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· Private foundation

Myrtle L Atkinson Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$928k
Granted FY2025still arriving
92
Grants FY2025still arriving
15
States reached
$105k
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 2024.

Environment$603kEducation$580kHealth$455kReligion$442kInternational$387kHuman Services$271kYouth Development$127kScience & Tech$94kOther$0
02FY2025 · 92 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k52 grants · $214k
  • $10k–50k36 grants · $409k
  • $50k–250k4 grants · $305k
$5,000
Median grant
15
States reached
$9.4M
Total assets
Largest grants
RecipientAmount
SEMPERVIRENS FUND$105,000
TUNNEL TO TOWERS FOUNDATION$100,000
FIRST PLACE FOR YOUTH$50,000
ONE VOICE$50,000
TUNNEL TO TOWERS FOUNDATION$20,000
CALIFORNIA INSTITUTE OF TECHNOLOGY$20,000
ENCOMPASS NW$20,000
FRED HUTCHINSON CANCER RESEARCH CENTER$20,000
INTERNATIONAL RESCUE COMMITTEE$17,000
INTERNATIONAL RESCUE COMMITTEE$12,000
CALIFORNIA WHITE SHARK PROJECT$10,000
FEEDING WESTCHESTER$10,000
FOUNDATION FOR CLACIER & ENVIRONMENTAL RESEARCH (FGER)$10,000
BEST FRIENDS ANIMAL FOUNDATION$10,000
WILD OYSTER PROJECT CO EARTH ISLAND INSTITUTE$10,000
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 (FY17–25, $401k) land where the poverty rate runs at 10%, against an area that typically sits at 10%. 68% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%PEGASUS PROJECT: $10k → 10%Assistance League of San Mateo: $5k → 7%PEGASUS PROJECT: $10k → 10%ASPIRE AFTERSCHOOL LEARNING: $10k → 7%Assistance League of San Mateo: $5k → 7%PEGASUS PROJECT: $10k → 10%ASPIRE AFTERSCHOOL LEARNING: $10k → 7%Pegasus Project: $10k → 10%Peninsula Family Service: $5k → 7%Pegasus Project: $10k → 10%Pegasus Project: $10k → 10%Assistance League of San Mateo: $5k → 7%Pegasus Project: $10k → 10%Assistance League of San Mateo: $5k → 7%Pegasus Project: $10k → 10%Peninsula Family Service: $5k → 7%Pegasus Project: $10k → 10%Peninsula Family Service: $5k → 7%Pegasus Project: $5k → 10%ASSISTANCE LEAGUE OF SAN MATEO COUNTY: $5k → 7%Assistance League of San Mateo: $5k → 7%FIRST PLACE FOR YOUTH: $50k → 10%First Place for Youth: $4k → 10%EL CENTRO DE LA RAZA: $5k → 9%Peninsula Family Service: $5k → 7%FIRST PLACE FOR YOUTH: $4k → 10%First Place for Youth: $4k → 10%First Place for Youth: $4k → 10%FIRST PLACE FOR YOUTH: $4k → 10%Assistance League of San Mateo: $5k → 7%First Place for Youth: $4k → 10%LARKIN STREET YOUTH SERVICES: $10k → 10%Peninsula Family Service: $5k → 7%First Place for Youth: $4k → 10%Peninsula Family Service: $5k → 7%First Place for Youth: $4k → 10%ONE VOICE: $50k → 14%Peninsula Family Service: $5k → 7%ONE VOICE: $10k → 14%Assistance League of San Mateo: $5k → 7%PENINSULA FAMILY SERVICE: $5k → 7%Larkin Street Youth Services: $3k → 10%LARKIN STREET YOUTH SERVICES: $3k → 10%Larkin Street Youth Services: $3k → 10%LARKIN STREET YOUTH SERVICES: $3k → 10%Larkin Street Youth Services: $3k → 10%PENINSULA VOLUNTEERS: $10k → 7%PENINSULA VOLUNTEERS: $5k → 7%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.

Which US states its grants reach

ME
VT
WA
MN
MI
NY
MA
OR
NV
OH
PA
CA
UT
CO
NE
MO
VA
MD
AR
DC
GA
TX
FL
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.

89%of every dollar goes to organizations it has funded before.
$3.8M · 81 repeat orgs$483k to everyone else

Grantees it renews have grown median revenue +40% since the first grant, against +24% for those funded once.

