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Hertelendy Foundation at a glance

· Private foundation

Hertelendy 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.

$340k
Granted FY2025still arriving
29
Grants FY2025still arriving
5
States reached
$93k
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 2024.

Arts & Culture$532kEducation$290kPublic Benefit$59kInternational$44kFood & Nutrition$36kHealth$33kPublic Safety & Disaster$32kReligion$10kOther$0
02FY2025 · 29 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k21 grants · $37k
  • $10k–50k5 grants · $89k
  • $50k–250k3 grants · $214k
$1,700
Median grant
5
States reached
$5.3M
Total assets
Largest grants
RecipientAmount
San Francisco Asian Art Museum$93,437
George Mark Childrens House$67,000
Northern Light School$53,769
Wheelchair Foundation$21,708
Behring Global Education Foundation$20,000
San Francisco Symphony$17,500
Fine Arts Museums of San Francisco$16,500
Friends of FDN de France$13,156
San Francisco Ballet$7,900
San Francisco Opera$7,396
Global Village Foundation$5,000
Community Music Center$2,600
San Francisco Host Committee$2,500
Head Royce Foundation$2,000
ODC Dance$1,700
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 11%, against an area that typically sits at 10%. 93% of its dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%VIDA: $8k → 10%Fine Arts Museums of San Francisco: $17k → 10%CENTER FOR DISASTER PHILANTHROPY: $20k → 14%VIDA USA: $5k → 10%Fine Arts Museums of San Francisco: $5k → 10%French Heritage Society: $20k → 17%USA for Unhcr-UN Refugee Agency: $6k → 14%Global Village Foundation: $5k → 11%SMITHSONIAN INST: $11k → 14%Vida USA: $5k → 10%Foundation for Art in Embassies: $5k → 14%Wheelchair Foundation: $22k → 9%Behring Global Education Foundation: $20k → 9%VIDA USA: $5k → 10%WHEELCHAIR FOUNDATION: $9k → 9%Friends of FDN De France: $21k → 17%Friends of FDN de France: $13k → 17%Friends of FDN de France: $7k → 17%Friends of FDN De France: $5k → 17%LAWRENCE HALL OF SCIENCE: $6k → 10%VIDA: $5k → 10%San Francisco Asian Art Museum: $135k → 10%Lawrence Hall of Science: $5k → 10%San Francisco Asian Art Museum: $93k → 10%Asian Art Museum: $72k → 10%NEWMAN HALL: $5k → 10%ASIAN ART MUSEUM: $61k → 10%Asian Art Museum: $50k → 10%Asian Art Museum: $42k → 10%ASIAN ART MUSEUM: $33k → 10%San Francisco Host Committee: $33k → 10%San Francisco Host Committee: $21k → 10%San Francisco Symphony: $18k → 10%San Francisco Opera: $12k → 10%San Francisco Opera: $10k → 10%San Francisco Ballet: $8k → 10%San Francisco Opera: $7k → 10%San Francisco Host Committee: $5k → 10%San Francisco Symphony: $5k → 10%Northern Light School: $54k → 10%Northern Light School: $54k → 10%WAC SCHOLFUND: $6k → 10%Northern Light School: $47k → 10%Northern Light School: $37k → 10%Northern Light School: $20k → 10%NORTHERN LIGHT SCHOOL: $10k → 10%NORTHERN LIGHT SCHOOL: $10k → 10%George Mark Childrens House: $67k → 10%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

NH
NY
OH
CA
MD
AR
NC
DC
AL
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.

82%of every dollar goes to organizations it has funded before.
$1.1M · 40 repeat orgs$258k to everyone else

Grantees it renews have grown median revenue +28% since the first grant, against -19% for those funded once.

