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· Private foundation

The Duffy and Tina Oyster Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$291k
Granted FY2024still arriving
15
Grants FY2024still arriving
7
States reached
$101k
Largest
01What it funds
0197% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Education$406kReligion$282kFood & Nutrition$140kHealth$83kPhilanthropy$82kYouth Development$21kRecreation & Sports$18kArts & Culture$18kOther$0
02FY2024 · 15 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2024

  • Under $10k8 grants · $25k
  • $10k–50k6 grants · $166k
  • $50k–250k1 grant · $101k
$9,000
Median grant
7
States reached
$9.0M
Total assets
Largest grants
RecipientAmount
Dallas International Street Church$100,500
University of North Texas$40,764
University of North Texas$31,546
Individual grant recipient$30,423
The National Philanthropic Trust$30,000
Southern Methodist University$22,286
Karen Dudley Ministries$11,000
Cause Foundation$9,000
Baylor University$8,260
Judicial Watch Inc$3,000
Booth Western Art Museum$1,500
Individual grant recipient$1,000
MD Anderson (Texas Medical Center)$1,000
Amon Carter Museum$1,000
Graham Paige Owners Club$200
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 (FY18–21, $19k) land where the poverty rate runs at 14%, against an area that typically sits at 9%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 9%Boys Town: $300 → 12%Boys Town: $100 → 12%Homeless Veterans Services of Dallas: $15k → 14%Life Message: $3k → 14%Life Message: $75 → 14%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
WY
IN
PA
CA
NE
VA
NM
AR
TN
SC
DC
HI
OK
MS
AL
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.

81%of every dollar goes to organizations it has funded before.
$859k · 24 repeat orgs$201k to everyone else

Grantees it renews have grown median revenue +27% since the first grant, against +19% for those funded once.

24 repeat relationships: 6 still active in FY2024, 18 since wound down; 7 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

24
45

Total granted

$859k
$136k

Median revenue growth · since first grant

+27%
+19%

Still filing today

38%
20%

New vs renewed · share of each year

In FY2024, 75% of grant dollars renewed an existing relationship; $65k went to new ones.

50%100%’17’18’19’20’21’22’23’24
RenewedFirst-time

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

’17’18’19’20’21’22’23’24
EducationHuman ServicesArts & CulturePublic BenefitEnvironmentInternationalOther
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

  • BAYLOR UNIVERSITY
    5× · 2020–2024 · $136k · revenue +24%
  • KD
    KAREN DUDLEY MINISTRIES DBA DALLAS INTERNATIONAL STREET CHURCH
    2× · 2023–2024 · $21k · revenue +27%
  • SR
    SKY RANCHES INC
    2× · 2022–2023 · $13k · revenue +15%

Funded once

  • JM
    JP Morgan Donor Advised Fund
    one grant, 2019 · $52k
  • CM
    Childrens Medical Center
    one grant, 2023 · $20k
  • HV
    Homeless Veterans Services Of Dallas Inc
    one grant, 2018 · $15k · revenue +13%
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
Dallas International University

As a christian university, we provide education and research opportunities preparing global leaders to partner with local communities.

Education
2
Furman University

The primary mission of furman as a liberal arts institution is to provide a distinctive education in fine arts, humanities, social sciences, mathematics and the sciences, as well as selected professional disciplines.

Education
3
Park University

Park university's mission is to transform lives through accessible, student-centered, quality higher education.

Education
4
Uatx

Uatx is a nonprofit dedicated to building a liberal arts university committed to freedom of inquiry, freedom of conscience, and civil discourse. to maintain these principles, the university will be fiercely independent financially,…

Education
5
Trinity University

Trinity university is an independent co-educational university whose mission is excellence in the interrelated areas of teaching, research and services.

Education
6
Drake University

See schedule o.drake's mission is to provide an exceptional learning environment that prepares students for meaningful personal lives, professional accomplishments, and responsible global citizenship. the drake experience is distinguished…

Education
7
Boston Architectural College

The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.

—
8
Augustana College

Rooted in the liberal arts & sciences & lutheran expression of the christian faith, & is committed to offering a challenging education that develops qualities of mind, spirit, & body necessary for a rewarding life of leadership & service…

Education
9
Dallas Baptist University

The purpose of dallas baptist university is to provide christ-centered quality higher education in the arts, sciences, and professional studies at both the undergraduate and graduate levels to traditional age and adult students in order to…

Education
10
Howard Payne University

Howard payne university is a christ-centered academic community dedicated to excellence by developing and equipping the whole person for intellectual inquiry, personal and professional integrity, and service to god and humanity.

Education
11
Golden Gate University

Golden gate university prepares individuals to lead and serve by providing high quality, practice-based educational programs in law, taxation, business and related professions - as a nonprofit institution - in an innovative and challenging…

Education
12
United States Naval Institute

Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.

