Skip to content
Sam and Peggy Grossman Family Foundation at a glance

· Public charity

Sam and Peggy Grossman Family Foundation

To perform the functions of, or to carry out the purposes of the arizona community foundation, an az nonprofit corporation, so long as the arizona community foundation, inc.

$322k
Granted FY2025still arriving
11
Grants FY2025still arriving
6
States reached
$50k
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 2025.

Health$1.4MEducation$526kPhilanthropy$525kArts & Culture$382kEnvironment$103kRecreation & Sports$101kInternational$61kYouth Development$30kOther$0
02FY2025 · 11 grants

Where the money goes

Grants by size, and the largest recipients.

How this is measured
The 11 grants below total $242,500, the rows itemized in this filing. The $322,250 headline is the total grant expense on the return; the other $79,750 is giving the schedule does not break out (grants under the $5,000 itemization floor, grants to individuals, grants on other schedules). Every figure below describes the itemized rows only.

By grant size · FY2025

  • Under $10k1 grant · $8k
  • $10k–50k9 grants · $185k
  • $50k–250k1 grant · $50k
$20,000
Median grant
6
States reached
$22M
Total assets
Largest grants
RecipientAmount
IAMA THEATRE COMPANY$50,000
SUN VALLEY WRITERS CONFERENCE$30,000
IDAHO BASECAMP INC$30,000
NATIONAL CONSTITUTION CENTER$30,000
MANHATTAN CLASS COMPANY INC$25,000
PLOUGHSHARES FUND INC$20,000
LYMPHATIC EDUCATION AND RESEARCH NETWORK$20,000
IDAHO RIVERS UNITED INC$10,000
RIOS TO RIVERS$10,000
SAGE SCHOOL$10,000
UTAH FILM CENTER$7,500
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 (FY17–23, $44k) land where the poverty rate runs at 7%, against an area that typically sits at 10%. 0% of those dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 10%SUN VALLEY INSTITUTE FOR RESILIENCE INC: $15k → 7%FLOURISH FOUNDATION: $8k → 7%flourish foundation: $7k → 7%SUN VALLEY INSTITUTE FOR RESILIENCE INC: $5k → 7%SUN VALLEY INSTITUTE FOR RESILIENCE INC: $5k → 7%FLOURISH FOUNDATION: $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

WA
ID
MT
NY
OH
PA
CA
UT
CO
AZ
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.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 15% of Sam and Peggy Grossman Family Foundation’s grant dollars are earmarked for a different county than the recipient’s own address.

Sam and Peggy Grossman Family Foundationlessmore of its giving
Placed by recipient address · 2.2% directed abroad (not shown)
How this is measured
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

74%of every dollar goes to organizations it has funded before.
$1.4M · 15 repeat orgs$514k to everyone else

Grantees it renews have grown median revenue +25% since the first grant, against +20% for those funded once.

15 repeat relationships: 7 still active in FY2025, 8 since wound down; 4 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

15
12

Total granted

$1.4M
$421k

Median revenue growth · since first grant

+25%
+20%

Still filing today

100%
100%

New vs renewed · share of each year

In FY2025, 62% of grant dollars renewed an existing relationship; $93k 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
HealthEducationEnvironmentArts & CultureHuman ServicesInternationalOther
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

  • BN
    BARROW NEUROLOGICAL FOUNDATION
    5× · 2018–2022 · $450k · revenue +9%
  • SUN VALLEY WRITERS' CONFERENCE INC
    7× · 2017–2025 · $182k · revenue +89%
  • SL
    ST LUKE'S WOOD RIVER FOUNDATION INC
    3× · 2020–2022 · $150k · revenue +27%

Funded once

  • SV
    Sun Valley Community School Incgraduated
    one grant, 2017 · $255k · revenue +56%
  • WR
    WOOD RIVER LAND TRUST COgraduated
    one grant, 2024 · $31k · revenue +35%
  • UO
    UNIVERSITY OF WASHINGTON FOUNDATIONgraduated
    one grant, 2019 · $30k · revenue +28%
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
The Water Research Foundation

The purpose of the water research foundation (wrf) is a definitive research organization to advance the science of all things water to better meet the evolving needs of its subscribers and the water sector. to engage exclusively in…

Environment
3
The Sierra Fund

The Sierra Fund (TSF) is a non-profit organization with a mission to restore ecosystem and community resiliency in the Sierra Nevada.

