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Fosforo Foundation Inc at a glance

· 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.

$24k
Granted FY2024still arriving
2
Grants FY2024still arriving
1
States reached
$20k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Human Services$604kArts & Culture$214kHealth$146kEnvironment$92kRecreation & Sports$86kEmployment$40kPublic Safety & Disaster$22kPhilanthropy$20kOther$0
02FY2024 · 2 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k1 grant · $4k
  • $10k–50k1 grant · $20k
$20,000
Median grant
1
States reached
$954
Total assets
Largest grants
RecipientAmount
NAIRYKUTZI COMUNIDAD Y DESAROLLO$20,000
CANCER ACTION INC$3,950
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its 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. Its grants skew toward lower-need ZIPs.

area typical 10%National Alliance on Mental Illness NAMI South Shore: $2k → 8%Celtic FC Foundation Inc: $3k → 16%Safe Haven of Greater Waterbury: $3k → 12%Equestrian Connection NFP: $25k → 8%USBG Nat'L Charity Foundation: $10k → 13%Safe Haven of Greater Waterbury: $3k → 12%Omni Youth Services Incorporated: $10k → 8%Equestrian Connection NFP: $10k → 8%Variety The Childrens Charity of the Desert: $8k → 11%Omni Youth Services Incorporated: $5k → 8%Equestrian Connection NFP: $5k → 8%Omni Youth Services Incorporated: $3k → 8%Equestrian Connection NFP: $5k → 8%Omni Youth Services Incorporated: $3k → 8%Riverside Foundation: $5k → 8%Riverside Foundation: $5k → 8%Riverside Foundation: $275 → 8%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

ME
NH
MN
IL
WI
MI
NY
MA
NV
IA
IN
NJ
CT
CA
VA
KS
AR
NC
TX
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

89%of every dollar goes to organizations it has funded before.
$1.1M · 20 repeat orgs$144k to everyone else

Grantees it renews have grown median revenue +45% since the first grant, against +41% for those 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

Re-uppedFunded once

Organizations

20
45

Total granted

$1.1M
$140k

Median revenue growth · since first grant

+45%
+41%

Still filing today

75%
51%

New vs renewed · share of each year

In FY2024, 84% of grant dollars renewed an existing relationship; $4k went to new ones.

50%100%’17’18’19’20’21’22’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’17’18’19’20’21’22’23’24
Human ServicesHealthPhilanthropyEducationFood & NutritionArts & CultureOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • PS
    PALM SPRINGS INTERNATIONAL FILM SOCIETY
    3× · 2017–2021 · $75k · revenue +36%
  • RAVINIA FESTIVAL ASSOCIATION
    3× · 2017–2020 · $58k · revenue +53%
  • LL
    LOVE & LOVE TENNIS FOUNDATION INC
    3× · 2017–2021 · $46k · revenue +161%

Funded once

  • AR
    American Red Cross
    one grant, 2017 · $20k
  • CO
    Children of Restaurant Employees LTD
    one grant, 2020 · $10k
  • UN
    USBG NATIONAL CHARITY FOUNDATION
    one grant, 2020 · $10k · revenue -98%
How this is measured

Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
St Vincent Depaul Rehabilitation Service of Texas Inc

Setting a new standard of employment for people who have disabilities and chronic medical conditions.

Employment
2
Gastro Intestinal Research Foundation Inc

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…

Health
3
Northern Illinois Blood Bank Inc D/B/a Rock River Valley Blood Center

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.

Health
4
National Comprehensive Cancer Network

To define and advance quality, effective, equitable, and accessible cancer care and prevention so all people can live better lives.

Health
5
Camp for All Foundation

Camp For All transforms the world for children and adults with challenging illnesses, disabilities, or special needs.

Youth Development
6
Homeward Bound Inc

Providing innovative and life-enriching services for children, adolescents, and adults with disabilities.

Human Services
7
Foundation of the Arc of the United States

To promote, support and further the interests and purposes of the arc of the united states, inc.

