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Massachusetts · Private foundation

Bierly Boasberg Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$1.5M
Granted FY2025(still arriving)
58
Grants FY2025
65
Organizations funded FY2024
17%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$1,200
Largest grant, FY2025
$1,105,924
Organizations funded a year
48 to 65
FY2018 to FY2024
States reached, FY2025
15
Total assets, FY2025
$8.8M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 17% of the organizations Bierly Boasberg Foundation funded were first-time grantees, receiving 10% of its grant dollars.

New vs renewed · share of each year

In FY2024, 90% of grant dollars renewed an existing relationship; $52k 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
EducationHealthHuman ServicesArts & CultureAnimalsFood & NutritionOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving57$1.5M16%
FY202465$522k17%
FY202358$337k10%
FY202259$362k25%
FY202148$361k15%
FY202058$356k33%
FY201962$307k35%
FY201857$215k49%
95% classified

What it funded, over time

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

Arts & Culture$1.4MEducation$946kInternational$455kHealth$373kAnimals$240kPhilanthropy$235kHuman Services$165kRecreation & Sports$108kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

VT
WA
IL
MI
NY
MA
PA
CT
RI
CA
UT
CO
VA
MD
TN
NC
DC
GA
TX

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 106 grantees
All grantees of Bierly Boasberg Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Nantucket Performing Arts Center Inc$1,105,9241n/a
Buckingham Browne & Nichols School$291,71360%
Save The Children Federation Inc$178,71390%
White Heron Theater Company$165,80746%
Partners in Health a Nonprofit Corporation$160,69480%
Dian Fossey Gorilla Fund International Inc$155,43970%
United Way Of Massachusetts Bay Inc$100,00010%
Camp Holiday Trails$92,50091%
Boys & Girls Clubs of Boston Inc$86,93490%
Duke University$78,33330%
Medecins Sans Frontieres USA Inc$78,00080%
Bain Capital Children's Charity Ltd$75,21151%
Mass General Brigham Incorporated$69,8917n/a
Endeavor Global Inc (F/K/A the Endeavor Initiative Inc)$63,39690%
Voter Registration Project$49,78110%
Greater Boston Food Bank Inc$46,00050%
Cradles to Crayons Inc$44,57590%
Nantucket Dreamland Foundation Inc$35,50070%
Children's Hospital Corporation$35,00070%
Dana-Farber Cancer Institute Inc$30,95040%
Tntp Inc$30,00060%
Nantucket Safe Harbor for Animals Inc$25,00050%
United States Association for UNHCR$20,00020%
The Voter Participation Center$17,58410%
Park School Corporation$17,50010%
Theatre Workshop of Nantucket Inc$17,50031%
Nantucket Conservation Foundation Inc$17,50090%
'Sconset Trust Inc$15,92460%
American University$15,00030%
Chadtough Defeat Dipg Foundation$12,00040%
Michael Mosier Defeat Dipg Foundation$11,05037%
Mass General Brigham Incorporated$10,5009n/a