Environment
4
Western Electricity Coordinating Council

To effectively and efficiently mitigate risks to the reliability and security of the western interconnection's bulk power system.

Public Benefit
5
Healthy Environment Alliance of Utah

Heal utah's mission is to protect utah's environment and its people by promoting clean air, clean energy, and comprehensive solutions to radioactive and toxic waste.

Environment
6
Life Science Washington

Life science washington is a non-profit trade and professional association dedicated to promoting innovation and responsible growth in the life sciences and biomedical industries in the state of washington. promotion and education are…

—
7
Uc Riverside Foundation

To support educational, research and public functions and programs of the riverside campus of the university of california.

Education
8
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
9
California Institute for Immunology and Immunotherapy

To harness the power of the human immune system and advanced computing technologies to create and translate scientific discoveries into next generation vaccines and therapies for prevention, control and cure of chronic diseases, enabling…

Health
10
Utah Water Ways Inc

Utah water ways promotes water conservation through collaboration between government, non-profit groups, and private sector partners and empowers the public to be wise stewards of this critical shared resource.

Environment
11
World Resources Institute

Wri is committed to creating change that improves people's lives and ensures the natural world can thrive. (see schedule o)wri's bold vision requires a formula for success we call "count it. change it. scale it.":- count it: our work is…

International
12
Summit Land Conservancy

Summit land conservancy works with utah communities to conserve land and water for the benefit of the people and nature.

Environment
How this is measured
The grantee most central to the portfolio’s shape is Saint John's Health Center Foundation; the most unlike its peers is Idaho Rivers United. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
05the grantee network

34 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.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

2
Load-bearing (≥25% of a budget)
7
Early backer (in before they grew)
34/34
Grantees still filing
24/34
Grew since first funded

Where the money sits, by cause and then by grantee

UCLA FOUNDATION: $650,000 · EducationUCLA FOUNDATIONSun Valley Community School Inc: $255,000 · EducationSun Valley Community School IncSUN VALLEY WRITERS' CONFERENCE INC: $182,000 · EducationSUN VALLEY WRITERS' CONFERENCE INCTHE SAGE SCHOOL INC: $86,250 · EducationTHE SAGE SCHOOL INC+3 more: $42,000 · EducationBARROW NEUROLOGICAL FOUNDATION: $450,000 · HealthBARROW NEUROLOGICAL FOUNDATIONST LUKE'S WOOD RIVER FOUNDATION INC: $150,000 · HealthST LUKE'S WOOD RIVER FOUNDATION…HAVE A HEART SAVE A HEART: $149,000 · HealthHAVE A HEART SAVE A HEARTAMERICAN CANCER SOCIETY INC: $40,000 · HealthLYMPHATIC EDUCATION & RESEARCH NETWORK INC (LE&RN): $40,000 · HealthSAINT JOHN'S HEALTH CENTER FOUNDATION: $30,000 · Health+1 more: $5,000 · HealthFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $525,000 · Community ImprovementFIDELITY INVESTMEN…IAMA THEATRE COMPANY: $117,500 · Arts & CultureNATIONAL CONSTITUTION CENTER: $30,000 · Arts & CultureMANHATTAN CLASS COMPANY INC: $25,000 · Arts & CultureSUN VALLEY SUMMER SYMPHONY INC: $10,000 · Arts & CultureUTAH FILM CENTER: $7,500 · Arts & CultureWOOD RIVER LAND TRUST CO: $31,000 · EnvironmentIDAHO BASE CAMP INC: $30,000 · EnvironmentIDAHO RIVERS UNITED: $30,000 · EnvironmentRios to Rivers: $20,000 · EnvironmentSAWTOOTH SOCIETY INC: $11,200 · EnvironmentCLIMATE RIDE INC: $7,000 · EnvironmentSUN VALLEY SKI EDUCATION FOUNDATION INC: $44,500 · OtherTHE NATURE CONSERVANCY: $10,000 · OtherSUN VALLEY CENTER FOR THE ARTS INC: $10,000 · OtherSUN VALLEY INSTITUTE FOR RESILIENCE: $25,000 · OtherFLOURISH FOUNDATION INC: $19,000 · OtherHIGHER GROUND USA INC: $25,000 · OtherBLAINE COUNTY HUNGER COALITION INC: $25,000 · OtherPLOUGHSHARES FUND INC: $61,000 · International
Education$1,215,250Health$864,000Community Improvement$525,000Arts & Culture$190,000Environment$129,200Other$158,500International$61,000

