New York · Nonprofit
GUILDERHAVEN INC
GUILDERHAVEN INC (New York) receives grants from 6 organizations whose IRS filings report $54,948 to it, the largest being KEEHFUS FAMILY FOUNDATION INC ($45,000). 3 of them have funded it in more than one year.
- Revenue FY2025
- $51k
- Funders on record
- 6
- Grants received
- $55k
- Net assets
- $108k
What Guilderhaven Inc does
Mission
Helping to rescue and care for animals in need.
As stated on its FY2025 Form 990-EZ.
Programs
Provide veterinary care for stray and owned animals, including senior, disabled or low income citizens to provide help with food supplies, vet bills, vet appointments; Educate the community and publish an animal coloring book for children.
$58,645 spent98% of program spendingProvide veterinary care, food and supplies for wildlife
$741 spent1% of program spendingWork with cat colonies to provide support, spay/neuter and relocation services
$527 spent1% of program spending
The 3 programs described on its FY2025 Form 990-EZ. Program spending in total: $59,913.
The organization over time
Each line starts at 100 in 2021, so what you read is the shape rather than the size: 150 means half as much again as 2021, 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 2023 to 2024, from $21k to $120k (+462%).
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.
93% of GUILDERHAVEN INC’s revenue is contributions — more donation-reliant than the typical peer (65% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 1 of the last 5 reported years ran a deficit.
Leadership and staff
Board chair
Susan L Green
Chair
As listed on its FY2025 Form 990-EZ.
Who funds it, year by year
2017 → 2023: the base held at 2 funders, grant income fell $5k → $5k.
1 of 6 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 0% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of GUILDERHAVEN 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
GUILDERHAVEN INC leans on a few funders — its largest provides 82% of grant income and the top three 98%; 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 95% · 2018 57% · 2019 70% · 2020 99% · 2021 99% · 2022 99% · 2023 99% — growing more concentrated.
“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
96% of GUILDERHAVEN 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. $215 arriving through sponsors registered in 1 state 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
GUILDERHAVEN INC has grown faster than three-quarters of the 17,277 education nonprofits its size.
this organization peer median middle 50% of peers· 17,277 education nonprofits under $100k, FY2025
Organizations like GUILDERHAVEN 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.
Public support
98%
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 GUILDERHAVEN 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 GUILDERHAVEN INC?
- GUILDERHAVEN INC (New York) receives grants from 6 organizations whose IRS filings report $54,948 to it, the largest being KEEHFUS FAMILY FOUNDATION INC ($45,000). 3 of them have funded it in more than one year.
- How many funders does GUILDERHAVEN INC have?
- IRS filings report 6 organizations giving $54,948 in grants to GUILDERHAVEN INC, 3 of which have funded it in more than one year.
- Who is the largest funder of GUILDERHAVEN INC?
- KEEHFUS FAMILY FOUNDATION INC is the largest funder on record, with $45,000 in grants. The full list of funders is on this page.
- How can an organization like GUILDERHAVEN 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 Guilderhaven →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2021–2025), and the filings of 6 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