The American Independent Foundation$10,00010%
United Nations Foundation Inc$10,00010%
Trustees of Boston University$9,00080%
St Jude Children's Research Hospital Inc$8,82070%
The Cultural Landscape Foundation$8,25080%
Beyond Batten Disease Foundation$8,00070%
Humane World for Animals Inc$6,30040%
Pan-Massachusetts Challenge Inc$6,29790%
Project Bread-The Walk for Hunger Inc$5,30080%
American Repertory Theatre Co Inc$5,07520%
Emergency Food Network of Tacoma and Pierce County$5,00010%
International Institute of New England Inc$5,00020%
Robert F Kennedy Center for Justice and Human Rights$5,0001n/a
Comfort Zone Camp Inc$4,80040%
Summits Education$4,50050%
Courageous Parents Networkinc$4,50080%
Horizons Greater Boston Inc$3,50050%
Newton Community Service Centers Inc$3,00060%
Gray Foundation$3,00020%
On the Isle Corporation$2,80070%
Boston Celtics Shamrock Foundation Inc$2,50010%
Tenacity Inc$2,50020%
The Actors' Fund of America$2,50010%
Inky Santa's Toy Drive Inc$2,00021%
Everytown for Gun Safety Support Fund Inc$2,0002n/a
Nantucket Atheneum Inc$2,00080%
Nha Properties Inc$2,00020%
Nantucket Historical Association$1,84520%
Protestant Episcopal Cathedral Foundation of the D of C$1,5096n/a
Cambridge Reproductive Health Consultants$1,50020%
Fairwinds-Nantucket's Counseling Center$1,25030%
National Brain Tumor Society Inc$1,10840%
Italian Home for Children Inc$1,05710%
The Kelly S Brush Foundation Inc$1,05050%
Newton Food Pantry Inc$1,00010%
University of Rhode Island Foundation & Alumni Engagement$1,00010%
Beacon Academy a Montessori High School$1,00020%
Blood Cancer United Inc$1,00010%
Youth Villages Inc$1,00010%
Ellis Early Learning Inc$93620%
The Carroll Center for the Blind Inc$80040%
The Foundation Fighting Blindness Inc$80040%
Nashoba Learning Group Inc$75030%
Squashbusters Inc$50650%
Pasadena Humane$5001n/a
Marine Mammal Alliance Nantucket$50020%
Norfolk Society for the Prevention of Cruelty to Animals Inc$5001n/a
Best Friends Animal Society$5001n/a
New England Aquarium Corporation$50010%
Pine Street Inn Inc$50010%
Boys and Girls Clubs of Chicago$50010%
Dkms$50010%
Steppingstone Foundation Inc$50010%
Project Broadway$50011%
The Cameron and Hayden Lord Foundation$5001n/a
Memorial Sloan-Kettering Cancer Center$45030%
Eyes on Refugees Inc$30010%
Compassionate Care ALS Inc$25810%
Nantucket Police Charitable Association Inc$25023%
Live 4 Evan Inc$20010%
Sandy Hook Promise Foundation$20010%
Positive Coaching Alliance$20020%
Rhode Island Community Food Bank Association$15810%
Smart From the Start Inc$15510%
Dreamfar High School Marathon$15010%
Trevor Project Inc$15010%
Challenged Athletes Inc$15010%
Boston Area Rape Crisis Center Inc$15010%
Joseph Middlemiss Big Heart Foundation Inc$10510%
World Wildlife Fund Inc$10010%
Spark Newton Corporation$10010%
Northwestern University$5210%
Wikimedia Foundation Inc$3010%
Center for Science in the Public Interest$2510%