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 budgetUCLA FOUNDATION: $650,000 over 7y, 0.0% of budgetFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $525,000 over 4y, 0.0% of budgetBARROW NEUROLOGICAL FOUNDATION: $450,000 over 5y, 0.3% of budgetSun Valley Community School Inc: $255,000 over 1y, 2.2% of budgetSUN VALLEY WRITERS' CONFERENCE INC: $182,000 over 7y, 1.8% of budgetST LUKE'S WOOD RIVER FOUNDATION INC: $150,000 over 3y, 1.6% of budgetHAVE A HEART SAVE A HEART: $149,000 over 2y, 55% of budgetIAMA THEATRE COMPANY: $117,500 over 3y, 6.8% of budgetTHE SAGE SCHOOL INC: $86,250 over 6y, 0.7% of budgetPLOUGHSHARES FUND INC: $61,000 over 5y, 0.4% of budgetSUN VALLEY SKI EDUCATION FOUNDATION INC: $44,500 over 6y, 0.3% of budgetAMERICAN CANCER SOCIETY INC: $40,000 over 2y, 0.0% of budgetLYMPHATIC EDUCATION & RESEARCH NETWORK INC (LE&RN): $40,000 over 3y, 1.6% of budgetWOOD RIVER LAND TRUST CO: $31,000 over 1y, 0.6% of budgetSAINT JOHN'S HEALTH CENTER FOUNDATION: $30,000 over 2y, 0.1% of budgetIDAHO RIVERS UNITED: $30,000 over 3y, 2.3% of budgetNATIONAL CONSTITUTION CENTER: $30,000 over 1y, 0.1% of budgetUNIVERSITY OF WASHINGTON FOUNDATION: $30,000 over 1y, 0.0% of budgetHIGHER GROUND USA INC: $25,000 over 1y, 0.6% of budgetBLAINE COUNTY HUNGER COALITION INC: $25,000 over 1y, 0.5% of budgetSUN VALLEY INSTITUTE FOR RESILIENCE: $25,000 over 3y, 3.0% of budgetMANHATTAN CLASS COMPANY INC: $25,000 over 1y, 0.3% of budgetRios to Rivers: $20,000 over 2y, 0.9% of budgetFLOURISH FOUNDATION INC: $19,000 over 3y, 2.5% of budgetSAWTOOTH SOCIETY INC: $11,200 over 1y, 2.1% of budgetSUN VALLEY SUMMER SYMPHONY INC: $10,000 over 1y, 0.3% of budgetTHE NATURE CONSERVANCY: $10,000 over 1y, 0.0% of budgetSUN VALLEY CENTER FOR THE ARTS INC: $10,000 over 1y, 0.4% of budgetCLIMATE RIDE INC: $7,000 over 1y, 0.1% of budgetTHE LIBRARY FOUNDATION OF LOS ANGELES: $5,000 over 1y, 0.1% of budgetUnited Cancer Front A Corporation: $5,000 over 1y, 35% 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.

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.

Spur Community Founda…The Springcreek Found…Heinz Family Foundati…Boswell Family Founda…Idaho Community Found…Marin Community Found…The Bessemer Giving F…Jonathan and Susan Do…The Quinn Family Foun…Koa Charitable TrustThe Von Der Heyden Fa…The Marshall Frankel …
Spur Community Foundation IncID24.2× affinity9 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Spur Community Foundation Inc · The Springcreek Foundation · Heinz Family Foundation · Boswell Family Foundation · Idaho Community Foundation Inc · Marin Community Foundation · The Bessemer Giving Fund · Jonathan and Susan Dolgen Family Foundation Inc · The Quinn Family Foundation Inc · Koa Charitable Trust · The Von Der Heyden Family Foundation · The Marshall Frankel 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 Sam and Peggy Grossman Family Foundation funds: left to right is the share of its income from government, bottom to top the share from Sam and Peggy Grossman Family 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%10%20%30%40%share of the org’s income from government →
    no gov moneyreceives it· size = income
    1get no government money at all
    8report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–40%
    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 Sam and Peggy Grossman Family Foundation?

    Find your warmest path to Sam and Peggy Grossman Family 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 34 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 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 Sam and Peggy Grossman Family’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