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American Society for Radiation Oncology at a glanceAlso receives grants: funding profile →

· Public charity

American Society for Radiation Oncology

To advance the specialty of radiation oncology through promotion of accessible, high-quality care for people with cancer, cultivating and educating the workforce, fostering research and innovation, and leading policy development and advocacy.

$873k
Granted FY2025still arriving
10
Grants FY2025still arriving
8
States reached
$363k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
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.

Health$3.6MEducation$222kScience & Tech$213k
02FY2025 · 10 grants

Where the money goes

Grants by size, and the largest recipients.

How this is measured
The 10 grants below total $696,000, the rows itemized in this filing. The $873,465 headline is the total grant expense on the return; the other $177,465 is giving the schedule does not break out (grants under the $5,000 itemization floor, grants to individuals, grants on other schedules). Every figure below describes the itemized rows only.

By grant size · FY2025

  • Under $10k1 grant · $9k
  • $10k–50k4 grants · $75k
  • $50k–250k4 grants · $250k
  • $250k+1 grant · $363k
$50,000
Median grant
8
States reached
$60M
Total assets
Largest grants
RecipientAmount
AMERICAN CANCER SOCIETY INC$362,500
WASHINGTON UNIVERSITY$100,000
SLOAN KETTERING INSTITUTE FOR CANCER RESEARCH$50,000
AMERICAN ASSOCIATION OF PHYSICISTS IN MEDICINE$50,000
THE GENERAL HOSPITAL CORPORATION$50,000
NRG ONCOLOGY FOUNDATION$25,000
LUNGEVITY FOUNDATION$25,000
CARTER S FOUNDATION$12,500
LATINAS CONTRA CANCER$12,500
TONY LA RUSSA S ANIMAL RESCUE FOUNDATION$8,500
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 (FY21–21, $10k) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%JENNIFER S FALLICK CANCER SUPPORT CENTER: $10k → 14%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

IL
MI
NY
MA
OR
OH
PA
CT
CA
MO
VA
MD
TN
NC
DC
GA
TX
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.

65%of every dollar goes to organizations it has funded before.
$3.0M · 14 repeat orgs$1.6M to everyone else

14 repeat relationships: 6 still active in FY2025, 8 since wound down; 4 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

14
28

Total granted

$3.0M
$1.6M

Median revenue growth · since first grant

+10%
+12%

Still filing today

71%
75%

New vs renewed · share of each year

In FY2025, 88% of grant dollars renewed an existing relationship; $84k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
HealthEducationHuman ServicesScience & TechRecreation & SportsAnimalsOther
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

  • MELANOMA RESEARCH ALLIANCE FOUNDATION
    2× · 2023–2024 · $240k · revenue +77%
  • Dana-Farber Cancer Institute Inc
    3× · 2017–2021 · $163k · revenue +162%
  • WASHINGTON UNIVERSITY
    2× · 2023–2025 · $125k · revenue +16%

Funded once

  • RO
    REGENTS OF THE UNIVERSITY OF CALIFORNIA AT SAN DIEGO
    one grant, 2017 · $225k
  • THE UNIVERSITY OF TEXAS FOUNDATION INCgraduated
    one grant, 2021 · $125k · revenue +44%
  • EU
    Emory Universitygraduated
    one grant, 2021 · $113k · revenue +32%
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
Memorial Sloan-Kettering Cancer Center

Leadership in the prevention, treatment, and cure of cancer through excellence, vision and cost effectiveness in patient care, outreach programs, research, and education.

Health
2
The Johns Hopkins Hospital

For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…

Health
3
Fred Hutchinson Cancer Center

Fred hutch cancer center ("fred hutch") unites innovative research and compassionate care to prevent and eliminate cancer and infectious disease. continued on schedule o

Health
4
Targeting Resistance in Cancer Cooperative
Health
5
University Medical Center Inc

To provide care to our community and to serve as a major teaching hospital for education and training in medicine, dentistry, nursing, and allied health professions.

Health
6
Sanford Burnham Prebys Medical Discovery Institute

Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…

Health
7
The Susan G Komen Breast Cancer Fdn Group

Susan g. komen 's mission is to save lives by meeting the most critical needs in our communities & investing in breakthrough research to prevent & cure breast cancer.

—
8
Rush University Medical Center

The mission of Rush is to improve the health of the individuals and diverse communities we serve through the integration of outstanding patient care, education, research and community partnerships.

