· Public charity
Stephen Siller Tunnel to Towers Foundation
The mission of the STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION is to honor the sacrifice of fdny firefighter stephen siller, and all those who laid down their lives to save others on september 11, 2001.
What you funded, over time
Every grant clustered by its grantee’s IRS cause code (NTEE), by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
The 44 grants below total $16,432,989 — the rows itemised in this filing. The $173,102,802 headline is the total grant expense reported on the return, so the remaining $156,669,813 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 · FY2024
- Under $10k4 grants · $27k
- $10k–50k21 grants · $431k
- $50k–250k10 grants · $950k
- $250k+9 grants · $15M
| Recipient | Amount |
|---|---|
| SEMPER FI & AMERICA'S FUND | $6,000,000 |
| VETERANS MATTER | $3,100,000 |
| CHILDREN OF FALLEN PATRIOTS FOUNDAT | $2,500,000 |
| VETERANS MATTER | $1,000,000 |
| TRAVIS MANION FOUNDATION | $1,000,000 |
| KID SAVE INTERNATIONAL INC | $500,000 |
| A SOLDIERS JOURNEY HOME | $425,000 |
| RICHMOND UNIVERSITY MEDICAL CENTER | $250,000 |
| MEDAL OF HONOR FOUNDATION | $250,000 |
| GUARDIAN REVIVAL INC | $200,000 |
| THE THOMAS R ELSASSER MEMORIAL SCHO | $198,000 |
| YOU WERE WORTH IT FOUNDATION | $108,284 |
| VARIOUS UNDER 5000 EACH | $105,229 |
| THE ANTHONY M VARVARO BELIEVE FOUN | $70,000 |
| LONG BEACH WATERFRONT WARRIORS | $62,966 |
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.
Your human-services grants (FY17–24, $89.6M) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 100% of those 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.
Which US states your grants reach
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.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 7% of Stephen Siller Tunnel to Towers Foundation’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
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.
32 repeat relationships — 25 still active in FY2024, 7 since wound down; 18 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 76% of grant dollars renewed an existing relationship; $4.0M went to new ones.
Where new relationships form · theme of each grantee’s first grant
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
- USUNITED STATES VETERANS INITIATIVE2× · 2022–2024 · $80M · revenue +34%
- SFSEMPER FI & AMERICA'S FUND3× · 2022–2024 · $14M · revenue +8%
- KIKIDSAVE INTERNATIONAL INC8× · 2017–2024 · $3.1M · revenue +112%
Funded once
- FFFire FamilyTransportation Foundation LTD AKA FDNY Fire Family Transportation Fougraduatedone grant, 2023 · $1.0M · revenue +27%
- GWGLOBAL WAR ON TERRORISM MEMORIAL FOUNDATIONone grant, 2022 · $250k · revenue +13%
- FHFrontier Horizon Incone grant, 2022 · $200k · revenue -50%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
Brief description of the organization's mission the purpose of the fund is to provide assistance to the families of new york city police officers and firefighters who have been killed in the line of duty. after the events of september 11,…
The mission of the stephen siller tunnel to towers foundation is to honor the sacrifice of fdny firefighter stephen siller, and all those who laid down their lives to save others on september 11, 2001. we also honor our military, and first…
Aerial recovery's mission is to save lives and stop evil. through the creation and deployment of humanitarian special operators, aerial recovery brings together selected veterans, first responders, and mission-qualified civilians who,…
Special ops survivors advances the mission "to embrace and empower surviving spouses of fallen special operations heroes to build healthy post-loss futures as they transition and rebuild their new lives." the foundation provides programs…
Quick reaction foundation (qrf) is a non-profit organization founded by veterans to provide rapid response to the developing needs of elite operators and their families from within select u.s. special operations command ("ussocom") teams.…
To provide scuba instruction for veterans with ptsd. the weightlessness of scuba provides a peaceful respite from the pressures and trauma of military service. scuba for amputees provides a freedom of movement not experienced for years…
Frontline to field is a nonprofit organization founded from the hearts of two individuals deeply committed to the well-being of those who serve and sacrifice for others. inspired by their personal connections to the military, first…
Metal4valor seeks to honor the emergency first responders who have made the ultimate sacrifice by posthumously awarding the family of the fallen first responder a crafted metal replica of their service badge as a living memorial of their…
For reference, the grantee most central to the portfolio’s shape is Usa Cares Inc and the most unlike its peers is Stephane Matteau Foundation Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 18 years old; the field is 14. You back the established end — and your money leans older still.