What it could do for these grantees

Plus 55 recipients with no EIN on record ($940k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Bierly Boasberg Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetBuckingham Browne & Nichols School: $291,713 over 6y, 0.1% of budgetSave The Children Federation Inc: $178,713 over 9y, 0.0% of budgetWhite Heron Theater Company: $165,807 over 4y, 6.4% of budgetPartners in Health a Nonprofit Corporation: $160,694 over 8y, 0.0% of budgetDian Fossey Gorilla Fund International Inc: $155,439 over 7y, 0.3% of budgetUnited Way Of Massachusetts Bay Inc: $100,000 over 1y, 0.2% of budgetCamp Holiday Trails: $92,500 over 9y, 1.3% of budgetBoys & Girls Clubs of Boston Inc: $86,934 over 9y, 0.1% of budgetDuke University: $78,333 over 3y, 0.0% of budgetMedecins Sans Frontieres USA Inc: $78,000 over 8y, 0.0% of budgetBain Capital Children's Charity Ltd: $75,211 over 5y, 1.3% of budgetEndeavor Global Inc (F/K/A the Endeavor Initiative Inc): $63,396 over 9y, 0.1% of budgetVoter Registration Project: $49,781 over 1y, 0.1% of budgetGreater Boston Food Bank Inc: $46,000 over 5y, 0.0% of budgetCradles to Crayons Inc: $44,575 over 9y, 0.0% of budgetNantucket Dreamland Foundation Inc: $35,500 over 7y, 0.3% of budgetChildren's Hospital Corporation: $35,000 over 7y, 0.0% of budgetDana-Farber Cancer Institute Inc: $30,950 over 4y, 0.0% of budgetTntp Inc: $30,000 over 6y, 0.0% of budgetNantucket Safe Harbor for Animals Inc: $25,000 over 5y, 0.2% of budgetUnited States Association for UNHCR: $20,000 over 2y, 0.0% of budgetThe Voter Participation Center: $17,584 over 1y, 0.0% of budgetPark School Corporation: $17,500 over 1y, 0.1% of budgetTheatre Workshop of Nantucket Inc: $17,500 over 3y, 0.9% of budgetNantucket Conservation Foundation Inc: $17,500 over 9y, 0.0% of budget'Sconset Trust Inc: $15,924 over 6y, 0.1% of budgetAmerican University: $15,000 over 3y, 0.0% of budgetChadtough Defeat Dipg Foundation: $12,000 over 4y, 0.1% of budgetMichael Mosier Defeat Dipg Foundation: $11,050 over 3y, 7.0% of budgetThe American Independent Foundation: $10,000 over 1y, 0.0% of budgetUnited Nations Foundation Inc: $10,000 over 1y, 0.0% of budgetTrustees of Boston University: $9,000 over 8y, 0.0% of budgetSt Jude Children's Research Hospital Inc: $8,820 over 7y, 0.0% of budgetThe Cultural Landscape Foundation: $8,250 over 8y, 0.1% of budgetBeyond Batten Disease Foundation: $8,000 over 7y, 0.3% of budgetHumane World for Animals Inc: $6,300 over 4y, 0.0% of budgetPan-Massachusetts Challenge Inc: $6,297 over 9y, 0.0% of budgetProject Bread-The Walk for Hunger Inc: $5,300 over 8y, 0.0% of budgetAmerican Repertory Theatre Co Inc: $5,075 over 2y, 0.0% of budgetEmergency Food Network of Tacoma and Pierce County: $5,000 over 1y, 0.0% of budgetInternational Institute of New England Inc: $5,000 over 2y, 0.1% of budgetComfort Zone Camp Inc: $4,800 over 4y, 0.1% of budgetSummits Education: $4,500 over 5y, 0.1% of budgetCourageous Parents Networkinc: $4,500 over 8y, 0.1% of budgetHorizons Greater Boston Inc: $3,500 over 5y, 0.2% of budgetNewton Community Service Centers Inc: $3,000 over 6y, 0.0% of budgetGray Foundation: $3,000 over 2y, 0.0% of budgetOn the Isle Corporation: $2,800 over 7y, 0.4% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 96.

Nonprofits that may fit its grantmaking

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 IncMA28.5× affinity13 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Combined Jewish Philanthropies of Greater Boston Inc · Boston Foundation Inc · Community Foundation for Nantucket Inc · GivenGain Foundation USA · Eastern Bank Foundation · Cambridge Savings Charitable Foundation Inc · Rockland Trust Charitable Foundation Inc · Nantucket Golf Club Foundation Inc · Mass General Brigham Incorporated & Affiliates Group Return · The George & Marie Chabot Charitable Foundation · The Hamilton Company Charitable Foundation · Richard K Lubin 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.

Compare Bierly Boasberg Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Bierly Boasberg Foundation?

Find your warmest path to Bierly Boasberg 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.

About Bierly Boasberg Foundation

How much does Bierly Boasberg Foundation give?
Bierly Boasberg Foundation reported 58 grants totaling $1,526,403 in its FY2025 IRS filing. It funded between 48 and 65 organizations a year over FY2018 to FY2024.
What does Bierly Boasberg Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Arts & Culture (32%), Education (22%), International (10%).
Who are Bierly Boasberg Foundation's largest grantees?
By total granted over FY2017 to FY2025: Nantucket Performing Arts Center Inc ($1.1M), Buckingham Browne & Nichols School ($292k), Save The Children Federation Inc ($179k).
Does Bierly Boasberg Foundation fund new organizations?
In FY2024, 17% of the organizations it funded were first-time grantees.
Does Bierly Boasberg Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Bierly Boasberg Foundation?
Its strongest co-funders, measured against what their size predicts, include Combined Jewish Philanthropies of Greater Boston Inc, Boston Foundation Inc, Community Foundation for Nantucket Inc.
Where is Bierly Boasberg Foundation based?
Bierly Boasberg Foundation is based in MA.

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 169 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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