—
8
Npr Foundation

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…

—
9
United Children's Services of Bennington County Inc

Children's services

Human Services
10
Union Health System

To serve our communities by provding innovative and compassionate healthcare.

Health
11
United States Anti-Doping Agency

Preserve the integrity of competition, inspire true sport, protect the rights of u.s. athletes

Recreation & Sports
12
Midwest Dairy Association

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.

—
How this is measured
The grantee most central to the portfolio’s shape is St Baldrick's Foundation Inc; 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.
04the grantee network

43 grantees tracked through their own filings, 2017–2026.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2026, not grant rows in a single year, so this will not match the grant count on the cover. 43 of the 66 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
7
Early backer (in before they grew)
39/43
Grantees still filing
30/43
Grew since first funded

Where the money sits, by cause and then by grantee

OPERATION RED WINGS FOUNDATION: $562,150 · EmploymentOPERATION RED WINGS FOUNDATIONNAIRYKUTZI COMUNIDAD Y DESAROLLO: $90,000 · OtherNAIRYKUTZI COMUNIDAD Y DESARO…SPECIAL OLYMPICS ILLINOIS: $39,000 · OtherSPECIAL OLYMPICS ILLINOISIRA Education Foundation: $20,000 · OtherIRA Education FoundationAmerican Red Cross: $20,000 · OtherAmerican Red CrossLOVE & LOVE TENNIS FOUNDATION INC: $46,000 · OtherLOVE & LOVE TENNIS FOUNDATION…+39 more: $115,947 · Other+39 moreEquestrian Connection NFP: $45,000 · Human ServicesEquestria…OMNI YOUTH SERVICES INCORPORATED: $20,000 · Human ServicesOMNI YOUT…RIVERSIDE FOUNDATION: $10,275 · Human ServicesRIVERSIDE…USBG NATIONAL CHARITY FOUNDATION: $10,000 · Human ServicesUSBG NATI…Variety Childrens Charities of the Desert Tent 66: $7,500 · Human ServicesVariety C…SAFE HAVEN OF GREATER WTBY INC: $5,000 · Human Services+2 more: $4,500 · Human ServicesRAVINIA FESTIVAL ASSOCIATION: $58,000 · Arts & CultureMuseum of Broadcast Communications: $40,000 · Arts & CulturePALM SPRINGS INTERNATIONAL FILM SOCIETY: $75,000 · Recreation & SportsUNITED CEREBRAL PALSY OF CENTRAL FLORIDA INC: $35,000 · HealthAmerican Heart Association Inc: $20,000 · HealthDana-Farber Cancer Institute Inc: $5,000 · HealthCancer Action Inc DBA Cancer Support Community Rochester: $3,950 · Health+3 more: $3,000 · HealthTHE ART INSTITUTE OF CHICAGO: $40,000 · EducationNATIONAL FOOTBALL LEAGUE ALUMNI INC: $10,000 · Education+1 more: $255 · Education
Employment$562,150Other$330,947Human Services$102,275Arts & Culture$98,000Recreation & Sports$75,000Health$66,950Education$50,255

