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Texas · Private foundation

Sloper William T

Its FY2025 filing reports that it accepted unsolicited grant applications.

$20k
Granted FY2025(still arriving)
4
Grants FY2025
4
Organizations funded FY2024
50%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$5,000
Largest grant, FY2025
$5,000
Organizations funded a year
4 to 5
FY2018 to FY2024
States reached, FY2025
1
Total assets, FY2025
$458k
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 50% of the organizations Sloper William T funded were first-time grantees, receiving 50% of its grant dollars.

New vs renewed · share of each year

In FY2024, 50% of grant dollars renewed an existing relationship; $10k 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
Arts & CultureOther
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$20k0%
FY20244$20k50%
FY20235$25k20%
FY20225$25k20%
FY20214$20k75%
FY20205$19k20%
FY20194$17k50%
FY20184$15kn/a
91% classified

What it funded, over time

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

Arts & Culture$127kReligion$12kCivil Rights$10kOther$0

Top grantees

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

Plus 7 recipients with no EIN on record ($86k), not named here.

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.

Marjorie Moore Charitable FdnTX17.9× affinity6 shared granteesties to 9 of 9Hover any node to trace its alignments.Compare side by side →

Open a dossier: Marjorie Moore Charitable Fdn · American Savings Foundation Inc · Edward C & Ann T Roberts Foundation · Connecticut Humanities Council Inc · Parker C Public Music Fd Uw · Sbm Charitable Foundation Inc · Community Foundation of Greater New Britain · Hartford Foundation for Public Giving · Aetna Foundation Inc · 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 Sloper William T with peer funders

About Sloper William T

How much does Sloper William T give?
Sloper William T reported 4 grants totaling $20,000 in its FY2025 IRS filing. It funded between 4 and 5 organizations a year over FY2018 to FY2024.
What does Sloper William T fund?
By grant dollars over FY2018 to FY2025, its largest causes are Arts & Culture (79%), Religion (7%), Civil Rights (6%).
Who are Sloper William T's largest grantees?
By total granted over FY2018 to FY2025: Connecticut Virtuosi Chamber Orchestra Inc ($25k), New Britain Museum of American Art Inc ($15k), Hartford Symphony Orchestra Inc ($12k).
Does Sloper William T fund new organizations?
In FY2024, 50% of the organizations it funded were first-time grantees.
Does Sloper William T accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Sloper William T?
Its strongest co-funders, measured against what their size predicts, include Marjorie Moore Charitable Fdn, American Savings Foundation Inc, Edward C & Ann T Roberts Foundation.
Where is Sloper William T based?
Sloper William T is based in TX.

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 14 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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