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· Private foundation

The Donald and Maureen Green Foundation

Its FY2024 filing reports that it accepted unsolicited grant applications.

$427k
Granted FY2024still arriving
16
Grants FY2024still arriving
4
States reached
$135k
Largest
01What you fundRead
02The needRead
03Your edgeRead
04Your fieldRead
05Through PlinthRead
01What you fund
0198% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2024.

Arts & Culture$380kAnimals$332kEducation$267kFood & Nutrition$133kEnvironment$120kHealth$60kHuman Services$45kHousing & Shelter$35kOther$0
02FY2024 · 16 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2024

  • Under $10k2 grants · $9k
  • $10k–50k13 grants · $283k
  • $50k–250k1 grant · $135k
$25,000
Median grant
4
States reached
$11M
Total assets
Largest grants
RecipientAmount
WILDLIFE CONSERVATION NETWORK$135,330
SONOMA STATE UNIVERSITY$32,036
LEWA WILDLIFE CONSERVANCY USA$25,000
REDWOOD EMPIRE FOOD BANK$25,000
SANTA ROSA MEMORIAL HOSPICE$25,000
OCEAN CONSERVANCY$25,000
PEPPERWOOD FOUNDATION$25,000
SONOMA BACH$25,000
THE BIRD RESCUE CENTER$20,766
NATIONAL PHILANTHROPIC TRUST$20,000
CERES COMMUNITY PROJECT$20,000
ARTISAN CHEESE FESTIVAL$15,000
HUMANE SOCIETY OF SONOMA COUNTY$15,000
KING RIDGE FOUNDATION$10,000
GREENBELT ALLIANCE$5,000
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 (FY17–24) land where the poverty rate runs at 10%, against an area that typically sits at 9%. 97% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 9%NATIONAL PHILANTHROPIC TRUST: $20k → 7%COMMITTEE ON THE SHELTERLESS: $10k → 8%RIPPLE EFFECT ANIMAL PROJECT: $25k → 9%SANTA ROSA MEMORIAL HOSPICE: $25k → 9%GREENBELT ALLIANCE: $5k → 10%SAVE THE RHINO INTERNATIONAL INC: $25k → 17%OCEAN CONSERVANCY: $25k → 14%SONOMA COUNTY BACH SOCIETY: $10k → 9%GREENBELT ALLIANCE: $5k → 10%OCEAN CONSERVANCY: $25k → 14%CHURCH OF INCARNATION: $10k → 9%WILDLIFE CONSERVATION NETWORK: $135k → 10%SONOMA COUNTY BACH SOCIETY: $10k → 9%WILDLIFE CONSERVATION NETWORK: $40k → 10%SANTA ROSA MEMORIAL HOSPICE: $10k → 9%WILDLIFE CONSERVATION NETWORK: $15k → 10%SONOMA COUNTY BACH SOCIETY: $10k → 9%WILDLIFE CONSERVATION NETWORK: $10k → 10%SONOMA COUNTY BACH SOCIETY: $10k → 9%COMMUNITY FOUNDATION SONOMA: $5k → 9%GREEN MUSIC CENTER: $203k → 9%SONOMA STATE UNIVERSITY ACADEMIC FOUNDATION: $63k → 9%SONOMA STATE UNIVERSITY: $52k → 9%SONOMA STATE UNIVERSITY: $32k → 9%SONOMA STATE UNIVERSITY: $30k → 9%SONOMA STATE UNIVERSITY: $10k → 9%GREEN MUSIC CENTER: $8k → 9%SANTA ROSA SYMPHONY: $69k → 9%SONOMA ACADEMY: $30k → 9%PEPPERWOOD FOUNDATION: $25k → 9%PEPPERWOOD: $25k → 9%PEPPERWOOD FOUNDATION: $25k → 9%SONOMA ACADEMY: $17k → 9%ARTISAN CHEESE FESTIVAL: $10k → 9%CENTER FOR CLIMATE PROTECTION: $10k → 9%SANTA ROSA SYMPHONY: $10k → 9%SONOMA ACADEMY: $9k → 9%SONOMA ACADEMY: $7k → 9%SONOMA ACADEMY: $5k → 9%SONOMA ACADEMY: $5k → 9%SONOMA ACADEMY: $4k → 9%SONOMA ACADEMY: $4k → 9%SONOMA VALLEY VINTNERS FOUNDATION: $5k → 9%HUMANE SOCIETY OF SONOMA COUNTY: $15k → 9%HUMANE SOCIETY OF SONOMA COUNTY: $15k → 9%REDWOOD EMPIRE FOOD BANK: $25k → 9%REDWOOD EMPIRE FOOD BANK: $20k → 9%ALZHEIMER'S ASSOCIATION: $25k → 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.

