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Plinth

· Private foundation

Louise Arnold Maddux Environmental 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.

$46k
Granted FY2025still arriving
46
Grants FY2025still arriving
15
States reached
$1k
Largest
01What you fund
0197% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Environment$152kAnimals$38kFood & Nutrition$29kInternational$21kHousing & Shelter$12kScience & Tech$9kPublic Benefit$5kHealth$4kOther$0
02FY2025 · 46 grants

Where the money goes

Your grants by size, and where they go.

$1,000
Median grant
15
States reached
$1.0M
Total assets
Largest grants
RecipientAmount
HERMITS PEAK WATERSHED ALLIANCE$1,000
CHICAGO ECO HOUSE$1,000
STUDENT CONSERVATION ASSOC$1,000
PROJECT STREET VET$1,000
SANTA FE WATERSHED ASSOC$1,000
HEART & SOUL ANIMAL SANCTUARY$1,000
DOCTORS WITHOUT BORDERS$1,000
Individual grant recipient$1,000
OCEAN CONSERVANCY$1,000
THE FOOD DEPOT$1,000
Individual grant recipient$1,000
UNION OF CONCERNED SCIENTISTS$1,000
SEA TURTLE CONSERVANCY$1,000
ROCKY MTN FIELD INSTITUTE$1,000
EARTH CARE$1,000
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:

Your human-services grants (FY17–25, $11k) land where the poverty rate runs at 12%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 11%THINK NEW MEXICO: $1k → 12%THINK NEW MEXICO: $1k → 12%The Food Depot: $1k → 12%The Food Depot: $1k → 12%THE FOOD DEPOT: $1k → 12%The Food Depot: $1k → 12%The Food Depot: $1k → 12%THE FOOD DEPOT: $1k → 12%The Food Depot: $1k → 12%The Food Depot: $1k → 12%The Food Depot: $1k → 12%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

NH
IL
NY
MA
PA
CA
CO
VA
MD
DE
NM
AR
NC
DC
HI
FL

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.

91%of every dollar goes to organizations you’ve funded before.
$262k · 52 repeat orgs$25k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +53% since the first grant, against 0% for the ones you funded once.

52 repeat relationships — 31 still active in FY2025, 21 since wound down; 15 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

52
10

Total granted

$262k
$10k

Median revenue growth · since first grant

+53%
0%

Still filing today

56%
30%

New vs renewed · share of each year

In FY2025, 67% of grant dollars renewed an existing relationship; $15k 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
EnvironmentInternationalAnimalsFood & NutritionHuman ServicesCommunity ImprovementOther

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

  • CC
    CONEJOS COUNTY CLEAN WATER INC
    9× · 2017–2025 · $9k · revenue +53%
  • TH
    THE HEART AND SOUL ANIMAL SANCTUARY
    9× · 2017–2025 · $9k · revenue +57%
  • THE FOOD DEPOT
    9× · 2017–2025 · $9k · revenue +84%

Funded once

  • NF
    Ngeta Foundation co Estill Putney
    one grant, 2017 · $1k
  • EH
    Espanola Humane Society
    one grant, 2022 · $1k
  • TM
    THE MANZANO CONSERVATION FOUNDATION
    one grant, 2017 · $1k · revenue -55%

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
Sustainable Conservation

Sustainable Conservation advances the collaborative stewardship of Californias land, air, and water for the benefit of nature and people. For over three decades, Sustainable Conservation has built coalitions of people with different…

Environment
2
Resource Renewal Institute

The resource renewal institute facilitates the creation, development and implementation of practical strategies to solve the entire complex environmental problem by addressing it comprehensively.

Environment
3
World Wildlife Fund Inc

Wwf's mission is to conserve nature and reduce the most pressing threats to the diversity of life on earth. (continued on schedule o)

Environment
4
San Juan Citizens Alliance

The San Juan Citizens Alliance advocates for clean air, pure water, and healthy lands - the foundations of resilient communities, ecosystems and economies in the San Juan Basin.

