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· Private foundation

The Duke Family Foundation Inc

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.

$141k
Granted FY2025still arriving
6
Grants FY2025still arriving
2
States reached
$64k
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.

Youth Development$741kEducation$110kHealth$75kRecreation & Sports$64kHousing & Shelter$50kCommunity Improvement$13kFood & Nutrition$10kPhilanthropy$8kOther$0
02FY2025 · 6 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k3 grants · $12k
  • $10k–50k1 grant · $13k
  • $50k–250k2 grants · $117k
$12,500
Median grant
2
States reached
$2.6M
Total assets
Largest grants
RecipientAmount
IDAHO YOUTH RANCH$64,000
BIG BROTHERS BIG SISTERS SW IDAHO$52,545
KILLEBREW THOMPSON MEMORIAL$12,500
INSPIRE EXCELLENCE$5,500
BOISE STATE UNIVERSITY$4,500
RONALD MCDONALD HOUSE CHARITIES$1,750
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 (FY20–25, $353k) land where the poverty rate runs at 8%, against an area that typically sits at 5%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 5%CHALLIS SENIOR CITIZENS INC: $5k → 13%CATCH INC: $17k → 8%CATCH INC: $17k → 8%CATCH INC: $17k → 8%IDAHO YOUTH RANCH: $69k → 8%IDAHO YOUTH RANCH: $66k → 8%IDAHO YOUTH RANCH: $64k → 8%IDAHO YOUTH RANCH: $55k → 8%IDAHO YOUTH RANCH: $45k → 8%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.

91%of every dollar goes to organizations it has funded before.
$986k · 16 repeat orgs$98k to everyone else

16 repeat relationships: 6 still active in FY2025, 10 since wound down.

How the two cohorts compare

Re-uppedFunded once

Organizations

16
6

Total granted

$986k
$98k

Median revenue growth · since first grant

+31%
+692%

Still filing today

50%
67%

New vs renewed · share of each year

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

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
Human ServicesEducationRecreation & SportsInternationalHealthCommunity ImprovementOther
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

  • BA
    Bronco Athletic Association Inc
    4× · 2017–2023 · $64k · revenue +31%
  • CI
    CATCH INC
    3× · 2021–2023 · $50k · revenue +36%
  • HK
    HARMON KILLEBREW-DANNY THOMPSON MEMORIAL CANCER FOUNDATION INC
    3× · 2023–2025 · $29k · revenue +11%

Funded once

  • SE
    SALMON EDUCATION FOUNDATION INCgraduated
    one grant, 2019 · $65k · revenue +692% · 81% of their budget
  • SL
    ST LUKES CANCER INSTITUTE
    one grant, 2021 · $17k
  • CS
    Challis Senior Citizens Incgraduated
    one grant, 2020 · $5k · revenue +40%
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
Idaho State University Foundation Inc

The mission of the Foundation is to stimulate voluntary private support from alumni, parents, friends, corporations, foundations, and others for the benefit of the University and its students.

Education
2
Idaho Ffa Foundation Inc

To Promote Premier Leadership, Personal Growth and Career Success of Idaho FFA Members and Agricultural Education Students by Providing Strategic Financial Resources for the Idaho FFA Association

Youth Development
3
Indigenous Idaho Alliance Inc
Civil Rights
4
Idaho Technology Council Foundation

The corporation advances charitable and educational initiatives as an affiliate of the Idaho Technology Council. It promotes digiatl literacy technology education and workforce readiness across Idaho by funding and delivering…

Science & Tech
5
Idaho Medical Association Foundation Inc
Health
6
Idaho Forest Restoration Partnership
Environment
7
University of Idaho Foundation Inc

The mission of the University of Idaho Foundation, Inc. is to inspire, manage, and distribute private support to enhance the excellence of the University of Idaho.

Education
8
Idaho Legal Aid Services Inc Idaho Legal Aid Services Inc

Idaho legal aid services inc is a statewide nonprofit law firm dedicated to providing equal access for low-income people through quality advocacy and education

Crime & Legal
9
Idaho Technology Council Inc

To help technology companies in Idaho start, grow, and thrive.

