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The William Jeff and Jennifer Gross Family Foundation at a glance

· Private foundation

The William Jeff and Jennifer Gross Family Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$18M
Granted FY2024still arriving
59
Grants FY2024still arriving
15
States reached
$3.0M
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through PlinthRead
01What it funds
0197% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2024.

International$35MHealth$27MEducation$17MArts & Culture$16MHuman Services$10MPhilanthropy$7.4MEnvironment$7.3MHousing & Shelter$3.3MOther$0
02FY2024 · 59 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k6 grants · $29k
  • $10k–50k13 grants · $251k
  • $50k–250k18 grants · $2.3M
  • $250k+22 grants · $15M
$150,000
Median grant
15
States reached
$571M
Total assets
Largest grants
RecipientAmount
DOCTORS WITHOUT BORDERS$3,000,000
UNIVERSITY OF MASSACHUSETTS FOUNDATION INC$1,110,000
ATRIUM HEALTH FOUNDATION$1,000,000
MERCY SHIPS$1,000,000
SDSN ASSOCIATION INC$1,000,000
ENVIRONMENTAL ADVOCATES NY INC$1,000,000
CHARLOTTESVILLE AREA COMMUNITY FOUNDATION$875,000
DIVIDED SKY FOUNDATION CORPORATION$750,000
VII FOUNDATION INC$750,000
ACTION AGAINST HUNGER USA$550,000
ORANGEWOOD FOUNDATION$500,000
VANGUARD CHARITABLE ENDOWMENT PROGRAM$500,000
SEGERSTROM CENTER FOR THE ARTS$500,000
BOYS & GIRLS CLUB OF CENTRAL OC$430,000
ORANGE COAST COLLEGE FOUNDATION$400,000
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 (FY18–24, $9.2M) land where the poverty rate runs at 16%, against an area that typically sits at 10%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 10%MIRACLE BABIES: $50k → 11%AFRICAN WOMEN RISING: $400k → 14%FOSTER VILLAGE: $50k → 10%BIG BROTHERS BIG SISTERS OF OKLAHOMA INC: $50k → 15%CHRIST CHILD HOUSE: $100k → 21%SDSN ASSOCIATION INC: $1.5M → 17%PURSUIT FOUNDATION: $30k → 16%COACHELLA VALLEY RESCUE MISSION: $250k → 11%PURSUIT FOUNDATION: $20k → 16%SDSN ASSOCIATION INC: $1.4M → 17%COACHELLA VALLEY RESCUE MISSION: $50k → 11%SDSN ASSOCIATION INC: $1.0M → 17%SDSN ASSOCIATION INC: $1.0M → 17%SDSN ASSOCIATION INC: $1.0M → 17%SDSN ASSOCIATION INC: $900k → 17%SHARE OUR SELVES: $351k → 10%LAURA'S HOUSE: $300k → 10%CHARITY WATER: $60k → 17%CHARITY WATER: $60k → 17%CHARITY WATER: $60k → 17%EDWARD CHARLES FOUNDATION: $330k → 14%FOOD ON FOOT INC: $30k → 14%EDWARD CHARLES FOUNDATION: $250k → 14%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

VT
MN
IL
MI
NY
MA
OR
IN
OH
PA
NJ
CT
CA
UT
CO
VA
MD
KS
NC
DC
HI
OK
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.

87%of every dollar goes to organizations it has funded before.
$114M · 76 repeat orgs$16M to everyone else

Grantees it renews have grown median revenue +22% since the first grant, against +10% for those funded once.

76 repeat relationships: 38 still active in FY2024, 38 since wound down; 17 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

76
78

Total granted

$114M
$14M

Median revenue growth · since first grant

+22%
+10%

Still filing today

87%
74%

New vs renewed · share of each year

In FY2024, 88% of grant dollars renewed an existing relationship; $1.9M went to new ones.

