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· Private foundation

The Ethel Cox Marden Charitable Foundation

Its FY2023 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$135k
Granted FY2021
18
Grants FY2021
7
States reached
$35k
Largest

Read this first · the figures below need context

83% of The Ethel Cox Marden Charitable Foundation’s FY2023 grant dollars went to Vanguard Charitable Endowment Program, not to grantees.

Its money now reaches organizations through that sponsor, which does not report who recommended each grant. FY2023 names 1 organization directly, so a portfolio cannot be read from it. Everything below is therefore FY2021, the last year The Ethel Cox Marden Charitable Foundation named its own grantees at scale: 12 organizations, $135k. It is dated, not current.

Organizations named directly on the return

8
’19
9
’20
12
’21
1
’22
1
’23

Amber years are those where most dollars went to a sponsor.

01What it funds
0194% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2019 to 2023.

Philanthropy$283kHealth$113kArts & Culture$82kRecreation & Sports$69kHuman Services$30kReligion$15kEducation$4kPublic Safety & Disaster$3kOther$0
02FY2021 · 18 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2021

  • Under $10k14 grants · $45k
  • $10k–50k4 grants · $90k
$4,000
Median grant
7
States reached
$1.6M
Total assets
Largest grants
RecipientAmount
Parks Foundation of Pender County Inc$35,000
Inova Health Foundation$30,000
Washington National Cathedral$15,000
Mount Vernon Ladies' Assoc$10,000
ALSAC St Jude's Children's$5,000
WETA$5,000
Smithsonian Institution$5,000
Individual grant recipient$5,000
Tintagel Charitable Foundation$4,000
The Montpelier Foundation$2,500
Frank Lloyd Wright Bldg Conservancy$2,500
Frank Lloyd Wright Foundation$2,500
National Gallery of Art$2,500
Kennedy Center$2,500
Smithsonian American Art Museum$2,500
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:

Dollar for dollar, its grants (FY19–23) land where the poverty rate runs at 9%, against an area that typically sits at 9%. 31% of its dollars go to grantees based in above-average-need neighborhoods. Its grants skew toward lower-need ZIPs.

area typical 9%Frank Lloyd Wright Foundation: $3k → 11%Kennedy Center: $3k → 14%ALSAC St Jude's Childrens: $10k → 17%Parks Foundation of Pender County Inc: $35k → 11%Vanguard Charitable Endowment Progr: $125k → 7%Frank Lloyd Wright Bldg Conservancy: $3k → 14%Tintagel Charitable Foundation: $25k → 6%WETA: $5k → 7%The Montpellier Foundation: $5k → 10%Potomac Conservatory: $5k → 8%National Gallery of Art: $3k → 11%Frank Lloyd Wright Foundation: $1k → 11%Kennedy Center: $3k → 14%ALSAC St Jude's Children's: $5k → 17%Parks Foundation of Pender County Inc: $34k → 11%Vanguard Charitable Endowment Progr: $125k → 7%Frank Lloyd Wright Bldg Conservancy: $3k → 14%Tintagel Charitable Foundation: $4k → 6%WETA: $5k → 7%The Montpelier Foundation: $3k → 10%Potomac Conservatory: $3k → 8%Kennedy Center: $3k → 14%Frank Lloyd Wright Bldg Conservancy: $3k → 14%Tintagel Charitable Foundation: $4k → 6%WETA: $5k → 7%Potomac Conservatory: $3k → 8%Washington National Cathedral: $15k → 14%McLean Volunteer Fire Dept: $1k → 6%Smithsonian Institution: $5k → 14%McLean Volunteer Fire Dept: $1k → 6%Smithsonian Institution: $5k → 14%McLean Volunteer Fire Dept: $1k → 6%Smithsonian American Art Museum: $3k → 14%Inova Health Foundation: $30k → 6%Smithsonian Institution: $3k → 14%Inova Health Foundation: $30k → 6%Smithsonian American Art Museum: $3k → 14%Inova Health Foundation: $30k → 6%Planned Parenthood of Met Wash: $3k → 14%Planned Parenthood: $3k → 14%Metropolitan Club Preservation Foundation: $2k → 14%Planned Parenthood of Met Wash: $3k → 14%Metropolitan Club Presentation Foundation: $2k → 14%National Gallery of Art: $15k → 14%National Gallery of Art: $3k → 14%National Gallery of Art: $3k → 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

IL
RI
VA
MD
AZ
TN
NC
DC
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.

