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The Tiller Family Foundation at a glance

· Private foundation

The Tiller Family Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$25k
Granted FY2024still arriving
3
Grants FY2024still arriving
3
States reached
$10k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0197% classified

What it funded, over time

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

Environment$750kEducation$204kArts & Culture$115kCommunity Improvement$100kHealth$98kPhilanthropy$64kSocial Science$40kScience & Tech$26kOther$0
02FY2024 · 3 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k1 grant · $5k
  • $10k–50k2 grants · $20k
$10,000
Median grant
3
States reached
$80k
Total assets
Largest grants
RecipientAmount
CATHOLIC SCHOOLS FOUNDATION$10,000
GAVIN FARRELL FOUNDATION$10,000
AMERICAN HEART ASSOCIATION$5,000
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 (FY22–24, $30k) land where the poverty rate runs at 17%, against an area that typically sits at 9%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%GAVIN FARRELL FOUNDATION: $10k → 17%GAVIN FARRELL FOUNDATION: $10k → 17%GAVIN FARRELL FOUNDATION: $10k → 17%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

MI
NY
MA
OH
PA
CT
CA
KY
KS
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.

85%of every dollar goes to organizations it has funded before.
$1.2M · 15 repeat orgs$202k to everyone else

15 repeat relationships: 3 still active in FY2024, 12 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

15
19

Total granted

$1.2M
$202k

Median revenue growth · since first grant

+15%
+40%

Still filing today

73%
42%

New vs renewed · share of each year

In FY2024, 100% of grant dollars renewed an existing relationship; $0 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
HealthArts & CultureEducationEnvironmentCommunity ImprovementYouth DevelopmentOther
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

  • CS
    CATHOLIC SCHOOLS FOUNDATION INC
    6× · 2019–2024 · $60k · revenue +20%
  • WH
    WESTCOTT HOUSE FOUNDATION
    2× · 2017–2018 · $55k · revenue +19%
  • TRUSTEES OF BOSTON COLLEGE
    3× · 2017–2020 · $40k · revenue +70%

Funded once

  • GP
    GROVE PARK FOUNDATION INC
    one grant, 2017 · $50k · revenue 0%
  • AI
    AMERICAN IMPACT CAPITAL FOUNDATION INC
    one grant, 2019 · $50k · 39% of their budget
  • IG
    Individual grant recipient
    one grant, 2017 · $25k
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
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
2
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
3
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
4
Springfield College

The mission of springfield college is to educate students in spirit, mind and body for leadership in service to others by building on a foundation of the college's humanics philosophy, academic excellence, service, and student success.…

Education
5
Stony Brook Internists University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
6
Augustana College

Rooted in the liberal arts & sciences & lutheran expression of the christian faith, & is committed to offering a challenging education that develops qualities of mind, spirit, & body necessary for a rewarding life of leadership & service…

Education
7
Furman University

The primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.

Education
8
Stony Brook Surgical Associates University Faculty Practice Corporation

Provide clinical instruction to and supervision of medical school students, interns and residents and, incident thereto, rendering professional services.

Health
9
St Francis College

St. francis college is an independent, coeducational institution of higher education chartered by an act of the regents of the university of the state of new york on april 10, 1957.

Education
10
Saint Anselm College

Saint anselm is a catholic, benedictine college providing all of its students a distinctive liberal arts education that incorporates opportunities for professional and career preparation. it does so in a learning community that encourages…

Education
11
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
12
Wheaton College

Wheaton college provides a transformative liberal arts education, combining theory and practice, for intellectually curious students within a collaborative and vibrant extended community and network that values and strives to create an…

Education
How this is measured
The grantee most central to the portfolio’s shape is Inner City Scholarship Fund Inc; the most unlike its peers is American Impact Capital Foundation 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

23 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. 23 of the 37 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.

2
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
22/23
Grantees still filing
16/23
Grew since first funded