81 repeat relationships: 33 still active in FY2025, 48 since wound down; 14 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

81
43

Total granted

$3.8M
$272k

Median revenue growth · since first grant

+40%
+24%

Still filing today

69%
47%

New vs renewed · share of each year

In FY2025, 77% of grant dollars renewed an existing relationship; $211k 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
HealthEducationHuman ServicesEnvironmentInternationalArts & CultureOther
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

  • SF
    SEMPERVIRENS FUND
    9× · 2017–2025 · $460k · revenue +180%
  • STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION
    3× · 2023–2025 · $160k · revenue +50%
  • MAP International Inc
    9× · 2017–2025 · $130k · revenue +131%

Funded once

  • TS
    THE SALVATION ARMY
    one grant, 2024 · $20k
  • RM
    Respect Medina
    one grant, 2017 · $20k
  • MM
    Make-A-Wish Michigan
    one grant, 2017 · $20k
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 Union of Concerned Scientists Inc

The union of concerned scientists puts rigorous, independent science into action, developing solutions and advocating for a healthy, safe, and just future.

International
2
Conservation Society of California

Through management of oakland zoo, the conservation society of california deepens connection with animals, saves wildlife, and inspires champions for the natural world.

Animals
3
Turtle Island Restoration Network

To mobilize people in local communities around the world to protect marine wildlife and the oceans and inland watersheds that sustain them.

Environment
4
Friends of the Earth

Friends of the earth strives for a more healthy and just world by defendng the environment and human health while advancing social and economic justice by conducting research and education, transforming the economy so it protects the…

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
Public Advocates Inc

For more than five decades, public advocates has challenged the systemic causes of poverty and racial discrimination by strengthening community voices in public policy and achieving tangible legal victories advancing education, housing,…

—
7
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
8
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
9
San Francisco Bay Bird Observatory

The San Francisco Bay Bird Observatory is dedicated to promote sustainability in the Bay Area and beyond by engaging communities in avian science, habitat restoration, and education.

Environment
10
Public Health Institute

Public health institute generates and promotes research, leadership and partnerships to build capacity for strong public health policy, programs, systems and practices.

Health
11
California Ocean Science Trust

California ocean science trust (ost) is a non-profit organization dedicated to accelerating progress towards a healthy and productive ocean future for california. created by state legislation, ost bridges the gap between cutting-edge…

Environment
12
California Rangeland Trust

To serve the land, people and wildlife by conserving california's working rangelands.

Food & Nutrition
How this is measured
The grantee most central to the portfolio’s shape is Make-a-Wish Foundation of Michigan; the most unlike its peers is Pegasus 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

90 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. 90 of the 139 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)
21
Early backer (in before they grew)
86/90
Grantees still filing
64/90
Grew since first funded

Where the money sits, by cause and then by grantee

Salvation Army - San Francisco: $125,000 · OtherSalvation Army - San FranciscoSalvation Army - Los Angeles: $125,000 · OtherSalvation Army - Los AngelesMID-PENINSULA EDUCATION CENTER INC: $89,000 · OtherFRED HUTCHINSON CANCER RESEARCH CENTER: $86,500 · OtherIndividual grant recipient: $65,000 · OtherJOBTRAIN INC: $100,000 · OtherJOBTRAIN INC+81 more: $1,222,500 · Other+81 moreSTEPHEN SILLER TUNNEL TO TOWERS FOUNDATION: $160,000 · EducationSTEPHEN SILLER TUN…WILLAMETTE UNIVERSITY: $115,000 · EducationWILLAMETTE UNIVERS…CALIFORNIA INSTITUTE OF TECHNOLOGY: $110,000 · EducationCALIFORNIA INSTITU…UNIVERSITY OF NEBRASKA FOUNDATION: $105,000 · EducationUNIVERSITY OF NEBR…Mary Lyon Foundation Inc: $69,000 · EducationMary Lyon Foundati…OCCIDENTAL COLLEGE: $40,000 · EducationOCCIDENTAL COLLEGEPARTNERS IN ROUTT COUNTY: $32,500 · EducationUC LAW SF FOUNDATION: $30,000 · Education+3 more: $23,000 · EducationSEMPERVIRENS FUND: $460,000 · EnvironmentSEMPERVIRENS FUNDWHIDBEY CAMANO LAND TRUST: $55,000 · EnvironmentWHIDBEY CAMANO LA…PENINSULA OPEN SPACE TRUST: $40,000 · EnvironmentPENINSULA OPEN SP…SAVE THE REDWOODS LEAGUE: $30,000 · EnvironmentFRANKLIN LAND TRUST INC: $27,000 · Environment+4 more: $30,000 · EnvironmentPEGASUS PROJECT: $95,000 · Human ServicesPEGASUS PR…FIRST PLACE FOR YOUTH: $82,000 · Human ServicesFIRST PLAC…One Voice: $60,000 · Human ServicesOne VoiceASSISTANCE LEAGUE OF SAN MATEO COUNTY: $40,000 · Human ServicesASSISTANCE…PENINSULA FAMILY SERVICE: $40,000 · Human ServicesPENINSULA …Larkin Street Youth Services: $36,000 · Human ServicesLarkin Str…ASPIRE AFTERSCHOOL LEARNING: $20,000 · Human ServicesPENINSULA VOLUNTEERS INC: $15,000 · Human Services+2 more: $13,000 · Human ServicesMAP International Inc: $130,000 · InternationalInternational Rescue Committee INC: $121,000 · InternationalBEYOND BORDERS INC: $37,000 · InternationalMALI KALANSO: $23,000 · International+2 more: $8,000 · InternationalSUTTER BAY MEDICAL FOUNDATION: $90,000 · HealthSAFESPACE CENTER INC: $60,000 · HealthFRIENDS OF KAREN INC: $55,000 · HealthMAKE-A-WISH FOUNDATION OF MICHIGAN: $40,000 · HealthEPILEPSY FOUNDATION OF AMERICA: $33,000 · Health+7 more: $35,000 · HealthROCKY MOUNTAIN YOUTH CORPS: $81,000 · Youth DevelopmentCamp For All Foundation: $10,000 · Youth DevelopmentTREEHOUSE: $8,000 · Youth Development+1 more: $2,500 · Youth Development
Other$1,813,000Education$684,500Environment$642,000Human Services$401,000International$319,000Health$313,000Youth Development$101,500

