· Public charity
International Society on Thrombosis and Haemostasis Inc
The international society on thrombosis and haemostasis (isth) advances the understanding, prevention, diagnosis and treatment of conditions related to thrombosis and hemostasis.
What you funded, over time
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 92% of INTERNATIONAL SOCIETY ON THROMBOSIS AND HAEMOSTASIS INC’s grantee dollars fall outside its nine largest cause areas, whether because the recipient carries no IRS cause code or because its cause sits in the long tail. A chart would be mostly one residual band and misrepresent the portfolio.
Where the money goes
Your grants by size, and where they go.
The 4 grants below total $130,119 — the rows itemised in this filing. The $407,330 headline is the total grant expense reported on the return, so the remaining $277,211 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.
By grant size · FY2025
- $10k–50k2 grants · $30k
- $50k–250k2 grants · $100k
| Recipient | Amount |
|---|---|
| UNIVERSITY OF NORTH CAROLINA | $50,000 |
| BRIGHAM AND WOMEN'S HOSPITAL | $50,000 |
| THE REGENTS OF THE UNIV OF MICHIGAN | $17,700 |
| ENDEAVOR HEALTH | $12,419 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Dollar for dollar, your grants (FY19–25) land where the poverty rate runs at 12%, against an area that typically sits at 11%. 73% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Grants abroad, by region — $228k on the FY2025 return
Schedule F, as filed: 6 regions, $140k to organizations and $88k to individuals. The IRS asks for region and purpose, not the recipient, so no country or grantee can be named here.
Stated purpose: SEE PART V · RSCH GRANTS · FELLOWSHIP STIPEND,TRAVEL
Stated purpose: SEE PART V
Stated purpose: FELLOWSHIP STIPEND TRAVEL · RTW
Stated purpose: SEE PART V
Stated purpose: SEE PART V
Stated purpose: RTW
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving. Grants abroad on Schedule F are filed by region, purpose and amount with no recipient name, so they are shown by region and cannot be placed on the country map or matched to a grantee.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
4 repeat relationships — 2 still active in FY2025, 2 since wound down; 2 grantees were first funded in FY2025 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Still filing today
New vs renewed · share of each year
In FY2025, 52% of grant dollars renewed an existing relationship; $62k went to new ones.
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- UOUNIVERSITY OF UTAH3× · 2020–2023 · $100k
- UOUNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL2× · 2023–2025 · $100k
- ROREGENTS OF THE UNIVERSITY OF MICHIGAN2× · 2024–2025 · $68k
Funded once
- BIBETH ISRAEL DEACONESS MEDICAL CENTER INCone grant, 2024 · $15k · revenue 0%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
2 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 2 of the 7 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
Government reliance of your grantees
Every dot is one organization International Society on Thrombosis and Haemostasis Inc funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal, a single department, or state — and drag the year to watch it move.
- Beth Israel Deaconess Medical Center Inc — 6% of income from government
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
Warm introductions · Powered by PlinthPlus
How do I get to International Society on Thrombosis and Haemostasis Inc?
Find your warmest path to International Society on Thrombosis and Haemostasis Inc through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.