—
10
Blue Cross of Idaho Foundation for Health Inc
Health
11
Kids' Chance of Idaho

Scholarships

Education
12
Idaho Law Foundation Inc

The Idaho Law Foundation maintains a continuing legal education program and administers grants to 1) educate the public, 2) provide legal services to the state's indigent, 3) develop programs to improve the administration of justice and…

—
How this is measured
The grantee most central to the portfolio’s shape is Make-a-Wish Foundation of Idaho; the most unlike its peers is Challis Senior Citizens 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

12 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. 12 of the 22 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.

1
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
12/12
Grantees still filing
9/12
Grew since first funded

Where the money sits, by cause and then by grantee

BIG BROTHERS BIG SISTERS SW IDAHO: $380,295 · OtherBIG BROTHERS BIG SISTERS SW IDAHOSALVATION ARMY BUILDING FUTURES: $62,500 · OtherSALVATION ARMY BUILDING FUTURESMAKE-A-WISH FOUNDATION OF IDAHO: $28,200 · OtherBOISE STATE UNIVERSITY COBE: $19,300 · Other+9 more: $57,843 · Other+9 moreIDAHO YOUTH RANCH INC: $298,100 · Human ServicesIDAHO YOUTH RANCH INCCATCH INC: $49,500 · Human ServicesCATCH INC+1 more: $5,000 · Human ServicesSALMON EDUCATION FOUNDATION INC: $65,000 · EducationBoise State University Foundation Inc: $3,530 · EducationBronco Athletic Association Inc: $64,320 · Recreation & SportsHARMON KILLEBREW-DANNY THOMPSON MEMORIAL CANCER FOUNDATION INC: $29,300 · HealthINSPIRE EXCELLENCE INC: $13,000 · Community ImprovementAnywhere Gives Inc: $8,000 · Philanthropy
Other$548,138Human Services$352,600Education$68,530Recreation & Sports$64,320Health$29,300Community Improvement$13,000Philanthropy$8,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10Mgrantee revenue →↑ funder's share of their budgetIDAHO YOUTH RANCH INC: $298,100 over 5y, 0.2% of budgetSALMON EDUCATION FOUNDATION INC: $65,000 over 1y, 81% of budgetBronco Athletic Association Inc: $64,320 over 4y, 0.9% of budgetCATCH INC: $49,500 over 3y, 0.5% of budgetHARMON KILLEBREW-DANNY THOMPSON MEMORIAL CANCER FOUNDATION INC: $29,300 over 3y, 0.4% of budgetMAKE-A-WISH FOUNDATION OF IDAHO: $28,200 over 4y, 1.1% of budgetINSPIRE EXCELLENCE INC: $13,000 over 3y, 1.9% of budgetAnywhere Gives Inc: $8,000 over 5y, 0.1% of budgetBoise State University Foundation Inc: $3,530 over 2y, 0.0% of budgetSEMILLA NUEVA: $3,190 over 1y, 0.6% of budgetFAMILY ADVOCATE PROGRAM INC: $2,500 over 1y, 0.3% 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 IDAHO YOUTH RANCH INC ↗
  • Who funds SALMON EDUCATION FOUNDATION INC ↗
  • Who funds Bronco Athletic Association Inc ↗
  • Who funds CATCH INC ↗
  • Who funds HARMON KILLEBREW-DANNY THOMPSON MEMORIAL CANCER FOUNDATION INC ↗
  • Who funds MAKE-A-WISH FOUNDATION OF IDAHO ↗
  • Who funds INSPIRE EXCELLENCE INC ↗
  • Who funds Anywhere Gives Inc ↗
  • Who funds Challis Senior Citizens Inc ↗
  • Who funds Boise State University Foundation Inc ↗
  • Who funds SEMILLA NUEVA ↗
  • Who funds FAMILY ADVOCATE PROGRAM INC ↗

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.

Idaho Community Foundation IncID15.4× affinity5 shared granteesties to 8 of 8Hover any node to trace its alignments.Compare side by side →

Open a dossier: Idaho Community Foundation Inc · St Luke's Health System Ltd · Vanguard Charitable Endowment Program · National Philanthropic Trust · The Bank of America Charitable Foundation Inc · American Online Giving 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 Duke Family Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from The Duke Family Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%0%1%3%5%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
    1get 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 · 0–20%
    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 The Duke Family Foundation Inc?

    Find your warmest path to The Duke Family Foundation Inc 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 22 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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