Environment
5
Rainforest Alliance Inc

RA works at the intersection of business, agriculture & forests to improve lives & protect nature by transforming how land is used, production of goods & consumer choices.

6
Santa Fe Forest Coalition

Educate the public on forest conservation issues in New Mexico

Environment
7
Natural Resources Defense Council Inc

We safeguard the earth: its people, its plants and animals, and (see schedule o) the natural systems on which all life depends. we work to restore the integrity of the elements that sustain life - air, land, and water - to defend…

Environment
8
Nature and Culture International

Nature and culture international conserves biologically diverse landscapes in latin america, in concert with local cultures, for the well-being of the planet.

Environment
9
Rainforest Foundation Inc

The purpose of rainforest foundation us is to support indigenous peoples and forest communities in their efforts to secure their lands, protect their environment, and uphold their rights.

Environment
10
Wild Earth Society Incorporated

Wildlands Network works to reconnect, restore and rewild North America so that life-in all its diversity-can thrive.

Arts & Culture
11
Socially Responsible Agriculture Project Inc

To conduct charitable, scientific and educational activities designed to foster the production of food in a manner that is economically viable and environmentally sound and provides for healthy and humanely raised products.

Food & Nutrition
12
Conservation International Foundation

Ci works to spotlight and secure the critical benefits that nature provides to humanity.

Environment

For reference, the grantee most central to the portfolio’s shape is Santa Fe Watershed Association and the most unlike its peers is Conejos County Clean Water Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.

← shrinkinggrowing →↓ leaning in → pulling backsteadyLand Conservation Organizat…Urban Agriculture & Food Ac…Wildlife Rehabilitation Cen…Homeless Services & ShelterFood Pantries & AssistanceChristian Missionary Organi…Animal Rescue and AdoptionEnvironmental Advocacy Orga…
the sector your giving your giving is ahead of the sector the sector’s ahead of you· dot size = how much the theme matters to each side
Ordered by the change in your giving — leaning in on top, pulling back at the bottom. The bar between the two dots is how out of step you are with the sector. Hover any row for detail.

Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.

Your grantees are a median of 32 years old; the field is 16. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number22%0%<5yr14%5%5–10yr19%26%10–20yr16%26%20–35yr13%36%35–55yr16%7%55yr+
THE FIELDby orgYOUR MONEYby value22%0%<5yr14%2%5–10yr19%14%10–20yr16%31%20–35yr13%44%35–55yr16%9%55yr+

The field is 22% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close 0.0% lost their exemption, against 13% of the field you don’t fund.

orgs you fund
0.0%0/46
the rest of the field
13%
240,396/1,819,519

Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.

04the grantee network

44 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. 44 of the 78 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)
18
Early backer (in before they grew)
42/44
Grantees still filing
32/44
Grew since you first funded