40 repeat relationships: 13 still active in FY2025, 27 since wound down; 16 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

40
66

Total granted

$1.1M
$137k

Median revenue growth · since first grant

+28%
-19%

Still filing today

57%
20%

New vs renewed · share of each year

In FY2025, 64% of grant dollars renewed an existing relationship; $121k 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
Arts & CultureEducationHealthRecreation & SportsFood & NutritionInternationalOther
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

  • NL
    Northern Light School
    7× · 2017–2025 · $232k · revenue +28%
  • SF
    SAN FRANCISCO HOST COMMITTEE
    4× · 2022–2025 · $61k · revenue +239%
  • SMITHSONIAN INSTITUTION
    4× · 2017–2023 · $52k · revenue +31%

Funded once

  • CF
    CENTER FOR DISASTER PHILANTHROPY INC
    one grant, 2020 · $20k · revenue -22%
  • UF
    USA for Unhcr-UN Refugee Agency
    one grant, 2022 · $6k
  • WS
    WAC SCHOLFUND
    one grant, 2017 · $6k
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
San Francisco Museum of Modern Art

See schedule osfmoma believes the art of our time is vital and shares it with passion and purpose, and that art and the creative process can open minds and help build a better world. for that reason, we assemble unparalleled collections,…

Arts & Culture
2
San Francisco Jazz Organization

The san francisco jazz organization (the organization) is a recognized international leader in jazz creation, presentation, and education. the organization explores the full spectrum of jazz, from the music's origins in the african…

Arts & Culture
3
San Jose Museum of Art Association

Nurture empathy and connection by engaging communities with socially relevant contemporary art

Arts & Culture
4
Oakland Museum of California

The museum's mission is to inspire all californians to create a more vibrant future for themselves and their communities. through collections, exhibitions, education programs, and public dialogue, we inspire people of all ages and…

Arts & Culture
5
San Francisco Challenge dba AmericaOne
Recreation & Sports
6
The International School of San Francisco

Guided by the principles of academic rigor and diversity, the international school of san francisco offers programs of study in french and english to prepare its graduates for a world in which the ability to think critically and to…

Education
7
Sutter Bay Hospitals

MISSION STATEMENT: MISSION: CARING FOR OUR PATIENTS FIRST AND OUR PEOPLE ALWAYS. VISION: TO BE THE MOST COMPREHENSIVE, INTEGRATED AND CONNECTED HEALTH SYSTEM FOR GETTING AND STAYING WELL. VALUES: EXCELLENCE - We deliver high-quality,…

Health
8
Sonoma Botanical Garden
—
9
The Santa Fe Opera

To further the operatic art form by presenting ensemble performances of the highest quality in a varied repertoire of new as well as rarely performed and standard works, to ensure excellence of opera's future through its apprentice…

Arts & Culture
10
San Francisco Art Studio Foundation
—
11
Philharmonia Baroque Orchestra & Chorale

See mission statement starting on page 1 and continuing on schedule o

Arts & Culture
12
San Francisco Philharmonic Orchestra

Take world-class symphonic music off the pedestal and into the heart of our community. San Francisco Philharmonic is an orchestral group dedicated to cultural enrichment, music education and creating a performance platform for women and…

Arts & Culture
How this is measured
The grantee most central to the portfolio’s shape is San Francisco Symphony; the most unlike its peers is Northern California Latvian Assn. 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

45 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. 45 of the 122 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)
8
Early backer (in before they grew)
44/45
Grantees still filing
24/45
Grew since first funded