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

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

’18’19’20’21’22’23’24
EducationArts & CultureHuman ServicesHealthInternationalEnvironmentOther
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× · 2018–2024 · $21M · revenue +89%
  • CF
    CHOC FOUNDATION
    5× · 2018–2024 · $9.6M · revenue +53%
  • AA
    ACTION AGAINST HUNGER - USA
    7× · 2018–2024 · $8.5M · revenue +10%

Funded once

  • LD
    LIVING DESERT THEgraduated
    one grant, 2023 · $2.0M · revenue +57%
  • SD
    SUSTAINABLE DEVELOPMENT SOLUTIONS NETWORK
    one grant, 2019 · $1.4M
  • TE
    THE ENVIRONMENTAL MEDIA ASSOCIATIONINC
    one grant, 2022 · $1.2M · revenue +5% · 78% of their budget
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
Ucla Foundation

The ucla foundation is the giving, receiving, and investing arm of the ucla campus. the foundation enables private donors to help build, sustain and advance one of the world's finest academic and research institutions. private philanthropy…

Education
2
The San Diego Foundation

The san diego foundation inspires enduring philanthropy and enables community solutions to improve the quality of life in our region.

Philanthropy
3
League of California Community Foundations

The league of california community foundations promotes and strengthens community foundations in california. through collaboration and shared learning among member foundations and building partnerships with private and public entities, we…

Philanthropy
4
Uc Santa Barbara Foundation

The uc santa barbara foundation actively works to further the goals of the university of california, santa barbara. the foundation seeks to maintain and nurture the university's quality and distinction. on behalf of the campus, the…

Education
5
Ucsf Foundation Investment Company

The organization provides professional investment management services for endowed gifts and financial assets entrusted to the ucsf foundation.

Education
6
California State University Long Beach Research Foundation

Serves the mission of the university by supporting and engaging in research, entrepreneurship, community service, sponsored programs and the acquisition of private resources.

Education
7
California Dental Association Foundation

The foundation's mission is to improve the oral health of all californians by supporting the dental profession and its efforts to meet community needs.

Science & Tech
8
The Uc Davis Foundation

The mission of the uc davis foundation is to secure, steward and manage private gifts for uc davis.

Education
9
The California Channel

To distribute public affairs and other educational information in order to create an electronic bridge between californians and their public officials, and, in the process educate a new generation of voting citizens and civic leaders who…

—
10
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
11
Community Foundation Santa Cruz County

To promote philanthropy to make santa cruz county a better place to live, now and in the future.we bring together people, ideas, and resources to inspire philanthropy and accomplish great things.

Philanthropy
12
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
How this is measured
The grantee most central to the portfolio’s shape is Oneoc; the most unlike its peers is Pharia 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

149 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. 149 of the 183 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.

17
Load-bearing (≥25% of a budget)
30
Early backer (in before they grew)
149/149
Grantees still filing
99/149
Grew since first funded