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetOPERATION RED WINGS FOUNDATION: $562,150 over 5y, 10% of budgetPALM SPRINGS INTERNATIONAL FILM SOCIETY: $75,000 over 3y, 9.0% of budgetRAVINIA FESTIVAL ASSOCIATION: $58,000 over 3y, 0.1% of budgetLOVE & LOVE TENNIS FOUNDATION INC: $46,000 over 3y, 13% of budgetEquestrian Connection NFP: $45,000 over 4y, 0.8% of budgetMuseum of Broadcast Communications: $40,000 over 2y, 5.1% of budgetTHE ART INSTITUTE OF CHICAGO: $40,000 over 2y, 0.0% of budgetSPECIAL OLYMPICS ILLINOIS: $39,000 over 2y, 0.3% of budgetUNITED CEREBRAL PALSY OF CENTRAL FLORIDA INC: $35,000 over 2y, 0.1% of budgetOMNI YOUTH SERVICES INCORPORATED: $20,000 over 4y, 0.1% of budgetAmerican Heart Association Inc: $20,000 over 4y, 0.0% of budgetOTIS WILSON CHARITABLE ASSOCIATION: $11,000 over 3y, 3.0% of budgetRIVERSIDE FOUNDATION: $10,275 over 3y, 0.1% of budgetTHE BIANCA RAE FOUNDATION: $10,000 over 2y, 7.5% of budgetUSBG NATIONAL CHARITY FOUNDATION: $10,000 over 1y, 0.1% of budgetNATIONAL FOOTBALL LEAGUE ALUMNI INC: $10,000 over 1y, 0.5% of budgetUNITED JEWISH APPEAL-FEDERATION OF JEWISH PHILANTHROPIES OF NEW YORK INC: $9,250 over 1y, 0.0% of budgetVariety Childrens Charities of the Desert Tent 66: $7,500 over 1y, 2.9% of budgetGREATER CHICAGO FOOD DEPOSITORY: $5,810 over 1y, 0.0% of budgetSAFE HAVEN OF GREATER WTBY INC: $5,000 over 2y, 0.1% of budgetDana-Farber Cancer Institute Inc: $5,000 over 1y, 0.0% of budgetNORTHERN ILLINOIS FOOD BANK: $5,000 over 1y, 0.0% of budgetCancer Action Inc DBA Cancer Support Community Rochester: $3,950 over 1y, 0.5% of budgetNational Alliance on Mental Illness NAMI South Shore: $2,000 over 1y, 2.1% of budgetKathy's House Inc: $1,500 over 1y, 0.1% of budgetSPECIAL LEISURE SERVICES FOUNDATION: $1,250 over 2y, 0.2% of budgetBJ'S RESTAURANTS FOUNDATION: $1,000 over 1y, 0.8% of budgetTAYA AND CHRIS KYLE FOUNDATION SERVICE FAMILY STRONG: $1,000 over 1y, 0.1% of budgetOLD IRVING PARK COMMUNITY CLINIC: $1,000 over 1y, 0.0% of budgetVARIETY - THE CHILDREN'S CHARITY OF IOWA: $500 over 1y, 0.0% of budgetCO-CARE INC: $500 over 1y, 0.1% of budgetMaine Cancer Foundation: $500 over 1y, 0.0% of budgetNEW HORIZON CENTER FOR THE DEVELOPMENTALLY DISABLED: $500 over 1y, 0.0% of budgetTEACHERS TREASURES INC: $255 over 1y, 0.0% of budgetST BALDRICK'S FOUNDATION INC: $250 over 1y, 0.0% of budgetSECOND HARVEST HEARTLAND: $240 over 1y, 0.0% of budgetANIMAL RESCUE LEAGUE OF NEW HAMPSHIRE: $50 over 1y, 0.0% of budget
Grantee by grantee: a decade per organization, before and after funding

A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.

Co-funders

Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.

AbbVie FoundationArthur J Gallagher Fo…Equitable Foundation …The Blackbaud Giving …Charities Aid Foundat…Verizon FoundationThe Bank of America C…Enterprise Holdings F…Natl Christian Charit…Jpmorgan Chase Founda…American Online Givin…The Pfizer Foundation…
AbbVie FoundationIL17.9× affinity10 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

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

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.

How much its grantees rely on government

Each dot is one organization Fosforo Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Fosforo Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%1%4%8%15%funder's share of their income ↑0%19%38%56%75%share of the org’s income from government →median 13%
  • United Cerebral Palsy of Central Florida Inc: 13% of income from government
  • Dana-Farber Cancer Institute Inc: 7% of income from government
no gov moneyreceives it· size = income
2get no government money at all
10report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–75%
typical government reliance, FY20–25
How this is measured
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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
05Through Plinth

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.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 66 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Possibly out of date. A more recent filing (FY2025) is on record and reports no grant expense, so the figures above are from FY2024, the most recent year this funder made grants.

Source object · view filing

Play a game based on Fosforo’s filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home