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· Private foundation

Donald M Slager Sunset Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$521k
Granted FY2025still arriving
43
Grants FY2025still arriving
11
States reached
$153k
Largest
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.

Education$3.5MHealth$190kPublic Safety & Disaster$133kArts & Culture$103kYouth Development$84kHuman Services$69kCrime & Legal$38kEnvironment$15kOther$0
02FY2025 · 43 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k28 grants · $134k
  • $10k–50k14 grants · $235k
  • $50k–250k1 grant · $153k
$5,000
Median grant
11
States reached
$8.9M
Total assets
Largest grants
RecipientAmount
INDIVIDUAL SCHOLARSHIP PROGRAM$152,500
KERN COMMUNITY COLLEGE DISTRICT$41,000
EASTSIDE STUDENT CENTER$20,000
MAMMOTH HOSPITAL$20,000
NORTHERN INYO HEALTHCARE DISTRICT$20,000
SAN DIEGO STATE UNIVERSITY$20,000
UNIVERSITY OF NEVADA RENO$18,500
WESTMONT COLLEGE$16,000
BISHOP SUNRISE ROTARY CLUB$15,000
UNIVERSITY OF CALIF SANTA BARBARA$12,000
MONO COUNTY SEARCH & RESCUE$11,000
INYO COUNTY SEARCH & RESCUE$11,000
NORTHERN INYO HOSPITAL AUXILIARY$10,314
UNIVERSITY OF REDLANDS$10,000
CAL STATE POLYTECHNIC UNIV SLO$10,000
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:

Dollar for dollar, its grants (FY17–25) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 96% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%UNIVERSITY OF CALIFORNIA BERKELEY: $25k → 10%MAMMOTH HOSPITAL: $25k → 10%CAL STATE POLYTECHNIC UNIV SLO: $15k → 12%UNIVERSITY OF REDLANDS: $15k → 14%UNIVERSITY OF NEVADA RENO: $35k → 10%UNIVERSITY OF CALIFORNIA BERKELEY: $15k → 10%MAMMOTH HOSPITAL: $20k → 10%CAL STATE POLYTECHNIC UNIV SLO: $15k → 12%UNIVERSITY OF NEVADA RENO: $35k → 10%UNIVERSITY OF CALIFORNIA BERKELEY: $15k → 10%MAMMOTH HOSPITAL FOUNDATION: $20k → 10%CAL STATE UNIVERSITY SAN MARCOS: $20k → 11%CAL STATE POLYTECHNIC UNIV SLO: $15k → 12%UNIVERSITY OF NEVADA RENO: $35k → 10%UNIVERSITY OF CALIFORNIA BERKELEY: $15k → 10%MAMMOTH HOSPITAL: $20k → 10%CALIFORNIA POLYTECHNIC STATE UNIV: $15k → 12%UNIVERSITY OF NEVADA RENO: $20k → 10%MAMMOTH HOSPITAL: $20k → 10%UNIVERSITY OF NEVADA RENO: $19k → 10%HEALTHCARE TRUST OF MAMMOTH LAKES: $20k → 10%WESTMONT COLLEGE: $16k → 14%MONO COUNTY SEARCH & RESCUE: $16k → 10%SAN DIEGO STATE UNIVERSITY: $25k → 11%SAN DIEGO STATE UNIVERSITY: $20k → 11%KERN COMMUNITY COLLEGE DISTRICT: $41k → 10%BISHOP UNIFIED SCHOOL DISTRICT: $36k → 10%KERN COMMUNITY COLLEGE DISTRICT: $30k → 10%KERN COMMUNITY COLLEGE DISTRICT: $30k → 10%KERN COMMUNITY COLLEGE DISTRICT: $30k → 10%KERN COMMUNITY COLLEGE DISTRICT: $30k → 10%KERN COMMUNITY COLLEGE DISTRICT: $30k → 10%NORTHERN INYO HEALTHCARE DISTRICT: $25k → 10%KERN COMMUNITY COLLEGE DISTRICT: $25k → 10%NORTHERN INYO HEALTHCARE DISTRICT: $20k → 10%NORTHERN INYO HEALTHCARE DISTRICT: $20k → 10%NORTHERN INYO HEALTHCARE DISTRICT: $20k → 10%NORTHERN INYO HEALTHCARE DISTRICT: $20k → 10%NORTHERN INYO HEALTHCARE DISTRICT: $20k → 10%NORTHERN INYO HEALTHCARE DISTRICT: $20k → 10%KERN COMMUNITY COLLEGE DISTRICT: $20k → 10%EASTSIDE STUDENT CENTER: $20k → 10%EASTSIDE STUDENT CENTER: $20k → 10%KERN COMMUNITY COLLEGE DISTRICT: $20k → 10%EASTSIDE STUDENT CENTER: $20k → 10%NORTHERN INYO HEALTHCARE DISTRICT: $20k → 10%BISHOP UNIFIED SCHOOL DISTRICT: $20k → 10%BISHOP UNIFIED SCHOOL DISTRICT: $16k → 10%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

