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California · Private foundation

The Mesdag Family 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.

$810k
Granted FY2025(still arriving)
46
Grants FY2025
53
Organizations funded FY2024
23%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$10,000
Largest grant, FY2025
$100,000
Organizations funded a year
20 to 53
FY2020 to FY2024
States reached, FY2025
11
Total assets, FY2025
$16M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 23% of the organizations The Mesdag Family Foundation funded were first-time grantees, receiving 27% of its grant dollars.

New vs renewed · share of each year

In FY2024, 73% of grant dollars renewed an existing relationship; $192k went to new ones.

50%100%’21’22’23’24
RenewedFirst-time

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

’21’22’23’24
EnvironmentArts & CultureInternationalPublic Safety & DisasterCivil RightsEducationOther
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
FY2025still arriving44$750k9%
FY202453$713k23%
FY202351$743k14%
FY202251$660k31%
FY202149$716k76%
FY202020$643kn/a
97% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2025.

Education$1.2MArts & Culture$1.1MEnvironment$555kInternational$415kReligion$326kPhilanthropy$276kPublic Benefit$106kPublic Safety & Disaster$99kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

NH
MT
MN
IL
NY
MA
NJ
RI
CA
CO
MO
VA
KS
TN
DC
AL
TX

Top grantees

Largest recipients by total granted, FY2020 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Music Associates of Aspen Inc$787,10063%
The Trustees of Princeton University$650,00060%
Harvard-Westlake School$225,00060%
St Monica Catholic Church$215,0005n/a
Pacific Council on International Policy$184,60062%
Theatre Aspen$165,00061%
Aspen Center for Environmental Studies$130,10061%
The Barack Obama Foundation$105,60020%
Colorado Academy$80,00040%
International Medical Corps$80,00060%
Show all 56 grantees
All grantees of The Mesdag Family Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Music Associates of Aspen Inc$787,10063%
The Trustees of Princeton University$650,00060%
Harvard-Westlake School$225,00060%
St Monica Catholic Church$215,0005n/a
Pacific Council on International Policy$184,60062%
Theatre Aspen$165,00061%
Aspen Center for Environmental Studies$130,10061%
The Barack Obama Foundation$105,60020%
Colorado Academy$80,00040%
International Medical Corps$80,00060%
Northwestern University$75,00060%
Aspen Valley Land Trust$65,00051%
The Aspen Institute Inc$60,00060%
Los Angeles Philharmonic Association$60,00060%
Los Angeles Mission Inc$55,00050%
International Rescue Committee INC$50,00050%
Aspen Art Museum$50,00050%
Council on Foreign Relations Inc$45,00060%
Heal the Bay$40,00050%
Los Angeles Fire Department Foundation$39,39350%
Independence Pass Foundation$35,00043%
Annunciation House Inc$30,0001n/a
Rainforest Foundation Inc$25,00040%
Team Rubicon Inc$25,00050%
Visible Figures$25,000119%
Rocky Mountain Institute$25,00040%
Clean Air Task Force Inc$20,00040%
Renegade Relief Foundation Inc$20,00012%
Environmental Defense Fund Incorporated$20,00040%
Conservation Colorado$20,00040%
Rector Wardens & Vestrymen of St Matthews Parish$15,0002n/a
Equal Justice Initiative$14,00040%
Denver Art Museum$13,00050%
American Friends of the Ocean Cleanup Foundation$10,0001n/a
The Wilderness Land Trust$10,00020%
The Library Foundation$10,00011%
Humanity in Action Inc$10,00013%
United States Fund for Unicef$10,00010%
St Jude Children's Research Hospital Inc$10,00020%
The Rape Foundation$8,00040%
Paddington Station Inc$6,00020%
Akron Foursquare Church$5,0001n/a
Information Technology and Innovation Foundation$5,00010%
Grades of Green Inc$5,00011%
Coalition for Rainforest Nations Secretariat$5,00010%
Los Angeles Regional Food Bank$5,00010%
World Central Kitchen Inc$5,00010%
Museum of Contemporary Art Denver$4,50040%
Denver Zoological Foundation$4,00040%
Colorado Ballet$4,00040%
Colorado Museum of Natural History$4,00040%
New York Common Pantry$2,00010%
Association of the Graduates of the United States Military Academy$2,00010%
Prospect Foundation Inc$2,00017%
The Everychild Foundation$1,00010%
Church of the Ascension$1,0001n/a

