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Reuben and Rose Mattus Foundation Inc at a glance

· Private foundation

Reuben and Rose Mattus Foundation Inc

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.

$84k
Granted FY2025still arriving
9
Grants FY2025still arriving
5
States reached
$50k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0196% classified

What it funded, over time

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

Health$615kArts & Culture$89kReligion$65kAnimals$54kEducation$32kFood & Nutrition$28kHuman Services$21kInternational$15kOther$0
02FY2025 · 9 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k7 grants · $19k
  • $10k–50k1 grant · $15k
  • $50k–250k1 grant · $50k
$2,500
Median grant
5
States reached
$1.3M
Total assets
Largest grants
RecipientAmount
BOCA RATON REGIONAL HOSPITAL FOUNDA$50,000
TEEN CANCER AMERICA$15,000
TUNNEL TO TOWERS FOUNDATION$5,000
ST JUDE CHILDREN'S RESEARCH HOSPIT$5,000
BOCA HELPING HANDS$2,500
TRI COUNTRY HUMAN SOCIETY$2,500
STANDARDBREAD RETIREMENT FOUNDATION$2,000
SOUTH EAST FLORIDA HONOR FLIGHT$1,000
SIMON WIESENTHAL CENTER$500
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its human-services grants (FY21–24, $18k) land where the poverty rate runs at 28%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 11%BRONX JEWISH COMMUNITY COUNCIL: $5k → 28%BRONX JEWISH COMMUNITY COUNCIL: $5k → 28%BRONX JEWISH COMMUNITY COUNCIL: $5k → 28%BRONX JEWISH COMMUNITY COUNCIL: $3k → 28%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.

Which US states its grants reach

NY
NJ
CA
MD
TN
DC
HI
GA
TX
FL
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

88%of every dollar goes to organizations it has funded before.
$830k · 17 repeat orgs$110k to everyone else

17 repeat relationships: 7 still active in FY2025, 10 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

17
7

Total granted

$830k
$107k

Median revenue growth · since first grant

+39%
+109%

Still filing today

71%
43%

New vs renewed · share of each year

In FY2025, 96% of grant dollars renewed an existing relationship; $4k went to new ones.

50%100%’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’18’19’20’21’22’23’24’25
Arts & CultureEducationYouth DevelopmentFood & NutritionAnimalsCivil RightsOther
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.

Backed again, and grew

  • TU
    The United States Holocaust Memorial Museum
    5× · 2018–2023 · $65k · revenue +34%
  • TC
    TEEN CANCER AMERICA INC
    4× · 2021–2025 · $43k · revenue +98%
  • ST JUDE CHILDREN'S RESEARCH HOSPITAL INC
    6× · 2020–2025 · $32k · revenue +78%

Funded once

  • UH
    UNITED HATZALAH OF ISREAL
    one grant, 2024 · $50k
  • BH
    Bethesda Hospital Foundation Inc
    one grant, 2020 · $25k · revenue +46%
  • SG
    Southeast Georgia Health System Foundation Inc
    one grant, 2021 · $15k · revenue -54%
How this is measured

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

04Its field

Closest unfunded matches

The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.

1
St Joseph's Hospital of Tampa Foundation Inc

St. joseph's hospitals foundation secures, manages and stewards philanthropic support to benefit the health care mission of st. joseph's hospital, st. joseph's women's hospital, st. joseph's children's hospital of tampa, st. joseph's…

Health
2
The Hospice of the Florida Suncoast Inc

Suncoast hospice's mission is to be the center to improve life for those touched by advanced illness, death, dying, grief, bereavement and other end-of-life issues.

Human Services
3
Holy Cross Hospital Inc

We, holy cross hospital and trinity health, serve together in the spirit of the gospel as a compassionate and transforming healing presence within our communities. holy cross hospital is a member of trinity health.

Health
4
Sarasota Memorial Healthcare Foundation Inc

Sarasota memorial healthcare foundation is the philanthropic partner that helps sarasota memorial health care system bring world-class care to our community.

Health
5
SantaFe Healthcare Inc

The mission of santafe healthcare, inc. is to serve as the not-for-profit system parent for its family of not-for-profit, mission-driven, affiliate organizations. see schedule o for continuation of the organization's mission. santafe…

Health
6
The Hospice Institute of the Florida Suncoast Inc

Suncoast hospice institute is now inactive.

—
7
St Martin Hospital Inc

To improve, maintain and restore the health of the people in the communities we serve.

Health
8
Metropolitan Jewish Health System Inc

Mjhs health system is a charitable not-for-profit established to support the activities of affiliated organizations. mjhs is built on the core values of compassion, dignity and respect, first established by the four brooklyn ladies in…

Health
9
South Florida Baptist Hospital Inc

To improve the health of all we serve through community-owned health care services that set the standard for high-quality, compassionate care. AS a part of BayCare Health System, South Florida Baptist Hospital is the best place to work,…

Health
10
Federation of State Medical Boards of the United States Inc

The fsmb serves as the voice for state medical boards, supporting them through education, assessment, research and advocacy while providing services and initiatives that promote patient safety, quality health care and regulatory best…

Health
11
The Hospice Foundation of the Florida Suncoast Inc

The mission of suncoast hospice foundation is to advance the understanding, participation, and support of the mission and programs of suncoast hospice and its affilated organizations, honoring the community's sacred trust through sound…

—
12
Mount Sinai Medical Center of Florida Inc

To provide high quality health care to our diverse community enhanced through teaching, research, charity care and financial responsibility.

