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The Jack and Dorothy Byrne Foundation Inc at a glance

· Private foundation

The Jack and Dorothy Byrne Foundation Inc

Its FY2025 filing reports that it accepted unsolicited grant applications.

$12M
Granted FY2024still arriving
172
Grants FY2024still arriving
8
States reached
$300k
Largest
01What it fundsRead
02Its granteesRead
03Its fieldRead
04Through PlinthRead
01What it funds
0197% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Health$2.9MEducation$1.5MArts & Culture$991kRecreation & Sports$874kHuman Services$805kYouth Development$347kEnvironment$246kCommunity Improvement$207kOther$0
02FY2024 · 172 grants

Where the money goes

Grants by size, and the largest recipients.

How this is measured
The 172 grants below total $3,167,600, the rows itemized in this filing. The $12,046,100 headline is the total grant expense on the return; the other $8,878,500 is giving the schedule does not break out (grants under the $5,000 itemization floor, grants to individuals, grants on other schedules). Every figure below describes the itemized rows only.

By grant size · FY2024

  • Under $10k79 grants · $290k
  • $10k–50k75 grants · $1.4M
  • $50k–250k17 grants · $1.2M
  • $250k+1 grant · $300k
$10,000
Median grant
8
States reached
$7.8M
Total assets

Anchored by a single position: about 97% of reported assets are held in Berkshire Hathaway A.

Largest grants
RecipientAmount
Dartmouth Health Children's (CHaD)$300,000
Catholic Medical Center$100,000
Colby-Sawyer College$100,000
American Society for Reproductive Immunology - Geisel School of Medicine$100,000
Dartmouth Health Palliative (Formerly named Dartmouth-Hitchcock Palliative)$100,000
Family Place$75,000
American Cancer Society - New Hampshire/Northeast Region$75,000
American Heart Association - Manchester, New Hampshire$75,000
Carter Community Building Associati$75,000
Headrest$75,000
Grafton County Senior Citizens Cour$75,000
Aloha Foundation$65,000
Gifford Health Care$50,000
Aquifer$50,000
Gifford Health Care$50,000
02Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

27%of every dollar goes to organizations it has funded before.
$6.3M · 113 repeat orgs$17M to everyone else

113 repeat relationships: 90 still active in FY2024, 23 since wound down; 49 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

113
78

Total granted

$6.3M
$16M

Median revenue growth · since first grant

+10%
+17%

Still filing today

42%
33%

New vs renewed · share of each year

In FY2024, 65% of grant dollars renewed an existing relationship; $1.1M went to new ones.

50%100%’20’22’23’24
RenewedFirst-time

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

’20’22’23’24
Arts & CultureHealthEducationRecreation & SportsHuman ServicesYouth DevelopmentOther
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

  • TF
    THE FAMILY PLACE INC
    2× · 2022–2024 · $150k · revenue +8%
  • DH
    DAVID'S HOUSE INC
    3× · 2022–2024 · $125k · revenue +126%
  • CC
    CITY CENTER BALLET INC
    3× · 2022–2024 · $80k · revenue +10% · 37% of their budget

Funded once

  • SS
    SEE STATMENT 10
    one grant, 2020 · $15M
  • GC
    Grafton County Senior Citizens Council Inc
    one grant, 2022 · $165k · revenue +1%
  • FO
    Friend of Oak Hill
    one grant, 2022 · $100k
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.

03Its 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
Southern Vermont Arts Center Inc Po Box 617

As one of New Englands leading visual and performing arts institutions, SVAC's mission is to promote and nurture the arts.

Arts & Culture
2
Champlain Valley Physicians Hospital Medical Center

Cvph medical center's mission is to provide quality health care for the north country region in upstate new york.

Health
3
North Country Center for the Arts Inc

A premier center for the arts in the white mountain area of new hampshire

Arts & Culture
4
Vermont Public Co

Vermont public informs, educates, and entertains through public service journalism and enlightening content rooted in vermont. our storytelling enriches lives and fosters community connection and understanding.

