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· Private foundation

Mellen Charitable Fdn (Fka Tf Fdn)

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.

$36M
Granted FY2024still arriving
17
Grants FY2024still arriving
4
States reached
$25M
Largest
01What it funds
01100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2024.

Philanthropy$28MHealth$11MEmployment$2.7MEducation$2.4MHuman Services$2.0MAnimals$750kHousing & Shelter$750kPublic Safety & Disaster$250kOther$0
02FY2024 · 17 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • $50k–250k2 grants · $400k
  • $250k+15 grants · $35M
$425,000
Median grant
4
States reached
$308M
Total assets
Largest grants
RecipientAmount
JEROME AVENUE FUND CO THE BOSTON FOUNDATION$25,047,906
DANA-FARBER INC$4,060,000
UPSTREAM USA$1,000,000
SOCIAL FINANCE$1,000,000
YEAR UP INC$540,000
FOCUSING PHILANTHROPY$537,000
YOUTH VILLAGES$500,000
MILFORD PUBLIC SCHOOLS$445,500
ST VINCENT'S MEDICAL CENTER$425,000
WALTHAM PUBLIC SCHOOLS$402,750
DUET INC$300,000
TEACH FOR AMERICA - MA$250,000
NEW ENGLAND AQUARIUM$250,000
CEDARS-SINAI MEDICAL CENTER$250,000
HORIZONS FOR HOMELESS CHILDREN$250,000
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 (FY22–24, $2.8M) land where the poverty rate runs at 13%, against an area that typically sits at 11%. 64% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%YOUTH VILLAGES: $500k → 8%YOUTH VILLAGES: $500k → 8%SOCIAL FINANCE: $1.0M → 16%HORIZONS FOR HOMELESS CHILDREN: $250k → 16%HORIZONS FOR HOMELESS CHILDREN: $250k → 16%HORIZONS FOR HOMELESS CHILDREN: $250k → 16%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.
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 10% of Mellen Charitable Fdn (Fka Tf Fdn)’s grant dollars are earmarked for a different county than the recipient’s own address. By recipient address, 92% of the giving stays in MA; by stated purpose, 82%.

Mellen Charitable Fdn (Fka Tf Fdn)lessmore of its giving
Placed by recipient address · 2.3% 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.

93%of every dollar goes to organizations it has funded before.
$44M · 11 repeat orgs$3.4M to everyone else

11 repeat relationships: 11 still active in FY2024, 0 since wound down; 4 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

11
4

Total granted

$44M
$1.3M

Median revenue growth · since first grant

-4%
+37%

Still filing today

91%
50%

New vs renewed · share of each year

In FY2024, 94% of grant dollars renewed an existing relationship; $2.1M went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

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

’21’22’23’24
HealthHuman ServicesEducationPhilanthropyAnimalsEmploymentOther
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

  • FP
    FOCUSING PHILANTHROPY INC
    3× · 2022–2024 · $1.5M · revenue +49%
  • YOUTH VILLAGES INC
    2× · 2023–2024 · $1.0M · revenue +41%
  • HF
    HORIZONS FOR HOMELESS CHILDREN
    3× · 2022–2024 · $750k · revenue +27%

Funded once

  • JEWISH VOCATIONAL SERVICE INCgraduated
    one grant, 2022 · $500k · revenue +37%
  • UNITED STATES FUND FOR UNICEF
    one grant, 2022 · $250k · revenue -21%
  • SB
    SAINT BONIFACE HAITI FOUND
    one grant, 2021 · $250k
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
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.

—
2
University Family Physicians Inc

Engage actively and continuously in medical research, education and training in the practice of medicine in conjunction with the department of family medicine of the indiana university school of medicine and indiana university…

—
3
Central Indiana Corporate Partnership Inc

Central indiana corporate partnership (cicp) is an alliance of indiana's business and research university leaders coming together to foster long-term prosperity for the region. cicp's mission is to transform the economy of indiana in order…

Community Improvement
4
International Aids Vaccine Initiative Inc

A nonprofit scientific research organization that develops vaccines and antibodies for hiv, tuberculosis, and emerging infectious diseases.

International
5
University of Virginia Investment Management Company

The university of virginia investment management company (uvimco) is organized to invest funds on behalf of the rector and visitors of the university of virginia (the university or uva) and university-associated organizations (uaos).

Education
6
University Health Inc

Primary functions are the coordination and delivery of health care resources and services, health care education for the hospital service area, long range analysis of health care needs and development of programs, and arranging for…

—
7
Ucsf Foundation Investment Company

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

Education
8
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
9
Highmark Health

As the parent entity of a blended health organization, highmark health seeks to improve the health and well-being of the people and communities it serves by providing affordable, accessible and high-quality healthcare.

