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Plinth

· Private foundation

Leerink Family Foundation Inc

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.

$200k
Granted FY2025still arriving
14
Grants FY2025still arriving
4
States reached
$50k
Largest
01What you fund
0198% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Education$511kYouth Development$470kCommunity Improvement$226kHealth$185kHuman Services$47kRecreation & Sports$27kHousing & Shelter$24kScience & Tech$18kOther$0
02FY2025 · 14 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k6 grants · $22k
  • $10k–50k6 grants · $78k
  • $50k–250k2 grants · $100k
$10,000
Median grant
4
States reached
$2.5M
Total assets
Largest grants
RecipientAmount
BBBS OF EASTERN BOSTON$50,000
PARK SCHOOL$50,000
RIVERS SCHOOL$25,000
TEAM IMPACT$12,500
WALTHAM BOYS AND GIRLS CLUB$10,175
PARK SCHOOL$10,000
PARK SCHOOL$10,000
DION FOUNDATION FOR CHILDREN$10,000
TEAM NEW ENGLAND$5,000
YOUTH VILLAGES$5,000
PRESIDENT AND FELLOWS OF HARVARD$5,000
LIFE SCIENCE CARES$3,500
GLOBAL IMPACT$2,500
HARLEM LACROSSE$1,000
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 (FY17–25, $15k) land where the poverty rate runs at 11%, against an area that typically sits at 9%. 33% of those dollars go to grantees based in above-average-need neighborhoods. Your grants skew toward lower-need ZIPs.

area typical 9%SOUTHSHORE YMCA: $5k → 8%YOUTH VILLAGES: $5k → 17%SOUTHSHORE YMCA: $5k → 8%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

VT
NY
MA
RI
CA
VA
MD
TN
DC
GA
TX

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 edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

65%of every dollar goes to organizations you’ve funded before.
$976k · 21 repeat orgs$537k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +79% since the first grant, against +33% for the ones you funded once.

21 repeat relationships — 4 still active in FY2025, 17 since wound down; 6 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

21
36

Total granted

$976k
$436k

Median revenue growth · since first grant

+79%
+33%

Still filing today

57%
50%

New vs renewed · share of each year

In FY2025, 47% of grant dollars renewed an existing relationship; $101k 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
HealthRecreation & SportsEducationHousing & ShelterHuman ServicesPhilanthropyOther

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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

  • PS
    PARK SCHOOL CORPORATION
    4× · 2021–2025 · $345k · revenue +8%
  • TI
    TEAM IMPACT INC
    4× · 2022–2025 · $53k · revenue +26%
  • CH
    CAMP HARBOR VIEW FOUNDATION INC
    2× · 2023–2024 · $35k · revenue +101%

Funded once

  • BO
    BBBS OF MASS BAY
    one grant, 2024 · $100k
  • BO
    BBBS OF MASSACHUSETTS BAY
    one grant, 2017 · $76k
  • TP
    THE PARK SCHOOL - ANNUAL FUND
    one grant, 2023 · $50k

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your 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
Boston Architectural College

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

2
Children's Hospital Corporation

Provider of pediatric healthcare, education, research & community service

Health
3
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
4
Northeast College of Health Sciences

Northeast college of health sciences (the college) is committed to academic excellence, leadership, and professional best practices in the health sciences.

Education
5
Trustees of Boston University

Organization's mission: boston university is an international, comprehensive, private research university, committed to educating students to be reflective, resourceful individuals ready to live, adapt, and lead in an interconnected world.…

6
Sanford Burnham Prebys Medical Discovery Institute

Sanford burnham prebys medical discovery institute's mission is to advance the biomedical sciences by cultivating the next generation of scientific leaders, providing meaningful opportunities for researchers of all backgrounds to learn,…

Health
7
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.

8
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
9
Whitehead Institute for Biomedical Research

Whitehead institute forges new frontiers in science, uncovering insights today that unlock the potential of tomorrow. our advances in genetics and genomics are now enabling us to tackle the complexities of life with unprecedented depth and…

Health
10
Buckingham Browne & Nichols School

Bb&n, an all gender day school in cambridge, massachusetts, was established in 1974 by the merger of two independent schools, the buckingham school and the browne & nichols school, founded respectively in 1889 and 1883. located on multiple…

Education
11
Wentworth Institute of Technology Inc

Wentworth institute of technology is a nationally recognized private coeducational and residential university of higher education with a mission to empower, inspire and innovate through experiential learning with a core purpose of career…

Education
12
Massachusetts Higher Education Assistance Corporation

The organization's primary exempt purpose is to provide access to and conduct activities in furtherance of higher education.

