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Plinth

· Private foundation

Tomberg Family Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$207k
Granted FY2025still arriving
11
Grants FY2025still arriving
7
States reached
$25k
Largest
01What you fund
01100% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20222025.

Civil Rights$67kHuman Services$50kEnvironment$45kInternational$37kHealth$30kYouth Development$25kAnimals$20kEducation$15kOther$0
02FY2025 · 11 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k1 grant · $5k
  • $10k–50k10 grants · $202k
$22,000
Median grant
7
States reached
$2.6M
Total assets
Largest grants
RecipientAmount
ONE HEART WORLDWIDE$25,000
PACIFIC FOREST TRUST INC$25,000
SOUTHEAST MISSOURI NETWORK AGAINST SEXUAL VIOLENCE INC$25,000
CAIRN HEALTH INC$25,000
PROJECT 360 YOUTH SERVICES$25,000
CONGO EDUCATION PARTNERS INC$22,000
AMERICAN CAREER COLLEGE EDUCATION FOUNDATION$15,000
AMERICAN CIVIL LIBERTIES UNION FOUNDATION INC$13,334
NATIONAL COUNCIL OF NONPROFITS$13,333
ADVOCATES FOR YOUTH$13,333
AIDS HEALTHCARE FOUNDATION (AHF)$5,000
02The need
03

Do your dollars go where the need is?

Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.

show:

Your human-services grants (FY25–25, $55k) land where the poverty rate runs at 15%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 11%AIDS HEALTHCARE FOUNDATION (AHF): $5k → 14%ONE HEART WORLDWIDE: $25k → 16%SOUTHEAST MISSOURI NETWORK AGAINST SEXUAL VIOLENCE INC: $25k → 14%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.

Which US states your grants reach

NH
WA
NY
MA
OH
CA
MO
KS
NC
DC
AL

US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.

03Your field

The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.

1
Coalition for Green Capital D/B/a American Green Bank Consortium

Cgc operates as a nonprofit financial institution that invests directly and through partners to transform financial markets by using public and private investing to accelerate the deployment of projects that strengthen the grid, reduce…

Environment
2
Center for Arms Control and

A nonprofit, nonpartisan research organization dedicated to enhancing international peace and security in the 21st century, thereby retaining its focus on nuclear weapons but expanding to include other present emerging security threats.

International
3
Actionaid Usa

Actionaid is an international network building a just, equitable, and sustainable world in solidarity with communities on the frontlines of poverty and injustice. actionaid usa is the u.s. branch of actionaid international, which works in…

Social Science
4
Environmental Investigation Agency

To establish and promote programs to protect the global climate, forests, wildlife and the natural environment, through research, advocacy, and investigation.

International
5
American College Health Association

The american college health association (acha) serves as the principal leadership organization for advancing the health of college students and campus communities through advocacy, education, and research.

Health
6
International Rivers Network

International Rivers protects rivers and defends the rights of communities that depend on them.

Environment
7
Council On Education for Public Health

CEPH assures quality in public health education and training to advance the science and practice of public health.

8
National Association of Regulatory Utility Commissioners

Founded in 1889, the national association of regulatory utility commisioners (naruc) is a non-profit organization dedicated to representing the state public service commisions who regulate the utilities that provide essential services such…

9
Asociacion Interamericana Para La Defensa Del Ambiente

To strenghten people's ability to guarantee their individual and collective right to a healthy environment, via the development, implementation, and effective enforcement of national and international law.

Crime & Legal
10
American Energy Alliance

American energy alliance (aea) is an educational advocacy and grassroots organization. aea is related to the institute for energy research (ier). aea's mission is to enlist, educate, and empower energy consumers to encourage policymakers…

Civil Rights
11
American Council for an Energy-Efficient Economy

Aceee seeks to aggressively mobilize and scale up energy efficiency to reduce greenhouse gas emissions and combat climate change, and to do so at substantial economic savings. we seek a vibrant and equitable economy that uses energy more…

Environment
12
Environment Next Inc

Environment next supports individuals, nonprofits and businesses around the world on solutions to complex climate issues. we provide leadership, outreach and communication support, grants, and investments to empower leaders and their ideas…

Environment

For reference, the grantee most central to the portfolio’s shape is Advocates for Youth and the most unlike its peers is Emtomorrow. 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

15 grantees tracked through their own filings, 2017–2025.