Where your money sits — by cause, then by grantee

THE STUDENT CONSERVATION ASSOCIATION INC — $9,000 · OtherTHE STUDENT CONSERVATION ASSOCIATION INCRocky Mountain Institute — $7,000 · OtherRocky Mountain InstituteWARD 8 WOODS CONSERVATION — $7,000 · OtherWARD 8 WOODS CONSERVATIONFriends of the Rio Grande — $7,000 · OtherFriends of the Rio GrandeHOPEWORKS — $6,000 · OtherRocky Mountain Field Institute Inc — $6,000 · OtherThe Blacksburg Friends Meeting — $5,000 · OtherSTREET HOMELESS ANIMAL PROJECT — $5,000 · OtherESPANOLA VALLEY ANIMAL SHELTER — $5,000 · OtherIndividual grant recipient — $5,000 · OtherHabitat for Humanity - Santa Fe — $5,000 · Other+30 more — $59,000 · Other+30 moreCONEJOS COUNTY CLEAN WATER INC — $9,000 · EnvironmentCONEJOS COUNTY CLEAN WATER IN…SANTA FE WATERSHED ASSOCIATION — $9,000 · EnvironmentSANTA FE WATERSHED ASSOCIATIO…Solar Cookers International — $9,000 · EnvironmentSolar Cookers InternationalOCEAN CONSERVANCY — $9,000 · EnvironmentOCEAN CONSERVANCYEARTH CARE INTERNATIONAL EARTH CARE NEW MEXICO — $7,000 · EnvironmentEARTH CARE INTERNATIONAL EART…AMERICAN RIVERS INC — $6,000 · EnvironmentAMERICAN RIVERS INCTREES FOR THE FUTURE INC — $6,000 · EnvironmentTREES FOR THE FUTURE INCTHE SURFRIDER FOUNDATION — $5,000 · EnvironmentTHE SURFRIDER FOUNDATIONNEW RIVER LAND TRUST — $4,000 · Environment350ORG — $3,000 · Environment+8 more — $9,000 · Environment+8 moreMEDECINS SANS FRONTIERES USA INC — $9,000 · InternationalMEDECINS SANS FR…LOS ALAMOS STUDY GROUP — $9,000 · InternationalLOS ALAMOS STUDY…RURAL ADVANCEMENT FOUNDATION INTERNATION — $9,000 · InternationalRURAL ADVANCEMEN…THE UNION OF CONCERNED SCIENTISTS INC — $9,000 · InternationalTHE UNION OF CON…Sea Turtle Conservancy — $4,000 · InternationalSea Turtle Conse…WORLD CENTRAL KITCHEN INC — $3,000 · InternationalWORLD CENTRAL KI…NEW MEXICO LAND CONSERVANCY — $8,000 · Food & NutritionSTOREHOUSE NEW MEXICO — $5,000 · Food & NutritionROADRUNNER FOOD BANK INC — $2,000 · Food & NutritionRIO GRANDE COMMUNITY FARMS — $1,000 · Food & NutritionURBAN GROWERS COLLECTIVE INC — $1,000 · Food & NutritionTHE HEART AND SOUL ANIMAL SANCTUARY — $9,000 · AnimalsPROJECT STREET VET — $3,000 · AnimalsHOPE FOR PAWS — $2,000 · AnimalsPAW WARRIORS INC — $1,000 · AnimalsLand of Enchantment Wildlife Foundation — $1,000 · AnimalsTHE FOOD DEPOT — $9,000 · Human ServicesTHINK NEW MEXICO — $2,000 · Human ServicesNehemiah Group dba Chicago Eco House — $1,000 · Community Improvement
Other$126,000Environment$76,000International$43,000Food & Nutrition$17,000Animals$16,000Human Services$11,000Community Improvement$1,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetCONEJOS COUNTY CLEAN WATER INC — $9,000 over 9y, 0.6% of budgetTHE HEART AND SOUL ANIMAL SANCTUARY — $9,000 over 9y, 0.3% of budgetTHE FOOD DEPOT — $9,000 over 9y, 0.0% of budgetMEDECINS SANS FRONTIERES USA INC — $9,000 over 9y, 0.0% of budgetSANTA FE WATERSHED ASSOCIATION — $9,000 over 9y, 0.6% of budgetTHE STUDENT CONSERVATION ASSOCIATION INC — $9,000 over 9y, 0.0% of budgetSolar Cookers International — $9,000 over 9y, 0.2% of budgetLOS ALAMOS STUDY GROUP — $9,000 over 9y, 1.3% of budgetRURAL ADVANCEMENT FOUNDATION INTERNATION — $9,000 over 9y, 0.1% of budgetTHE UNION OF CONCERNED SCIENTISTS INC — $9,000 over 9y, 0.0% of budgetOCEAN CONSERVANCY — $9,000 over 9y, 0.0% of budgetNEW MEXICO LAND CONSERVANCY — $8,000 over 8y, 0.1% of budgetEARTH CARE INTERNATIONAL EARTH CARE NEW MEXICO — $7,000 