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 budgetSEMPERVIRENS FUND: $460,000 over 9y, 0.9% of budgetSTEPHEN SILLER TUNNEL TO TOWERS FOUNDATION: $160,000 over 3y, 0.0% of budgetMAP International Inc: $130,000 over 9y, 0.0% of budgetInternational Rescue Committee INC: $121,000 over 9y, 0.0% of budgetWILLAMETTE UNIVERSITY: $115,000 over 8y, 0.3% of budgetCALIFORNIA INSTITUTE OF TECHNOLOGY: $110,000 over 9y, 0.0% of budgetUNIVERSITY OF NEBRASKA FOUNDATION: $105,000 over 9y, 0.0% of budgetJOBTRAIN INC: $100,000 over 9y, 0.2% of budgetSUTTER BAY MEDICAL FOUNDATION: $90,000 over 7y, 0.0% of budgetMID-PENINSULA EDUCATION CENTER INC: $89,000 over 7y, 0.3% of budgetFRED HUTCHINSON CANCER RESEARCH CENTER: $86,500 over 9y, 0.0% of budgetFIRST PLACE FOR YOUTH: $82,000 over 8y, 0.2% of budgetROCKY MOUNTAIN YOUTH CORPS: $81,000 over 8y, 0.3% of budgetMary Lyon Foundation Inc: $69,000 over 9y, 5.6% of budgetENCOMPASS NORTHWEST: $58,000 over 4y, 0.3% of budgetFRIENDS OF KAREN INC: $55,000 over 9y, 0.3% of budgetWHIDBEY CAMANO LAND TRUST: $55,000 over 7y, 0.3% of budgetLa Casa de las Madres: $50,000 over 9y, 0.3% of budgetOCCIDENTAL COLLEGE: $40,000 over 8y, 0.0% of budgetASSISTANCE LEAGUE OF SAN MATEO COUNTY: $40,000 over 8y, 4.2% of budgetPENINSULA OPEN SPACE TRUST: $40,000 over 7y, 0.0% of budgetPENINSULA FAMILY SERVICE: $40,000 over 8y, 0.0% of budgetECUMENICAL HUNGER PROGRAM: $40,000 over 8y, 0.1% of budgetMAKE-A-WISH FOUNDATION OF MICHIGAN: $40,000 over 2y, 0.2% of budgetTHE LITERACY PROJECT: $37,000 over 7y, 0.7% of budgetBEYOND BORDERS INC: $37,000 over 9y, 0.5% of budgetLarkin Street Youth Services: $36,000 over 9y, 0.0% of budgetEPILEPSY FOUNDATION OF AMERICA: $33,000 over 3y, 0.1% of budgetPARTNERS IN ROUTT COUNTY: $32,500 over 3y, 1.3% of budgetSAVE THE REDWOODS LEAGUE: $30,000 over 6y, 0.0% of budgetUC LAW SF FOUNDATION: $30,000 over 6y, 0.1% of budgetFRANKLIN LAND TRUST INC: $27,000 over 9y, 0.4% of budgetCALIFORNIA WHITE SHARK PROJECT: $25,000 over 3y, 4.9% of budgetMALI KALANSO: $23,000 over 7y, 9.8% of budgetFEEDING WESTCHESTER INC: $22,000 over 2y, 0.1% of budgetWildlife Conservation Society: $20,000 over 1y, 0.0% of budgetASPIRE AFTERSCHOOL LEARNING: $20,000 over 1y, 1.1% of budgetTHE ART GARDEN INC: $17,000 over 3y, 4.6% of budgetAPI CHAYA: $17,000 over 5y, 0.1% of budgetJACKSON STREET YOUTH SHELTER INC: $16,500 over 3y, 0.8% of budgetThe Peninsula College Fund: $15,000 over 3y, 0.5% of budgetFORTERRA NW: $15,000 over 3y, 0.1% of budgetADVENTURES IN CARING FOUNDATION: $15,000 over 2y, 13% of budgetLavender Rights Project: $15,000 over 5y, 0.1% of budgetPENINSULA VOLUNTEERS INC: $15,000 over 1y, 0.2% of budgetCOMMUNITY INVOLVED IN SUSTAINING AGRICULTURE INC: $13,000 over 2y, 0.2% of budgetTHIRD SECTOR NEW ENGLAND INC: $13,000 over 3y, 0.0% of budgetTHE JUST ONE PROJECT: $12,000 over 2y, 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 SEMPERVIRENS FUND ↗
  • Who funds STEPHEN SILLER TUNNEL TO TOWERS FOUNDATION ↗
  • Who funds MAP International Inc ↗
  • Who funds International Rescue Committee INC ↗
  • Who funds WILLAMETTE UNIVERSITY ↗
  • Who funds CALIFORNIA INSTITUTE OF TECHNOLOGY ↗
  • Who funds UNIVERSITY OF NEBRASKA FOUNDATION ↗
  • Who funds JOBTRAIN INC ↗
  • Who funds PEGASUS PROJECT ↗
  • Who funds SUTTER BAY MEDICAL FOUNDATION ↗
  • Who funds MID-PENINSULA EDUCATION CENTER INC ↗
  • Who funds FRED HUTCHINSON CANCER RESEARCH CENTER ↗
  • Who funds FIRST PLACE FOR YOUTH ↗
  • Who funds ROCKY MOUNTAIN YOUTH CORPS ↗
  • Who funds Mary Lyon Foundation Inc ↗
  • Who funds SAFESPACE CENTER INC ↗
  • Who funds One Voice ↗
  • Who funds ENCOMPASS NORTHWEST ↗
  • Who funds FRIENDS OF KAREN INC ↗
  • Who funds WHIDBEY CAMANO LAND TRUST ↗
  • Who funds La Casa de las Madres ↗
  • Who funds OCCIDENTAL COLLEGE ↗
  • Who funds ASSISTANCE LEAGUE OF SAN MATEO COUNTY ↗
  • Who funds PENINSULA OPEN SPACE TRUST ↗
  • Who funds PENINSULA FAMILY SERVICE ↗
  • Who funds ECUMENICAL HUNGER PROGRAM ↗
  • Who funds MAKE-A-WISH FOUNDATION OF MICHIGAN ↗
  • Who funds THE LITERACY PROJECT ↗
  • Who funds BEYOND BORDERS INC ↗
  • Who funds Larkin Street Youth Services ↗