The field is 24% startups (under 5 years old) — 9% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 5% lost their exemption, against 14% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
71 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. 71 of the 88 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.
- Who funds UNITED STATES VETERANS INITIATIVE ↗
- Who funds SEMPER FI & AMERICA'S FUND ↗
- Who funds 1MATTERSORG ↗
- Who funds KIDSAVE INTERNATIONAL INC ↗
- Who funds Children of Fallen Patriots Foundation ↗
- Who funds A SOLDIER'S JOURNEY HOME ↗
- Who funds Fire FamilyTransportation Foundation LTD AKA FDNY Fire Family Transportation Fou ↗
- Who funds Travis Manion Foundation ↗
- Who funds FALLEN AND WOUNDED SOLDIERS FUND ↗
- Who funds RICHMOND MEDICAL CENTER ↗
- Who funds Medal Of Honor Foundation Inc ↗
- Who funds RICHMOND MEDICAL CENTER FOUNDATION INC ↗
- Who funds THE THOMAS R ELSASSER MEMORIAL SCHOLARSHIP FUND INC ↗
- Who funds GUARDIAN REVIVAL INC ↗
- Who funds GLOBAL WAR ON TERRORISM MEMORIAL FOUNDATION ↗
- Who funds Frontier Horizon Inc ↗
- Who funds LUPUS RESEARCH ALLIANCE INC ↗
- Who funds New York Firefighters Burn Center Fdn ↗
- Who funds UFA WIDOWS AND CHILDREN'S FUND ↗
- Who funds VETERANS AIRLIFT COMMAND ↗
- Who funds POTSDAM COLLEGE FOUNDATION INC ↗
- Who funds MAJOR BRENT TAYLOR LEADERSHIP LEGAC ↗
- Who funds NEW YORK FOUNDLING ↗
- Who funds LONG BEACH WATERFRONT WARRIORS ↗
- Who funds PROJECT HOSPITALITY INC ↗
- Who funds ST PETERSBURG WAREHOUSE ARTS DISTRICT INC ↗
- Who funds Hero Agriculture Inc ↗
- Who funds TASK FORCE PINEAPPLE INC ↗
- Who funds JAR OF HOPE ↗
- Who funds TEAM AMERICAN FREEDOM CORP ↗
- Who funds A FAMILY FOR EVERY ORPHAN ↗
- Who funds CHRISTOPHER WHITEHOUSE FOUNDATION INC ↗
- Who funds VETERANS AND ATHLETES UNITED INC ↗
- Who funds SHANKSVILLE VOLUNTEER FIRE COMPANY ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: The Staten Island Foundation · Richmond County Savings Foundation · The Hyde and Watson Foundation · THDF II Inc DBA The Home Depot Foundation & Homer Fund · The Lois & Richard Nicotra Foundation · Robin Hood Foundation · Investors Foundation Inc · Enterprise Holdings Foundation · Verizon Foundation · The Ayco Charitable Foundation · The Pfizer Foundation Inc · Jewish Communal Fund
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization Stephen Siller Tunnel to Towers Foundation 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 or a single department — and drag the year to watch it move.
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 Stephen Siller Tunnel to Towers Foundation?
Find your warmest path to Stephen Siller Tunnel to Towers Foundation 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.