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Massachusetts · Private foundation

Trowbridge 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.

$68k
Granted FY2025(still arriving)
1
Grants FY2025
19
Organizations funded FY2024
26%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$67,500
Largest grant, FY2025
$67,500
Organizations funded a year
14 to 19
FY2021 to FY2024
States reached, FY2025
1
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 26% of the organizations Trowbridge Foundation funded were first-time grantees, receiving 15% of its grant dollars.

New vs renewed · share of each year

In FY2024, 85% of grant dollars renewed an existing relationship; $13k went to new ones.

50%100%’22’23’24
RenewedFirst-time

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

’22’23’24
HealthHuman ServicesCrime & LegalArts & CultureFood & NutritionEnvironmentOther
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 arriving1$68k0%
FY202419$85k26%
FY202316$101k19%
FY202219$84k26%
FY202114$64kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2025.

Housing & Shelter$146kRecreation & Sports$68kHealth$67kEnvironment$36kArts & Culture$22kInternational$20kCrime & Legal$15kHuman Services$8kOther$0

Top grantees

Largest recipients by total granted, FY2021 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 23 grantees

What it could do for these grantees

Plus 4 recipients with no EIN on record ($28k), not named here.

Where it is load-bearing

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetHomeworthy: $145,686 over 4y, 1.1% of budgetMid-Coast Recreation Center Inc: $68,000 over 2y, 0.0% of budgetThe Hurricane Island Foundation: $26,000 over 4y, 0.5% of budgetThe Foundation for AIDS Research: $25,000 over 2y, 0.1% of budgetBring Change 2 Mind: $20,000 over 2y, 0.4% of budgetFinding Our Voices: $15,000 over 2y, 6.1% of budgetDocumentary Songwriters: $10,000 over 1y, 12% of budgetHonorhealth Foundation: $10,000 over 1y, 0.0% of budgetMaineHealth Services: $10,000 over 1y, 0.0% of budgetCoastal Mountains Land Trust: $8,500 over 4y, 0.1% of budgetNew Hope for Women Inc: $8,000 over 4y, 0.3% of budgetBay Chamber Concerts Inc: $6,050 over 4y, 0.2% of budgetGulf of Maine Research Institute: $5,000 over 3y, 0.0% of budgetOlympia Snowe Women's Leadership Institute: $4,500 over 3y, 0.2% of budgetThe Owls Head Transportation Museum: $4,000 over 4y, 0.0% of budgetOUT Maine: $2,000 over 4y, 0.1% of budgetMid-Coast Health Net Inc: $1,500 over 3y, 0.1% of budgetPAWS Animal Adoption Center: $1,500 over 4y, 0.1% of budgetGood Shepherd Food Bank: $1,000 over 1y, 0.0% of budgetNatural Resources Council of Maine Inc: $1,000 over 1y, 0.0% of budgetIsland Institute: $500 over 1y, 0.0% of budgetThe Center for Grieving Children: $500 over 1y, 0.0% of budgetParent Program of Mid-Coast Maine: $450 over 2y, 0.0% 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 23.

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.

Maine Community Foundation IncME28.6× affinity12 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Maine Community Foundation Inc · Fisher Charitable Foundation · Reny Charitable Foundation · Bangor Savings Bank Foundation · Arthur K Watson Trust Xxxxx5001 · Otter Island Foundation · Middlecott Foundation · Onion Foundation · Elmina B Sewall Foundation · Davis Family Foundation · Cara Charitable Foundation Inc · Messler 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 Trowbridge Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Trowbridge Foundation?

Find your warmest path to Trowbridge 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 Trowbridge Foundation

How much does Trowbridge Foundation give?
Trowbridge Foundation reported 1 grants totaling $67,500 in its FY2025 IRS filing. It funded between 14 and 19 organizations a year over FY2021 to FY2024.
What does Trowbridge Foundation fund?
By grant dollars over FY2021 to FY2025, its largest causes are Housing & Shelter (36%), Recreation & Sports (17%), Health (17%).
Who are Trowbridge Foundation's largest grantees?
By total granted over FY2021 to FY2025: Homeworthy ($146k), Mid-Coast Recreation Center Inc ($68k), The Hurricane Island Foundation ($26k).
Does Trowbridge Foundation fund new organizations?
In FY2024, 26% of the organizations it funded were first-time grantees.
Does Trowbridge Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as Trowbridge Foundation?
Its strongest co-funders, measured against what their size predicts, include Maine Community Foundation Inc, Fisher Charitable Foundation, Reny Charitable Foundation.
Where is Trowbridge Foundation based?
Trowbridge 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 27 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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