VT
WA
MT
ND
IL
MI
NY
MA
OR
NV
IA
IN
PA
NJ
CA
UT
CO
AZ
TN
OK
GA
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.

91%of every dollar goes to organizations it has funded before.
$3.8M · 78 repeat orgs$370k to everyone else

78 repeat relationships: 30 still active in FY2025, 48 since wound down; 11 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

78
36

Total granted

$3.8M
$312k

Median revenue growth · since first grant

+7%
+40%

Still filing today

24%
42%

New vs renewed · share of each year

In FY2025, 89% of grant dollars renewed an existing relationship; $58k 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
EducationHealthArts & CultureAnimalsEnvironmentYouth 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

  • UO
    UNIVERSITY OF REDLANDS
    7× · 2017–2025 · $70k · revenue +3%
  • NI
    Northern Inyo Hospital Auxiliary
    4× · 2022–2025 · $40k · revenue +4%
  • CM
    CHAMBER MUSIC UNBOUND
    3× · 2017–2019 · $21k · revenue +32%

Funded once

  • SP
    SCHOLARSHIP PROGRAMS
    one grant, 2018 · $95k
  • MH
    Mammoth Hospital Foundationgraduated
    one grant, 2023 · $20k · revenue +219%
  • HT
    HEALTHCARE TRUST OF MAMMOTH LAKES
    one grant, 2017 · $20k
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
Pomona College

Throughout its history, pomona college has educated men and women of exceptional promise. we gather individuals, regardless of financial circumstances, into a small residential community that is strongly rooted in southern california yet…

Education
2
Western New England University

Western new england university, a comprehensive private institution with a tradition of excellence in teaching and scholarship and a commitment to service, awards undergraduate, master's, and doctoral degrees in various departments from…

Education
3
St Marys University of Minnesota

Enriched by the lasallian catholic heritage, saint mary's university of minnesota awakens, nurtures, and empowers learners to ethical lives of service and leadership.

Education
4
Lehigh University

The university's goal in the coming decade is to advance learning through the integration of teaching, research and service to others. the core of this goal is to prepare graduates to engage with the world and lead lives of meaning. to do…

Education
5
Seattle University

Seattle University is dedicated to educating the whole person, to professional formation, and to empowering leaders for a just and humane world.

—
6
Whittier College

Whittier College is a residential four-year liberal arts institution that prepares students from diverse backgrounds to excel in a complex global society. Through challenging, interactive courses, taught by accomplished professors,…

Education
7
Case Western Reserve University

Case Western Reserve University is an independent, research-oriented university with broadly based strengths in health, including medicine, nursing and dentistry; in engineering; in the arts and sciences; and in law, management and social…

Education
8
Wake Forest University

Wake Forest University, a 501(c)(3) institution of higher education, is dedicated to the pursuit of excellence in the liberal arts and in graduate and professional education. The organization is comprised of seven constituent parts: Wake…

Education
9
The Trustees of Grinnell College

To educate students in the liberal arts through free inquiry and the open exchange of ideas.when grinnell college framed its charter in the iowa territory of the united states in 1846, it set forth a mission to educate its students "for…

Education
10
Columbia College Chicago

The organization's mission is to educate students for creative occupations in diverse fields of arts and media.

