New York · Nonprofit
OPEN SPACE INSTITUTE LAND TRUST INC
OPEN SPACE INSTITUTE LAND TRUST INC (New York) receives grants from 51 organizations whose IRS filings report $43,288,229 to it, the largest being THE WILLIAM PENN FOUNDATION ($8,896,175). 28 of them have funded it in more than one year.
- Revenue FY2024
- $73M
- Funders on record
- 51
- Grants received
- $43M
- Net assets
- $305M
What Open Space Institute Land Trust Inc does
Mission
Osilt supports osi's mission to protect land for clean drinking water, public recreation, healthy communities, and wildlife habitat; and to conserve intact forests and floodplains that capture and store carbon and protect against increasingly dangerous weather events.
As stated on its FY2024 Form 990.
Programs
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. Through facilitated projects, direct acquisition, and conservation easements, osi protects land of ecological, recreational, and climate and water quality protection significance with the goal of conveying it to public agencies and conservation partners as permanent additions to publicly accessible lands. In 2023, osilt protected 15,000 acres of land having a fair market value of $141 million.
$56,191,058 spentof which $49,751,514 as grants$7,441,751 earned by the program79% of program spendingParks and public policy: osilt 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, osilt works to improve accessibility to open space, promote community wellbeing, and create the next generation of conservationists. Osilt also provides support services for new city parks, the newly formed parks improvement group, that brings urban parks to neighborhoods.
$8,281,301 spentof which $1,751,949 as grants$1,151,685 earned by the program12% of program spendingGuided by science, with a focus on climate change, water protection, forests, and wildlife habitat, osilt works with foundations to design and administer re-grant programs, directing capital and low-cost loans to accelerate the rate and effectiveness of conservation. Osilt also offers catalyst grants and technical assistance to conservation partners and public agencies to incorporate climate and watershed science into conservation planning and works directly with communities to foster resilience to climate impacts. In 2023, osilt made 22 capital grants totaling $2.7 million, protecting 14,300 acres in five states with a fair market value of $20 million. Further, osilt directly approved 14 grants for conservation planning totaling $230,000.
$5,132,512 spentof which $3,502,377 as grants$1,182,617 earned by the program7% of program spendingStewardship: 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.
$1,462,836 spentof which $2,123 as grants2% of program spending
The 4 programs described on its FY2023 Form 990, listed largest first by expense. Program spending in total: $71,067,707.
The organization over time
Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2022 to 2023, from $332M to $421M (+27%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Government-grant reliance: 2017 2% · 2018 9% · 2019 0% · 2020 6% · 2021 18% · 2022 13% · 2023 29% · 2024 37%. Grants only. Government contracts and fees sit inside program revenue.
67% of OPEN SPACE INSTITUTE LAND TRUST INC’s revenue is contributions — about as donation-reliant as the typical peer (87% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 3 of the last 8 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
The chief executive listed changed between the FY2023 and FY2024 filings.
Who funds it, year by year
2017 → 2023: the base broadened from 8 funders to 19 funders, grant income rose $521k → $7.5M.
13 of 51 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 19% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
Left out of every figure on this page: $3.0M from one payer (the payer shares this organization's board, largest Open Space Institute Inc). These are real filings, and they are not money OPEN SPACE INSTITUTE LAND TRUST INC raised.
From the IRS filings of OPEN SPACE INSTITUTE LAND TRUST INC’s funders (the co-funder graph). Top 30 of 51 funders by total. Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How concentrated its funding is
OPEN SPACE INSTITUTE LAND TRUST INC has a broad base — no single funder exceeds 21% of grant income, and it takes 3 funders to reach half.
the vertical line marks half of all grant income — 3 funders to its left
Largest funder’s share by year: 2017 54% · 2018 42% · 2019 39% · 2020 50% · 2021 42% · 2022 30% · 2023 32% — diversifying over time.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
How long its funders stay
35% of OPEN SPACE INSTITUTE LAND TRUST INC's funders are still giving 3 years after their first grant; 55% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
OPEN SPACE INSTITUTE LAND TRUST INC draws 67% of its grant income from funders outside New York, across 15 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $8.2M arriving through sponsors registered in 8 states is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
OPEN SPACE INSTITUTE LAND TRUST INC runs a healthier operating margin than three-quarters of the 330 environment nonprofits its size.
this organization peer median middle 50% of peers· 330 environment nonprofits $10M–$100M, FY2024
Government funding OPEN SPACE INSTITUTE LAND TRUST INC receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $7.2M on record.
- Department of the Interior$7.0M
- Department of Agriculture$196k
- Environmental Protection Agency$40k
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like OPEN SPACE INSTITUTE LAND TRUST INC
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In New York
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
80% of spending goes to programs.
Governance
Footprint & structure
Files a return copy in 36 states
Part of a family of 4 related entities
- Osi Conservation Investments LLC · disregarded
- Tahawus Rail LLC · disregarded
- Open Space Institute Inc · exempt
- Strategic Conservation Partners LLC · partnership
Screen this organization
A dated, signed PDF of the compliance screen for OPEN SPACE INSTITUTE LAND TRUST INC: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds OPEN SPACE INSTITUTE LAND TRUST INC?
- OPEN SPACE INSTITUTE LAND TRUST INC (New York) receives grants from 51 organizations whose IRS filings report $43,288,229 to it, the largest being THE WILLIAM PENN FOUNDATION ($8,896,175). 28 of them have funded it in more than one year.
- How many funders does OPEN SPACE INSTITUTE LAND TRUST INC have?
- IRS filings report 51 organizations giving $43,288,229 in grants to OPEN SPACE INSTITUTE LAND TRUST INC, 28 of which have funded it in more than one year.
- Who is the largest funder of OPEN SPACE INSTITUTE LAND TRUST INC?
- THE WILLIAM PENN FOUNDATION is the largest funder on record, with $8,896,175 in grants. The full list of funders is on this page.
- How can an organization like OPEN SPACE INSTITUTE LAND TRUST INC find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in New York. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 51 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 22, 2026. What this page cannot tell you · view filing