Open Space Institute

The Open Space Institute is a national leader in land conservation and efforts to make parks and other protected land more welcoming for all. Since 1974, OSI has partnered in the protection of more than 2.5 million at-risk and environmentally sensitive acres in the eastern U.S. and Canada. OSI’s land protection promotes clean air and water, improves access to recreation, provides wildlife habitat, strengthens communities, and combats the devastating effects of extreme weather and flooding.