Arts & Culture
5
Mountain Village Charter School

Mountain Village is a public Nature-based, Montessori school, engaging students in experiences that integrate natural environments with the Montessori curriculum, igniting achievement in academic, social-emotional and physical development.

Education
6
Northeast Kingdom Development Corporation

Fostering, encouraging and assisting the physical location of business enterprises within the States of Vermont and New Hampshire, and having its principal purpose be industrial and economic development of one or more political…

Employment
7
Addison County Chamber of Commerce Inc

The Addison County Chamber of Commerce mission is to enhance the economic vitality of Addison County.

—
8
Central Vermont Medical Center Inc

Cvmc works collaboratively to meet the needs and improve the health of the residents of central vermont.

Health
9
The Catamount Institute

Catamount Institute is dedicated to connecting kids to the outdoors through environmental education and outdoor adventures.

Human Services
10
Castleton Free Library

The Castleton Free Library serves as a welcoming center for our community and a gateway to the world of information and imagination. We provide free access to materials and ideas through robust collection development, cultural and creative…

Education
11
Central Vermont Chamber of Commerce Inc

Promote business opportunities

—
12
Chittenden County Senior Citizens Alliance Inc

Center provides a supportive gathering place for community members over the age of 50 with free & donation based programs. These programs promote social, physical & emotional wellbeing

Community Improvement
How this is measured
The grantee most central to the portfolio’s shape is Boys & Girls Clubs of Central and Northern Nh Inc; the most unlike its peers is Haverhill Library Association. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
03the grantee network

95 grantees tracked through their own filings, 2017–2026.

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 2026, not grant rows in a single year, so this will not match the grant count on the cover. 95 of the 241 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.

6
Load-bearing (≥25% of a budget)
14
Early backer (in before they grew)
91/95
Grantees still filing
58/95
Grew since first funded

Where the money sits, by cause and then by grantee

SEE STATMENT 10: $15,025,550 · OtherSEE STATMENT 10+143 more: $5,192,720 · Other+143 moreAlice Peck Day Memorial Hospital: $300,000 · HealthCatholic Medical Center: $200,000 · HealthDAVID'S HOUSE INC: $125,000 · HealthHeadrest Inc: $125,000 · HealthGifford Health Care Inc: $100,000 · HealthGood Neighbor Health Clinic Inc: $75,000 · HealthDayspring Pregnancy Care Center: $67,000 · HealthGifford Medical Center Inc: $50,000 · Health+6 more: $91,000 · HealthColby-Sawyer College: $500,000 · EducationCHILDREN'S LITERACY FOUNDATION: $145,000 · EducationAQUIFER INC: $50,000 · EducationTHE CENTER FOR CARTOON STUDIES: $48,000 · EducationCareers CLiC: $30,000 · EducationCENTRAL VERMONT ADULT BASIC EDUCATION INC: $30,000 · Education+6 more: $70,400 · EducationCommunity Gallery Inc: $165,000 · Arts & CultureCITY CENTER BALLET INC: $80,000 · Arts & CultureCLAREMONT OPERA HOUSE INC: $80,000 · Arts & CultureCHANDLER CENTER FOR THE ARTS INC: $75,000 · Arts & CultureCentral Vermont Chamber Music Festival: $30,000 · Arts & CultureCLASSICOPIA: $25,000 · Arts & CultureCHILDREN'S MUSEUM OF NEW HAMPSHIRE: $20,000 · Arts & Culture+6 more: $63,000 · Arts & CultureTHE ALOHA FOUNDATION INC: $165,000 · Recreation & SportsFRIENDS OF OAKHILL: $90,000 · Recreation & SportsFRIENDS OF HANOVER CREW: $90,000 · Recreation & SportsFRIENDS OF LEBANON RECREATION ARTS & PARKS: $57,500 · Recreation & SportsCARTER COMMUNITY BUILDING ASSOCIATION: $50,000 · Recreation & SportsNH YOUTH LEADERSHIP FOUNDATION INC: $45,000 · Recreation & SportsAscutney Trails Association Inc: $20,000 · Recreation & SportsCenter for the Arts Lake Sunapee Region: $20,000 · Recreation & SportsGrafton County Senior Citizens Council Inc: $165,000 · Human ServicesBRIDGEWATER AREA COMMUNITY FOUNDATION INC: $50,000 · Human ServicesCrotched Mountain Foundation: $20,000 · Human ServicesGOOD BEGINNINGS OF CENTRAL VERMONT: $10,000 · Human ServicesENHANCED LIVING INC: $10,000 · Human ServicesBradford Teen Center Inc: $72,000 · Youth DevelopmentGIRL SCOUTS OF THE GREEN AND WHITE MTNS: $33,000 · Youth DevelopmentCHANGE THE WORLD KIDS INC: $18,000 · Youth DevelopmentBOYS & GIRLS CLUBS OF CENTRAL AND NORTHERN NH INC: $12,500 · Youth Development
Other$20,218,270Health$1,133,000Education$873,400Arts & Culture$538,000Recreation & Sports$537,500Human Services$255,000Youth Development$135,500

