 2018 ConservationAs OSI looks back on the last year, we measure success not only in terms of the landscapes we touch, but also by the lives and communities that benefit from our land protection.This was another extraordinary year for OSI.
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Featured e-News Focus on Water - October 2018From Maine to South Carolina, these stories and news articles highlight OSI's work finding a recipe for clean water.
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What You Can Do
Donate to support OSI’s work
Become a part of our mission to safeguard at-risk places through your tax-deductible gift.
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