Where the money sits, by cause and then by grantee

San Francisco Asian Art Museum: $228,251 · OtherSan Francisco Asian Art MuseumSAN FRANCISCO HOST COMMITTEE: $61,130 · OtherSAN FRANCISCO HOST COMMITTEEWheelchair Foundation: $35,383 · OtherWheelchair FoundationBehring Global Education Foundation: $20,000 · Other+91 more: $248,557 · Other+91 moreASIAN ART MUSEUM FOUNDATION OF SAN FRANCISCO: $257,293 · Arts & CultureASIAN ART MUSEUM FOUNDATION OF SA…SMITHSONIAN INSTITUTION: $51,500 · Arts & CultureSMITHSONIAN INSTITUTIONSAN FRANCISCO OPERA ASSOCIATION: $29,871 · Arts & CultureSAN FRANCISCO OPERA ASSOCIATIONCORPORATION OF THE FINE ARTS MUSEUMS: $27,000 · Arts & CultureCORPORATION OF THE FINE ARTS MUSE…SAN FRANCISCO SYMPHONY: $22,500 · Arts & CultureSAN FRANCISCO SYMPHONY+9 more: $30,938 · Arts & Culture+9 moreNorthern Light School: $231,674 · EducationNorthern Light Sch…+2 more: $975 · EducationGeorge Mark Childrens Fund: $67,000 · Health+2 more: $2,525 · HealthFRIENDS OF FONDATION DE FRANCE INC: $33,829 · InternationalFRENCH HERITAGE SOCIETY INC: $25,215 · International+1 more: $1,000 · InternationalCENTER FOR DISASTER PHILANTHROPY INC: $20,000 · Public Safety & DisasterREDWOOD EMPIRE FOOD BANK: $7,000 · Food & NutritionCHRONICLE SEASON OF SHARING FUND: $2,500 · Food & NutritionSECOND HARVEST OF SILICON VALLEY: $2,000 · Food & Nutrition
Other$593,321Arts & Culture$419,102Education$232,649Health$69,525International$60,044Public Safety & Disaster$20,000Food & Nutrition$11,500