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 20172025, not grant rows in a single year — so this will not match the grant count on the cover.

1
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
14/15
Grantees still filing
6/15
Grew since you first funded

Where your money sits — by cause, then by grantee

The Pacific Forest Trust Incorporated — $45,000 · OtherThe Pacific Forest Trust Incorpor…CAIRN HEALTH INC — $25,000 · OtherCAIRN HEALTH INCADVOCATES FOR YOUTH — $13,333 · OtherADVOCATES FOR YOUTHEMTOMORROW — $10,000 · OtherEMTOMORROWONE HEART WORLDWIDE — $25,000 · Human ServicesONE HEART WORLDWIDESOUTHEAST MISSOURI NETWORK AGAINST SEXUAL VIOLENCE — $25,000 · Human ServicesSOUTHEAST MISSOURI NETWOR…RAIN FOR THE SAHEL AND SAHARA INC — $15,000 · Human ServicesRAIN FOR THE SAHEL AND SA…AIDS HEALTHCARE FOUNDATION — $5,000 · Human ServicesAIDS HEALTHCARE FOUNDATIO…GUNSDOWN INC — $40,000 · Civil RightsGUNSDOWN INCAMERICAN CIVIL LIBERTIES UNION FOUNDATION INC — $13,334 · Civil RightsAMERICAN CIVIL LIBE…PROJECT 360 YOUTH SERVICES INC — $25,000 · Youth DevelopmentPROJECT 3…CONGO EDUCATION PARTNERS INC — $22,000 · InternationalNOOKSACK SALMON ENHANCEMENT ASSOCIATION — $20,000 · AnimalsAMERICAN CAREER COLLEGE EDUCATIONAL FOUNDATION — $15,000 · EducationNational Council of Nonprofits — $13,333 · Philanthropy
Other$93,333Human Services$70,000Civil Rights$53,334Youth Development$25,000International$22,000Animals$20,000Education$15,000Philanthropy$13,333

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetThe Pacific Forest Trust Incorporated — $45,000 over 2y, 0.1% of budgetGUNSDOWN INC — $40,000 over 2y, 2.1% of budgetPROJECT 360 YOUTH SERVICES INC — $25,000 over 1y, 1.5% of budgetSOUTHEAST MISSOURI NETWORK AGAINST SEXUAL VIOLENCE — $25,000 over 1y, 1.9% of budgetCONGO EDUCATION PARTNERS INC — $22,000 over 1y, 13% of budgetNOOKSACK SALMON ENHANCEMENT ASSOCIATION — $20,000 over 1y, 0.6% of budgetRAIN FOR THE SAHEL AND SAHARA INC — $15,000 over 1y, 2.9% of budgetAMERICAN CIVIL LIBERTIES UNION FOUNDATION INC — $13,334 over 1y, 0.0% of budgetADVOCATES FOR YOUTH — $13,333 over 1y, 0.2% of budgetEMTOMORROW — $10,000 over 1y, 48% of budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.

The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.

Hopewell FundDC13.3× affinity4 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: Hopewell Fund · The William & Flora Hewlett Foundation · National Philanthropic Trust · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile Foundation

Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.

Government reliance of your grantees

Every dot is one organization Tomberg Family Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.

2024
202122232425
no gov · 00%3%13%28%50%your share of their income ↑0%19%38%56%75%share of the org’s income from government
    no gov moneyreceives it· size = income
    0get no government money at all
    2report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–75%
    typical government reliance, FY2025

    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 your grant caused the public funding. Coverage is precision-first — a floor, not 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 12–24 months.

    On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 15 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

    Generated from your IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12–24 months behind; figures are dated accordingly.

    Source object · view filing

    More from the funding graph