New York · Nonprofit
FLATBUSH CATS INC
FLATBUSH CATS INC (New York) receives grants from 62 organizations whose IRS filings report $7,175,645 to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($2,453,624). 35 of them have funded it in more than one year, and 52% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- Revenue FY2024
- $6.0M
- Funders on record
- 62
- Grants received
- $7.2M
- Net assets
- $7.9M
What Flatbush Cats Inc does
Mission
To promote, develop and implement sustainable solutions to address and prevent overcrowded animal shelters.
As stated on its FY2024 Form 990.
Programs
Veterinary care: serves both rescue volunteers and pet owners to make basic veterinary care accessible and affordable.
$1,949,511 spent$1,270,295 earned by the program80% of program spendingCommunity programs: provides training, support, and resources to make it easier to volunteer and get involved with trap-neuter-return programs.
$498,514 spent$51,765 earned by the program20% of program spending
The 2 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $2,448,025.
The organization over time
Each line starts at 100 in 2019, so what you read is the shape rather than the size: 150 means half as much again as 2019, 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 $5.1M to $8.1M (+58%).
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: 2023 0% · 2024 4%. Grants only. Government contracts and fees sit inside program revenue.
76% of FLATBUSH CATS INC’s revenue is contributions — more donation-reliant than the typical peer (74% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 0 of the last 6 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.
Chief executive
William Zweigart
Executive director
As listed on its FY2024 Form 990.
Who funds it, year by year
2018 → 2023: the base broadened from 1 funder to 35 funders, grant income rose $1k → $2.0M.
16 of 62 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 52% 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 FLATBUSH CATS INC’s funders (the co-funder graph). Top 30 of 62 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
FLATBUSH CATS INC leans on a few funders — its largest provides 34% of grant income and the top three 70%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
61% 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 FLATBUSH CATS INC.
Largest funder’s share by year: 2018 100% · 2020 74% · 2021 72% · 2022 46% · 2023 44% — 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
50% of FLATBUSH CATS INC's funders are still giving 3 years after their first grant; 56% 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
52% of FLATBUSH CATS INC's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $3.5M that is directly attributable, 67% of it comes from New York funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $3.7M arriving through sponsors registered in 12 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
FLATBUSH CATS INC runs a healthier operating margin than three-quarters of the 1,559 animals nonprofits its size.
this organization peer median middle 50% of peers· 1,559 animals nonprofits $1M–$10M, FY2024
Organizations like FLATBUSH CATS 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
79% of spending goes to programs.
Governance
Public support
80%
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 FLATBUSH CATS 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 FLATBUSH CATS INC?
- FLATBUSH CATS INC (New York) receives grants from 62 organizations whose IRS filings report $7,175,645 to it, the largest being FIDELITY INVESTMENTS CHARITABLE GIFT FUND ($2,453,624). 35 of them have funded it in more than one year, and 52% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
- How many funders does FLATBUSH CATS INC have?
- IRS filings report 62 organizations giving $7,175,645 in grants to FLATBUSH CATS INC, 35 of which have funded it in more than one year.
- Who is the largest funder of FLATBUSH CATS INC?
- FIDELITY INVESTMENTS CHARITABLE GIFT FUND is the largest funder on record, with $2,453,624 in grants. The full list of funders is on this page.
- How can an organization like FLATBUSH CATS 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 Flatbush Cats →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2019–2024), and the filings of 62 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