Showing the 200 largest grantees by grant value.

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 budgetColby-Sawyer College: $500,000 over 3y, 0.3% of budgetAlice Peck Day Memorial Hospital: $300,000 over 2y, 0.2% of budgetCatholic Medical Center: $200,000 over 2y, 0.0% of budgetCommunity Gallery Inc: $165,000 over 3y, 5.9% of budgetGrafton County Senior Citizens Council Inc: $165,000 over 1y, 4.0% of budgetTHE ALOHA FOUNDATION INC: $165,000 over 3y, 0.5% of budgetTHE FAMILY PLACE INC: $150,000 over 2y, 2.4% of budgetCHILDREN'S LITERACY FOUNDATION: $145,000 over 2y, 5.9% of budgetDAVID'S HOUSE INC: $125,000 over 3y, 3.8% of budgetHeadrest Inc: $125,000 over 2y, 3.3% of budgetGifford Health Care Inc: $100,000 over 1y, 0.7% of budgetFRIENDS OF OAKHILL: $90,000 over 2y, 3.1% of budgetFRIENDS OF HANOVER CREW: $90,000 over 2y, 33% of budgetCITY CENTER BALLET INC: $80,000 over 3y, 37% of budgetCLAREMONT OPERA HOUSE INC: $80,000 over 2y, 14% of budgetCHANDLER CENTER FOR THE ARTS INC: $75,000 over 3y, 4.9% of budgetGood Neighbor Health Clinic Inc: $75,000 over 3y, 3.8% of budgetBradford Teen Center Inc: $72,000 over 3y, 19% of budgetCOMMUNITYCARE OF LYME: $70,000 over 3y, 13% of budgetDayspring Pregnancy Care Center: $67,000 over 3y, 6.3% of budgetFRIENDS OF LEBANON RECREATION ARTS & PARKS: $57,500 over 3y, 34% of budgetCARTER COMMUNITY BUILDING ASSOCIATION: $50,000 over 1y, 2.6% of budgetBRIDGEWATER AREA COMMUNITY FOUNDATION INC: $50,000 over 1y, 14% of budgetGifford Medical Center Inc: $50,000 over 1y, 0.1% of budgetAQUIFER INC: $50,000 over 1y, 0.6% of budgetTHE CENTER FOR CARTOON STUDIES: $48,000 over 3y, 2.0% of budgetCOMMITTEE ON TEMPORARY SHELTER INC: $45,000 over 2y, 0.5% of budgetNH YOUTH LEADERSHIP FOUNDATION INC: $45,000 over 3y, 8.8% of budgetHartford Area Chamber of Commerce: $35,000 over 2y, 10% of budgetGIRL SCOUTS OF THE GREEN AND WHITE MTNS: $33,000 over 3y, 0.4% of budgetCENTER FOR NEW BEGINNINGS: $31,000 over 3y, 3.9% of budgetHARTFORD COMMUNITY COALITION INC: $31,000 over 2y, 9.7% of budgetBOYS & GIRLS CLUB OF GREATER SALT LAKE: $30,000 over 2y, 0.2% of budgetCEDAR CIRCLE FARM AND EDUCATION CENTER INC: $30,000 over 1y, 1.3% of budgetCareers CLiC: $30,000 over 2y, 9.3% of budgetCENTRAL VERMONT ADULT BASIC EDUCATION INC: $30,000 over 2y, 1.0% of budgetCentral Vermont Chamber Music Festival: $30,000 over 3y, 24% of budgetCITY YEAR INC: $30,000 over 2y, 0.0% of budgetCENTER FOR TRANSFORMATIONAL PRACTICE - INC: $25,000 over 1y, 57% of budgetHARTFORD COMMUNITY RESORATIVE JUSTICE CENTER INC: $25,000 over 1y, 4.6% of budgetHampshire Nursery School Inc: $25,000 over 1y, 14% of budgetGIRLS INCORPORATED OF NEW HAMPSHIRE: $20,000 over 2y, 0.4% of budgetCrotched Mountain Foundation: $20,000 over 3y, 0.5% of budgetGOVERNOR'S INSTITUTES OF VERMONT: $20,000 over 1y, 0.7% of budgetCenter for the Arts Lake Sunapee Region: $20,000 over 2y, 8.2% of budgetCARDIGAN MOUNTAIN SCHOOL: $20,000 over 1y, 0.1% of budgetCHILDREN'S MUSEUM OF NEW HAMPSHIRE: $20,000 over 3y, 0.7% of budgetTHE BREAST CANCER RESEARCH FOUNDATION INC: $18,500 over 3y, 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 Colby-Sawyer College ↗
  • Who funds Alice Peck Day Memorial Hospital ↗
  • Who funds Catholic Medical Center ↗
  • Who funds Community Gallery Inc ↗
  • Who funds Grafton County Senior Citizens Council Inc ↗
  • Who funds THE ALOHA FOUNDATION INC ↗
  • Who funds THE FAMILY PLACE INC ↗
  • Who funds CHILDREN'S LITERACY FOUNDATION ↗
  • Who funds DAVID'S HOUSE INC ↗
  • Who funds Headrest Inc ↗
  • Who funds Gifford Health Care Inc ↗
  • Who funds FRIENDS OF OAKHILL ↗
  • Who funds FRIENDS OF HANOVER CREW ↗
  • Who funds HANOVER ROTARY CHARITIES INC ↗
  • Who funds CITY CENTER BALLET INC ↗
  • Who funds CLAREMONT OPERA HOUSE INC ↗
  • Who funds CHANDLER CENTER FOR THE ARTS INC ↗
  • Who funds Good Neighbor Health Clinic Inc ↗
  • Who funds Bradford Teen Center Inc ↗
  • Who funds COMMUNITYCARE OF LYME ↗
  • Who funds Dayspring Pregnancy Care Center ↗

