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· Private foundation

The Hebb Family Private 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.

$189k
Granted FY2025still arriving
31
Grants FY2025still arriving
8
States reached
$55k
Largest
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Education$758kHealth$174kPhilanthropy$120kArts & Culture$53kReligion$38kEnvironment$33kSocial Science$20kScience & Tech$18kOther$0
02FY2025 · 31 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k26 grants · $45k
  • $10k–50k4 grants · $89k
  • $50k–250k1 grant · $55k
$2,000
Median grant
8
States reached
$3.5M
Total assets
Largest grants
RecipientAmount
THE JOHNS HOPKINS UNIVERSITY$55,000
United Way of Central Massachusetts$25,000
Cristo Rey Jesuit School$25,000
KENYON COLLEGE$25,000
THE TOMORROW FUND$14,000
MICA INC$5,000
ST TIMOTHY'S SCHOOL$2,000
GILMAN SCHOOL$2,000
WALTER ART MUSEUM$2,000
HARVARD BUSINESS SCHOOL$2,000
GETTYSBURG COLLEGE$2,000
GARRISON FOREST SCHOOL$2,000
BROWN UNIVERSITY$2,000
MARYLAND SCIENCE CENTER$2,000
WHEELER SCHOOL$2,000
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, $13k) land where the poverty rate runs at 15%, against an area that typically sits at 9%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%American Red cross: $5k → 14%AMERICAN NATIONAL RED CROSS: $2k → 14%American Red cross: $1k → 14%American Red cross: $1k → 14%AMERICAN NATIONAL RED CROSS: $1k → 14%CENTER FOR URBAN FAMILIES INC: $500 → 19%CENTER FOR URBAN FAMILIES INC: $500 → 19%Catholic Charities: $2k → 19%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

WI
NY
MA
OH
PA
RI
VA
MD
DC
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.

94%of every dollar goes to organizations it has funded before.
$1.2M · 39 repeat orgs$79k to everyone else

39 repeat relationships: 29 still active in FY2025, 10 since wound down; 1 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

39
6

Total granted

$1.2M
$54k

Median revenue growth · since first grant

+24%
+68%

Still filing today

67%
33%

New vs renewed · share of each year

In FY2025, 87% of grant dollars renewed an existing relationship; $25k 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
EducationArts & CultureHuman ServicesHealthEnvironmentInternationalOther
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

  • JOHNS HOPKINS UNIVERSITY
    3× · 2023–2025 · $163k · revenue +4%
  • TT
    THE TOMORROW FUND
    7× · 2017–2025 · $98k · revenue +36%
  • TU
    THE UNITED WAY OF CENTRAL MARYLAND INC
    4× · 2019–2022 · $95k · revenue +27%

Funded once

  • JH
    JOHNS HOPKINS KIMMEL CANCER CENTER
    one grant, 2022 · $50k
  • MM
    MERCY MEDICAL HEALTH FOUNDATION
    one grant, 2020 · $2k
  • AC
    ASSOCIATED CATHOLIC CHARITIES INCgraduated
    one grant, 2017 · $2k · 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
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
2
University of Maryland Physicians Pa

Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…

—
3
University of New Haven

The University of New Haven is a student-centered comprehensive university with an emphasis on excellence in liberal arts and professional education. Our mission is to prepare our students to lead purposeful and fulfilling lives in a…

Education
4
University of Maryland Oncology Associates Pa

Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…

Health
5
University of Maryland Anesthesiology Associates Pa

Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…

—
6
Wilson College

Wilson college empowers students to be confident and critical thinkers, creative visionaries, effective communicators, honorable leaders, and agents of justice.

Education
7
University of Maryland Eye Associates Pa

Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…

Health
8
University of Maryland Neurosurgeryassociates Pa

Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…

Education
9
University of Maryland Pediatric Associates Pa

Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…

Health
10
University of Maryland Dermatologists Pa

Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…

Health
11
University of Maryland Surgical Associates Pa

Under the medical service plan of the university of maryland school of medicine, medical services are rendered by the members of the faculty on behalf of the school of medicine in connection with their duties to provide clinical…

Health
12
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
How this is measured
The grantee most central to the portfolio’s shape is Gbmc Foundation Inc; the most unlike its peers is Mica Inc. 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

30 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. 30 of the 47 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)
2
Early backer (in before they grew)
30/30
Grantees still filing
25/30
Grew since first funded