—
How this is measured
The grantee most central to the portfolio’s shape is The Heritage Foundation; the most unlike its peers is Father Flanagan's Boys' Home. 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

22 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. 22 of the 77 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)
2
Early backer (in before they grew)
22/22
Grantees still filing
17/22
Grew since first funded

Where the money sits, by cause and then by grantee

Dallas International Street Church: $398,310 · OtherDallas International Street ChurchUniversity of North Texas: $160,310 · OtherUniversity of North TexasJP Morgan Donor Advised Fund: $52,000 · OtherJP Morgan Donor Advised FundChildrens Hospital: $40,000 · OtherIndividual grant recipient: $30,423 · Other+55 more: $152,060 · Other+55 moreBAYLOR UNIVERSITY: $136,393 · EducationBAYLOR UNIVERSITYSouthern Methodist University: $22,286 · EducationSouthern Methodis…THE CAUSE FOUNDATION: $9,000 · Education+3 more: $4,205 · EducationNATIONAL PHILANTHROPIC TRUST: $30,000 · Philanthropy+1 more: $313 · PhilanthropyKAREN DUDLEY MINISTRIES DBA DALLAS INTERNATIONAL STREET CHURCH: $21,000 · ReligionHomeless Veterans Services Of Dallas Inc: $15,368 · Human ServicesLife Message Inc: $3,057 · Human Services+1 more: $400 · Human ServicesJUDICIAL WATCH INC: $5,000 · Public BenefitTHE HERITAGE FOUNDATION: $3,500 · Public BenefitTHE COUSE FOUNDATION: $5,000 · Arts & CultureAMON CARTER MUSEUM OF WESTERN ART: $1,000 · Arts & CultureDallas Museum of Art: $1,000 · Arts & Culture
Other$833,103Education$171,884Philanthropy$30,313Religion$21,000Human Services$18,825Public Benefit$8,500Arts & Culture$7,000

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

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetBAYLOR UNIVERSITY: $136,393 over 5y, 0.0% of budgetNATIONAL PHILANTHROPIC TRUST: $30,000 over 1y, 0.0% of budgetSouthern Methodist University: $22,286 over 1y, 0.0% of budgetKAREN DUDLEY MINISTRIES DBA DALLAS INTERNATIONAL STREET CHURCH: $21,000 over 2y, 2.4% of budgetHomeless Veterans Services Of Dallas Inc: $15,368 over 1y, 7.6% of budgetSKY RANCHES INC: $12,750 over 2y, 0.1% of budgetTHE CAUSE FOUNDATION: $9,000 over 1y, 22% of budgetJUDICIAL WATCH INC: $5,000 over 4y, 0.0% of budgetTHE COUSE FOUNDATION: $5,000 over 5y, 0.3% of budgetLIVE OAK CLASSICAL SCHOOL: $4,120 over 2y, 0.1% of budgetDALLAS ARBORETUM AND BOTANICAL SOCIETY INC: $3,500 over 1y, 0.0% of budgetTHE HERITAGE FOUNDATION: $3,500 over 4y, 0.0% of budgetLife Message Inc: $3,057 over 1y, 0.1% of budgetAMON CARTER MUSEUM OF WESTERN ART: $1,000 over 1y, 0.0% of budgetDallas Museum of Art: $1,000 over 1y, 0.0% of budgetFather Flanagan's Boys' Home: $400 over 2y, 0.0% of budgetGOFUNDMEORG: $313 over 2y, 0.0% of budgetSTAND FOR AMERICA INC: $145 over 1y, 0.0% of budgetFEED THE CHILDREN INC: $100 over 1y, 0.0% of budgetHAWAII PACIFIC UNIVERSITY: $45 over 1y, 0.0% of budgetThe University of Tampa Incorporated: $40 over 1y, 0.0% of budgetNATIONAL PARKS CONSERVATION ASSOCIATION: $25 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.

  • Who funds BAYLOR UNIVERSITY ↗
  • Who funds NATIONAL PHILANTHROPIC TRUST ↗
  • Who funds Southern Methodist University ↗
  • Who funds KAREN DUDLEY MINISTRIES DBA DALLAS INTERNATIONAL STREET CHURCH ↗
  • Who funds Homeless Veterans Services Of Dallas Inc ↗
  • Who funds SKY RANCHES INC ↗
  • Who funds THE CAUSE FOUNDATION ↗
  • Who funds JUDICIAL WATCH INC ↗
  • Who funds THE COUSE FOUNDATION ↗
  • Who funds LIVE OAK CLASSICAL SCHOOL ↗
  • Who funds DALLAS ARBORETUM AND BOTANICAL SOCIETY INC ↗
  • Who funds THE HERITAGE FOUNDATION ↗
  • Who funds Life Message Inc ↗

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.

Communities Foundation of Texas IncTX16.2× affinity6 shared granteesties to 3 of 3Hover any node to trace its alignments.Compare side by side →

Open a dossier: Communities Foundation of Texas Inc · Tulsa Community Foundation · 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.

How much its grantees rely on government

Each dot is one organization The Duffy and Tina Oyster Foundation funds: left to right is the share of its income from government, bottom to top the share from The Duffy and Tina Oyster Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%2%6%14%25%funder's share of their income ↑0%6%13%19%25%share of the org’s income from government →median 1%
  • Feed the Children Inc: 1% of income from government
  • The University of Tampa Incorporated: 0% of income from government
no gov moneyreceives it· size = income
0get 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 · 0–25%
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 77 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 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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