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Missouri · Private foundation

The Carlos & Marguerite Mason Fdn

Its FY2024 filing reports that it accepted unsolicited grant applications.

$5.1M
Granted FY2024(still arriving)
10
Grants FY2024
7
Organizations funded FY2023
29%
First-time grantees FY2023
Read the full brief
Median grant, FY2024
$400,000
Largest grant, FY2024
$2,050,000
Organizations funded a year
7 to 10
FY2020 to FY2023
States reached, FY2024
2
Total assets, FY2024
$103M
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 29% of the organizations The Carlos & Marguerite Mason Fdn funded were first-time grantees, receiving 9% of its grant dollars.

New vs renewed · share of each year

In FY2023, 91% of grant dollars renewed an existing relationship; $397k went to new ones.

50%100%’21’22’23
RenewedFirst-time

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

’21’22’23
EducationHealthOther
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
FY2024still arriving9$5.1M11%
FY20237$4.6M29%
FY20229$5.7M11%
FY20218$4.5M13%
FY202010$4.7Mn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2024.

Health$19MEducation$3.8MScience & Tech$2.1M

Top grantees

Largest recipients by total granted, FY2020 to FY2024, and the share of each one’s budget the grants supplied at peak.

Plus 5 recipients with no EIN on record ($6.1M), not named here.

Where it is load-bearing

The Carlos & Marguerite Mason Fdn supplied at least a quarter of the budget for 1 of its grantees at some point. The chart plots its 9 largest grantees; load-bearing ones sit top left.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetGeorgia Transplant Foundation Inc: $10,250,000 over 5y, 66% of budgetEmory University: $2,495,000 over 4y, 0.0% of budgetUniversity of Georgia Research Foundation Inc: $2,100,000 over 3y, 0.3% of budgetPiedmont Healthcare Foundation Inc: $1,600,000 over 2y, 2.9% of budgetAtlanta Ronald McDonald House Charities Inc: $635,000 over 5y, 1.7% of budgetAngel Flight Soars Inc: $523,000 over 5y, 5.1% of budgetEnduring Hearts Inc: $390,000 over 4y, 6.0% of budgetAugusta University Foundation Inc: $222,000 over 2y, 0.6% of budgetJeffrey Campbell Evans Foundation Inc: $25,000 over 1y, 8.4% of budget

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 9.

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.

American Online Giving Foundation IncDE7.8× affinity4 shared granteesties to 3 of 3Hover any node to trace its alignments.Compare side by side →

Open a dossier: 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.

Compare The Carlos & Marguerite Mason Fdn with peer funders

About The Carlos & Marguerite Mason Fdn

How much does The Carlos & Marguerite Mason Fdn give?
The Carlos & Marguerite Mason Fdn reported 10 grants totaling $5,100,000 in its FY2024 IRS filing. It funded between 7 and 10 organizations a year over FY2020 to FY2023.
What does The Carlos & Marguerite Mason Fdn fund?
By grant dollars over FY2020 to FY2024, its largest causes are Health (76%), Education (15%), Science & Tech (9%).
Who are The Carlos & Marguerite Mason Fdn's largest grantees?
By total granted over FY2020 to FY2024: Georgia Transplant Foundation Inc ($10M), Emory University ($2.5M), University of Georgia Research Foundation Inc ($2.1M).
Does The Carlos & Marguerite Mason Fdn fund new organizations?
In FY2023, 29% of the organizations it funded were first-time grantees.
Does The Carlos & Marguerite Mason Fdn accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as The Carlos & Marguerite Mason Fdn?
Its strongest co-funders, measured against what their size predicts, include American Online Giving Foundation Inc, Donor Advised Charitable Giving Inc, Fidelity Investments Charitable Gift Fund.
Where is The Carlos & Marguerite Mason Fdn based?
The Carlos & Marguerite Mason Fdn is based in MO.

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 15 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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