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· Private foundation

Peierls 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.

$5.9M
Granted FY2025still arriving
42
Grants FY2025still arriving
14
States reached
$750k
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.

International$9.8MHealth$7.1MEducation$5.1MEnvironment$4.2MPublic Safety & Disaster$3.7MYouth Development$3.5MHuman Services$3.1MCivil Rights$1.5MOther$0
02FY2025 · 42 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • $10k–50k14 grants · $479k
  • $50k–250k22 grants · $1.9M
  • $250k+6 grants · $3.5M
$68,000
Median grant
14
States reached
$111M
Total assets
Largest grants
RecipientAmount
DOCTORS WITHOUT BORDERS USA$750,000
AMERICAN RED CROSS$750,000
INTERNATIONAL RESCUE COMMITTEE$700,000
CARE INC$500,000
THE NATURE CONSERVANCY$500,000
PLANNED PARENTHOOD FEDERATION OF AMERICA$300,000
RAISING AUSTIN (TOGETHER4CHILDREN)$150,200
AMERICAN INDIAN COLLEGE FUND$120,000
PLANNED PARENTHOOD OF METROPOLITAN NEW JERSEY$117,500
PLANNED PARENTHOOD OF THE GREAT NORTHWEST$117,500
THE UNIVERSITY OF TEXAS FOUNDATION$110,000
COLORADO UPLIFT$105,000
ALL MAY SEE FOUNDATION$100,000
UNITARIAN-UNIVERSALIST SERVICE COMMITTEE$85,000
VIRGINIA GARCIA MEMORIAL HEALTH CENTER$85,000
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, $960k) land where the poverty rate runs at 11%, against an area that typically sits at 10%. 73% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%DZI FOUNDATION: $40k → 7%AMERICAN FOUNDATION FOR THE BLIND: $25k → 19%LEARNING ALLY: $50k → 11%AMERICAN FOUNDATION FOR THE BLIND: $23k → 7%DZI FOUNDATION: $38k → 7%AMERICAN FOUNDATION FOR THE BLIND: $20k → 19%LEARNING ALLY: $41k → 11%AMERICAN FOUNDATION FOR THE BLIND: $23k → 7%DZI FOUNDATION: $38k → 7%AMERICAN FOUNDATION FOR THE BLIND: $20k → 19%LEARNING ALLY: $39k → 11%AMERICAN FOUNDATION FOR THE BLIND: $22k → 7%DZI FOUNDATION: $38k → 7%LEARNING ALLY: $34k → 11%DZI FOUNDATION: $36k → 7%LEARNING ALLY: $33k → 11%LEARNING ALLY: $32k → 11%LEARNING ALLY: $32k → 11%HOPE CENTER: $76k → 12%HOPE CENTER: $70k → 12%HOPE CENTER: $65k → 12%HOPE CENTER: $58k → 12%HOPE CENTER: $57k → 12%HOPE CENTER: $49k → 12%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

WA
NY
MA
OR
IA
PA
NJ
CT
CA
CO
WV
VA
MD
TN
DC
LA
GA
TX
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.

99%of every dollar goes to organizations it has funded before.
$40M · 54 repeat orgs$326k to everyone else

54 repeat relationships: 38 still active in FY2025, 16 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

54
6

Total granted

$40M
$271k

Median revenue growth · since first grant

+64%
+136%

Still filing today

76%
33%

New vs renewed · share of each year

In FY2025, 99% of grant dollars renewed an existing relationship; $55k went to new ones.

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

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

’17’20’21’22’23’24’25
HealthEducationYouth DevelopmentHuman ServicesInternationalEnvironmentOther
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

  • MEDECINS SANS FRONTIERES USA INC
    7× · 2017–2025 · $5.6M · revenue +98%
  • IR
    International Rescue Committee INC
    7× · 2017–2025 · $4.7M · revenue +81%
  • AN
    American National Red Cross & Its Constituent Chapters and Branches
    3× · 2023–2025 · $1.9M · revenue +22%

Funded once

  • MH
    MILE HIGH UNITED WAY (READING CORP)
    one grant, 2017 · $90k
  • TM
    TSNE MISSIONWORLS (FOR TOOLS OF THE MIND)
    one grant, 2017 · $70k
  • PL
    Pacific Legal Foundationgraduated
    one grant, 2017 · $41k · revenue +136%
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
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
2
The Population Council Inc

We generate ideas, produce evidence, and design solutions to improve the lives of underserved populations around the world. we take a multidisciplinary, intergenerational, life-cycle approach that contributes to (see schedule o)four global…

International
3
Education Commission of the States

The mission of education commission of the states is to advocate for attaining educational excellence for all and to help state leaders identify, develop and implement public policy for education that addresses current and future needs of…

Education
4
Albright College

As a diverse community of learners, we cultivate integrity, curiosity, connection and resilience.