Health
10
American Gas Association

American gas association's (the association) mission is to develop and advocate for informed, innovative, and durable policy that fulfills our nation's energy needs, environmental aspirations and economic potential. we are committed to…

—
11
Union Health System

To serve our communities by provding innovative and compassionate healthcare.

Health
12
America's Health Insurance Plans Inc

Ahip is the national trade association representing the health insurance industry. ahip's members provide health care coverage, services and solutions to more than 200 million americans. we are committed to market-based solutions and…

Membership Benefit
How this is measured
The grantee most central to the portfolio’s shape is Teach for America Inc; the most unlike its peers is Cedars-Sinai Medical Center. 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

14 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. 14 of the 19 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)
1
Early backer (in before they grew)
14/14
Grantees still filing
6/14
Grew since first funded

Where the money sits, by cause and then by grantee

JEROME AVENUE FUND CO THE BOSTON FOUNDATION: $26,037,906 · OtherJEROME AVENUE FUND CO THE BOSTON FOUNDATIONDANA-FARBER INC: $5,650,000 · OtherDANA-FARBER INC+6 more: $1,898,250 · Other+6 moreUpstream USA Inc: $3,000,000 · HealthUpstream USA…St Vincent's Medical Center: $1,525,000 · HealthSt Vincent's…CEDARS-SINAI MEDICAL CENTER: $750,000 · HealthCEDARS-SINAI…YEAR UP INC: $2,160,000 · EducationTeach for America Inc: $1,300,000 · EducationSocial Finance Inc: $1,000,000 · Human ServicesYOUTH VILLAGES INC: $1,000,000 · Human ServicesHORIZONS FOR HOMELESS CHILDREN: $750,000 · Human ServicesFOCUSING PHILANTHROPY INC: $1,537,000 · PhilanthropyNEW ENGLAND AQUARIUM CORPORATION: $750,000 · AnimalsJEWISH VOCATIONAL SERVICE INC: $500,000 · Employment
Other$33,586,156Health$5,275,000Education$3,460,000Human Services$2,750,000Philanthropy$1,537,000Animals$750,000Employment$500,000

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

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetDANA-FARBER INC: $5,650,000 over 4y, 3.4% of budgetUpstream USA Inc: $3,000,000 over 3y, 2.6% of budgetYEAR UP INC: $2,160,000 over 4y, 0.4% of budgetFOCUSING PHILANTHROPY INC: $1,537,000 over 3y, 2.1% of budgetSt Vincent's Medical Center: $1,525,000 over 3y, 8.2% of budgetTeach for America Inc: $1,300,000 over 2y, 0.3% of budgetSocial Finance Inc: $1,000,000 over 1y, 1.3% of budgetYOUTH VILLAGES INC: $1,000,000 over 2y, 0.1% of budgetHORIZONS FOR HOMELESS CHILDREN: $750,000 over 3y, 1.4% of budgetNEW ENGLAND AQUARIUM CORPORATION: $750,000 over 3y, 0.5% of budgetCEDARS-SINAI MEDICAL CENTER: $750,000 over 3y, 0.0% of budgetJEWISH VOCATIONAL SERVICE INC: $500,000 over 1y, 2.5% of budgetDUET INC: $300,000 over 1y, 9.4% of budgetUNITED STATES FUND FOR UNICEF: $250,000 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.

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.

Combined Jewish Philanthropies of Greater Boston IncMA13.4× affinity4 shared granteesties to 2 of 2Hover any node to trace its alignments.Compare side by side →

Open a dossier: Combined Jewish Philanthropies of Greater Boston Inc · Boston Foundation Inc · Fidelity Investments Charitable Gift 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 Mellen Charitable Fdn (Fka Tf Fdn) funds: left to right is the share of its income from government, bottom to top the share from Mellen Charitable Fdn (Fka Tf Fdn). Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 20%1%3%6%10%funder's share of their income ↑0%10%20%30%40%share of the org’s income from government →median 12%
  • Jewish Vocational Service Inc: 39% of income from government
  • Horizons for Homeless Children: 21% of income from government
  • New England Aquarium Corporation: 12% of income from government
  • Social Finance Inc: 12% of income from government
  • Upstream Usa Inc: 4% of income from government
  • Year Up Inc: 0% of income from government
no gov moneyreceives it· size = income
2get no government money at all
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 Mellen Charitable Fdn (Fka Tf Fdn)?

Find your warmest path to Mellen Charitable Fdn (Fka Tf Fdn) 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 19 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

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