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Pennsylvania · Private foundation

The Mary E Groff Charitable Trust 2631-00-46

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.

$347k
Granted FY2025(still arriving)
6
Grants FY2025
6
Organizations funded FY2024
33%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$77,250
Largest grant, FY2025
$100,000
Organizations funded a year
2 to 10
FY2018 to FY2024
States reached, FY2025
3
Total assets, FY2025
$4.7M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 33% of the organizations The Mary E Groff Charitable Trust 2631-00-46 funded were first-time grantees, receiving 7% of its grant dollars.

New vs renewed · share of each year

In FY2024, 93% of grant dollars renewed an existing relationship; $20k went to new ones.

50%100%’19’20’21’22’23’24
RenewedFirst-time

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

’19’20’21’22’23’24
EducationRecreation & SportsOther
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 arriving4$270k50%
FY20246$280k33%
FY20238$238k0%
FY202210$396k30%
FY20217$333k43%
FY20204$228k25%
FY20192$84k0%
FY20187$166kn/a
98% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2018 to 2025.

Education$1.9MHealth$402kScience & Tech$56kArts & Culture$15kRecreation & Sports$15kReligion$10kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ME
WA
MN
NY
MA
PA
CA
MO
DC
TX

Top grantees

Largest recipients by total granted, FY2018 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 13 grantees
All grantees of The Mary E Groff Charitable Trust 2631-00-46 by total granted
GranteeTotal grantedYearsShare of their budget
Washington University$590,00060%
Williams College$330,00040%
Georgetown University$250,00050%
American Brain Foundation$223,33352%
University of Washington Foundation$100,00010%
Mercer Island Schools Foundation$57,96071%
Marine Biological Laboratory$55,80020%
Trinity University$50,00020%
Acus Foundation$20,000131%
Mercer Island High School Football$15,00036%
Mercer Island Lacrosse Club$15,00032%
Cristo Rey Jesuit Seattle High School$10,0001n/a
First Night Project$5,2501n/a

What it could do for these grantees

Plus 5 recipients with no EIN on record ($274k), not named here.

Where it is load-bearing

The Mary E Groff Charitable Trust 2631-00-46 supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 11 largest grantees; load-bearing ones sit top left.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetWashington University: $590,000 over 6y, 0.0% of budgetWilliams College: $330,000 over 4y, 0.0% of budgetGeorgetown University: $250,000 over 5y, 0.0% of budgetAmerican Brain Foundation: $223,333 over 5y, 1.7% of budgetUniversity of Washington Foundation: $100,000 over 1y, 0.1% of budgetMercer Island Schools Foundation: $57,960 over 7y, 1.0% of budgetMarine Biological Laboratory: $55,800 over 2y, 0.1% of budgetTrinity University: $50,000 over 2y, 0.0% of budgetAcus Foundation: $20,000 over 1y, 31% of budgetMercer Island High School Football: $15,000 over 3y, 6.3% of budgetMercer Island Lacrosse Club: $15,000 over 3y, 1.7% 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 11.

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.

American Online Giving Foundation IncDE6.7× affinity4 shared granteesties to 2 of 2Hover any node to trace its alignments.Compare side by side →

Open a dossier: American Online Giving Foundation 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 The Mary E Groff Charitable Trust 2631-00-46 with peer funders

About The Mary E Groff Charitable Trust 2631-00-46

How much does The Mary E Groff Charitable Trust 2631-00-46 give?
The Mary E Groff Charitable Trust 2631-00-46 reported 6 grants totaling $347,250 in its FY2025 IRS filing. It funded between 2 and 10 organizations a year over FY2018 to FY2024.
What does The Mary E Groff Charitable Trust 2631-00-46 fund?
By grant dollars over FY2018 to FY2025, its largest causes are Education (79%), Health (17%), Science & Tech (2%).
Who are The Mary E Groff Charitable Trust 2631-00-46's largest grantees?
By total granted over FY2018 to FY2025: Washington University ($590k), Williams College ($330k), Georgetown University ($250k).
Does The Mary E Groff Charitable Trust 2631-00-46 fund new organizations?
In FY2024, 33% of the organizations it funded were first-time grantees.
Does The Mary E Groff Charitable Trust 2631-00-46 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 The Mary E Groff Charitable Trust 2631-00-46?
Its strongest co-funders, measured against what their size predicts, include American Online Giving Foundation Inc, Fidelity Investments Charitable Gift Fund, Amazonsmile Foundation.
Where is The Mary E Groff Charitable Trust 2631-00-46 based?
The Mary E Groff Charitable Trust 2631-00-46 is based in PA.

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 20 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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