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Louisiana · Private foundation

Arthur and Joyce Trowbridge Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$283k
Granted FY2025(still arriving)
10
Grants FY2025
6
Organizations funded FY2024
83%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$30,000
Largest grant, FY2025
$50,000
Organizations funded a year
4 to 14
FY2020 to FY2024
States reached, FY2025
1
Total assets, FY2025
$6.7M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 83% of the organizations Arthur and Joyce Trowbridge Foundation funded were first-time grantees, receiving 80% of its grant dollars.

New vs renewed · share of each year

In FY2024, 20% of grant dollars renewed an existing relationship; $82k 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
ReligionPhilanthropyHealthHousing & ShelterOther
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 arriving10$283k80%
FY20246$102k83%
FY20234$2k25%
FY202211$82564%
FY202114$7k71%
FY20206$985n/a
100% classified

What it funded, over time

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

Health$110kHuman Services$100kFood & Nutrition$60kCommunity Improvement$40kReligion$32kCrime & Legal$30kEducation$21kRecreation & Sports$2kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

IL
NY
PA
MO
VA
MD
TN
DC
LA
MS
AL
GA
TX
FL

Top grantees

Largest recipients by total granted, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 14 grantees
All grantees of Arthur and Joyce Trowbridge Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Catholic Charities of North Louisiana$50,00023%
Community Renewal International Inc$40,0001n/a
Gingerbread House Bossiercaddo Children's Advocacy Center Inc$30,0001n/a
Cross Catholic Outreach Inc$3001n/a
Marine Toys for Tots Foundation$10010%
Catholic Relief Services$622n/a
SIPES Foundation$5010%
Eternal Word Television Network Inc$5010%
The Foundation for a Christian Civilization Inc$5010%
Medecins Sans Frontieres USA Inc$3510%
International Fellowship of Christians & Jews Inc$2510%
Arthritis Foundation Inc$2010%
Shreveport Bossier Rescue Mission$1610%
Association of the Miraculous Medal$121n/a

Plus 23 recipients with no EIN on record ($275k), not named here.

Where it is load-bearing

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCatholic Charities of North Louisiana: $50,000 over 2y, 2.5% of budgetMarine Toys for Tots Foundation: $100 over 1y, 0.0% of budgetSIPES Foundation: $50 over 1y, 0.1% of budgetEternal Word Television Network Inc: $50 over 1y, 0.0% of budgetThe Foundation for a Christian Civilization Inc: $50 over 1y, 0.0% of budgetMedecins Sans Frontieres USA Inc: $35 over 1y, 0.0% of budgetInternational Fellowship of Christians & Jews Inc: $25 over 1y, 0.0% of budgetArthritis Foundation Inc: $20 over 1y, 0.0% of budgetShreveport Bossier Rescue Mission: $16 over 1y, 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 9.

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.

Grayson Foundation IncLA13.6× affinity4 shared granteesties to 4 of 4Hover any node to trace its alignments.Compare side by side →

Open a dossier: Grayson Foundation Inc · Community Foundation of North Louisiana · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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 Arthur and Joyce Trowbridge Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Arthur and Joyce Trowbridge Foundation?

Find your warmest path to Arthur and Joyce 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 Arthur and Joyce Trowbridge Foundation

How much does Arthur and Joyce Trowbridge Foundation give?
Arthur and Joyce Trowbridge Foundation reported 10 grants totaling $283,000 in its FY2025 IRS filing. It funded between 4 and 14 organizations a year over FY2020 to FY2024.
What does Arthur and Joyce Trowbridge Foundation fund?
By grant dollars over FY2020 to FY2025, its largest causes are Health (28%), Human Services (25%), Food & Nutrition (15%).
Who are Arthur and Joyce Trowbridge Foundation's largest grantees?
By total granted over FY2020 to FY2025: Catholic Charities of North Louisiana ($50k), Community Renewal International Inc ($40k), Gingerbread House Bossiercaddo Children's Advocacy Center Inc ($30k).
Does Arthur and Joyce Trowbridge Foundation fund new organizations?
In FY2024, 83% of the organizations it funded were first-time grantees.
Does Arthur and Joyce Trowbridge Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Arthur and Joyce Trowbridge Foundation?
Its strongest co-funders, measured against what their size predicts, include Grayson Foundation Inc, Community Foundation of North Louisiana, Donor Advised Charitable Giving Inc.
Where is Arthur and Joyce Trowbridge Foundation based?
Arthur and Joyce Trowbridge Foundation is based in LA.

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 37 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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