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.

Seattle FoundationWA22.4× affinity12 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Seattle Foundation · The San Francisco Foundation · Community Foundation of Western Massachusetts · Jewish Community Federation of San Francisco the Peninsula Marin & Sonoma · The Norcliffe Foundation · Atkinson Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · United Way of King County · Silicon Valley Community Foundation · Gordon E and Betty I Moore Foundation · Marin Community Foundation · The Palo Alto Community Fund

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 Myrtle L Atkinson Foundation funds: left to right is the share of its income from government, bottom to top the share from Myrtle L Atkinson Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%6%25%56%100%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 18%
  • Jackson Street Youth Shelter Inc: 59% of income from government
  • Friends of Children Inc: 54% of income from government
  • Community Involved in Sustaining Agriculture Inc: 35% of income from government
  • Epilepsy Foundation of America: 22% of income from government
  • The Art Garden Inc: 18% of income from government
  • Franklin Land Trust Inc: 7% of income from government
  • Third Sector New England Inc: 3% of income from government
  • Mary Lyon Foundation Inc: 2% of income from government
  • Willamette University: 1% of income from government
  • Milton Academy: 0% of income from government
no gov moneyreceives it· size = income
1get no government money at all
18report government grants on their 990 we could not trace to a source (not plotted)
2rely 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 Myrtle L Atkinson Foundation?

Find your warmest path to Myrtle L Atkinson 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 139 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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