Where the money sits, by cause and then by grantee

SUSTAINABLE AMERICA INC: $750,000 · EnvironmentSUSTAINABLE AMERICA INCUNIVERSITY OF TEXAS - AUSTIN: $80,000 · OtherUNIVERSITY OF TEXAS - A…AMERICAN IMPACT CAPITAL FOUNDATION INC: $50,000 · OtherAMERICAN IMPACT CAPITAL…HARVARD BUSINESS SCHOOL: $40,000 · OtherHARVARD BUSINESS SCHOOLIndividual grant recipient: $25,000 · OtherIndividual grant recipi…INNER CITY SCHOLARSHIP FUND INC: $20,000 · OtherINNER CITY SCHOLARSHIP …GAVIN FARRELL FOUNDATION: $30,000 · OtherGAVIN FARRELL FOUNDATIO…REFED INC: $25,000 · OtherREFED INC+15 more: $37,350 · Other+15 moreCATHOLIC SCHOOLS FOUNDATION INC: $60,000 · EducationCATHOLIC …TRUSTEES OF BOSTON COLLEGE: $40,000 · EducationTRUSTEES …President and Fellows of Harvard College: $25,000 · EducationPresident…+1 more: $250 · EducationWESTCOTT HOUSE FOUNDATION: $55,000 · Arts & CultureSPRINGFIELD MUSEUM OF ART: $40,060 · Arts & CultureMONTAUK HISTORICAL SOCIETY: $10,000 · Arts & CultureDAYTON CHILDREN'S HOSPITAL: $37,500 · HealthAmerican Heart Association Inc: $10,000 · HealthBOSTON COMMUNITY PEDIATRICS INC: $10,000 · HealthSEMPER FI & AMERICA'S FUND: $5,000 · HealthTHE INDEPENDENT CHARITABLE GIFT FUND: $50,000 · PhilanthropyTHE SPRINGFIELD FOUNDATION: $8,333 · PhilanthropyGROVE PARK FOUNDATION INC: $50,000 · Community Improvement
Environment$750,000Other$307,350Education$125,250Arts & Culture$105,060Health$62,500Philanthropy$58,333Community Improvement$50,000

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 budgetSUSTAINABLE AMERICA INC: $750,000 over 6y, 89% of budgetCATHOLIC SCHOOLS FOUNDATION INC: $60,000 over 6y, 0.1% of budgetWESTCOTT HOUSE FOUNDATION: $55,000 over 2y, 9.5% of budgetGROVE PARK FOUNDATION INC: $50,000 over 1y, 1.4% of budgetAMERICAN IMPACT CAPITAL FOUNDATION INC: $50,000 over 1y, 39% of budgetTHE INDEPENDENT CHARITABLE GIFT FUND: $50,000 over 1y, 0.8% of budgetSPRINGFIELD MUSEUM OF ART: $40,060 over 4y, 1.0% of budgetTRUSTEES OF BOSTON COLLEGE: $40,000 over 3y, 0.0% of budgetDAYTON CHILDREN'S HOSPITAL: $37,500 over 4y, 0.0% of budgetGAVIN FARRELL FOUNDATION: $30,000 over 3y, 4.9% of budgetPresident and Fellows of Harvard College: $25,000 over 3y, 0.0% of budgetREFED INC: $25,000 over 1y, 0.3% of budgetINNER CITY SCHOLARSHIP FUND INC: $20,000 over 2y, 0.1% of budgetAmerican Heart Association Inc: $10,000 over 2y, 0.0% of budgetMONTAUK HISTORICAL SOCIETY: $10,000 over 1y, 0.5% of budgetUniversity of Michigan: $10,000 over 1y, 3.8% of budgetBOSTON COMMUNITY PEDIATRICS INC: $10,000 over 1y, 0.5% of budgetTHE SPRINGFIELD FOUNDATION: $8,333 over 3y, 0.0% of budgetSpringfield Arts Council Inc: $7,200 over 5y, 0.3% of budgetSEMPER FI & AMERICA'S FUND: $5,000 over 1y, 0.0% of budgetCENTRAL GEORGIA SOCCER ASSOCIATION: $3,000 over 1y, 0.9% of budgetTHE NEW CANAAN COMMUNITY YOUNG MEN'S CHRISTIAN ASSOCIATION INC: $1,500 over 2y, 0.0% of budgetTHE BOARD OF DIRECTORS OF WITTENBERG COLLEGE: $250 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.

Walter S Quinlan Foun…Della Selsor Tr UwHarry and Violet Turn…Wilson Sheehan Founda…Park National Corpora…National Philanthropi…Morgan Stanley Global…Vanguard Charitable E…American Endowment Fo…Donor Advised Charita…Fidelity Investments …American Online Givin…
Walter S Quinlan FoundationNH13.6× affinity4 shared granteesties to 9 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Walter S Quinlan Foundation · Della Selsor Tr Uw · Harry and Violet Turner 95 Charitable Trust · Wilson Sheehan Foundation · Park National Corporation Foundation · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · American Endowment Foundation · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · American Online Giving 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 The Tiller Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The Tiller Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%6%23%51%90%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 7%
  • Boston Community Pediatrics Inc: 10% of income from government
  • President and Fellows of Harvard College: 7% of income from government
  • Trustees of Boston College: 3% of income from government
no gov moneyreceives it· size = income
1get no government money at all
5report 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 37 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.

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