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· Private foundation

GK Grout 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.

$741k
Granted FY2025still arriving
5
Grants FY2025still arriving
4
States reached
$699k
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, FY2023 to 2024.

Human Services$1.4MPhilanthropy$93kPublic Benefit$74kRecreation & Sports$30kEnvironment$10kAnimals$10kInternational$10kArts & Culture$4k
02FY2025 · 5 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k3 grants · $9k
  • $10k–50k1 grant · $33k
  • $250k+1 grant · $699k
$5,000
Median grant
4
States reached
$23M
Total assets
Largest grants
RecipientAmount
Greater Horizons Donor Advised Fund$698,985
Morgan Stanley Global Impact Fundin$33,333
Sun Valley Policy Forum$5,000
Sun Valley Museum of Art$2,158
Sherman Library and Gardens$2,000
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 (FY24–24, $10k) land where the poverty rate runs at 14%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%Edward Charles Foundation: $10k → 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.

96%of every dollar goes to organizations it has funded before.
$2.2M · 5 repeat orgs$103k to everyone else

5 repeat relationships: 4 still active in FY2025, 1 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

5
6

Total granted

$2.2M
$101k

Median revenue growth · since first grant

0%
+7%

Still filing today

40%
100%

New vs renewed · share of each year

In FY2025, 100% of grant dollars renewed an existing relationship; $2k went to new ones.

50%100%’23’24’25
RenewedFirst-time

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

’23’24’25
Public BenefitRecreation & SportsAnimalsPhilanthropyHuman ServicesEducationOther
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

  • GH
    Greater Horizons Donor Advised Fund
    3× · 2023–2025 · $2.1M
  • MS
    Morgan Stanley Global Impact Fundin
    3× · 2023–2025 · $100k
  • HG
    HIGHER GROUND USA INC
    2× · 2023–2024 · $30k · revenue -9%

Funded once

  • THE HERITAGE FOUNDATIONgraduated
    one grant, 2023 · $50k · revenue +33%
  • TT
    The Transparency Foundation
    one grant, 2023 · $20k · revenue -65%
  • EC
    EDWARD CHARLES FOUNDATION
    one grant, 2024 · $10k · revenue +2%
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
The Trust for Public Land

The trust for public land creates parks and protects land for people, ensuring healthy, livable communities for generations to come. in the past year, we helped communities to plan for parks and conservation, fund parks and conservation,…

Environment
2
Santa Fe Community Foundation

The santa fe community foundation inspires philanthropic generosity, strengthens nonprofits, and fosters positive change to build a more vibrant, healthy, and resilient region. the foundation's vision is a thriving northern new mexico,…

Philanthropy
3
Community Foundation Santa Cruz County

To promote philanthropy to make santa cruz county a better place to live, now and in the future.we bring together people, ideas, and resources to inspire philanthropy and accomplish great things.

Philanthropy
4
The San Diego Foundation

The san diego foundation inspires enduring philanthropy and enables community solutions to improve the quality of life in our region.

Philanthropy
5
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.

—
6
Us - China Policy Foundation
—
7
Seattle Foundation

Seattle foundation's mission is to ignite powerful and rewarding philanthropy to make greater seattle a stronger, more vibrant community for all.

Philanthropy
8
Climate Imperative Foundation

Climate imperative foundation's mission is to employ science and economics to cut global carbon emissions to secure a better future for all.

Environment
9
Ucsf Foundation Investment Company

The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.

Education
10
Naval Postgraduate School Foundation Inc

Our mission is to support the naval postgraduate school by providing funding and programmatic support for education, research, technology development, institutional initiatives, and community programs that advance national security and…

Education
11
Massachusetts Taxpayers Foundation Inc

Massachusetts taxpayers foundation provides public & private sector decision makers with accurate, timely, unbiased research & constructive solutions that drive public policy in order to strengthen the state's finances & position the…

Public Benefit
12
Arizona Community Foundation

To lead, serve and collaborate to mobilize enduring philanthropy for a better arizona.

Philanthropy
How this is measured
The grantee most central to the portfolio’s shape is The Heritage Foundation; the most unlike its peers is The Pacific Treasure Foundation. 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

9 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. 9 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)
0
Early backer (in before they grew)
9/9
Grantees still filing
4/9
Grew since first funded

Where the money sits, by cause and then by grantee

Greater Horizons Donor Advised Fund: $2,097,319 · OtherGreater Horizons Donor Advised FundMorgan Stanley Global Impact Fundin: $99,999 · Other+3 more: $17,808 · OtherTHE HERITAGE FOUNDATION: $50,000 · Public BenefitThe Transparency Foundation: $20,000 · Public BenefitHIGHER GROUND USA INC: $30,000 · Recreation & SportsHAWAII COMMUNITY FOUNDATION: $25,000 · PhilanthropyTHE PACIFIC TREASURE FOUNDATION: $1,000 · PhilanthropyEDWARD CHARLES FOUNDATION: $10,000 · Human ServicesZOOLOGICAL SOCIETY OF SAN DIEGO: $10,000 · AnimalsSUN VALLEY POLICY FORUM INC: $9,000 · Education
Other$2,215,126Public Benefit$70,000Recreation & Sports$30,000Philanthropy$26,000Human Services$10,000Animals$10,000Education$9,000

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 budgetTHE HERITAGE FOUNDATION: $50,000 over 1y, 0.1% of budgetHIGHER GROUND USA INC: $30,000 over 2y, 0.4% of budgetHAWAII COMMUNITY FOUNDATION: $25,000 over 1y, 0.0% of budgetThe Transparency Foundation: $20,000 over 1y, 5.6% of budgetEDWARD CHARLES FOUNDATION: $10,000 over 1y, 0.0% of budgetZOOLOGICAL SOCIETY OF SAN DIEGO: $10,000 over 1y, 0.0% of budgetSANTA CATALINA ISLAND CONSERVANCY: $10,000 over 1y, 0.1% of budgetSUN VALLEY POLICY FORUM INC: $9,000 over 2y, 0.4% of budgetTHE PACIFIC TREASURE FOUNDATION: $1,000 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.

How much its grantees rely on government

Each dot is one organization GK Grout Foundation funds: left to right is the share of its income from government, bottom to top the share from GK Grout Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%1%3%6%10%funder's share of their income ↑0%5%10%15%20%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    1report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–20%
    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 GK Grout Foundation?

    Find your warmest path to GK Grout 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 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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