Education
11
Southern California University of Health Sciences

The mission of southern california university of health sciences (scu) is to educate students as competent, caring and successful practitioners of integrative healthcare. the university is committed to providing excellence in academics,…

Education
12
Coe College

Coe college is a private, four-year co-educational liberal arts college.

Education
How this is measured
The grantee most central to the portfolio’s shape is University of San Francisco; the most unlike its peers is Eastside Student Center. 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 128 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)
5
Early backer (in before they grew)
39/43
Grantees still filing
33/43
Grew since first funded

Where the money sits, by cause and then by grantee

INDIVIDUAL SCHOLARSHIP PROGRAM: $969,482 · OtherINDIVIDUAL SCHOLARSHIP PROGRAMKERN COMMUNITY COLLEGE DISTRICT: $256,000 · OtherKERN COMMUNITY COLLEGE DISTRICTUNIVERSITY OF NEVADA RENO: $188,500 · OtherUNIVERSITY OF NEVADA RENONORTHERN INYO HEALTHCARE DISTRICT: $180,000 · OtherUNIVERSITY OF CALIFORNIA- DAVIS: $145,000 · OtherBISHOP SUNRISE ROTARY CLUB: $132,000 · Other+85 more: $1,651,433 · Other+85 moreEASTERN SIERRA FOUNDATION: $75,000 · EducationEASTERN SI…UNIVERSITY OF REDLANDS: $70,000 · EducationUNIVERSITY…WESTMONT COLLEGE: $26,000 · EducationWESTMONT C…SWARTHMORE COLLEGE: $20,000 · EducationSWARTHMORE…CALIFORNIA LUTHERAN UNIVERSITY: $15,000 · EducationUNIVERSITY OF SOUTHERN CALIFORNIA: $15,000 · EducationUniversity of San Francisco: $15,000 · EducationTEXAS CHRISTIAN UNIVERSITY: $13,000 · Education+18 more: $122,000 · Education+18 moreUNITED METHODIST SOCIAL SERVICES INC: $43,500 · HealthNorthern Inyo Hospital Auxiliary: $40,314 · HealthMammoth Hospital Foundation: $20,000 · HealthEASTERN SIERRA CANCER ALLIANCE: $12,000 · HealthEASTSIDE STUDENT CENTER: $75,000 · Youth DevelopmentCHAMBER MUSIC UNBOUND: $21,000 · Arts & CultureINYO COUNCIL FOR THE ARTS: $18,800 · Arts & CulturePLAYHOUSE 395: $10,000 · Arts & CultureEASTERN SIERRA INTERPRETIVE ASSOCIATION: $15,000 · EnvironmentWildcare Eastern Sierra: $10,000 · AnimalsEASTERN SIERRA ARTISTS: $5,000 · Community Improvement
Other$3,522,415Education$371,000Health$115,814Youth Development$75,000Arts & Culture$49,800Environment$15,000Animals$10,000Community Improvement$5,000