For reference, the grantee most central to the portfolio’s shape is Team Impact Inc and the most unlike its peers is Bridge Over Troubled Waters Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.

Your grantees are a median of 44 years old; the field is 17. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number19%0%<5yr14%9%5–10yr21%18%10–20yr20%12%20–35yr13%24%35–55yr13%38%55yr+
THE FIELDby orgYOUR MONEYby value19%0%<5yr14%7%5–10yr21%18%10–20yr20%5%20–35yr13%3%35–55yr13%67%55yr+

The field is 19% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close 0.0% lost their exemption, against 11% of the field you don’t fund.

orgs you fund
0.0%0/37
the rest of the field
11%
5,370/48,734

Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.

04the grantee network

37 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. 37 of the 65 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

0
Load-bearing (≥25% of a budget)
8
Early backer (in before they grew)
36/37
Grantees still filing
26/37
Grew since you first funded

Where your money sits — by cause, then by grantee

BIG BROTHERS BIG SISTERS — $267,000 · OtherBIG BROTHERS BIG SISTERSBBBS OF MASS BAY — $100,000 · OtherBBBS OF MASS BAYBBBS OF MASSACHUSETTS BAY — $76,260 · OtherBBBS OF MASSACHUSETTS BAYTHE PARK SCHOOOL ANNUAL FUND — $70,000 · OtherTHE PARK SCHOOOL ANNUAL FUNDTHE PARK SCHOOL - ANNUAL FUND — $50,000 · OtherBBBS OF EASTERN BOSTON — $50,000 · OtherBIG BROTHERS BIG SISTERS OF EASTERN MASSACHUSETTS INC — $50,000 · OtherTHE PARK SCHOOL - SPARK — $35,000 · Other+39 more — $249,174 · Other+39 morePARK SCHOOL CORPORATION — $345,000 · EducationPARK SCHOOL CORPORATIONPresident and Fellows of Harvard College — $30,000 · EducationPresident and Fellows of Har…+2 more — $7,500 · EducationLIFE SCIENCE CARES INC — $30,600 · HealthTHE TERMEER INSTITUTE INC — $30,000 · HealthCYSTIC FIBROSIS FOUNDATION — $10,000 · HealthBRIDGE OVER TROUBLED WATERS INC — $5,000 · HealthAMERICAN CANCER SOCIETY INC — $5,000 · Health+2 more — $1,500 · HealthTEAM IMPACT INC — $52,500 · PhilanthropyAMERICAN FRIENDS OF THE NORMAN FOSTER FOUNDATION C/O RUCHELMAN LLP — $2,500 · PhilanthropyCAMP HARBOR VIEW FOUNDATION INC — $35,000 · Youth DevelopmentTeam New England Youth Academy Inc — $13,000 · Youth DevelopmentCHILDREN'S TRUST INC — $15,500 · Crime & LegalSouth Shore Young Men's Christian Association — $10,000 · Human ServicesYOUTH VILLAGES INC — $5,000 · Human Services
Other$947,434Education$382,500Health$82,100Philanthropy$55,000Youth Development$48,000Crime & Legal$15,500Human Services$15,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetPARK SCHOOL CORPORATION — $345,000 over 4y, 0.4% of budgetTEAM IMPACT INC — $52,500 over 4y, 0.3% of budgetBIG BROTHERS BIG SISTERS OF EASTERN MASSACHUSETTS INC — $50,000 over 1y, 0.8% of budgetCAMP HARBOR VIEW FOUNDATION INC — $35,000 over 2y, 0.1% of budgetLIFE SCIENCE CARES INC — $30,600 over 6y, 0.5% of budgetTHE TERMEER INSTITUTE INC — $30,000 over 2y, 2.9% of budgetPresident and Fellows of Harvard College — $30,000 over 3y, 0.0% of budgetTHE RIVERS SCHOOL CORPORATION — $25,000 over 1y, 0.1% of budgetCHILDREN'S TRUST INC — $15,500 over 5y, 0.5% of budgetLAWRENCE COMMUNITYWORKS INC — $15,000 over 2y, 0.2% of budgetTeam New England Youth Academy Inc — $13,000 over 2y, 2.8% of budgetWALTHAM BOYS & GIRLS CLUB INC — $10,175 over 1y, 0.2% of budgetSouth Shore Young Men's Christian Association — $10,000 over 2y, 0.0% of budgetCYSTIC FIBROSIS FOUNDATION — $10,000 over 5y, 0.0% of budgetINTERNATIONAL TENNIS HALL OF FAME INCORPORATED — $8,500 over 3y, 0.1% of budgetKING SOLOMON HUMANITARIAN FOUNDATION FOR HANDICAPPED CHILDREN INC — $7,000 over 2y, 0.4% of budgetBRIDGE OVER TROUBLED WATERS INC — $5,000 over 1y, 0.0% of budgetBROOKLINE FOOD PANTRY INC — $5,000 over 2y, 0.4% of budgetFRIENDS OF 2LIFE COMMUNITIES INC — $5,000 over 1y, 0.1% of budgetYOUTH VILLAGES INC — $5,000 over 1y, 0.0% of budgetAMERICAN CANCER SOCIETY INC — $5,000 over 1y, 0.0% of budgetALEXANDER TWILIGHT ACADEMY INC — $5,000 over 1y, 0.2% of budgetTHE KELLY S BRUSH FOUNDATION INC — $2,849 over 1y, 0.1% of budgetGlobal Impact — $2,500 over 1y, 0.0% of budgetCATHOLIC SCHOOLS FOUNDATION INC — $2,500 over 1y, 0.0% of budgetCOURAGEOUS SAILING CENTER FOR YOUTH INC — $2,500 over 1y, 0.1% of budgetCROSSROADS FOR KIDS INC — $2,500 over 1y, 0.1% of budgetHEADING HOME INC — $2,500 over 1y, 0.0% of budgetAMERICAN FRIENDS OF THE NORMAN FOSTER FOUNDATION C/O RUCHELMAN LLP — $2,500 over 1y, 0.9% of budgetPAN-MASSACHUSETTS CHALLENGE INC — $2,500 over 1y, 0.0% of budgetMUSEUM OF FINE ARTS — $2,250 over 1y, 0.0% of budgetNEW YORK RESTORATION PROJECT — $1,500 over 1y, 0.0% of budget2LIFE COMMUNITIES INC — $1,000 over 1y, 0.0% of budgetJOSLIN DIABETES CENTER INC — $1,000 over 1y, 0.0% of budgetAmerican Heart Association Inc — $500 over 1y, 0.0% 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.