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetASIAN ART MUSEUM FOUNDATION OF SAN FRANCISCO: $257,293 over 5y, 0.2% of budgetNorthern Light School: $231,674 over 7y, 1.2% of budgetGeorge Mark Childrens Fund: $67,000 over 1y, 0.8% of budgetSAN FRANCISCO HOST COMMITTEE: $61,130 over 4y, 8.5% of budgetSMITHSONIAN INSTITUTION: $51,500 over 4y, 0.0% of budgetFRIENDS OF FONDATION DE FRANCE INC: $33,829 over 3y, 0.2% of budgetSAN FRANCISCO OPERA ASSOCIATION: $29,871 over 3y, 0.0% of budgetCORPORATION OF THE FINE ARTS MUSEUMS: $27,000 over 5y, 0.0% of budgetFRENCH HERITAGE SOCIETY INC: $25,215 over 4y, 1.3% of budgetSAN FRANCISCO SYMPHONY: $22,500 over 2y, 0.0% of budgetCENTER FOR DISASTER PHILANTHROPY INC: $20,000 over 1y, 0.0% of budgetSAN FRANCISCO FOOD BANK: $9,000 over 4y, 0.0% of budgetSAN FRANCISCO BALLET ASSOCIATION: $7,900 over 1y, 0.0% of budgetREDWOOD EMPIRE FOOD BANK: $7,000 over 3y, 0.0% of budgetTHE AMERICAN BEETHOVEN SOCIETY CO SAN JOSE STATE UNIVERSITY: $6,200 over 4y, 2.6% of budgetCOMMUNITY MUSIC CENTER: $6,138 over 3y, 0.0% of budgetALAMEDA COUNTY COMMUNITY FOOD BANK: $5,000 over 2y, 0.0% of budgetTHE DUNHUANG FOUNDATION INC: $4,500 over 3y, 0.3% of budgetTHE HEAD ROYCE SCHOOL: $3,105 over 2y, 0.0% of budgetCALIFORNIA FIRE FOUNDATION: $2,500 over 1y, 0.0% of budgetCHRONICLE SEASON OF SHARING FUND: $2,500 over 1y, 0.0% of budgetWILDCARE: $2,250 over 5y, 0.0% of budgetSOUTHERN POVERTY LAW CENTER INC: $2,119 over 4y, 0.0% of budgetSan Francisco Film Society: $2,023 over 2y, 0.0% of budgetSECOND HARVEST OF SILICON VALLEY: $2,000 over 1y, 0.0% of budgetNORTHERN CALIFORNIA LATVIAN ASSN: $2,000 over 1y, 2.3% of budgetUNDERDOG ANIMAL RESCUE: $1,750 over 3y, 0.3% of budgetOakland Childrens Fairyland Inc: $1,550 over 2y, 0.0% of budgetEQUAL JUSTICE INITIATIVE: $1,500 over 1y, 0.0% of budgetUnited Help Ukraine Inc: $1,500 over 1y, 0.0% of budgetAmerican Heart Association Inc: $1,500 over 3y, 0.0% of budgetMOVEMBER FOUNDATION: $1,025 over 1y, 0.0% of budgetROOTS OF PEACE: $1,000 over 1y, 0.0% of budgetAMERICAN FRIENDS OF THE PARIS OPERA AND BALLET INC: $1,000 over 1y, 0.1% of budgetRUSSIAN RIVER ALLIANCE: $1,000 over 2y, 0.4% of budgetSan Francisco Performances Inc: $1,000 over 1y, 0.0% of budgetHOPALONG ANIMAL RESCUE: $773 over 2y, 0.1% of budgetTHE COLLEGE PREPARATORY SCHOOL: $500 over 1y, 0.0% of budgetNAACP LEGAL DEFENSE & EDUC FUND INC: $500 over 1y, 0.0% of budgetKQED INC: $500 over 1y, 0.0% of budgetTHE OAKLAND PUBLIC EDUCATION FUND: $475 over 1y, 0.0% of budgetSOCCER WITHOUT BORDERS: $100 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 ASIAN ART MUSEUM FOUNDATION OF SAN FRANCISCO ↗
  • Who funds Northern Light School ↗
  • Who funds George Mark Childrens Fund ↗
  • Who funds SAN FRANCISCO HOST COMMITTEE ↗
  • Who funds SMITHSONIAN INSTITUTION ↗
  • Who funds FRIENDS OF FONDATION DE FRANCE INC ↗
  • Who funds SAN FRANCISCO OPERA ASSOCIATION ↗
  • Who funds CORPORATION OF THE FINE ARTS MUSEUMS ↗
  • Who funds FRENCH HERITAGE SOCIETY INC ↗
  • Who funds SAN FRANCISCO SYMPHONY ↗
  • Who funds CENTER FOR DISASTER PHILANTHROPY INC ↗
  • Who funds SAN FRANCISCO FOOD BANK ↗
  • Who funds SAN FRANCISCO BALLET ASSOCIATION ↗
  • Who funds REDWOOD EMPIRE FOOD BANK ↗
  • Who funds THE AMERICAN BEETHOVEN SOCIETY CO SAN JOSE STATE UNIVERSITY ↗
  • Who funds COMMUNITY MUSIC CENTER ↗
  • Who funds ALAMEDA COUNTY COMMUNITY FOOD BANK ↗
  • Who funds THE DUNHUANG FOUNDATION 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.

The Bessemer Giving F…The San Francisco Fou…Marin Community Found…Gs Donor Advised Phil…Silicon Valley Commun…Morgan Stanley Global…Vanguard Charitable E…The Blackbaud Giving …American Endowment Fo…National Philanthropi…Paypal Charitable Giv…The Bank of America C…
The Bessemer Giving FundNJ14.2× affinity5 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Bessemer Giving Fund · The San Francisco Foundation · Marin Community Foundation · Gs Donor Advised Philanthropy Fund for Wealth Management Inc · Silicon Valley Community Foundation · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · The Blackbaud Giving Fund · American Endowment Foundation · National Philanthropic Trust · Paypal Charitable Giving Fund · The Bank of America Charitable Foundation Inc

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

2024
’20’21’22’23’24’25
no gov · 10%1%3%6%10%funder's share of their income ↑0%8%15%22%30%share of the org’s income from government →
    no gov moneyreceives it· size = income
    1get no government money at all
    5report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–30%
    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 Hertelendy Foundation?

    Find your warmest path to Hertelendy 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 122 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

    Play a game based on Hertelendy’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