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 budgetEASTERN SIERRA FOUNDATION: $75,000 over 3y, 12% of budgetEASTSIDE STUDENT CENTER: $75,000 over 4y, 11% of budgetUNIVERSITY OF REDLANDS: $70,000 over 7y, 0.0% of budgetUNITED METHODIST SOCIAL SERVICES INC: $43,500 over 9y, 13% of budgetNorthern Inyo Hospital Auxiliary: $40,314 over 4y, 17% of budgetWESTMONT COLLEGE: $26,000 over 2y, 0.0% of budgetSWARTHMORE COLLEGE: $20,000 over 4y, 0.0% of budgetMammoth Hospital Foundation: $20,000 over 1y, 2.7% of budgetINYO COUNCIL FOR THE ARTS: $18,800 over 2y, 3.3% of budgetCALIFORNIA LUTHERAN UNIVERSITY: $15,000 over 3y, 0.0% of budgetUNIVERSITY OF SOUTHERN CALIFORNIA: $15,000 over 3y, 0.0% of budgetUniversity of San Francisco: $15,000 over 3y, 0.0% of budgetEASTERN SIERRA INTERPRETIVE ASSOCIATION: $15,000 over 2y, 0.9% of budgetTEXAS CHRISTIAN UNIVERSITY: $13,000 over 3y, 0.0% of budgetEASTERN SIERRA CANCER ALLIANCE: $12,000 over 5y, 4.3% of budgetThe Trustees of Princeton University: $10,000 over 2y, 0.0% of budgetSETON HILL UNIVERSITY: $10,000 over 2y, 0.0% of budgetOREGON COLLEGE OF ART AND CRAFT: $10,000 over 2y, 0.1% of budgetTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK: $10,000 over 2y, 0.0% of budgetPRESIDENT-BOARD OF TRUSTEES SANTA CLARA COLLEGE: $10,000 over 2y, 0.0% of budgetWildcare Eastern Sierra: $10,000 over 3y, 4.5% of budgetENDICOTT COLLEGE: $10,000 over 2y, 0.0% of budgetPLAYHOUSE 395: $10,000 over 2y, 9.3% of budgetTHE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY: $10,000 over 1y, 0.0% of budgetInyo-Mono Assn for the Handicapped Inc: $8,000 over 1y, 0.6% of budgetUniversity of Miami: $6,000 over 1y, 0.0% of budgetLEWIS & CLARK COLLEGE: $6,000 over 1y, 0.0% of budgetJOHN JAY COLLEGE OF CRIMINAL JUSTICE STUDENT ACTIVITIES ASSOCIATION INC: $5,000 over 1y, 0.1% of budgetBAYLOR UNIVERSITY: $5,000 over 1y, 0.0% of budgetBelmont University: $5,000 over 1y, 0.0% of budgetUniversity of Michigan: $5,000 over 1y, 2.4% of budgetTHE COLORADO COLLEGE: $5,000 over 1y, 0.0% of budgetCONCORDIA UNIVERSITY IRVINE: $5,000 over 1y, 0.0% of budgetPOINT LOMA NAZARENE UNIVERSITY: $5,000 over 1y, 0.0% of budgetWESTERN UNIVERSITY OF HEALTH SCIENCES: $5,000 over 1y, 0.0% of budgetEASTERN SIERRA ARTISTS: $5,000 over 1y, 2.1% of budgetKNOX COLLEGE: $5,000 over 1y, 0.0% of budgetLAGUNA COLLEGE OF ART & DESIGN: $5,000 over 1y, 0.0% of budgetPresident and Fellows of Middlebury College: $5,000 over 1y, 0.0% of budgetUNITED TRIBES TECHNICAL COLLEGE: $5,000 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.

  • Who funds EASTERN SIERRA FOUNDATION ↗
  • Who funds EASTSIDE STUDENT CENTER ↗
  • Who funds UNIVERSITY OF REDLANDS ↗
  • Who funds UNITED METHODIST SOCIAL SERVICES INC ↗
  • Who funds Northern Inyo Hospital Auxiliary ↗
  • Who funds WESTMONT COLLEGE ↗
  • Who funds CHAMBER MUSIC UNBOUND ↗
  • Who funds SWARTHMORE COLLEGE ↗
  • Who funds Mammoth Hospital Foundation ↗

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.

Margaret Pillsbury FoundationCA13.6× affinity4 shared granteesties to 5 of 5Hover any node to trace its alignments.Compare side by side →

Open a dossier: Margaret Pillsbury Foundation · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · National Philanthropic Trust · 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 Donald M Slager Sunset Foundation funds: left to right is the share of its income from government, bottom to top the share from Donald M Slager Sunset Foundation. Bigger dots raise more.

2025
’20’21’22’23’24’25
no gov · 00%6%25%56%100%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 2%
  • The Trustees of Princeton University: 12% of income from government
  • University of Miami: 5% of income from government
  • Lewis & Clark College: 2% of income from government
  • President and Fellows of Middlebury College: 0% of income from government
  • Endicott College: 0% of income from government
no gov moneyreceives it· size = income
0get no government money at all
8report 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.
05Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to Donald M Slager Sunset Foundation?

Find your warmest path to Donald M Slager Sunset Foundation 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 128 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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