Where the money sits, by cause and then by grantee

MEDECINS SANS FRONTIERES USA INC: $20,769,250 · InternationalMEDECINS SANS FRONTIERES USA …ACTION AGAINST HUNGER - USA: $8,517,650 · InternationalACTION AGAINST HUNGER - USAMercy Ships International: $4,000,000 · InternationalMercy Ships International+8 more: $1,125,000 · InternationalORANGE COUNTY TEACHERS OF THE YEAR: $3,761,250 · OtherORANGE COUNTY TEACHERS OF T…Wilcox Health Foundation: $3,750,000 · OtherWilcox Health FoundationTHE SALVATION ARMY: $1,883,200 · OtherTHE SALVATION ARMYTHE DIVIDED SKY FOUNDATION CORPORATION: $1,550,000 · OtherLESTONNAC FREE CLINIC: $1,526,875 · OtherSUSTAINABLE DEVELOPMENT SOLUTIONS NETWORK: $1,350,000 · OtherIndividual grant recipient: $1,150,000 · OtherLIVING DESERT THE: $2,000,000 · OtherLIVING DESERT THETHE ENVIRONMENTAL MEDIA ASSOCIATIONINC: $1,200,000 · OtherENVIRONMENTAL ADVOCATES NY INC: $1,180,000 · Other+82 more: $13,548,137 · Other+82 moreCHOC FOUNDATION: $9,600,000 · HealthCHOC FOUNDATIONATRIUM HEALTH FOUNDATION: $8,000,000 · HealthATRIUM HEALTH FO…+11 more: $1,773,400 · Health+11 moreTHE VII FOUNDATION INC: $11,705,000 · Arts & CultureTHE VII FOUND…DOUG PENSINGER PHOTOGRAPHY FUND: $1,350,000 · Arts & CultureDOUG PENSINGE…ROOF ABOVE INC: $1,250,000 · Arts & CultureROOF ABOVE IN…CREATIVE VISIONS FOUNDATION: $875,000 · Arts & CultureCREATIVE VISI…+12 more: $1,125,000 · Arts & Culture+12 moreHarbor Day Endowment Corporation: $3,800,000 · EducationHarbor Day …Harbor Day School: $3,275,000 · EducationHarbor Day …UNIVERSITY OF MASSACHUSETTS FOUNDATION INC: $1,130,000 · EducationUNIVERSITY …Trustees of Tufts College: $900,000 · EducationTrustees of…Orange Coast College Foundation: $850,000 · EducationOrange Coas…PHARIA FOUNDATION: $694,000 · EducationTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK: $493,600 · Education+11 more: $2,225,000 · Education+11 moreSDSN ASSOCIATION INC: $6,750,000 · Human ServicesEDWARD CHARLES FOUNDATION: $580,000 · Human ServicesAFRICAN WOMEN RISING: $400,000 · Human ServicesShare Our Selves Corporation: $350,800 · Human Services+11 more: $1,179,000 · Human ServicesTHE NEW YORK TIMES COMMUNITIES FUND: $4,261,250 · PhilanthropyCHARLOTTESVILLE AREA COMMUNITY FOUNDATION: $875,000 · PhilanthropyTHE AFFORDABLE HOUSING OPPORTUNITY FUND: $800,000 · PhilanthropyORANGE COUNTY COMMUNITY FOUNDATION: $501,550 · PhilanthropyVANGUARD CHARITABLE ENDOWMENT PROGRAM: $500,000 · PhilanthropyANAHEIM COMMUNITY FOUNDATION: $450,000 · Philanthropy+12 more: $1,066,000 · Philanthropy
International$34,411,900Other$32,899,462Health$19,373,400Arts & Culture$16,305,000Education$13,367,600Human Services$9,259,800Philanthropy$8,453,800

