About Open Space Institute
The Open Space Institute (OSI) is a nonprofit land conservation organization founded in 1974 and headquartered in New York City. It protects land for clean drinking water, public recreation, healthy communities, wildlife habitat and climate protection across the eastern United States, having begun its work in the Hudson River Valley. Its methods include land acquisition, conservation easements, grants and loans to partner land trusts, park and trail improvements, and research and policy advocacy.
In New York State, OSI reports having conserved about 151,000 acres and helping add more than 10 percent of the state parks system's acreage. Its Conservation Capital program distributes loans and grants to partner land trusts, while its Conservation Communities program offers financial and legal oversight to grassroots projects. OSI lists offices in New York City, Albany and Beacon in the Hudson Valley, and it describes its staff as including project leaders, researchers, land stewards, attorneys and accountants.
| Type | Organization |
|---|---|
| New York offices | New York City, Albany, Beacon |
| Phone | 212-290-8200 |
| Website | openspaceinstitute.org |
| Registered NY attorneys | 5 |
Organization profile based on its official website and public sources (reviewed October 30, 2026). Attorney list from the New York State Unified Court System registration data. Not affiliated with Open Space Institute.
Registered attorneys
Robert Anderberg Currently registered Lars Kulleseid Currently registered Jeffrey Lejava Currently registered Bradford Burns Currently registered Thomas Kozak Currently registeredRegistration status can change at any time. Confirm any attorney's current status through the official New York Attorney Search.