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Plinth

· Private foundation

Edward Payson Irwin and Bernice Piilani Irwin

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.

$20k
Granted FY2025still arriving
8
Grants FY2025still arriving
5
States reached
$6k
Largest
01What you fund
01100% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20182025.

Education$160k
02FY2025 · 8 grants

Where the money goes

Your grants by size, and where they go.

$2,000
Median grant
5
States reached
$573k
Total assets
Largest grants
RecipientAmount
UNIV OF HAWAII - MANOA$6,000
UNIVERSITY OF PHOENIX$2,000
UNIV OF HAWAII - HILO$2,000
UTAH TECH UNIVERSITY$2,000
ARIZONA STATE UNIVERSITY$2,000
GRAND CANYON UNIVERSITY$2,000
UNIVERSITY OF SOUTHERN CALIFORNIA$2,000
SYRACUSE UNIVERSITY$2,000
02The need
03

Do your dollars go where the need is?

Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.

show:

Dollar for dollar, your grants (FY18–25) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 51% of your dollars go to grantees based in above-average-need neighborhoods. Your grants spread fairly evenly across need levels.

area typical 10%ARIZONA STATE UNIVERSITY: $2k → 11%CHAPMAN UNIVERSITY: $7k → 10%POINT LOMA NAZARENE UNIVERSITY: $2k → 11%UNIVERSITY OF SOUTHERN CALIFORNIA: $2k → 14%UNIV OF HAWAII - MANOA: $10k → 9%UNIV OF HAWAII - HILO: $6k → 15%CUNY QUEENS COLLEGE: $2k → 13%SYRACUSE UNIVERSITY: $2k → 14%NEW YORK UNIVERSITY: $2k → 17%MARYVILLE UNIVERSITY OF SAINT LOUIS: $2k → 11%GEORGE FOX UNIVERSITY: $3k → 11%UNIVERSITY OF OREGON: $2k → 15%WEBER STATE UNIVERSITY: $3k → 9%UTAH TECH UNIVERSITY: $2k → 10%UTAH STATE UNIVERSITY: $2k → 12%SAINT MARTIN'S UNIVERSITY: $2k → 9%PACIFIC LUTHERAN UNIVERSITY: $2k → 9%EASTERN WASHINGTON UNIVERSITY: $2k → 12%WHEATON COLLEGE: $2k → 7%WASHINGTON COLLEGE: $2k → 12%ARIZONA STATE UNIVERSITY: $2k → 11%CHAPMAN UNIVERSITY: $2k → 10%BIOLA UNIVERSITY: $2k → 14%UNIV OF HAWAII - MANOA: $9k → 9%UNIVERSITY OF HAWAII: $4k → 15%NEW YORK UNIVERSITY: $2k → 17%PACIFIC LUTHERAN UNIVERSITY: $2k → 9%ARIZONA STATE UNIV: $2k → 11%CHAPMAN UNIVERSITY: $2k → 10%UNIV OF HAWAII - MANOA: $7k → 9%UNIV OF HAWAII - HILO: $2k → 15%GRAND CANYON UNIVERSITY: $2k → 11%LOYOLA MARYMOUNT UNIVERSITY: $2k → 14%UNIV OF HAWAII - MANOA: $6k → 9%UNIV OF HAWAII - HILO: $2k → 15%GRAND CANYON UNIVERSITY: $2k → 11%LOYOLA MARYMOUNT UNIVERSITY: $2k → 14%UNIV OF HAWAII - MANOA: $6k → 9%UNIV OF HAWAII - HILO: $2k → 15%UNIV OF HAWAII - MANOA: $5k → 9%UNIV OF HAWAII - HILO: $2k → 15%UNIV OF HAWAII - MANOA: $4k → 9%UNIV OF HAWAII - HILO: $2k → 15%UNIV OF HAWAII - MANOA: $4k → 9%CHAMINADE UNIVERSITY OF HONOLULU: $2k → 9%HAWAII PACIFIC UNIVERSITY: $2k → 9%UNIVERSITY OF HAWAII - WEST OAHU: $2k → 9%UNIVERSITY OF HAWAII - WEST OAHU: $2k → 9%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.

