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California · Public charity

Arthritis National Research Foundation

To provide initial research funding to brilliant, investigative scientists with new ideas to cure arthritis and related autoimmune diseases.

$2.1M
Granted FY2025(still arriving)
15
Grants FY2025
16
Organizations funded FY2024
13%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$125,000
Largest grant, FY2025
$375,000
Organizations funded a year
1 to 16
FY2018 to FY2024
States reached, FY2025
9
Total assets, FY2025
$10M

How open it is to new grantees

In FY2024, 13% of the organizations Arthritis National Research Foundation funded were first-time grantees, receiving 11% of its grant dollars.

New vs renewed · share of each year

In FY2024, 89% of grant dollars renewed an existing relationship; $250k went to new ones.

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

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

’18’19’20’21’22’23’24
HealthEducationPhilanthropyRecreation & SportsOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving14$2.0M36%
FY202416$2.3M13%
FY202314$2.2M64%
FY20221$1.6M0%
FY20211$1.4M100%
FY202011$1.6M27%
FY201913$1.6M31%
FY201812$1.3M67%
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Health$15MScience & Tech$90k

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

WA
MN
IL
MI
NY
MA
OR
OH
PA
CT
CA
CO
MO
VA
TN
NC
OK
AL
GA
TX

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Arthritis National Research Foundation$2,998,068259%
Mass General Brigham Incorporated$1,050,0005n/a
Regents of the University of Michigan$975,0006n/a
Children's Hospital Corporation$950,00050%
Washington University$625,00030%
University of Alabama at Birmingham$525,0005n/a
University of Washington$512,3024n/a
University of California San Francisco$475,0003n/a
University of San Diego$450,00030%
The Feinstein Institutes for Medical Research$450,00040%
Show all 44 grantees
All grantees of Arthritis National Research Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Arthritis National Research Foundation$2,998,068259%
Mass General Brigham Incorporated$1,050,0005n/a
Regents of the University of Michigan$975,0006n/a
Children's Hospital Corporation$950,00050%
Washington University$625,00030%
University of Alabama at Birmingham$525,0005n/a
University of Washington$512,3024n/a
University of California San Francisco$475,0003n/a
University of San Diego$450,00030%
The Feinstein Institutes for Medical Research$450,00040%
New York University$450,00040%
Vanderbilt University Medical Center$350,00030%
Uc San Francisco Pediatrics$300,0002n/a
Rush University Medical Center$300,00020%
Children's Hospital Medical Center$275,00030%
Weill Medical College of Cornell Univers$250,0002n/a
Henry Ford Health System$225,00020%
Rector & Visitors of the University of Virginia$225,0002n/a
University of Rochester$225,00020%
Vanderbilt University$225,00010%
University of Oklahoma Health Sciences Center$200,0002n/a
Van Andel Institute$200,0002n/a
Baylor College of Medicine$200,00020%
Northwestern University$200,00020%
Seattle Children's Hospital$200,00020%
Regents of the University of California at Berkeley$190,4112n/a
University of North Carolina at Chapel H Arts & Sciences Foundation$150,00020%
Oregon Health & Science University$125,0001n/a
Ohio University$125,0001n/a
Regents of the University of California at San Diego$125,0001n/a
Washington State University$125,0001n/a
The Hospital for Special Surgery Fund Inc$125,00010%
Memorial Sloan-Kettering Cancer Center$125,0001n/a
Colorado Energy Office$125,0001n/a
University of Pittsburgh$125,00010%
Regents of the University of Colorado$125,0001n/a
University of Texas Health Science Center Houston$100,0001n/a
La Jolla Institute for Immunology$100,0001n/a
University of San Francisco$100,00010%
Mass General Brigham Incorporated & Affiliates Group Return$100,00010%
University of Massachusetts Foundation Inc$100,00010%
St Jude Children's Research Hospital Inc$100,00010%
University of Denver$100,00010%
Immune Boost Capital$12,0001n/a

Where it is load-bearing

Arthritis National Research Foundation supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 23 largest grantees; load-bearing ones sit top left.

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetArthritis National Research Foundation: $2,998,068 over 2y, 59% of budgetChildren's Hospital Corporation: $950,000 over 5y, 0.0% of budgetWashington University: $625,000 over 3y, 0.0% of budgetUniversity of San Diego: $450,000 over 3y, 0.0% of budgetThe Feinstein Institutes for Medical Research: $450,000 over 4y, 0.1% of budgetNew York University: $450,000 over 4y, 0.0% of budgetVanderbilt University Medical Center: $350,000 over 3y, 0.0% of budgetRush University Medical Center: $300,000 over 2y, 0.0% of budgetChildren's Hospital Medical Center: $275,000 over 3y, 0.0% of budgetHenry Ford Health System: $225,000 over 2y, 0.0% of budgetUniversity of Rochester: $225,000 over 2y, 0.0% of budgetVanderbilt University: $225,000 over 1y, 0.0% of budgetBaylor College of Medicine: $200,000 over 2y, 0.0% of budgetNorthwestern University: $200,000 over 2y, 0.0% of budgetSeattle Children's Hospital: $200,000 over 2y, 0.0% of budgetUniversity of North Carolina at Chapel H Arts & Sciences Foundation: $150,000 over 2y, 0.5% of budgetThe Hospital for Special Surgery Fund Inc: $125,000 over 1y, 0.5% of budgetUniversity of Pittsburgh: $125,000 over 1y, 0.0% of budgetUniversity of San Francisco: $100,000 over 1y, 0.0% of budgetMass General Brigham Incorporated & Affiliates Group Return: $100,000 over 1y, 0.0% of budgetUniversity of Massachusetts Foundation Inc: $100,000 over 1y, 0.1% of budgetSt Jude Children's Research Hospital Inc: $100,000 over 1y, 0.0% of budgetUniversity of Denver: $100,000 over 1y, 0.0% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 23.

Nonprofits that may fit its grantmaking

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.

The Pew Charitable TrustsDC13.4× affinity4 shared granteesties to 3 of 3Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Pew Charitable Trusts · National Philanthropic Trust · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift 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.

Compare Arthritis National Research Foundation with peer funders

About Arthritis National Research Foundation

How much does Arthritis National Research Foundation give?
Arthritis National Research Foundation reported 15 grants totaling $2,137,000 in its FY2025 IRS filing. It funded between 1 and 16 organizations a year over FY2018 to FY2024.
What does Arthritis National Research Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Health (99%), Science & Tech (1%).
Who are Arthritis National Research Foundation's largest grantees?
By total granted over FY2017 to FY2025: Arthritis National Research Foundation ($3.0M), Mass General Brigham Incorporated ($1.1M), Regents of the University of Michigan ($975k).
Does Arthritis National Research Foundation fund new organizations?
In FY2024, 13% of the organizations it funded were first-time grantees.
Which funders back the same organizations as Arthritis National Research Foundation?
Its strongest co-funders, measured against what their size predicts, include The Pew Charitable Trusts, National Philanthropic Trust, Donor Advised Charitable Giving Inc.
Where is Arthritis National Research Foundation based?
Arthritis National Research Foundation is based in CA.

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 46 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

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