Health
9
The Nebraska Medical Center

The Nebraska Medical Center (TNMC)'s mission is to lead the world in transforming lives to create a healthy future for individuals and communities through premier educational programs, innovative research, and extraordinary patient care.

Health
10
City of Hope National Medical Center

To make hope a reality for all touched by cancer and diabetes. please see schedule o for a continuation of our mission.

Health
11
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
12
University of Minnesota Physicians

University of minnesota physicians serves as the integrated group practice for the university of minnesota medical school full-time faculty to provide the highest quality healthcare to patients and their families.university of minnesota…

Health
How this is measured
The grantee most central to the portfolio’s shape is City of Hope; 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

36 grantees tracked through their own filings, 2017–2025.

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 2025, not grant rows in a single year, so this will not match the grant count on the cover. 36 of the 48 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)
3
Early backer (in before they grew)
36/36
Grantees still filing
22/36
Grew since first funded

Where the money sits, by cause and then by grantee

AMERICAN CANCER SOCIETY INC: $1,100,000 · HealthAMERICAN CANCER SOCIETY INCRADIATION ONCOLOGY INSTITUTE: $556,642 · HealthRADIATION ONCOLOGY INSTITUTEMELANOMA RESEARCH ALLIANCE FOUNDATION: $240,000 · HealthMELANOMA RESEARCH ALLIANCE FOUNDATIONDana-Farber Cancer Institute Inc: $162,500 · HealthDana-Farber Cancer Institute IncUC HEALTHCARE SYSTEM: $104,040 · HealthTHE FEINSTEIN INSTITUTES FOR MEDICAL RESEARCH: $101,040 · HealthThe Institute For Cancer Research: $100,000 · Health+14 more: $267,500 · Health+14 moreREGENTS UNIV OF CALIFORNIA: $225,000 · OtherREGENTS UNIV OF CALIFORNIAREGENTS OF THE UNIVERSITY OF CALIFORNIA AT SAN DIEGO: $225,000 · OtherREGENTS OF THE UNIVERSITY OF CAL…OREGON HEALTH & SCIENCE UNIVERSITY: $136,867 · OtherOREGON HEALTH & SCIENCE UNIVERSI…THE UNIVERSITY OF TEXAS FOUNDATION INC: $125,000 · OtherTHE UNIVERSITY OF TEXAS FOUNDATI…UNIVERSITY OF CALIFORNIA SAN FRANCISCO: $112,500 · OtherUNIVERSITY OF CALIFORNIA SAN FRA…MEMORIAL SLOAN-KETTERING CANCER CENTER: $100,000 · OtherMEMORIAL SLOAN-KETTERING CANCER …UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL: $100,000 · OtherUNIVERSITY OF NORTH CAROLINA AT …REGENTS OF THE UNIVERSITY OF MICHIGAN: $100,000 · OtherREGENTS OF THE UNIVERSITY OF MIC…UTMD ANDERSON: $62,500 · OtherUNIVERSITY HOSPITALS HEALTH SYSTEM INC: $50,000 · OtherMASS GENERAL BRIGHAM INCORPORATED: $50,000 · Other+4 more: $57,500 · OtherWASHINGTON UNIVERSITY: $125,000 · EducationWASHINGTON UNIV…Emory University: $112,500 · EducationEmory Universit…ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI: $104,040 · EducationICAHN SCHOOL OF…WAKE FOREST UNIVERSITY HEALTH SCIENCES: $100,000 · EducationWAKE FOREST UNI…THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $87,500 · EducationTHE BOARD OF TR…DUKE UNIVERSITY: $50,000 · EducationDUKE UNIVERSITYYale University: $50,000 · EducationYale UniversityJOHNS HOPKINS UNIVERSITY: $34,267 · EducationAMERICAN ASSOCIATION OF PHYSICISTS IN MEDICINE: $75,000 · Science & TechNorthwestern University: $25,000 · Recreation & SportsJENNIFER S FALLICK CANCER SUPPORT CENTER: $10,000 · Human ServicesJoybound People and Pets FKA Tony La Russa's Animal Rescue Foundation: $8,500 · Animals
Health$2,631,722Other$1,344,367Education$663,307Science & Tech$75,000Recreation & Sports$25,000Human Services$10,000Animals$8,500

