New York · Nonprofit
PFEIFFER NATURE CENTER & FOUNDATION INC
PFEIFFER NATURE CENTER & FOUNDATION INC (New York) receives grants from 2 organizations whose IRS filings report $14,300 to it, the largest being FT & ANNA C MANLEY MEM TW PFDN ($12,500). 2 of them have funded it in more than one year.
- Revenue FY2025
- $163k
- Funders on record
- 2
- Grants received
- $14k
- Net assets
- $794k
What Pfeiffer Nature Center & Foundation Inc does
Programs
Preserve the old growth forest
$25,300 spentProvide for scientific research
$11,746 spentPromote nature study programs
$28,010 spentFurther natural resource stewardship
$25,300 spent
The 4 programs described on its FY2024 Form 990-PF.
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 2021 to 2022, from $863k to $764k (−12%).
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.
Who funds it, year by year
2017 → 2020: the base held at 1 funder, grant income rose $250 → $1k.
From the IRS filings of PFEIFFER NATURE CENTER & FOUNDATION INC’s funders (the co-funder graph). 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
PFEIFFER NATURE CENTER & FOUNDATION INC leans on a few funders — its largest provides 87% of grant income and the top three 100%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
Largest funder’s share by year: 2017 100% · 2018 100% · 2019 100% · 2020 100% — 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.
Where its funders are
PFEIFFER NATURE CENTER & FOUNDATION INC draws 87% of its grant income from funders outside New York, across 2 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. 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
PFEIFFER NATURE CENTER & FOUNDATION INC's funding has concentrated — grant income rose while the number of funders held roughly flat.
this organization peer median middle 50% of peers· 2,433 environment nonprofits $100k–$1M, FY2025
Organizations like PFEIFFER NATURE CENTER & FOUNDATION 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.
Screen this organization
A dated, signed PDF of the compliance screen for PFEIFFER NATURE CENTER & FOUNDATION 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 PFEIFFER NATURE CENTER & FOUNDATION INC?
- PFEIFFER NATURE CENTER & FOUNDATION INC (New York) receives grants from 2 organizations whose IRS filings report $14,300 to it, the largest being FT & ANNA C MANLEY MEM TW PFDN ($12,500). 2 of them have funded it in more than one year.
- How many funders does PFEIFFER NATURE CENTER & FOUNDATION INC have?
- IRS filings report 2 organizations giving $14,300 in grants to PFEIFFER NATURE CENTER & FOUNDATION INC, 2 of which have funded it in more than one year.
- Who is the largest funder of PFEIFFER NATURE CENTER & FOUNDATION INC?
- FT & ANNA C MANLEY MEM TW PFDN is the largest funder on record, with $12,500 in grants. The full list of funders is on this page.
- How can an organization like PFEIFFER NATURE CENTER & FOUNDATION 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 Pfeiffer Nature Center & →
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 2 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 14, 2026. What this page cannot tell you · view filing