New York · Nonprofit
PROSPECT PARK ALLIANCE INC
PROSPECT PARK ALLIANCE INC (New York) receives grants from 189 organizations whose IRS filings report $21,638,894 to it, the largest being LEON LEVY FOUNDATION ($2,575,000). 112 of them have funded it in more than one year.
- Revenue FY2025
- $30M
- Funders on record
- 189
- Grants received
- $22M
- Net assets
- $55M
What Prospect Park Alliance Inc does
Mission
In partnership with the City of New York and the community, the Prospect Park Alliance restores, develops, and operates Prospect Park for the enjoyment of all by caring for the natural environment, preserving historic design, and serving the public through facilities and programs.
As stated on its FY2025 Form 990.
Programs
Visitor Services and Events: Prospect Park receives more than 10 million visits each year and the Alliance serves visitors to the Park by offering a variety of fee-based recreational activities, public and private events, and food service operations. Recreational activities include a year-round tennis center and carousel rides in the summer. A variety of food and beverage services are available in the park, private events may be held at a number of different locations, and public events are coordinated throughout the year. The Alliance also sublicenses the LeFrak Center and works closely with the operator to provide a variety of year round recreational activities.
$6,003,021 spent$6,545,717 earned by the program41% of program spendingDesign and Construction: Prospect Park Alliance restores the landscapes and buildings within the Park while preserving the historic design. Projects go through a design and approval process, in partnership with the City of New York Department of Parks and Recreation, and are supervised during construction by Prospect Park Alliance. Projects designed by Prospect Park Alliance have won a number of prestigious awards.
$3,277,617 spent$1,855,716 earned by the program22% of program spendingField Operations: Prospect Park Alliance partners with the City of New York Department of Parks and Recreation (NYC Parks) in caring for the Park's natural environment. The Landscape Management Team monitors, restores and maintains 250 acres of natural areas, coordinating volunteers and the Alliance's Woodlands Youth Crew in this work. The Alliance also provides maintenance staff, supplementing the staff of NYC Parks in cleaning the Park as well as providing a crew to make repairs.
$3,726,259 spent$49,948 earned by the program25% of program spendingProspect Park Alliance offers educational programs teaching visitors about the natural world and its stewardship, helping to support the Alliance's mission to maintain the Park as a resource for New York City, especially those New Yorkers from underserved and low to mid-income neighborhoods. The Park's Audubon Center and Lefferts Historic House Museum provide important educational and cultural programming. Prospect Park also has a very active Volunteer Corps that is made up of community members who donate their time and energy and are critical to the ongoing maintenance and restoration of the Park.
$1,714,036 spent$6,402 earned by the program12% of program spending
The 4 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $14,720,933.
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 2024 to 2025, from $46M to $59M (+29%).
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 4% · 2018 6% · 2019 3% · 2020 14% · 2021 12% · 2022 2% · 2023 1% · 2024 3% · 2025 3%. Grants only. Government contracts and fees sit inside program revenue.
66% of PROSPECT PARK ALLIANCE INC’s revenue is contributions — more reliant on donations than three-quarters of its peers (11% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 1 of the last 9 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.
Board chair
Iris Weinshall
Chair/Board Member
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 34 funders to 98 funders, grant income rose $654k → $3.3M.
25 of 189 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 42% 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: $695k from 6 payers (the payer shares this organization's board, largest The New York and Presbyterian Hospital). These are real filings, and they are not money PROSPECT PARK ALLIANCE INC raised.
From the IRS filings of PROSPECT PARK ALLIANCE INC’s funders (the co-funder graph). Top 30 of 189 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
PROSPECT PARK ALLIANCE INC has a broad base — no single funder exceeds 12% of grant income, and it takes 7 funders to reach half.
the vertical line marks half of all grant income — 7 funders to its left
47% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund PROSPECT PARK ALLIANCE INC.
Largest funder’s share by year: 2017 16% · 2018 16% · 2019 14% · 2020 15% · 2021 18% · 2022 27% · 2023 14% — broadly stable.
“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
53% of PROSPECT PARK ALLIANCE INC's funders are still giving 3 years after their first grant; 59% 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
85% of PROSPECT PARK ALLIANCE INC's grant income comes from New York funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $9.0M arriving through sponsors registered in 15 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
PROSPECT PARK ALLIANCE INC runs a healthier operating margin than three-quarters of the 184 recreation & sports nonprofits its size.
this organization peer median middle 50% of peers· 184 recreation & sports nonprofits $10M–$100M, FY2025
Organizations like PROSPECT PARK ALLIANCE 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
82% of spending goes to programs.
Governance
Public support
70%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for PROSPECT PARK ALLIANCE 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 PROSPECT PARK ALLIANCE INC?
- PROSPECT PARK ALLIANCE INC (New York) receives grants from 189 organizations whose IRS filings report $21,638,894 to it, the largest being LEON LEVY FOUNDATION ($2,575,000). 112 of them have funded it in more than one year.
- How many funders does PROSPECT PARK ALLIANCE INC have?
- IRS filings report 189 organizations giving $21,638,894 in grants to PROSPECT PARK ALLIANCE INC, 112 of which have funded it in more than one year.
- Who is the largest funder of PROSPECT PARK ALLIANCE INC?
- LEON LEVY FOUNDATION is the largest funder on record, with $2,575,000 in grants. The full list of funders is on this page.
- How can an organization like PROSPECT PARK ALLIANCE 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.
Play a game about who funds Prospect Park Alliance →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), and the filings of 189 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