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Jackson Hole One Fly Foundation at a glanceAlso receives grants: funding profile →

· Public charity

Jackson Hole One Fly Foundation

To conserve trout streams and trout habitat

$434k
Granted FY2025still arriving
12
Grants FY2025still arriving
3
States reached
$98k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
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.

Environment$1.8MEducation$50kAnimals$27kRecreation & Sports$13k
02FY2025 · 12 grants

Where the money goes

Grants by size, and the largest recipients.

How this is measured
The 12 grants below total $384,264, the rows itemized in this filing. The $434,419 headline is the total grant expense on the return; the other $50,155 is giving the schedule does not break out (grants under the $5,000 itemization floor, grants to individuals, grants on other schedules). Every figure below describes the itemized rows only.

By grant size · FY2025

  • Under $10k3 grants · $23k
  • $10k–50k8 grants · $264k
  • $50k–250k1 grant · $98k
$36,000
Median grant
3
States reached
$2.0M
Total assets
Largest grants
RecipientAmount
FRIENDS OF THE TETON RIVER$97,555
USGS$48,140
TROUT UNLIMITED$45,000
TROUT UNLIMITED$36,000
PROTECT OUR WATER JACKSON HOLE$36,000
HENRY'S FORK FOUNDATION$36,000
EAST YELLOWSTON TROUT UNLIMITED$27,000
TROUT UNLIMITED$22,500
TROUT UNLIMITED$13,500
TROUT UNLIMITED$9,000
TROUT UNLIMITED$7,069
TROUT UNLIMITED$6,500
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 8%, against an area that typically sits at 8%. 26% of its dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 8%FRIENDS OF THE TETON RIVER: $98k → 7%TROUT UNLIMITED (MATT WOODARD): $16k → 11%HENRY'S FORK FOUNDATION: $36k → 12%MONTANA CONSERVATION GROUP: $14k → 10%TROUT UNLIMITED: $72k → 7%PROTECT OUR WATER JACKSON HOLE: $36k → 5%TROUT UNLIMITED: $36k → 8%EAST YELLOWSTON TROUT UNLIMITED: $27k → 11%UNIVERSITY OF WYOMING FISH WILDLIFE: $40k → 17%WYOMING WILDLIFE FEDERATION: $14k → 17%FRIENDS OF THE TETON RIVER: $58k → 7%HENRY'S FORK FOUNDATION: $36k → 12%GRAND TETON NATIONAL PARK FOUNDATIO: $112k → 5%STAR VALLEY TROUT UNLIMITED: $14k → 8%UNIVERSITY OF WYOMING FISH WILDLIFE: $34k → 17%WYOMING WILDLIFE FEDERATION: $14k → 17%FRIENDS OF THE TETON RIVER: $39k → 7%HENRY'S FORK FOUNDATION: $36k → 12%GRAND TETON NATIONAL PARK FOUNDATIO: $75k → 5%UW FOUNDATION: $50k → 17%FRIENDS OF THE TETON RIVER: $38k → 7%BUREAU OF LAND MANAGEMENT: $23k → 11%HENRY'S FORK FOUNDATION: $18k → 12%GRAND TETON NATIONAL PARK FOUNDATIO: $52k → 5%TETON REGIONAL LAND TRUST: $30k → 7%HENRY'S FORK FOUNDATION: $14k → 12%GRAND TETON NATIONAL PARK FOUNDATIO: $40k → 5%FRIENDS OF THE TETON RIVER: $24k → 7%GRAND TETON NATIONAL PARK FOUNDATION: $18k → 5%FRIENDS OF THE TETON RIVER: $23k → 7%GRAND TETON NATIONAL PARK FOUNDATION: $16k → 5%FRIENDS OF THE TETON RIVER: $20k → 7%GRAND TETON NATIONAL PARK FOUNDATIO: $14k → 5%FRIENDS OF THE TETON RIVER: $15k → 7%TRIANGLE X RANCH: $13k → 5%TROUT UNLIMITED: $56k → 5%WYOMING GAME AND FISH DEPT: $49k → 5%TROUT UNLIMITED: $47k → 5%TROUT UNLIMITED: $45k → 5%TROUT UNLIMITED: $36k → 5%WYOMING GAME AND FISH DEPT: $24k → 5%WYOMING GAME AND FISH DEPT: $23k → 5%TROUT UNLIMITED: $23k → 5%TROUT UNLIMITED: $20k → 5%TROUT UNLIMITED: $20k → 5%TRUST FOR PUBLIC LAND: $18k → 5%TROUT UNLIMITED: $18k → 5%TROUT UNLIMITED: $14k → 5%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.