Which US states your grants reach

WA
IL
NY
OR
NV
CA
UT
CO
MO
MD
AZ
HI

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.

03Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

75%of every dollar goes to organizations you’ve funded before.
$118k · 11 repeat orgs$39k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +41% since the first grant, against +27% for the ones you funded once.

11 repeat relationships — 4 still active in FY2025, 7 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

11
16

Total granted

$118k
$33k

Median revenue growth · since first grant

+41%
+27%

Still filing today

45%
44%

New vs renewed · share of each year

In FY2025, 67% of grant dollars renewed an existing relationship; $6k went to new ones.

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

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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

  • CU
    CHAPMAN UNIVERSITY
    3× · 2018–2022 · $11k · revenue +46%
  • LM
    LOYOLA MARYMOUNT UNIVERSITY
    2× · 2019–2020 · $4k · revenue +41%
  • GC
    Grand Canyon University
    2× · 2021–2025 · $4k · revenue +27%

Funded once

  • UO
    UNIVERSITY OF HAWAII
    one grant, 2022 · $4k
  • WS
    WEBER STATE UNIVERSITY
    one grant, 2022 · $3k
  • GF
    GEORGE FOX UNIVERSITYgraduated
    one grant, 2020 · $3k · revenue +27%

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
California Lutheran University

The mission of the university is to educate leaders for a global society who are strong in character and judgment, confident in their identity and vocation, and committed to service and justice.

Education
2
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
3
Lewis & Clark College

Lewis & clark is a premier private higher education institution offering an exceptional education in an inclusive environment. by fostering critical thinking, innovation, creativity, civic engagement, and leadership, both inside and…

Education
4
The Catholic University of America

As the national university of the catholic church in the united states, founded and sponsored by the bishops of the country with the approval of the holy see, the catholic university of america is committed to being a comprehensive…

Education
5
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
6
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
7
Texas Christian University

Texas christian university is an institution of higher education which includes nine major academic units: liberal arts, science and engineering, business, education, fine arts, communication, honors, nursing and health sciences, and the…

Education
8
St Mary's University

St. marys university, as a catholic marianist university, fosters the formation of people in faith and educates leaders for the common good through community, integrated liberal arts and professional education, and academic excellence.

9
John Brown University

John brown university (jbu) provides christ-centered education that prepares students to honor god and serve others by developing their intellectual, spiritual, and professional lives. (continued on schedule o)jbu serves traditional…

Education
10
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
11
Augsburg University

Augsburg university educates students to be informed citizens, thoughtful stewards, critical thinkers, and responsible leaders.the augsburg experience is supported by an engaged community that is committed to intentional diversity in its…

Education
12
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

For reference, the grantee most central to the portfolio’s shape is Loyola Marymount University and the most unlike its peers is New York University. 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

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

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 15 of the 32 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

0
Load-bearing (≥25% of a budget)
0
Early backer (in before they grew)
15/15
Grantees still filing
12/15
Grew since you first funded

Where your money sits — by cause, then by grantee

UNIV OF HAWAII - MANOA — $50,400 · OtherUNIV OF HAWAII - MANOAUNIVERSITY OF NEVADA - LV — $15,050 · OtherUNIVERSITY OF NEVADA - LVUNIVERSITY OF HAWAII SYSTEM — $14,250 · OtherUNIVERSITY OF HAWAII SYSTEMARIZONA STATE UNIVERSITY — $5,200 · OtherUNIVERSITY OF HAWAII — $4,000 · Other+12 more — $25,225 · Other+12 moreCHAPMAN UNIVERSITY — $10,600 · EducationCHAPMAN UNIVERSITYLOYOLA MARYMOUNT UNIVERSITY — $4,000 · EducationLOYOLA MARYMOUNT UNIVERSITYGrand Canyon University — $4,000 · EducationGrand Canyon UniversityPacific Lutheran University — $3,800 · EducationPacific Lutheran UniversityNew York University — $3,350 · EducationNew York UniversityGEORGE FOX UNIVERSITY — $3,000 · EducationGEORGE FOX UNIVERSITYUNIVERSITY OF SOUTHERN CALIFORNIA — $2,000 · EducationBIOLA UNIVERSITY INC — $2,000 · EducationSYRACUSE UNIVERSITY — $2,000 · EducationWheaton College — $2,000 · EducationPOINT LOMA NAZARENE UNIVERSITY — $2,000 · EducationHAWAII PACIFIC UNIVERSITY — $2,000 · EducationWASHINGTON COLLEGE — $2,000 · EducationSAINT MARTIN'S UNIVERSITY — $1,800 · EducationCHAMINADE UNIVERSITY OF HONOLULU — $1,800 · Education
Other$114,125Education$46,350