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.

83%of every dollar goes to organizations you’ve funded before.
$1.2M · 16 repeat orgs$238k to everyone else

16 repeat relationships — 13 still active in FY2024, 3 since wound down; 2 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

16
11

Total granted

$1.2M
$208k

Median revenue growth · since first grant

+26%
+158%

Still filing today

75%
36%

New vs renewed · share of each year

In FY2024, 92% of grant dollars renewed an existing relationship; $31k went to new ones.

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

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

’17’18’19’20’21’22’23’24
AnimalsEnvironmentFood & NutritionEducationArts & CultureHuman ServicesOther

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

  • WC
    WILDLIFE CONSERVATION NETWORK INC
    4× · 2017–2024 · $200k · revenue +302%
  • AC
    ARTISAN CHEESE FESTIVAL
    7× · 2017–2024 · $88k · revenue +10%
  • SA
    SONOMA ACADEMY
    8× · 2017–2024 · $80k · revenue +23%

Funded once

  • SS
    SONOMA STATE UNIVERSITY ACADEMIC FOUNDATION
    one grant, 2017 · $63k
  • RE
    RIPPLE EFFECT ANIMAL PROJECTgraduated
    one grant, 2023 · $25k · revenue +51% · 26% of their budget
  • ST
    SAVE THE RHINO INTERNATIONAL INC
    one grant, 2023 · $25k · revenue -75%

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
Sonoma Botanical Garden
—
2
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
3
Sonoma Mountain Institute
Environment
4
Sonoma Ecology Center

The Mission of Sonoma Ecology Center is to work with our community to enhance and sustain ecological health in the Sonoma valley.

Environment
5
Rainforest Trust

Rainforest trust saves endangered wildlife and protects our planet by creating rainforest reserves through partnerships, community engagement, and donor support.

International
6
Chile-California Council

The Chile-California Council is a San Francisco-based nonprofit dedicated to developing and promoting joint endeavors and cooperative relations between Chile and California, as well as individuals, legal entities and other institutions in…

International
7
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
8
Greater Farallones Association

Gfa works in partnership with and on behalf of the greater farallones and cordell bank national marine sanctuaries to preserve, monitor, research, educate about and enhance these invaluable marine resources.

Animals
9
California Institute of Environmental Studies

The institute is dedicated to scientific research, the results of which are used to promote public awareness and education in the areas of conservation biology and ecology,including the wise use of natural resources.

Animals
10
Rainforest Rising

Large scale restoration of priority ecosystems and habitats.

Human Services
11
Society for the Prevention of Cruelty to Animals for Monterey County

The SPCA Monterey County's Mission is assuring compassionate treatment of all animals through rescue, rehabilitation, protection and education. The SPCA shelters homeless, neglected, and abused pets, including dogs, cats, horses, exotic…

Animals
12
Monterey Bay Aquarium Research Institute
—

For reference, the grantee most central to the portfolio’s shape is Pepperwood Foundation and the most unlike its peers is Ripple Effect Animal Project. 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

19 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 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 19 of the 30 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.

1
Load-bearing (≥25% of a budget)
4
Early backer (in before they grew)
19/19
Grantees still filing
15/19
Grew since you first funded