86%of every dollar goes to organizations it has funded before.
$1.6M · 14 repeat orgs$265k to everyone else

Grantees it renews have grown median revenue +133% since the first grant, against +37% for those funded once.

14 repeat relationships: 4 still active in FY2025, 10 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

14
10

Total granted

$1.6M
$195k

Median revenue growth · since first grant

+133%
+37%

Still filing today

50%
50%

New vs renewed · share of each year

In FY2025, 82% of grant dollars renewed an existing relationship; $70k 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
EnvironmentAnimalsPhilanthropyEducationCivil RightsOther
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

  • TU
    TROUT UNLIMITED INC
    9× · 2017–2025 · $412k · revenue +133%
  • GRAND TETON NATIONAL PARK FOUNDATION
    7× · 2017–2023 · $328k · revenue +113%
  • FO
    FRIENDS OF THE TETON RIVER INC
    7× · 2019–2025 · $276k · revenue +285%

Funded once

  • UO
    UNIVERSITY OF WYOMING FOUNDATION
    one grant, 2022 · $50k · revenue -6%
  • TR
    TETON REGIONAL LAND TRUST INCgraduated
    one grant, 2018 · $30k · revenue +243%
  • NP
    NATIONAL PARK SERVICE
    2× · 2017–2018 · $23k
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
Montana Trout Unlimited

To conserve, protect and restore montana's coldwater fisheries and watersheds.

Recreation & Sports
2
Wyoming Wildlife Advocates

To promote science-based wildlife management that fosters ecosystem health and dynamic equilibrium between species throughout the state of wyoming.

Animals
3
Wood River Land Trust Co

The wood river land trust's mission is to protect and sustain the treasured landscapes and life-giving waters of the wood river valley and to inspire love for this special place for generations to come.

Environment
4
Idaho Wildlife Federation

The Idaho Wildlife Federation (IWF) promotes the conservation of Idaho's wildlife heritage and legacy of sporting opportunities for the current and future generations.

Animals
5
Idaho Forest Restoration Partnership
Environment
6
Upper Missouri Waterkeeper Inc

Upper missouri waterkeeper protects fishable, swimmable, drinkable water throughout the 25,000 square miles of montana's upper missouri river basin of montana. to accomplish this mission we actively engage with citizens, stakeholders and…

Education
7
Swan Valley Connections

Maintain the swan valley's unique natural resources and ensure that a vibrant human community can sustain itself through stewardship, education, economic viability, and conservation on public and private lands.

Environment
8
Wild Salmon Rivers

To conserve functioning salmon/steelhead eco-system at watershed levels, integrate angling activities with basic scientific research, collect raw data, monitor environmental functions, salmon/steelhead population dynamics, public…

Environment
9
Idaho Conservation League Inc

Icl's mission is to create a conservation community and pragmatic, enduring solutions that protect and restore the air you breathe, the water you drink, and the land and wildlife you love.

—
10
Scenic Montana Trails
—
11
The Teton Springs Foundation Inc 01
Philanthropy
12
Wilderness River Foundation
Youth Development
How this is measured
The grantee most central to the portfolio’s shape is Protect Our Water Jackson Hole Inc; the most unlike its peers is Trout Unlimited 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

13 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. 13 of the 27 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)
7
Early backer (in before they grew)
13/13
Grantees still filing
11/13
Grew since first funded

