· Private foundation
Fosforo Foundation Inc
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What you funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2024
- Under $10k1 grant · $4k
- $10k–50k1 grant · $20k
| Recipient | Amount |
|---|---|
| NAIRYKUTZI COMUNIDAD Y DESAROLLO | $20,000 |
| CANCER ACTION INC | $3,950 |
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 (FY17–20, $102k) land where the poverty rate runs at 9%, against an area that typically sits at 10%. 24% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-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.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +46% since the first grant, against +41% for the ones you funded once.
20 repeat relationships — 1 still active in FY2024, 19 since wound down; 1 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, 84% of grant dollars renewed an existing relationship; $4k 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
- PSPALM SPRINGS INTERNATIONAL FILM SOCIETY3× · 2017–2021 · $75k · revenue +23%
RAVINIA FESTIVAL ASSOCIATION3× · 2017–2020 · $58k · revenue +54%- LLLOVE & LOVE TENNIS FOUNDATION INC3× · 2017–2021 · $46k · revenue +161%
Funded once
- ARAmerican Red Crossone grant, 2017 · $20k
- IGIndividual grant recipientone grant, 2020 · $10k
- COChildren of Restaurant Employees LTDone grant, 2020 · $10k
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.
Setting a new standard of employment for people who have disabilities and chronic medical conditions.
The GI Research Foundation works to treat, prevent, and cure digestive diseases. In collaboration with the physicians and scientists at the University of Chicago Digestive Diseases Center, we fund innovative clinical and laboratory…
Rock river valley blood center, in partnership with our community, is dedicated to providing safe, high value blood products and services to people in need.
To define and advance quality, effective, equitable, and accessible cancer care and prevention so all people can live better lives.
Camp For All transforms the world for children and adults with challenging illnesses, disabilities, or special needs.
Providing innovative and life-enriching services for children, adolescents, and adults with disabilities.
To promote, support and further the interests and purposes of the arc of the united states, inc.
The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…
Children's services
To serve our communities by provding innovative and compassionate healthcare.
Preserve the integrity of competition, inspire true sport, protect the rights of u.s. athletes
Midwest dairy works with others to give consumers an excellent dairy experience increasing sales, fostering innovation, and inspiring consumer confidence of dairy products and practices.
For reference, the grantee most central to the portfolio’s shape is St Baldrick's Foundation Inc and the most unlike its peers is Dana-Farber Cancer Institute 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 38 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 2% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 5% lost their exemption, against 13% 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.
42 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. 42 of the 66 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 OPERATION RED WINGS FOUNDATION ↗
- Who funds PALM SPRINGS INTERNATIONAL FILM SOCIETY ↗
- Who funds RAVINIA FESTIVAL ASSOCIATION ↗
- Who funds LOVE & LOVE TENNIS FOUNDATION INC ↗
- Who funds Equestrian Connection NFP ↗
- Who funds Museum of Broadcast Communications ↗
- Who funds SPECIAL OLYMPICS ILLINOIS ↗
- Who funds UNITED CEREBRAL PALSY OF CENTRAL FLORIDA INC ↗
- Who funds American Heart Association Inc ↗
- Who funds OMNI YOUTH SERVICES INCORPORATED ↗
- Who funds OTIS WILSON CHARITABLE ASSOCIATION ↗
- Who funds RIVERSIDE FOUNDATION ↗
- Who funds THE BIANCA RAE FOUNDATION ↗
- Who funds NATIONAL FOOTBALL LEAGUE ALUMNI INC ↗
- Who funds USBG NATIONAL CHARITY FOUNDATION ↗
- Who funds UNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC ↗
- Who funds Variety Childrens Charities of the Desert Tent 66 ↗
- Who funds GREATER CHICAGO FOOD DEPOSITORY ↗
- Who funds NORTHERN ILLINOIS FOOD BANK ↗
- Who funds ELWA Ministries Association USA ↗
- Who funds SAFE HAVEN OF GREATER WTBY INC ↗
- Who funds Dana-Farber Cancer Institute Inc ↗
- Who funds 4ROOTS FOUNDATION INC ↗
- Who funds Cancer Action Inc DBA Cancer Support Community Rochester ↗
- Who funds RALLY FOR RYAN ↗
- Who funds CELTIC FC FOUNDATION INC ↗
- Who funds National Alliance on Mental Illness NAMI South Shore ↗
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: AbbVie Foundation · Arthur J Gallagher Foundation · Equitable Foundation Inc · The Blackbaud Giving Fund · Charities Aid Foundation America · Verizon Foundation · The Bank of America Charitable Foundation Inc · Enterprise Holdings Foundation · Natl Christian Charitable Fdn Inc · Jpmorgan Chase Foundation · American Online Giving Foundation Inc · The Pfizer Foundation Inc
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 Fosforo Foundation 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 or a single department — and drag the year to watch it move.
- United Cerebral Palsy of Central Florida Inc — 13% of income from government
- Dana-Farber Cancer Institute Inc — 7% 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 Fosforo Foundation Inc?
Find your warmest path to Fosforo Foundation 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.