New York · Nonprofit
PARASITES WITHOUT BORDERS INC
PARASITES WITHOUT BORDERS INC (New York) receives grants from 21 organizations whose IRS filings report $836,581 to it, the largest being THE DONALD AND BARBARA ZUCKER FAMILY FOUNDATION ($596,000). 9 of them have funded it in more than one year.
- Revenue FY2025
- $694k
- Funders on record
- 21
- Grants received
- $837k
- Net assets
- $663k
What Parasites Without Borders Inc does
Mission
To provide a comprehensive, advanced educational resource and disseminator of basic and clinical information dealing with all aspects of the global problem of parasitic diseases that adversely affects peoples around the world."getting knowledge to the people and places that need it the most."
As stated on its FY2025 Form 990.
Program
The support given by pwb enabled floating doctors to treat parasitic infections into thousands of people and animals in 24 communities over 10,000 square miles as well as provide anthelmintic preventive care in every patient we visited. Additionally, pwb supported health education programming covering a wide variety of individual and public health issues, including in-community sanitation discussions following w.a.s.h. Guidelines and multi-day conferences for local midwives and healthcare workers.supported the astmh mission of reducing the worldwide burden of tropical infectious diseases and improving global health. The american society of tropical medicine and hygiene, founded in 1903, is the largest international scientific organization of experts dedicated to reducing the worldwide burden of tropical infectious diseases and improving global health. We accomplish this through generating and sharing scientific evidence, informing health policies and practices, fostering career development, recognizing excellence, and advocating for investment in tropical medicine/global health research. Astmh has a core membership of 3,000 and monthly newsletter subscribers of 17,000+.pwb…
$224,611 spentof which $101,324 as grants100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $224,611.
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 $364k to $750k (+106%).
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.
100% of PARASITES WITHOUT BORDERS INC’s revenue is contributions — more reliant on donations than three-quarters of its peers (82% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 2 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.
Who funds it, year by year
2020 → 2023: the base broadened from 3 funders to 10 funders, grant income rose $2k → $438k.
6 of 21 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 24% 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 PARASITES WITHOUT BORDERS INC’s funders (the co-funder graph). Top 20 of 21 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
PARASITES WITHOUT BORDERS INC leans on a few funders — its largest provides 71% of grant income and the top three 90%; 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: 2020 86% · 2021 90% · 2022 43% · 2023 88% — 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
50% of PARASITES WITHOUT BORDERS INC's funders are still giving 2 years after their first grant; 43% 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
95% of PARASITES WITHOUT BORDERS 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. $205k arriving through sponsors registered in 5 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
PARASITES WITHOUT BORDERS INC runs a healthier operating margin than three-quarters of the 7,883 health nonprofits its size.
this organization peer median middle 50% of peers· 7,883 health nonprofits $100k–$1M, FY2025
Organizations like PARASITES WITHOUT BORDERS 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
91% of spending goes to programs.
Governance
Public support
52%
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 PARASITES WITHOUT BORDERS 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 PARASITES WITHOUT BORDERS INC?
- PARASITES WITHOUT BORDERS INC (New York) receives grants from 21 organizations whose IRS filings report $836,581 to it, the largest being THE DONALD AND BARBARA ZUCKER FAMILY FOUNDATION ($596,000). 9 of them have funded it in more than one year.
- How many funders does PARASITES WITHOUT BORDERS INC have?
- IRS filings report 21 organizations giving $836,581 in grants to PARASITES WITHOUT BORDERS INC, 9 of which have funded it in more than one year.
- Who is the largest funder of PARASITES WITHOUT BORDERS INC?
- THE DONALD AND BARBARA ZUCKER FAMILY FOUNDATION is the largest funder on record, with $596,000 in grants. The full list of funders is on this page.
- How can an organization like PARASITES WITHOUT BORDERS 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 FY2025 (financials across 2017–2025), and the filings of 21 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