Education
5
Banner -University Medical Group

Assist banner health complete its mission to make health care easier so life can be better by providing integrated & coordinated care & population health management.

Health
6
Augustana College

Rooted in the liberal arts & sciences & lutheran expression of the christian faith, & is committed to offering a challenging education that develops qualities of mind, spirit, & body necessary for a rewarding life of leadership & service…

Education
7
Third Way

To research and develop centrist policy ideas.

Civil Rights
8
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
9
Washington Monthly Institute

Dedicated to increasing public knowledge through washington monthly magazine and website www.washingtonmonthly.com published since 1969, the print magazine is the country's most important watchdog of american government, focusing on what's…

Social Science
10
Institute for State Effectiveness

The institute for state effectiveness seeks to close the governance gap and advance inclusive growth so that states and markets deliver to citizens. ise advances practical approaches to strengthen capacity for transformation, through…

International
11
The Rand Corporation

Help improve policy and decision making through research and analysis.

Public Benefit
12
Guttmacher Institute Inc

The institute is a leading research and policy organization committed to advancing sexual and reproductive health and rights worldwide.

—
How this is measured
The grantee most central to the portfolio’s shape is Reach Out and Read Colorado; the most unlike its peers is Pacific Legal Foundation. 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

46 grantees tracked through their own filings, 2017–2026.

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 2026, not grant rows in a single year, so this will not match the grant count on the cover. 46 of the 64 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)
9
Early backer (in before they grew)
46/46
Grantees still filing
41/46
Grew since first funded

Where the money sits, by cause and then by grantee

THE NATURE CONSERVANCY: $4,097,100 · OtherTHE NATURE CONSERVANCYAMERICAN RED CROSS: $2,579,200 · OtherAMERICAN RED CROSSCARE INC: $1,808,200 · OtherCARE INCRAISING AUSTIN (TOGETHER4CHILDREN): $962,400 · OtherRAISING AUSTIN (TOGETHER4CHILDREN)THE UNIVERSITY OF TEXAS FOUNDATION INC: $647,300 · OtherBIG BROTHERS BIG SISTERS OF AUSTIN TEXAS: $549,000 · OtherLAKE WASHINGTON INSTITUTE OF TECH FNDN: $524,600 · Other+23 more: $4,271,570 · Other+23 moreMEDECINS SANS FRONTIERES USA INC: $5,591,800 · InternationalMEDECINS SANS FRONTIERES USA I…International Rescue Committee INC: $4,655,600 · InternationalInternational Rescue Committee…COOPERATIVE FOR ASSISTANCE AND RELIEF EVERYWHERE INC: $1,460,000 · InternationalCOOPERATIVE FOR ASSISTANCE AND…Unitarian Universalist Service Committee Inc: $536,200 · InternationalPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $1,881,250 · HealthPLANNED PARENTHOO…PLANNED PARENTHOOD GREAT NORTHWEST HAWAII ALASKA INDIANA AND KENTUCKY: $769,500 · HealthPLANNED PARENTHOO…PLANNED PARENTHOOD OF METROPOLITAN NEW JERSEY: $767,700 · HealthPLANNED PARENTHOO…That Man May See Inc DBA All May See Foundation: $750,800 · HealthThat Man May See …PLANNED PARENTHOOD OF GREATER TEXAS INC: $650,200 · HealthPLANNED PARENTHOO…ACCESS ESPERANZA CLINICS INC: $640,500 · HealthACCESS ESPERANZA …VIRGINIA GARCIA MEMORIAL HEALTH CENTER: $591,600 · HealthVIRGINIA GARCIA M…ROCKY MOUNTAIN PLANNED PARENTHOOD INC: $591,350 · HealthROCKY MOUNTAIN PL…HEARING HEALTH FOUNDATION: $264,900 · Health+1 more: $59,500 · HealthCOLORADO UPLIFT INC: $940,700 · EducationCOLORADO UPL…AMERICAN INDIAN COLLEGE FUND: $869,200 · EducationAMERICAN IND…METROPOLITAN STATE UNIVERSITY OF DENVER FOUNDATION INC: $586,400 · EducationMETROPOLITAN…READING PARTNERS: $580,300 · EducationREADING PART…WESTMINSTER PUBLIC SCHOOLS FOUNDATION: $502,200 · EducationWESTMINSTER …MEHARRY MEDICAL COLLEGE: $448,900 · EducationMEHARRY MEDI…DENVER SCHOLARSHIP FOUNDATION: $369,100 · EducationDENVER SCHOL…Yale University: $335,400 · EducationYale Univers…Austin Community College Foundation: $322,400 · EducationAustin Commu…American National Red Cross & Its Constituent Chapters and Branches: $1,887,250 · Human ServicesHope Center Inc: $374,950 · Human ServicesLearning Ally Inc: $261,400 · Human ServicesDZI FOUNDATION: $190,000 · Human ServicesAMERICAN FOUNDATION FOR THE BLIND INC: $155,100 · Human ServicesCOLORADO YOUTH FOR A CHANGE: $647,900 · Youth DevelopmentBIG BROTHERS BIG SISTERS OF COLORADO INC: $493,300 · Youth DevelopmentREACH OUT AND READ COLORADO: $476,500 · Youth DevelopmentGREATER COLORADO COUNCIL BOY SCOUTS OF AMERICA: $197,450 · Youth DevelopmentGIRLS INCORPORATED OF METRO DENVER: $183,700 · Youth DevelopmentNATURAL RESOURCES DEFENSE COUNCIL INC: $430,100 · Environment
Other$15,439,370International$12,243,600Health$6,967,300Education$4,954,600Human Services$2,868,700Youth Development$1,998,850Environment$430,100