Where the money sits, by cause and then by grantee

KENYON COLLEGE: $169,000 · EducationKENYON COLLEGEJOHNS HOPKINS UNIVERSITY: $162,500 · EducationJOHNS HOPKINS UNIVERSITYGILMAN SCHOOL INCORPORATED: $40,800 · EducationGILMAN SCHOOL INCORPORATEDCALVERT SCHOOL INCORPORATED: $38,000 · EducationCALVERT SCHOOL INCORPORATEDTHE JEMICY SCHOOL INC: $30,000 · EducationTHE JEMICY SCHOOL INCMaryland Institute: $30,000 · EducationMaryland InstituteTHE WHEELER SCHOOL: $22,000 · EducationCORPORATION OF ST TIMOTHY'S SCHOOL: $18,500 · Education+3 more: $22,000 · EducationCRISTO REY JESUIT HIGH SCHOOL: $150,000 · OtherCRISTO REY JESUIT HIGH SCHOOLTHE TOMORROW FUND: $98,000 · OtherTHE TOMORROW FUNDJOHNS HOPKINS KIMMEL CANCER CENTER: $50,000 · OtherJOHNS HOPKINS KIMMEL CANCER CENTERCristo Rey Jesuit School: $50,000 · OtherCristo Rey Jesuit SchoolSt John's Church: $35,000 · OtherSt John's ChurchUNITED WAY OF CENTRAL MASSACHUSETTS INC: $25,000 · OtherTHE VALLEYS PLANNING COUNCIL INC: $19,500 · Other+19 more: $105,200 · Other+19 moreTHE UNITED WAY OF CENTRAL MARYLAND INC: $95,000 · PhilanthropyCENTER STAGE ASSOCIATES INC: $25,000 · Arts & CultureBALTIMORE MUSEUM OF ART: $8,500 · Arts & CultureMARYLAND ACADEMY OF SCIENCES: $6,000 · Arts & Culture+1 more: $100 · Arts & CultureDana-Farber Cancer Institute Inc: $9,000 · HealthCANCER RESEARCH INSTITUTE INC: $8,000 · HealthGBMC FOUNDATION INC: $7,000 · HealthBROWN UNIVERSITY: $21,000 · Community ImprovementMICA INC: $15,000 · International
Education$532,800Other$532,700Philanthropy$95,000Arts & Culture$39,600Health$24,000Community Improvement$21,000International$15,000