over 7y, 0.9% of budgetRocky Mountain Institute — $7,000 over 7y, 0.0% of budgetAMERICAN RIVERS INC — $6,000 over 6y, 0.0% of budgetHOPEWORKS — $6,000 over 6y, 0.0% of budgetTREES FOR THE FUTURE INC — $6,000 over 6y, 0.0% of budgetRocky Mountain Field Institute Inc — $6,000 over 6y, 0.1% of budgetTHE SURFRIDER FOUNDATION — $5,000 over 5y, 0.0% of budgetSTOREHOUSE NEW MEXICO — $5,000 over 5y, 0.0% of budgetSea Turtle Conservancy — $4,000 over 4y, 0.0% of budgetNEW RIVER LAND TRUST — $4,000 over 4y, 0.2% of budget350ORG — $3,000 over 3y, 0.0% of budgetPROJECT STREET VET — $3,000 over 3y, 0.1% of budgetTHE NATURE CONSERVANCY — $3,000 over 3y, 0.0% of budgetWORLD CENTRAL KITCHEN INC — $3,000 over 3y, 0.0% of budgetEarth Conservation Corps — $2,000 over 2y, 0.2% of budgetTHINK NEW MEXICO — $2,000 over 2y, 0.0% of budgetHOPE FOR PAWS — $2,000 over 2y, 0.0% of budgetROADRUNNER FOOD BANK INC — $2,000 over 2y, 0.0% of budgetPAW WARRIORS INC — $1,000 over 1y, 0.6% of budgetNatural Capitalism Solutions Inc — $1,000 over 1y, 0.0% of budgetKITCHEN ANGELS INC — $1,000 over 1y, 0.1% of budgetNehemiah Group dba Chicago Eco House — $1,000 over 1y, 0.1% 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 CONEJOS COUNTY CLEAN WATER INC
  • Who funds THE HEART AND SOUL ANIMAL SANCTUARY
  • Who funds THE FOOD DEPOT
  • Who funds MEDECINS SANS FRONTIERES USA INC
  • Who funds SANTA FE WATERSHED ASSOCIATION
  • Who funds THE STUDENT CONSERVATION ASSOCIATION INC
  • Who funds Solar Cookers International
  • Who funds LOS ALAMOS STUDY GROUP
  • Who funds RURAL ADVANCEMENT FOUNDATION INTERNATION
  • Who funds THE UNION OF CONCERNED SCIENTISTS INC
  • Who funds OCEAN CONSERVANCY
  • Who funds NEW MEXICO LAND CONSERVANCY
  • Who funds EARTH CARE INTERNATIONAL EARTH CARE NEW MEXICO
  • Who funds Rocky Mountain Institute
  • Who funds AMERICAN RIVERS INC
  • Who funds HOPEWORKS
  • Who funds TREES FOR THE FUTURE INC
  • Who funds Rocky Mountain Field Institute Inc
  • Who funds THE SURFRIDER FOUNDATION
  • Who funds STOREHOUSE NEW MEXICO
  • Who funds Sea Turtle Conservancy
  • Who funds NEW RIVER LAND TRUST
  • Who funds 350ORG
  • Who funds PROJECT STREET VET
  • Who funds THE NATURE CONSERVANCY
  • Who funds WORLD CENTRAL KITCHEN INC

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 tightly interlocked camp — most of these funders back each other's grantees too.

Santa Fe Community FoundationNM25.3× affinity10 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Santa Fe Community Foundation · Albuquerque Community Foundation · Patagoniaorg · Nusenda Foundation · Marshall L and Perrine D McCune Charitable Foundation Inc · Clif Family Foundation · Bolene Charitable Trust · Lannan Foundation · Carl C Anderson Sr and Marie Jo Anderson Charitable Foundation · National Fish and Wildlife Foundation · S B Foundation · The Abeles Foundation

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 Louise Arnold Maddux Environmental Foundation 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.

2024
202122232425
no gov · 40%0%1%3%5%your share of their income ↑0%25%50%75%100%share of the org’s income from governmentmedian 1%
  • Sea Turtle Conservancy1% of income from government
no gov moneyreceives it· size = income
4get no government money at all
12report 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, 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 78 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