95%of every dollar goes to organizations it has funded before.
$340k · 16 repeat orgs$18k to everyone else

16 repeat relationships: 15 still active in FY2021, 1 since wound down; 2 grantees were first funded in FY2021 (too recent to call). Read against FY2021, the last year this funder named its own grantees directly; its giving has since run through a sponsor, which reports no donor behind each grant.

How the two cohorts compare

Re-uppedFunded once

Organizations

16
2

Total granted

$340k
$18k

Still filing today

69%
0%

New vs renewed · share of each year

In FY2023, 100% of grant dollars renewed an existing relationship; $0 went to new ones.

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

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

’19’20’21’22’23
Arts & CultureHealthPublic Safety & DisasterRecreation & SportsEducationPhilanthropyOther
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

  • IH
    INOVA HEALTH SYSTEM FOUNDATION
    3× · 2019–2021 · $90k · revenue +8%
  • TC
    Tintagel Charitable Foundation
    3× · 2021–2023 · $33k · revenue +190% · 73% of their budget
  • NG
    National Gallery of Art
    3× · 2019–2021 · $23k · revenue +69%

Funded once

  • PE
    PROTESTANT EPISCOPAL CATHEDRAL FOUNDATION OF THE D OF C
    one grant, 2021 · $15k
  • PP
    Planned Parenthood
    one grant, 2021 · $3k
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
Tudor Place Foundation Inc

Tudor place historic house & garden preserves the stories of six generations of descendants of martha washington and the enslaved and free people who lived and worked at this georgetown landmark for nearly two centuries. by examining their…

—
2
Museum of Arts and Design

To collect, display and interpret objects in craft art and design.

Arts & Culture
3
The Pierpont Morgan Library

The Morgan Library & Museum celebrates and shares the history and process of human creativity from antiquity to the present day through the preservation, study, and interpretation of a dynamic and growing collection.

Education
4
The Virginia Foundation for Architecture Incorporated

Elevating awareness of the transformative power of architecture and design.

—
5
Museum of American Finance

Finance impacts everyone. as a socially relevant organization, the museum of american finance seeks to improve understanding of the influence of financial institutions and capital markets on the u.s. and global economies, and on…

—
6
Trust for Architectural Easements

The Trust will be a leading force in the preservation of America's architectural heritage. The Trust accepts donations of historic preservation easements to protect buildings.

Arts & Culture
7
The George Washington Masonic National Memorial Association

The purpose of the organization is to maintain in the city of alexandria, virginia, a suitable memorial temple to george washington, the mason, which expresses in durability and beauty, the exalted and undying esteem of the freemasons of…

Arts & Culture
8
Npr Foundation

The npr foundation ("foundation") is organized and operated exclusively for the benefit of its sole supported organization, national public radio, inc. ("npr inc."). the foundation supports npr inc. through various activities such as…

—
9
Museum of Modern Art

The Museum of Modern Art is a private, non-profit institution chartered by the State of New York Department of Education in 1929 to foster public awareness of modern and contemporary art. (Continued in Schedule O)

Arts & Culture
10
Montgomery County Community Foundation

The mission of the Montgomery County Community Foundation (MCCF) is to provide leadership in Montgomery County by directing sustainable financial resources that strengthen our community and improve the quality of life for current and…

Philanthropy
11
White House Endowment and Acquisition Trust

To support, in perpetuity, the preservation and conservation of the public rooms of the white house and its collection of fine and decorative arts.

Arts & Culture
12
The Masonic Foundation of the District of Columbia
Membership Benefit
How this is measured
The grantee most central to the portfolio’s shape is The Frank Lloyd Wright Foundation; the most unlike its peers is Tintagel Charitable Foundation. 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

13 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. 13 of the 19 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.

