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Plinth

· Private foundation

Henry & Louise Mermelstein Charitable 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.

$827k
Granted FY2024still arriving
16
Grants FY2024still arriving
States reached
$20k
Largest
01What you fund
0191% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Science & Tech$3.8MReligion$939kEducation$31kHuman Services$20kArts & Culture$3kPublic Benefit$500Civil Rights$245Other$0
02FY2024 · 16 grants

Where the money goes

Your grants by size, and where they go.

The 16 grants below total $60,240 — the rows itemised in this filing. The $826,631 headline is the total grant expense reported on the return, so the remaining $766,391 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.

By grant size · FY2024

  • Under $10k14 grants · $30k
  • $10k–50k2 grants · $30k
$3,000
Median grant
States reached
$5.1M
Total assets
Largest grants
RecipientAmount
Shvu Return Inc.$20,000
Shidduch Chicago Inc,$10,000
Tzur Foundation$6,500
Tomchei Shabbos of BP$5,000
Torah Center of Chestnut Ridge$3,000
CATV$3,000
Keren Chasanim of Saad L'Talmid$3,000
Kollel Avi Ezri Elad$3,000
Cong. Ahavas Tzedakah V'Chesed$1,500
American Friends of Ramat Bais Shemesh$1,200
Friends of Zichron Meir$1,000
Torah Center of America$1,000
Yeshiva Gedolah Zichron Yosef Aryeh$1,000
Yeshiva Gedolah of Patterson$500
Botoshon$360
02Your edge
repeat funding

Who you back again

Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.

21%of every dollar goes to organizations you’ve funded before.
$211k · 8 repeat orgs$785k to everyone else

8 repeat relationships — 4 still active in FY2024, 4 since wound down; 12 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

8
30

Total granted

$211k
$730k

Still filing today

0%
0%

New vs renewed · share of each year

In FY2024, 10% of grant dollars renewed an existing relationship; $54k went to new ones.

50%100%’22’23’24
RenewedFirst-time

First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). 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

  • FO
    Friends of Brisker Yeshiva
    2× · 2022–2023 · $150k
  • NA
    Novominsk Alumnai Fund
    2× · 2022–2023 · $31k
  • KA
    Kollel Avi Ezri Elad
    3× · 2022–2024 · $11k

Funded once

  • YT
    Yeshivas Tiferes Chaim Aryeh
    one grant, 2023 · $300k
  • YT
    Yeshiva Tiferes Chaim Aryeh
    one grant, 2022 · $300k
  • CA
    Cong. Adas Yaakov Novominsk
    one grant, 2023 · $28k

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

03Your field
03the grantee network

0 grantees tracked through their own filings, 2022–2024.

Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.

Counted here: distinct organizations you funded across 20222024, not grant rows in a single year — so this will not match the grant count on the cover. 0 of the 50 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.

0
Load-bearing (≥25% of a budget)
0
Early backer (in before they grew)
0/0
Grantees still filing
0/0
Grew since you first funded

Where your money sits — by cause, then by grantee

Yeshivas Tiferes Chaim Aryeh — $300,000 · OtherYeshivas Tiferes Chaim AryehYeshiva Tiferes Chaim Aryeh — $300,000 · OtherYeshiva Tiferes Chaim AryehFriends of Brisker Yeshiva — $150,000 · OtherFriends of Brisker Yeshiva+47 more — $245,305 · Other+47 more
Other$995,305

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%grantee revenue →↑ your share of their budget
Go grantee by grantee — a decade per org, and how each moved after you funded them

A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.

On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 50 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

Generated from your IRS Form 990-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12–24 months behind; figures are dated accordingly.

Possibly out of date. A more recent filing (FY2025) is on record and reports $1.4M 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

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