EIN 13-3028060

Open Space Institute Land Trust (OSI)

IRS 501(c) type
Num. employees
Year formed
Most recent tax filings
Open Space Institute protects scenic, natural, and historic landscapes through land acquisition, conservation easements, regional loan programs, fiscal sponsorship, creative partnerships, and analytical research.
Also known as...
Open Space Conservancy
Total revenues
Total expenses
Total assets
Num. employees

Program areas at OSI

Land protection: smart, strategic Land conservation strengthens communities, ensures access to drinking water resources, provides recreational resources, curbs climate change, and protects habitats. Working throughout the eastern united states, with project concentrations in new york, new jersey, south carolina, and Georgia, osi acquires Land of ecological, recreational, and climate protection significance with the goal of conveying it to public agencies and conservation partners as permanent additions to publicly accessible lands. In 2022, osilt protected 8.517 acres of Land having a fair market value of $30.8 million.
Parks and policy: osi is making nature and the outdoors more welcoming and enjoyable to all. Through park improvements, the creation of new trails and greenways public policy research, and advocacy for greater federal, state, and national investments in public lands, osi works to improve accessibility and access to Open Space, promote community wellbeing, and create the next generation of conservationists. Osi also provides support services for the newly formed parks improvement group new city parks, which aims to bring urban parks to neighborhoods.
Conservation capital: guided by science, with a focus on climate change, water protection, forests, and wildlife habitat, osilt works with foundations to design and administer capital re-grant programs, directing capital and low-cost loans to accelerate the rate and effectiveness of conservation. Osilt also offers catalyst grants to localities and their conservation partners to incorporate strategic Land protection into local planning efforts. In 2022, osilt made 23 capital grants totaling $3,443,564, protecting 21,336 acres in seven states with a fair market value of $28,858,336. Further, osilt directly approved ten grants for conservation planning totaling $126,279.
Stewardship: through its stewardship work, osi monitors and enforces conservation easements, oversees the management of properties conserved with third-party partners, and provides interim management for properties that will be conveyed to public agencies or other conservation partners.

Grants made by OSI

GranteeGrant descriptionAmount
The Nature ConservancyDelaware River Watershed and Appalachian Landscape Protection$1,502,433
Tenngreen Land ConservancyAppalachian Landscape Protection$541,250
Northeast Wilderness Trust CorporationAppalachian Landscape Protection$425,000
...and 33 more grants made totalling $4,031,183

Who funds Open Space Institute Land Trust (OSI)

Grants from foundations and other nonprofits
William Penn FoundationPhase 2 Drwi Land Protection Capital Re-Grant Fund$2,702,140
Doris Duke Charitable FoundationTo Protect Climate-Resilient Lands Along the Appalachian Mountain Corridor and Accelerate Landscape Conservation in the Eastern United States As A Nationally Important Natural Climate Solution$1,500,000
Darla Moore and Richard Rainwater FoundationGeneral Funding To Protect Scenic, Natural and Historic Landscapes for Public Enjoyment$1,350,000
...and 26 more grants received totalling $12,300,757

Personnel at OSI

Christopher J EllimanPresident and Chief Executive Officer$0
Garraud EtienneChief Operation Officer$0
Alice GleasonChief Financial Officer$0
Tally BlumbergSenior Vice President , Chief Strategy and External A$0
Eileen LarabeeSenior Vice President for Communications$0
...and 44 more key personnel

Financials for OSI

RevenuesFYE 12/2022
Total grants, contributions, etc.$28,710,013
Program services$5,696,832
Investment income and dividends$1,244,216
Tax-exempt bond proceeds$0
Royalty revenue$0
Net rental income$89,477
Net gain from sale of non-inventory assets$18,075,355
Net income from fundraising events$0
Net income from gaming activities$0
Net income from sales of inventory$0
Miscellaneous revenues$0
Total revenues$53,815,893

Form 990s for OSI

Fiscal year endingDate received by IRSFormPDF link
2022-122023-10-16990View PDF
2021-122022-11-15990View PDF
2020-122021-11-09990View PDF
2019-122021-02-22990View PDF
2018-122020-01-13990View PDF
...and 9 more Form 990s
Data update history
April 23, 2024
Used new vendors
Identified 1 new vendor, including
February 4, 2024
Received grants
Identified 20 new grant, including a grant for $2,702,140 from William Penn Foundation
December 5, 2023
Posted financials
Added Form 990 for fiscal year 2022
December 4, 2023
Updated personnel
Identified 6 new personnel
November 26, 2023
Received grants
Identified 2 new grant, including a grant for $332,000 from Riverview Foundation
Nonprofit Types
Social advocacy organizationsEnvironmental organizationsCharities
Land and water conservationEnvironment
Political advocacyOperates donor advised fundsProvides grantsLobbyingConservation easementOperates internationallyNational levelReceives government fundingEndowed supportTax deductible donationsNo full-time employeesFiscal sponsor
General information
1350 Broadway 201
New York, NY 10018
Metro area
New York-Newark-Jersey City, NY-NJ-PA
New York County, NY
Website URL
(212) 290-8200
Facebook page
Twitter profile
IRS details
Fiscal year end
Taxreturn type
Form 990
Year formed
Eligible to receive tax-deductible contributions (Pub 78)
NTEE code, primary
C34: Land Resources Conservation
NAICS code, primary
813312: Environment, Conservation, and Wildlife Organizations
Parent/child status
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