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.

New Hampshire Charita…The Vermont Community…The Couch Family Foun…Mascoma Bank Foundati…Cogswell Benevolent T…Ben & Jerry's Foundat…National Life Group C…Agnes M Lindsay TrustVermont Council on th…Emily Landecker Found…Granite United WayClaremont Savings Ban…
New Hampshire Charitable FoundationNH69.1× affinity43 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: New Hampshire Charitable Foundation · The Vermont Community Foundation · The Couch Family Foundation · Mascoma Bank Foundation · Cogswell Benevolent Trust · Ben & Jerry's Foundation Inc · National Life Group Charitable Foundation Inc · Agnes M Lindsay Trust · Vermont Council on the Arts Inc · Emily Landecker Foundation Inc · Granite United Way · Claremont Savings Bank 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.
04Through Plinth

Warm introductions · Powered by PlinthPlus

How do I get to The Jack and Dorothy Byrne Foundation Inc?

Find your warmest path to The Jack and Dorothy Byrne Foundation Inc 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 241 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.

Possibly out of date. A more recent filing (FY2025) is on record and reports $13M of grant expense with no grantee named in the published copy. A private foundation itemizes every grant it makes, so a return carrying none has filed its list as an attachment that the public copy does not include. The figures above are therefore from FY2024, the most recent year this funder’s grantee list reached the public record.

Source object · view filing

Play a game based on Jack and Dorothy Byrne’s filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home