Health
How this is measured
The grantee most central to the portfolio’s shape is Bethesda Hospital Foundation Inc; the most unlike its peers is Feeding America. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
04the grantee network

18 grantees tracked through their own filings, 2017–2025.

Each grant beside the grantee’s revenue from every source, year by year.

How this is measured

Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 18 of the 27 grantees resolved in that span have returns of their own we could reconcile.

Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.

0
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
17/18
Grantees still filing
14/18
Grew since first funded

Where the money sits, by cause and then by grantee

BOCA RATON REGIONAL HOSPITAL FOUNDA: $500,000 · OtherBOCA RATON REGIONAL HOSPITAL FOUNDAUNITED HATZALAH OF ISREAL: $50,000 · OtherUNITED HATZALAH OF ISREALBethesda Hospital Foundation Inc: $25,000 · Other+12 more: $133,500 · Other+12 moreThe United States Holocaust Memorial Museum: $65,000 · Arts & CultureSIMON WIESENTHAL CENTER INC: $3,000 · Arts & Culture+1 more: $500 · Arts & CultureTEEN CANCER AMERICA INC: $43,000 · Youth DevelopmentWarrior Dog Foundation: $10,000 · Youth DevelopmentSTEPHEN SILLER TUNNEL TO TOWERS FOUNDATION: $30,000 · Education+2 more: $2,000 · EducationST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $31,500 · HealthFeeding America: $20,000 · Food & NutritionBOCA HELPING HANDS INC: $7,500 · Food & NutritionTRI COUNTY HUMANE SOCIETY: $20,000 · Animals
Other$708,500Arts & Culture$68,500Youth Development$53,000Education$32,000Health$31,500Food & Nutrition$27,500Animals$20,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetThe United States Holocaust Memorial Museum: $65,000 over 5y, 0.0% of budgetTEEN CANCER AMERICA INC: $43,000 over 4y, 0.9% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC: $31,500 over 6y, 0.0% of budgetSTEPHEN SILLER TUNNEL TO TOWERS FOUNDATION: $30,000 over 4y, 0.0% of budgetBethesda Hospital Foundation Inc: $25,000 over 1y, 0.2% of budgetFeeding America: $20,000 over 3y, 0.0% of budgetTRI COUNTY HUMANE SOCIETY: $20,000 over 3y, 0.2% of budgetSTANDARDBRED RETIREMENT FOUNDATION INC: $19,000 over 5y, 0.3% of budgetBRONX JEWISH COMMUNITY COUNCIL INC: $18,000 over 4y, 3.3% of budgetMEDECINS SANS FRONTIERES USA INC: $15,000 over 3y, 0.0% of budgetSoutheast Georgia Health System Foundation Inc: $15,000 over 1y, 0.4% of budgetWarrior Dog Foundation: $10,000 over 2y, 0.5% of budgetBOCA HELPING HANDS INC: $7,500 over 2y, 0.0% of budgetSIMON WIESENTHAL CENTER INC: $3,000 over 7y, 0.0% of budgetHAWAII COMMUNITY FOUNDATION: $1,000 over 1y, 0.0% of budgetTORAH ACADEMY OF BOCA RATON INC: $1,000 over 1y, 0.0% of budgetSLOW BURN THEATRE COMPANY INC: $500 over 1y, 0.0% of budget
Grantee by grantee: a decade per organization, before and after funding

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

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.

National Philanthropi…The Bank of America C…American Online Givin…Fidelity Investments …Donor Advised Charita…Amazonsmile Foundation
National Philanthropic TrustPA7.6× affinity4 shared granteesties to 5 of 5Hover any node to trace its alignments.Compare side by side →

Open a dossier: National Philanthropic Trust · The Bank of America Charitable Foundation Inc · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving 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.

How much its grantees rely on government

Each dot is one organization Reuben and Rose Mattus Foundation Inc funds: left to right is the share of its income from government, bottom to top the share from Reuben and Rose Mattus Foundation Inc. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 30%0%1%3%5%funder's share of their income ↑0%3%5%8%10%share of the org’s income from government →median 0%
  • Torah Academy of Boca Raton Inc: 0% of income from government
no gov moneyreceives it· size = income
3get no government money at all
3report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–10%
typical government reliance, FY20–25
How this is measured
Government income is each org’s traced federal awards (USASpending grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that a grant caused the public funding. Coverage is precision-first, a floor rather than a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12 to 24 months.

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

Play a game based on Reuben and Rose Mattus’ filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home