Where the money sits, by cause and then by grantee

WYOMING GAME & FISH DEPARTMENT: $152,245 · OtherWYOMING GAME & FISH DEPARTMENTHENRYS FORK FOUNDATION INC: $139,748 · OtherHENRYS FORK FOUNDATION INCUNIVERSITY OF WYOMING FISH WILDLIFE: $73,232 · OtherUNIVERSITY OF WYOMING FISH WILDLIFEUS GEOLOGICAL SURVEY: $58,140 · OtherUS GEOLOGICAL SURVEYMONTANA STATE UNIVERSITY: $36,969 · OtherMONTANA STATE UNIVERSITYUSDA FOREST SERVICE: $35,000 · OtherUSDA FOREST SERVICETROUT UNLIMITED: $27,000 · OtherNATIONAL PARK SERVICE: $23,400 · OtherAGRICULTURAL RESEARCH SERVICE (USDA): $22,500 · OtherTROUT UNLIMITED (MATT WOODARD): $22,300 · Other+5 more: $50,243 · Other+5 moreTROUT UNLIMITED INC: $411,794 · AnimalsTROUT UNLIMITED INCTROUT UNLIMITED JACKSON HOLE 051: $36,271 · AnimalsTROUT UNLIMITED JACKSON HOLE…WYOMING WILDLIFE FEDERATION: $27,000 · AnimalsWYOMING WILDLIFE FEDERATIONFRIENDS OF THE TETON RIVER INC: $275,937 · EnvironmentFRIENDS OF THE TETON R…PROTECT OUR WATER JACKSON HOLE INC: $36,000 · EnvironmentPROTECT OUR WATER JACK…TETON REGIONAL LAND TRUST INC: $30,000 · EnvironmentTETON REGIONAL LAND TR…THE TRUST FOR PUBLIC LAND: $20,000 · EnvironmentSNAKE RIVER FUND: $14,781 · Environment+1 more: $5,550 · EnvironmentGRAND TETON NATIONAL PARK FOUNDATION: $328,150 · PhilanthropyGRAND TETON NATIONA…UNIVERSITY OF WYOMING FOUNDATION: $50,000 · EducationMONTANA CONSERVATION CORPS INC: $14,000 · Civil Rights
Other$640,777Animals$475,065Environment$382,268Philanthropy$328,150Education$50,000Civil Rights$14,000

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 budgetTROUT UNLIMITED INC: $411,794 over 9y, 0.1% of budgetGRAND TETON NATIONAL PARK FOUNDATION: $328,150 over 7y, 1.6% of budgetFRIENDS OF THE TETON RIVER INC: $275,937 over 7y, 5.0% of budgetHENRYS FORK FOUNDATION INC: $139,748 over 5y, 1.0% of budgetUNIVERSITY OF WYOMING FOUNDATION: $50,000 over 1y, 0.0% of budgetTROUT UNLIMITED JACKSON HOLE 051: $36,271 over 4y, 7.5% of budgetTETON REGIONAL LAND TRUST INC: $30,000 over 1y, 2.3% of budgetWYOMING WILDLIFE FEDERATION: $27,000 over 2y, 2.5% of budgetTHE TRUST FOR PUBLIC LAND: $20,000 over 2y, 0.0% of budgetSNAKE RIVER FUND: $14,781 over 1y, 3.8% of budgetMONTANA CONSERVATION CORPS INC: $14,000 over 1y, 0.1% of budgetTETON SCIENCE SCHOOLS INC: $5,550 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 TROUT UNLIMITED INC ↗
  • Who funds GRAND TETON NATIONAL PARK FOUNDATION ↗
  • Who funds FRIENDS OF THE TETON RIVER INC ↗
  • Who funds HENRYS FORK FOUNDATION INC ↗
  • Who funds UNIVERSITY OF WYOMING FOUNDATION ↗
  • Who funds TROUT UNLIMITED JACKSON HOLE 051 ↗
  • Who funds PROTECT OUR WATER JACKSON HOLE INC ↗
  • Who funds TETON REGIONAL LAND TRUST INC ↗
  • Who funds WYOMING WILDLIFE FEDERATION ↗
  • Who funds THE TRUST FOR PUBLIC LAND ↗
  • Who funds SNAKE RIVER FUND ↗
  • Who funds MONTANA CONSERVATION CORPS INC ↗
  • Who funds TETON SCIENCE SCHOOLS 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.

Community Foundation …National Fish and Wil…PatagoniaorgMarin Community Found…Wyoming Humanities Co…Cross Charitable Foun…The Nature ConservancyThe Miami Foundation …Morgan Stanley Global…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Community Foundation of Jackson HoleWY21.7× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Community Foundation of Jackson Hole · National Fish and Wildlife Foundation · Patagoniaorg · Marin Community Foundation · Wyoming Humanities Council · Cross Charitable Foundation Attn John R Clark · The Nature Conservancy · The Miami Foundation Inc · Morgan Stanley Global Impact Funding Trust 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 Jackson Hole One Fly Foundation funds: left to right is the share of its income from government, bottom to top the share from Jackson Hole One Fly 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%25%50%75%100%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
    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 Jackson Hole One Fly Foundation?

    Find your warmest path to Jackson Hole One Fly 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 27 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 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

    Play a game based on Jackson Hole One Fly’s filings →

    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