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The Caitlin Bull Foundation at a glance

· Private foundation

The Caitlin Bull Foundation

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.

$251k
Granted FY2025still arriving
2
Grants FY2025still arriving
2
States reached
$250k
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 2025.

Health$1.1MEducation$150kHuman Services$135kAnimals$95kFood & Nutrition$15kYouth Development$11kPhilanthropy$10kEmployment$5k
02FY2025 · 2 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k1 grant · $500
  • $250k+1 grant · $250k
$250,000
Median grant
2
States reached
$5.4M
Total assets
Largest grants
RecipientAmount
Northshore University Healthsystem$250,000
Misfit Mountain$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:

Dollar for dollar, its grants (FY17–25) land where the poverty rate runs at 14%, against an area that typically sits at 12%. 100% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 12%Children's Cancer Partners: $10k → 15%Misfit Mountain: $32k → 12%Charlie's Angels Animal Rescue: $33k → 12%PAWS CHICAGO: $30k → 14%Misfit Mountain: $500 → 12%INNER CITY: $50k → 14%CHICAGO BLACKHAWKS FOUNDATION: $11k → 14%BLACKHAWK CHARITIES: $10k → 14%RONALD MCDONALD HOUSE CHARITIES: $75k → 14%RONALD MCDONALD HOUSE CHARITIES: $55k → 14%RONALD MCDONALD HOUSE CHARITIES: $5k → 14%Northshore University Healthsystem: $250k → 14%Northshore University Healthsystem: $235k → 14%Northshore University Healthsystem: $200k → 14%Northshore University Healthsystem: $150k → 14%NORTHSHORE UNIVERSITY HEALTHSYSTEM: $125k → 14%NORTHSHORE UNIVERSITY HEALTHSYSTEM: $100k → 14%NORTH SHORE: $40k → 14%Evanston Grows: $10k → 14%Curt's Cafe: $5k → 14%Evanston Grows: $5k → 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.
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.

81%of every dollar goes to organizations it has funded before.
$1.2M · 4 repeat orgs$288k to everyone else

4 repeat relationships: 2 still active in FY2025, 2 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

4
9

Total granted

$1.2M
$288k

Median revenue growth · since first grant

+22%
+53%

Still filing today

75%
56%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

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

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

’17’18’19’21’22’23’24’25
HealthAnimalsPhilanthropyYouth DevelopmentCommunity ImprovementEmploymentOther
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

  • EH
    Endeavor Health Clinical Operations
    6× · 2019–2025 · $1.1M · revenue +22%
  • RM
    Ronald McDonald House Global
    3× · 2018–2021 · $135k · revenue +82%
  • EG
    EVANSTON GROWS
    2× · 2023–2024 · $15k · revenue +17%

Funded once

  • IP
    ICE PROGRAM
    one grant, 2017 · $100k
  • IG
    Individual grant recipient
    one grant, 2018 · $50k
  • IG
    Individual grant recipient
    one grant, 2018 · $40k
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
Illinois Children's Healthcare Foundation
Human Services
2
Children's Health Care

We champion the health needs of children and families. we are committed to improving children's health by providing the highest-quality, family centered care, advanced through research and education.

Health
3
Children's Hospital Colorado

To improve the health of children through the provision of high-quality, coordinated programs of patient care, education, research and advocacy.

Health
4
Ann & Robert H Lurie Children's Hospital of Chicago

Ann & robert h. lurie children's hospital of chicago is dedicated to the health and well-being of all children. as the pediatric teaching facility for northwestern university feinberg school of medicine, this commitment drives us to be a…

Health
5
Childrens Hospital of Illinois Medical Group

To support the mission of osf healthcare system, a catholic integrated health care delivery system, through the provision of quality health care services related to comprehensive inpatient and outpatient care for children.

—
6
Children's Hospital Corporation

Provider of pediatric healthcare, education, research & community service

Health
7
Children's Hospital of Chicago Medical Center

We are dedicated to the health and well-being of all children. as the pediatric teaching facility for the northwestern university feinberg school of medicine, this commitment drives us to be a leader in: -pediatric health care delivery…

Health
8
Paws and Claws Rescue Inc

Paws and Claws Cat Rescue is a 501(c)(3) nonprofit dedicated to preventing and alleviating the suffering caused by abuse, neglect, and overpopulation. We help cats mentally and physically heal, and give them a chance to find love, a full…

Animals
9
University of Chicago Medical Center

Our mission at the university of chicago medicine is to provide superior health care through rigorous research, innovative education, and comprehensive care and healing. in partnership with our colleagues, we pursue life-changing…

Health
10
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
11
The Children's Hospital of Philadelphia

The children's hospital of philadelphia, the oldest hospital in the united states dedicated exclusively to pediatrics, strives to be the world leader in the advancement of health care for children by integrating excellent patient care,…

Health
12
Swedish Covenant Health

Swedish Covenant Health follows the mission of Endeavor Health to "help everyone in our communities be their best."

—
How this is measured
The grantee most central to the portfolio’s shape is Children's Cancer Partners of the Carolinas Inc; the most unlike its peers is Endeavor Health Clinical Operations. 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

8 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. 8 of the 13 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)
8/8
Grantees still filing
8/8
Grew since first funded

Where the money sits, by cause and then by grantee

Endeavor Health Clinical Operations: $1,060,000 · HealthEndeavor Health Clinical OperationsRonald McDonald House Global: $135,000 · HealthRonald McDonald House GlobalICE PROGRAM: $100,000 · OtherICE PROGRAMIndividual grant recipient: $50,000 · OtherIndividual grant …Individual grant recipient: $40,000 · OtherIndividual grant …MISFIT MOUNTAIN: $32,500 · OtherMISFIT MOUNTAINBLACKHAWK CHARITIES: $10,000 · OtherCharlies Angels Animal Rescue: $32,500 · AnimalsPAWS CHICAGO: $30,000 · AnimalsEVANSTON GROWS: $15,000 · Community ImprovementChicago Blackhawks Foundation: $10,500 · PhilanthropyCHILDREN'S CANCER PARTNERS OF THE CAROLINAS INC: $10,000 · Youth DevelopmentCURT'S CAFE: $5,000 · Employment
Health$1,195,000Other$232,500Animals$62,500Community Improvement$15,000Philanthropy$10,500Youth Development$10,000Employment$5,000

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 budgetEndeavor Health Clinical Operations: $1,060,000 over 6y, 0.0% of budgetRonald McDonald House Global: $135,000 over 3y, 0.1% of budgetCharlies Angels Animal Rescue: $32,500 over 1y, 10% of budgetPAWS CHICAGO: $30,000 over 1y, 0.2% of budgetEVANSTON GROWS: $15,000 over 2y, 3.9% of budgetChicago Blackhawks Foundation: $10,500 over 1y, 0.4% of budgetCHILDREN'S CANCER PARTNERS OF THE CAROLINAS INC: $10,000 over 1y, 0.4% of budgetCURT'S CAFE: $5,000 over 1y, 0.4% 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.

Morgan Stanley Global…Paypal Charitable Giv…The Bank of America C…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Morgan Stanley Global Impact Funding Trust IncIN10× affinity4 shared granteesties to 5 of 5Hover any node to trace its alignments.Compare side by side →

Open a dossier: Morgan Stanley Global Impact Funding Trust Inc · Paypal Charitable Giving Fund · The Bank of America Charitable Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

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 The Caitlin Bull Foundation funds: left to right is the share of its income from government, bottom to top the share from The Caitlin Bull Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%1%4%8%15%funder's share of their income ↑0%1%3%4%5%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    2report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–5%
    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 13 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

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    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