2
Load-bearing (≥25% of a budget)
2
Early backer (in before they grew)
13/13
Grantees still filing
12/13
Grew since first funded

Where the money sits, by cause and then by grantee

VANGUARD CHARITABLE ENDOWMENT PROGRAM: $250,000 · PhilanthropyVANGUARD CHARITABLE ENDOWMENT PROGRAMTintagel Charitable Foundation: $33,000 · PhilanthropyTintagel Charitable FoundationINOVA HEALTH SYSTEM FOUNDATION: $90,000 · HealthINOVA HEALTH SYS…Mount Vernon Ladies' Assoc: $30,000 · OtherMount Vernon La…ALSAC St Jude's Childrens: $15,000 · OtherALSAC St Jude's…PROTESTANT EPISCOPAL CATHEDRAL FOUNDATION OF THE D OF C: $15,000 · OtherPROTESTANT EPIS…Individual grant recipient: $10,000 · OtherIndividual gran…Kennedy Center: $7,500 · OtherKennedy CenterPlanned Parenthood of Met Wash: $5,000 · OtherPlanned Parenth…+1 more: $2,500 · OtherNational Gallery of Art: $22,500 · Arts & CultureNational Gall…SMITHSONIAN INSTITUTION: $17,500 · Arts & CultureSMITHSONIAN I…GREATER WASHINGTON EDUCATIONAL TELECOMMUNICATIONS ASSOCIATION INC: $15,000 · Arts & CultureGREATER WASHI…MONTPELIER FOUNDATION: $7,500 · Arts & CultureMONTPELIER FO…FRANK LLOYD WRIGHT BUILDING CONSERVANCY: $7,500 · Arts & CultureFRANK LLOYD W…METROPOLITAN CLUB PRESERVATION FOUNDATION: $4,000 · Arts & CultureMETROPOLITAN …PARKS FOUNDATION OF PENDER COUNTY: $69,106 · Recreation & SportsPARKS FOUNDA…THE FRANK LLOYD WRIGHT FOUNDATION: $3,500 · EducationMCLEAN VOLUNTEER FIRE DEPT INC: $3,000 · Public Safety & Disaster
Philanthropy$283,000Health$90,000Other$85,000Arts & Culture$74,000Recreation & Sports$69,106Education$3,500Public Safety & Disaster$3,000

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 budgetVANGUARD CHARITABLE ENDOWMENT PROGRAM: $250,000 over 2y, 0.0% of budgetINOVA HEALTH SYSTEM FOUNDATION: $90,000 over 3y, 0.0% of budgetPARKS FOUNDATION OF PENDER COUNTY: $69,106 over 2y, 94% of budgetTintagel Charitable Foundation: $33,000 over 3y, 73% of budgetNational Gallery of Art: $22,500 over 3y, 0.0% of budgetSMITHSONIAN INSTITUTION: $17,500 over 3y, 0.0% of budgetGREATER WASHINGTON EDUCATIONAL TELECOMMUNICATIONS ASSOCIATION INC: $15,000 over 3y, 0.0% of budgetMONTPELIER FOUNDATION: $7,500 over 2y, 0.1% of budgetFRANK LLOYD WRIGHT BUILDING CONSERVANCY: $7,500 over 3y, 0.4% of budgetMETROPOLITAN CLUB PRESERVATION FOUNDATION: $4,000 over 2y, 0.3% of budgetTHE FRANK LLOYD WRIGHT FOUNDATION: $3,500 over 2y, 0.0% of budgetMCLEAN VOLUNTEER FIRE DEPT INC: $3,000 over 3y, 0.5% 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 Philanthropic TrustPA8.3× affinity4 shared granteesties to 5 of 5Hover any node to trace its alignments.Compare side by side →

Open a dossier: National Philanthropic Trust · Vanguard Charitable Endowment Program · American Online Giving Foundation Inc · Donor Advised Charitable Giving 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.

How much its grantees rely on government

Each dot is one organization The Ethel Cox Marden Charitable Foundation funds: left to right is the share of its income from government, bottom to top the share from The Ethel Cox Marden Charitable Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%6%25%56%100%funder's share of their income ↑0%3%5%8%10%share of the org’s 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 · 0–10%
    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.
    05Through Plinth

    Warm introductions · Powered by PlinthPlus

    How do I get to The Ethel Cox Marden Charitable Foundation?

    Find your warmest path to The Ethel Cox Marden Charitable Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.

    Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.

    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 19 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 2021, released 2021. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

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