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$100Mgrantee revenue →↑ your share of their budgetCHAPMAN UNIVERSITY — $10,600 over 3y, 0.0% of budgetLOYOLA MARYMOUNT UNIVERSITY — $4,000 over 2y, 0.0% of budgetGrand Canyon University — $4,000 over 2y, 0.0% of budgetPacific Lutheran University — $3,800 over 2y, 0.0% of budgetNew York University — $3,350 over 2y, 0.0% of budgetGEORGE FOX UNIVERSITY — $3,000 over 1y, 0.0% of budgetUNIVERSITY OF SOUTHERN CALIFORNIA — $2,000 over 1y, 0.0% of budgetBIOLA UNIVERSITY INC — $2,000 over 1y, 0.0% of budgetSYRACUSE UNIVERSITY — $2,000 over 1y, 0.0% of budgetWheaton College — $2,000 over 1y, 0.0% of budgetPOINT LOMA NAZARENE UNIVERSITY — $2,000 over 1y, 0.0% of budgetHAWAII PACIFIC UNIVERSITY — $2,000 over 1y, 0.0% of budgetWASHINGTON COLLEGE — $2,000 over 1y, 0.0% of budgetSAINT MARTIN'S UNIVERSITY — $1,800 over 1y, 0.0% of budgetCHAMINADE UNIVERSITY OF HONOLULU — $1,800 over 1y, 0.0% of budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.

  • Who funds CHAPMAN UNIVERSITY
  • Who funds LOYOLA MARYMOUNT UNIVERSITY
  • Who funds Grand Canyon University
  • Who funds Pacific Lutheran University
  • Who funds New York University
  • Who funds GEORGE FOX UNIVERSITY
  • Who funds UNIVERSITY OF SOUTHERN CALIFORNIA
  • Who funds BIOLA UNIVERSITY INC
  • Who funds SYRACUSE UNIVERSITY
  • Who funds Wheaton College
  • Who funds POINT LOMA NAZARENE UNIVERSITY
  • Who funds HAWAII PACIFIC UNIVERSITY
  • Who funds WASHINGTON COLLEGE
  • Who funds SAINT MARTIN'S UNIVERSITY
  • Who funds CHAMINADE UNIVERSITY OF HONOLULU

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a set of overlaps that mostly run through you, not between each other.

Fidelity Investments Charitable Gift FundMA6× affinity4 shared granteesties to 0 of 0Hover any node to trace its alignments.Compare side by side →

Open a dossier: Fidelity Investments Charitable Gift Fund

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.

Government reliance of your grantees

Every dot is one organization Edward Payson Irwin and Bernice Piilani Irwin funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.

2025
202122232425
no gov · 00%0%1%3%5%your share of their income ↑0%5%10%15%20%share of the org’s income from governmentmedian 3%
  • George Fox University3% of income from government
  • Washington College0% of income from government
no gov moneyreceives it· size = income
0get no government money at all
0rely on government for over half their income
⤢ axis zoomed · 0–20%
typical government reliance, FY2025

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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.

On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 32 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

Generated from your IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12–24 months behind; figures are dated accordingly.

Source object · view filing

More from the funding graph