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetAMERICAN CANCER SOCIETY INC: $1,100,000 over 4y, 0.3% of budgetRADIATION ONCOLOGY INSTITUTE: $556,642 over 8y, 17% of budgetMELANOMA RESEARCH ALLIANCE FOUNDATION: $240,000 over 2y, 1.2% of budgetDana-Farber Cancer Institute Inc: $162,500 over 3y, 0.0% of budgetTHE UNIVERSITY OF TEXAS FOUNDATION INC: $125,000 over 1y, 0.3% of budgetWASHINGTON UNIVERSITY: $125,000 over 2y, 0.0% of budgetEmory University: $112,500 over 1y, 0.0% of budgetUC HEALTHCARE SYSTEM: $104,040 over 1y, 0.0% of budgetICAHN SCHOOL OF MEDICINE AT MOUNT SINAI: $104,040 over 1y, 0.0% of budgetTHE FEINSTEIN INSTITUTES FOR MEDICAL RESEARCH: $101,040 over 1y, 0.1% of budgetWAKE FOREST UNIVERSITY HEALTH SCIENCES: $100,000 over 1y, 0.0% of budgetThe Institute For Cancer Research: $100,000 over 1y, 0.1% of budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $87,500 over 4y, 0.0% of budgetAMERICAN ASSOCIATION OF PHYSICISTS IN MEDICINE: $75,000 over 2y, 0.2% of budgetNRG ONCOLOGY FOUNDATION INC: $75,000 over 3y, 0.1% of budgetDUKE UNIVERSITY: $50,000 over 2y, 0.0% of budgetYale University: $50,000 over 2y, 0.0% of budgetLUNGEVITY FOUNDATION INC: $37,500 over 2y, 0.2% of budgetJOHNS HOPKINS UNIVERSITY: $34,267 over 3y, 0.0% of budgetNorthwestern University: $25,000 over 1y, 0.0% of budgetVanderbilt University Medical Center: $25,000 over 1y, 0.0% of budgetCANCER SUPPORT COMMUNITY LOS ANGELES: $12,500 over 1y, 0.9% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $12,500 over 1y, 0.0% of budgetBREAST CANCER ANGELS: $12,500 over 1y, 1.5% of budgetTOUCH4LIFE INC: $12,500 over 1y, 1.6% of budgetHENRY FORD HEALTH SYSTEM: $12,500 over 1y, 0.0% of budgetCITY OF HOPE: $12,500 over 1y, 0.0% of budgetCARTERS FOUNDATION INC: $12,500 over 1y, 4.6% of budgetBREAST CANCER RESOURCE CENTER: $10,000 over 1y, 0.6% of budgetSISTERS NETWORK CHICAGO CHAPTER: $10,000 over 1y, 22% of budgetASOCIACION LATINA DE ASISTENCIA Y PREVENCION DEL CANCER DE MAMA: $10,000 over 1y, 5.4% of budgetJENNIFER S FALLICK CANCER SUPPORT CENTER: $10,000 over 1y, 0.7% of budgetTHRIVEWELL CANCER FOUNDATION: $10,000 over 1y, 0.7% of budgetJoybound People and Pets FKA Tony La Russa's Animal Rescue Foundation: $8,500 over 1y, 0.1% 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.

American Cancer Socie…Bears CareNorthwestern Universi…The Albertsons Compan…The Ayco Charitable F…Gs Donor Advised Phil…Renaissance Charitabl…Morgan Stanley Global…Raymond James Charita…Vanguard Charitable E…National Philanthropi…The Blackbaud Giving …
American Cancer Society IncGA15× affinity5 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: American Cancer Society Inc · Bears Care · Northwestern University · The Albertsons Companies Foundation · The Ayco Charitable Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Renaissance Charitable Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · Raymond James Charitable Endowment Fund · Vanguard Charitable Endowment Program · National Philanthropic Trust · The Blackbaud Giving Fund

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 American Society for Radiation Oncology funds: left to right is the share of its income from government, bottom to top the share from American Society for Radiation Oncology. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%1%3%6%10%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 12%
  • Johns Hopkins University: 12% of income from government
  • Yale University: 12% of income from government
  • Dana-Farber Cancer Institute Inc: 7% of income from government
no gov moneyreceives it· size = income
1get no government money at all
4report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
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.

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 48 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 e-file return for fiscal year 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on American Society for Radiation Oncology’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