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 budgetMEDECINS SANS FRONTIERES USA INC: $5,591,800 over 7y, 0.2% of budgetInternational Rescue Committee INC: $4,655,600 over 7y, 0.1% of budgetTHE NATURE CONSERVANCY: $4,097,100 over 7y, 0.1% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $1,887,250 over 3y, 0.0% of budgetPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $1,881,250 over 7y, 0.1% of budgetCOOPERATIVE FOR ASSISTANCE AND RELIEF EVERYWHERE INC: $1,460,000 over 3y, 0.1% of budgetCOLORADO UPLIFT INC: $940,700 over 7y, 3.5% of budgetAMERICAN INDIAN COLLEGE FUND: $869,200 over 7y, 0.6% of budgetPLANNED PARENTHOOD GREAT NORTHWEST HAWAII ALASKA INDIANA AND KENTUCKY: $769,500 over 7y, 0.2% of budgetPLANNED PARENTHOOD OF METROPOLITAN NEW JERSEY: $767,700 over 7y, 1.1% of budgetThat Man May See Inc DBA All May See Foundation: $750,800 over 7y, 3.1% of budgetPLANNED PARENTHOOD OF GREATER TEXAS INC: $650,200 over 6y, 0.3% of budgetCOLORADO YOUTH FOR A CHANGE: $647,900 over 6y, 2.9% of budgetTHE UNIVERSITY OF TEXAS FOUNDATION INC: $647,300 over 6y, 0.3% of budgetACCESS ESPERANZA CLINICS INC: $640,500 over 6y, 1.5% of budgetVIRGINIA GARCIA MEMORIAL HEALTH CENTER: $591,600 over 7y, 0.1% of budgetROCKY MOUNTAIN PLANNED PARENTHOOD INC: $591,350 over 7y, 0.2% of budgetMETROPOLITAN STATE UNIVERSITY OF DENVER FOUNDATION INC: $586,400 over 7y, 1.3% of budgetREADING PARTNERS: $580,300 over 6y, 0.5% of budgetUnitarian Universalist Service Committee Inc: $536,200 over 7y, 0.9% of budgetWESTMINSTER PUBLIC SCHOOLS FOUNDATION: $502,200 over 7y, 19% of budgetBIG BROTHERS BIG SISTERS OF COLORADO INC: $493,300 over 7y, 2.6% of budgetREACH OUT AND READ COLORADO: $476,500 over 5y, 9.0% of budgetMEHARRY MEDICAL COLLEGE: $448,900 over 7y, 0.1% of budgetNATURAL RESOURCES DEFENSE COUNCIL INC: $430,100 over 7y, 0.0% of budgetTHE INTERFAITH ALLIANCE FOUNDATION INC: $414,500 over 7y, 7.2% of budgetREPRODUCTIVE FREEDOM FOR ALL FOUNDATION: $396,400 over 7y, 0.8% of budgetHope Center Inc: $374,950 over 6y, 3.5% of budgetAMERICANS UNITED FOR SEPARATION OF CHURCH AND STATE: $374,200 over 6y, 0.9% of budgetDENVER SCHOLARSHIP FOUNDATION: $369,100 over 7y, 0.5% of budgetCAMP FIRE COLUMBIA: $361,300 over 5y, 2.6% of budgetYale University: $335,400 over 7y, 0.0% of budgetCOLORADO DREAM FOUNDATION: $334,700 over 3y, 8.4% of budgetAustin Community College Foundation: $322,400 over 7y, 3.2% of budgetHEARING HEALTH FOUNDATION: $264,900 over 7y, 1.3% of budgetLearning Ally Inc: $261,400 over 7y, 0.2% of budgetENERGY OUTREACH COLORADO: $248,250 over 7y, 0.1% of budgetGREATER COLORADO COUNCIL BOY SCOUTS OF AMERICA: $197,450 over 7y, 0.5% of budgetDZI FOUNDATION: $190,000 over 5y, 3.1% of budgetGIRLS INCORPORATED OF METRO DENVER: $183,700 over 4y, 2.9% of budgetAMERICAN FOUNDATION FOR THE BLIND INC: $155,100 over 7y, 0.3% of budgetWESTERN ENVIRONMENTAL LAW CENTER: $150,000 over 3y, 1.3% of budgetARTHRITIS FOUNDATION INC: $59,500 over 2y, 0.1% of budgetPacific Legal Foundation: $41,300 over 1y, 0.3% of budgetFOOD BANK OF THE ROCKIES: $30,000 over 1y, 0.0% of budgetSOUTHERN INSTITUTE FOR EDUCATION & RESEARCH INC: $17,600 over 1y, 15% 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 MEDECINS SANS FRONTIERES USA INC ↗