Boston Foundation IncMA25.2× affinity11 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Boston Foundation Inc · Combined Jewish Philanthropies of Greater Boston Inc · American Tower Corporation Foundation Inc · Eastern Bank Foundation · United Way Of Massachusetts Bay Inc · Bushrod H Campbell & Adah F Hall Charity Fund · Community Foundation for MetroWest Inc · Point32health Foundation Inc · Rockland Trust Charitable Foundation Inc · Cummings Foundation Grants Inc (Fka Oneworld Boston Inc) · Arbella Insurance Foundation · Arthur J Gallagher 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 Leerink Family Foundation Inc 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, a single department, or state — and drag the year to watch it move.

2024
202122232425
no gov · 90%0%1%3%5%your share of their income ↑0%15%30%45%60%share of the org’s income from governmentmedian 8%
  • Joslin Diabetes Center Inc35% of income from government
  • Bridge Over Troubled Waters Inc32% of income from government
  • Waltham Boys & Girls Club Inc29% of income from government
  • Heading Home Inc17% of income from government
  • Courageous Sailing Center for Youth Inc10% of income from government
  • Lawrence Communityworks Inc9% of income from government
  • 2LIFE Communities Inc8% of income from government
  • President and Fellows of Harvard College7% of income from government
  • Children's Trust Inc3% of income from government
  • Camp Harbor View Foundation Inc1% of income from government
  • Crossroads for Kids Inc1% of income from government
  • Museum of Fine Arts0% of income from government
  • Pan-Massachusetts Challenge Inc0% of income from government
no gov moneyreceives it· size = income
9get no government money at all
6report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–60%
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 65 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