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 budgetKENYON COLLEGE: $169,000 over 8y, 0.0% of budgetJOHNS HOPKINS UNIVERSITY: $162,500 over 3y, 0.0% of budgetTHE TOMORROW FUND: $98,000 over 7y, 1.4% of budgetTHE UNITED WAY OF CENTRAL MARYLAND INC: $95,000 over 4y, 0.1% of budgetGILMAN SCHOOL INCORPORATED: $40,800 over 8y, 0.0% of budgetCALVERT SCHOOL INCORPORATED: $38,000 over 9y, 0.1% of budgetTHE JEMICY SCHOOL INC: $30,000 over 3y, 0.1% of budgetMaryland Institute: $30,000 over 6y, 0.0% of budgetCENTER STAGE ASSOCIATES INC: $25,000 over 9y, 0.1% of budgetUNITED WAY OF CENTRAL MASSACHUSETTS INC: $25,000 over 1y, 0.3% of budgetTHE WHEELER SCHOOL: $22,000 over 9y, 0.0% of budgetBROWN UNIVERSITY: $21,000 over 8y, 0.0% of budgetTHE VALLEYS PLANNING COUNCIL INC: $19,500 over 9y, 0.6% of budgetCORPORATION OF ST TIMOTHY'S SCHOOL: $18,500 over 9y, 0.0% of budgetMICA INC: $15,000 over 3y, 9.9% of budgetGARRISON FOREST SCHOOL INC: $14,000 over 8y, 0.0% of budgetPAUL'S PLACE INC: $13,000 over 6y, 0.1% of budgetAmerican National Red Cross & Its Constituent Chapters and Branches: $10,000 over 5y, 0.0% of budgetDana-Farber Cancer Institute Inc: $9,000 over 9y, 0.0% of budgetBALTIMORE MUSEUM OF ART: $8,500 over 4y, 0.0% of budgetCANCER RESEARCH INSTITUTE INC: $8,000 over 8y, 0.0% of budgetCHESAPEAKE BAY FOUNDATION INC: $6,500 over 7y, 0.0% of budgetMARYLAND ACADEMY OF SCIENCES: $6,000 over 3y, 0.0% of budgetNATIONAL AQUARIUM INC: $4,000 over 2y, 0.0% of budgetST MARK'S SCHOOL OF SOUTHBOROUGH INC: $4,000 over 2y, 0.0% of budgetGETTYSBURG COLLEGE: $4,000 over 2y, 0.0% of budgetLAND PRESERVATION TRUST INC: $3,000 over 3y, 0.1% of budgetASSOCIATED CATHOLIC CHARITIES INC: $2,000 over 1y, 0.0% of budgetCENTER FOR URBAN FAMILIES INC: $1,000 over 2y, 0.0% of budgetBALTIMORE SYMPHONY ORCHESTRA INC: $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 KENYON COLLEGE ↗
  • Who funds JOHNS HOPKINS UNIVERSITY ↗
  • Who funds THE TOMORROW FUND ↗
  • Who funds THE UNITED WAY OF CENTRAL MARYLAND INC ↗
  • Who funds GILMAN SCHOOL INCORPORATED ↗
  • Who funds CALVERT SCHOOL INCORPORATED ↗
  • Who funds THE JEMICY SCHOOL INC ↗
  • Who funds Maryland Institute ↗
  • Who funds CENTER STAGE ASSOCIATES INC ↗
  • Who funds UNITED WAY OF CENTRAL MASSACHUSETTS INC ↗
  • Who funds THE WHEELER SCHOOL ↗
  • Who funds BROWN UNIVERSITY ↗
  • Who funds THE VALLEYS PLANNING COUNCIL INC ↗
  • Who funds CORPORATION OF ST TIMOTHY'S SCHOOL ↗
  • Who funds MICA INC ↗
  • Who funds GARRISON FOREST SCHOOL INC ↗
  • Who funds PAUL'S PLACE INC ↗
  • Who funds American National Red Cross & Its Constituent Chapters and Branches ↗
  • Who funds Dana-Farber Cancer Institute Inc ↗
  • Who funds BALTIMORE MUSEUM OF ART ↗
  • Who funds CANCER RESEARCH INSTITUTE INC ↗
  • Who funds CHESAPEAKE BAY FOUNDATION INC ↗
  • Who funds MARYLAND ACADEMY OF SCIENCES ↗
  • Who funds NATIONAL AQUARIUM INC ↗
  • Who funds ST MARK'S SCHOOL OF SOUTHBOROUGH INC ↗
  • Who funds GETTYSBURG COLLEGE ↗
  • Who funds LAND PRESERVATION TRUST 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.

T Rowe Price Program for Charitable Giving IncMD24.9× affinity11 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: T Rowe Price Program for Charitable Giving Inc · Baltimore Community Foundation Inc · France-Merrick Foundation Inc · Buckingham School Frederick County Md · W P Carey Foundation Inc · The Thomas F & Clementine L Mullan Foundation Inc · The Davis Family Foundation Inc · Herbert Bearman Foundation · The Marion I & Henry J Knott Foundation Inc · The United Way of Central Maryland Inc · Associated Jewish Charities of Baltimore · The Bessemer Giving Fund

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

2024
’20’21’22’23’24’25
no gov · 70%1%3%6%10%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 9%
  • Land Preservation Trust Inc: 64% of income from government
  • Center for Urban Families Inc: 36% of income from government
  • Paul's Place Inc: 29% of income from government
  • Johns Hopkins University: 12% of income from government
  • Baltimore Symphony Orchestra Inc: 11% of income from government
  • Associated Catholic Charities Inc: 10% of income from government
  • Maryland Academy of Sciences: 9% of income from government
  • Center Stage Associates Inc: 7% of income from government
  • Dana-Farber Cancer Institute Inc: 7% of income from government
  • Baltimore Museum of Art: 4% of income from government
  • Chesapeake Bay Foundation Inc: 2% of income from government
  • The United Way of Central Maryland Inc: 2% of income from government
  • National Aquarium Inc: 1% of income from government
no gov moneyreceives it· size = income
7get no government money at all
3report government grants on their 990 we could not trace to a source (not plotted)
1rely 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.

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 47 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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