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 budgetMEDECINS SANS FRONTIERES USA INC: $20,769,250 over 7y, 0.6% of budgetTHE VII FOUNDATION INC: $11,705,000 over 7y, 90% of budgetCHOC FOUNDATION: $9,600,000 over 5y, 12% of budgetACTION AGAINST HUNGER - USA: $8,517,650 over 7y, 3.6% of budgetATRIUM HEALTH FOUNDATION: $8,000,000 over 5y, 3.9% of budgetSDSN ASSOCIATION INC: $6,750,000 over 6y, 11% of budgetTHE NEW YORK TIMES COMMUNITIES FUND: $4,261,250 over 2y, 23% of budgetMercy Ships International: $4,000,000 over 2y, 2.2% of budgetHarbor Day Endowment Corporation: $3,800,000 over 3y, 61% of budgetWilcox Health Foundation: $3,750,000 over 2y, 79% of budgetHarbor Day School: $3,275,000 over 3y, 6.9% of budgetLIVING DESERT THE: $2,000,000 over 1y, 6.5% of budgetTHE DIVIDED SKY FOUNDATION CORPORATION: $1,550,000 over 2y, 56% of budgetLESTONNAC FREE CLINIC: $1,526,875 over 5y, 24% of budgetDOUG PENSINGER PHOTOGRAPHY FUND: $1,350,000 over 3y, 100% of budgetROOF ABOVE INC: $1,250,000 over 3y, 2.2% of budgetTHE ENVIRONMENTAL MEDIA ASSOCIATIONINC: $1,200,000 over 1y, 78% of budgetENVIRONMENTAL ADVOCATES NY INC: $1,180,000 over 2y, 37% of budgetUNIVERSITY OF MASSACHUSETTS FOUNDATION INC: $1,130,000 over 2y, 1.1% of budgetGLOBAL COALITION ON SUSTAINABILITY FKA US COALITION ON SUSTAINABILITY: $1,050,000 over 4y, 79% of budgetTrustees of Tufts College: $900,000 over 3y, 0.0% of budgetCREATIVE VISIONS FOUNDATION: $875,000 over 6y, 10% of budgetCHARLOTTESVILLE AREA COMMUNITY FOUNDATION: $875,000 over 1y, 2.2% of budgetOrange Coast College Foundation: $850,000 over 2y, 4.3% of budgetCHILD CREATIVITY LAB: $838,000 over 6y, 36% of budgetTHE AFFORDABLE HOUSING OPPORTUNITY FUND: $800,000 over 1y, 29% of budgetPHARIA FOUNDATION: $694,000 over 4y, 100% of budgetEAR COMMUNITY INC: $600,000 over 3y, 60% of budgetORANGEWOOD FOUNDATION: $600,000 over 2y, 2.4% of budgetEDWARD CHARLES FOUNDATION: $580,000 over 2y, 0.6% of budgetTHE MILLENNIUM PROMISE ALLIANCE INC: $510,000 over 2y, 19% of budgetORANGE COUNTY COMMUNITY FOUNDATION: $501,550 over 4y, 0.3% of budgetSegerstrom Center for the Arts: $500,000 over 1y, 0.4% of budgetVANGUARD CHARITABLE ENDOWMENT PROGRAM: $500,000 over 1y, 0.0% of budgetCHRIST CHILD SOCIETY INC: $500,000 over 1y, 21% of budgetTHE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK: $493,600 over 3y, 0.0% of budgetAMERICAN FAMILY HOUSING: $470,000 over 3y, 2.1% of budgetANAHEIM COMMUNITY FOUNDATION: $450,000 over 4y, 12% of budgetOPEN ROADS ACADEMY INC: $420,000 over 3y, 49% of budgetAMERICAN INDIAN COLLEGE FUND: $400,000 over 2y, 0.4% of budgetAFRICAN WOMEN RISING: $400,000 over 1y, 19% of budgetPUEBLO UNIDO CDC: $370,000 over 2y, 8.8% of budgetShare Our Selves Corporation: $350,800 over 1y, 1.8% of budgetUNITED CEREBRAL PALSY ASSOC OF OC: $330,000 over 3y, 1.7% of budgetUSA Gymnastics: $330,000 over 1y, 1.3% of budgetUniversity of Miami: $320,000 over 3y, 0.0% of budgetCOACHELLA VALLEY RESCUE MISSION: $300,000 over 2y, 1.7% of budgetCOURT APPOINTED SPECIAL ADVOCATE OF ORANGE COUNTY: $300,000 over 1y, 6.2% 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.

Orange County Communi…Laguna Beach Communit…Macgillivray Family F…Ueberroth Family Foun…The Hanauer Family Fo…O L Halsell FoundationThe William and Sue G…J Stanley & Mary W Jo…Hoag Memorial Hospita…The R & a Davis Famil…The Hexberg Family Fo…Croul Family Foundati…
Orange County Community FoundationCA50.9× affinity31 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Orange County Community Foundation · Laguna Beach Community Foundation · Macgillivray Family Foundation · Ueberroth Family Foundation · The Hanauer Family Foundation · O L Halsell Foundation · The William and Sue Gross Family Foundation · J Stanley & Mary W Johnson Family Foundation · Hoag Memorial Hospital Presbyterian · The R & a Davis Family Foundation · The Hexberg Family Foundation · Croul Family 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 The William Jeff and Jennifer Gross Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The William Jeff and Jennifer Gross Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 50%6%25%56%100%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 13%
  • Association for Autism and Neurodiversity Inc: 24% of income from government
  • Trustees of Tufts College: 13% of income from government
  • University of Miami: 5% of income from government
no gov moneyreceives it· size = income
5get no government money at all
41report government grants on their 990 we could not trace to a source (not plotted)
0rely 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 The William Jeff and Jennifer Gross Family Foundation?

Find your warmest path to The William Jeff and Jennifer Gross 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 183 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on William Jeff and Jennifer Gross 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