Where your money sits — by cause, then by grantee

GREEN MUSIC CENTER — $211,051 · OtherGREEN MUSIC CENTERSONOMA STATE UNIVERSITY — $123,946 · OtherSONOMA STATE UNIVERSITYSONOMA STATE UNIVERSITY ACADEMIC FOUNDATION — $63,000 · OtherSONOMA STATE UNIVERSITY ACADEMIC FOUNDATIONSONOMA COUNTY BACH SOCIETY — $40,000 · OtherSONOMA COUNTY BACH SOCIETYSANTA ROSA MEMORIAL HOSPICE — $35,000 · OtherSANTA ROSA MEMORIAL HOSPICEALZHEIMER'S ASSOCIATION — $25,000 · OtherPEPPERWOOD — $25,000 · Other+5 more — $34,500 · Other+5 moreWILDLIFE CONSERVATION NETWORK INC — $200,080 · AnimalsWILDLIFE CONSERVATION NETW…Lewa Wildlife Conservancy USA — $31,000 · AnimalsLewa Wildlife Conservancy …HUMANE SOCIETY OF SONOMA COUNTY — $30,000 · AnimalsHUMANE SOCIETY OF SONOMA C…RIPPLE EFFECT ANIMAL PROJECT — $25,000 · AnimalsRIPPLE EFFECT ANIMAL PROJE…SAVE THE RHINO INTERNATIONAL INC — $25,000 · AnimalsSAVE THE RHINO INTERNATION…THE BIRD RESCUE CENTER — $20,766 · AnimalsTHE BIRD RESCUE CENTERARTISAN CHEESE FESTIVAL — $88,000 · Food & NutritionARTISAN CH…REDWOOD EMPIRE FOOD BANK — $45,000 · Food & NutritionREDWOOD EM…SANTA ROSA SYMPHONY ASSOCIATION — $78,850 · Arts & CultureSANTA ROSA…SONOMA BACH — $50,000 · Arts & CultureSONOMA BAC…PEPPERWOOD FOUNDATION — $50,000 · EnvironmentOCEAN CONSERVANCY — $50,000 · EnvironmentGREENBELT ALLIANCEPEOPLE FOR OPEN SPACE — $10,000 · EnvironmentSONOMA ACADEMY — $80,000 · EducationThe Climate Center — $10,000 · EducationTHE CERES COMMUNITY PROJECT — $45,000 · Human ServicesNATIONAL PHILANTHROPIC TRUST — $20,000 · PhilanthropyKING RIDGE FOUNDATION — $10,000 · Philanthropy
Other$557,497Animals$331,846Food & Nutrition$133,000Arts & Culture$128,850Environment$110,000Education$90,000Human Services$45,000Philanthropy$30,000

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 budgetWILDLIFE CONSERVATION NETWORK INC — $200,080 over 4y, 0.2% of budgetARTISAN CHEESE FESTIVAL — $88,000 over 7y, 11% of budgetSONOMA ACADEMY — $80,000 over 8y, 0.1% of budgetSANTA ROSA SYMPHONY ASSOCIATION — $78,850 over 2y, 1.7% of budgetPEPPERWOOD FOUNDATION — $50,000 over 2y, 0.9% of budgetOCEAN CONSERVANCY — $50,000 over 2y, 0.1% of budgetSONOMA BACH — $50,000 over 2y, 17% of budgetREDWOOD EMPIRE FOOD BANK — $45,000 over 2y, 0.0% of budgetTHE CERES COMMUNITY PROJECT — $45,000 over 2y, 0.3% of budgetLewa Wildlife Conservancy USA — $31,000 over 2y, 0.7% of budgetHUMANE SOCIETY OF SONOMA COUNTY — $30,000 over 2y, 0.3% of budgetRIPPLE EFFECT ANIMAL PROJECT — $25,000 over 1y, 26% of budgetSAVE THE RHINO INTERNATIONAL INC — $25,000 over 1y, 0.8% of budgetTHE BIRD RESCUE CENTER — $20,766 over 1y, 1.0% of budgetNATIONAL PHILANTHROPIC TRUST — $20,000 over 1y, 0.0% of budgetKING RIDGE FOUNDATION — $10,000 over 1y, 8.9% of budgetGREENBELT ALLIANCEPEOPLE FOR OPEN SPACE — $10,000 over 2y, 0.2% of budgetCOMMITTEE ON THE SHELTERLESS — $10,000 over 1y, 0.2% of budgetThe Climate Center — $10,000 over 1y, 0.8% 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.

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.

Sonoma County Communi…Marin Community Found…The San Francisco Fou…McNabb FoundationThe Heck FoundationThornton S Jr and Kat…Silicon Valley Commun…American Endowment Fo…Vanguard Charitable E…Morgan Stanley Global…National Philanthropi…Donor Advised Charita…
Sonoma County Community FoundationCA21.8× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Sonoma County Community Foundation · Marin Community Foundation · The San Francisco Foundation · McNabb Foundation · The Heck Foundation · Thornton S Jr and Katrina D Glide Foundation · Silicon Valley Community Foundation · American Endowment Foundation · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · Donor Advised Charitable Giving Inc

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 The Donald and Maureen Green 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
’20’21’22’23’24’25
no gov · 00%2%8%17%30%your 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
    4report 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

    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.

    05Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to The Donald and Maureen Green Foundation?

    Find your warmest path to The Donald and Maureen Green 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 directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 30 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 2024, released 2024. Filings run roughly 12–24 months behind; figures are dated accordingly.

    Source object · view filing

    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 camps
    funders cluster by geography, not ideology
    By state
    where grant money is based, and what stays home
    State money flows
    the interactive map of money crossing state lines