  • Who funds International Rescue Committee INC ↗
  • Who funds THE NATURE CONSERVANCY ↗
  • Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
  • Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
  • Who funds COOPERATIVE FOR ASSISTANCE AND RELIEF EVERYWHERE INC ↗
  • Who funds COLORADO UPLIFT INC ↗
  • Who funds AMERICAN INDIAN COLLEGE FUND ↗
  • Who funds PLANNED PARENTHOOD GREAT NORTHWEST HAWAII ALASKA INDIANA AND KENTUCKY ↗
  • Who funds PLANNED PARENTHOOD OF METROPOLITAN NEW JERSEY ↗
  • Who funds That Man May See Inc DBA All May See Foundation ↗
  • Who funds PLANNED PARENTHOOD OF GREATER TEXAS INC ↗
  • Who funds COLORADO YOUTH FOR A CHANGE ↗
  • Who funds THE UNIVERSITY OF TEXAS FOUNDATION INC ↗
  • Who funds ACCESS ESPERANZA CLINICS INC ↗
  • Who funds VIRGINIA GARCIA MEMORIAL HEALTH CENTER ↗
  • Who funds ROCKY MOUNTAIN PLANNED PARENTHOOD INC ↗
  • Who funds METROPOLITAN STATE UNIVERSITY OF DENVER FOUNDATION INC ↗
  • Who funds READING PARTNERS ↗
  • Who funds Unitarian Universalist Service Committee Inc ↗
  • Who funds WESTMINSTER PUBLIC SCHOOLS FOUNDATION ↗
  • Who funds BIG BROTHERS BIG SISTERS OF COLORADO INC ↗
  • Who funds REACH OUT AND READ COLORADO ↗
  • Who funds MEHARRY MEDICAL COLLEGE ↗
  • Who funds NATURAL RESOURCES DEFENSE COUNCIL INC ↗
  • Who funds THE INTERFAITH ALLIANCE FOUNDATION INC ↗
  • Who funds REPRODUCTIVE FREEDOM FOR ALL FOUNDATION ↗
  • Who funds Hope Center Inc ↗
  • Who funds AMERICANS UNITED FOR SEPARATION OF CHURCH AND STATE ↗
  • Who funds DENVER SCHOLARSHIP FOUNDATION ↗
  • Who funds CAMP FIRE COLUMBIA ↗
  • Who funds Yale University ↗
  • Who funds COLORADO DREAM FOUNDATION ↗
  • Who funds Austin Community College Foundation ↗

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.

Colorado Gives FoundationCO23.5× affinity10 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Colorado Gives Foundation · Rose Community Foundation · The Denver Foundation · The Denver Children's Foundation · Rose Foundation · Ima Foundation · The Colorado Health Foundation · Xcel Energy Foundation · Mile High United Way Inc · Schlessman Foundation Inc · Denver Broncos Foundation · Denver Post Community 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 Peierls Foundation funds: left to right is the share of its income from government, bottom to top the share from Peierls Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%1%5%11%20%funder's share of their income ↑0%23%45%68%90%share of the org’s income from government →median 11%
  • Yale University: 12% of income from government
  • Virginia Garcia Memorial Health Center: 11% of income from government
  • Learning Ally Inc: 4% of income from government
no gov moneyreceives it· size = income
1get no government money at all
15report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–90%
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 Peierls Foundation?

Find your warmest path to Peierls 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 64 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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