What it could do for these grantees

Plus 40 recipients with no EIN on record ($649k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Mesdag Family Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMusic Associates of Aspen Inc: $787,100 over 6y, 3.1% of budgetThe Trustees of Princeton University: $650,000 over 6y, 0.0% of budgetHarvard-Westlake School: $225,000 over 6y, 0.1% of budgetPacific Council on International Policy: $184,600 over 6y, 1.7% of budgetTheatre Aspen: $165,000 over 6y, 1.3% of budgetAspen Center for Environmental Studies: $130,100 over 6y, 0.5% of budgetThe Barack Obama Foundation: $105,600 over 2y, 0.0% of budgetColorado Academy: $80,000 over 4y, 0.1% of budgetInternational Medical Corps: $80,000 over 6y, 0.0% of budgetNorthwestern University: $75,000 over 6y, 0.0% of budgetAspen Valley Land Trust: $65,000 over 5y, 0.5% of budgetThe Aspen Institute Inc: $60,000 over 6y, 0.0% of budgetLos Angeles Philharmonic Association: $60,000 over 6y, 0.0% of budgetLos Angeles Mission Inc: $55,000 over 5y, 0.1% of budgetInternational Rescue Committee INC: $50,000 over 5y, 0.0% of budgetAspen Art Museum: $50,000 over 5y, 0.3% of budgetCouncil on Foreign Relations Inc: $45,000 over 6y, 0.0% of budgetHeal the Bay: $40,000 over 5y, 0.2% of budgetLos Angeles Fire Department Foundation: $39,393 over 5y, 0.2% of budgetIndependence Pass Foundation: $35,000 over 4y, 2.9% of budgetRainforest Foundation Inc: $25,000 over 4y, 0.1% of budgetTeam Rubicon Inc: $25,000 over 5y, 0.0% of budgetVisible Figures: $25,000 over 1y, 19% of budgetRocky Mountain Institute: $25,000 over 4y, 0.0% of budgetClean Air Task Force Inc: $20,000 over 4y, 0.0% of budgetRenegade Relief Foundation Inc: $20,000 over 1y, 2.3% of budgetEnvironmental Defense Fund Incorporated: $20,000 over 4y, 0.0% of budgetConservation Colorado: $20,000 over 4y, 0.3% of budgetEqual Justice Initiative: $14,000 over 4y, 0.0% of budgetDenver Art Museum: $13,000 over 5y, 0.0% of budgetThe Wilderness Land Trust: $10,000 over 2y, 0.2% of budgetThe Library Foundation: $10,000 over 1y, 0.8% of budgetHumanity in Action Inc: $10,000 over 1y, 2.8% of budgetUnited States Fund for Unicef: $10,000 over 1y, 0.0% of budgetSt Jude Children's Research Hospital Inc: $10,000 over 2y, 0.0% of budgetThe Rape Foundation: $8,000 over 4y, 0.1% of budgetPaddington Station Inc: $6,000 over 2y, 0.1% of budgetInformation Technology and Innovation Foundation: $5,000 over 1y, 0.1% of budgetGrades of Green Inc: $5,000 over 1y, 0.9% of budgetCoalition for Rainforest Nations Secretariat: $5,000 over 1y, 0.1% of budgetLos Angeles Regional Food Bank: $5,000 over 1y, 0.0% of budgetWorld Central Kitchen Inc: $5,000 over 1y, 0.0% of budgetMuseum of Contemporary Art Denver: $4,500 over 4y, 0.0% of budgetDenver Zoological Foundation: $4,000 over 4y, 0.0% of budgetColorado Ballet: $4,000 over 4y, 0.0% of budgetColorado Museum of Natural History: $4,000 over 4y, 0.0% of budgetNew York Common Pantry: $2,000 over 1y, 0.0% of budgetAssociation of the Graduates of the United States Military Academy: $2,000 over 1y, 0.0% 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 50.

Nonprofits that may fit its grantmaking

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.

Colorado Gives FoundationCO15.8× affinity6 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Colorado Gives Foundation · The Paula and William Bernstein Family Foundation · Aspen Community Foundation · The Ayco Charitable Foundation · National Philanthropic Trust · Morgan Stanley Global Impact Funding Trust Inc · American Endowment Foundation · Charities Aid Foundation America · The Blackbaud Giving Fund · Vanguard Charitable Endowment Program · Donor Advised Charitable Giving Inc · Paypal Charitable Giving Fund

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 Mesdag Family Foundation with peer funders

About The Mesdag Family Foundation

How much does The Mesdag Family Foundation give?
The Mesdag Family Foundation reported 46 grants totaling $810,200 in its FY2025 IRS filing. It funded between 20 and 53 organizations a year over FY2020 to FY2024.
What does The Mesdag Family Foundation fund?
By grant dollars over FY2020 to FY2025, its largest causes are Education (27%), Arts & Culture (25%), Environment (12%).
Who are The Mesdag Family Foundation's largest grantees?
By total granted over FY2020 to FY2025: Music Associates of Aspen Inc ($787k), The Trustees of Princeton University ($650k), Harvard-Westlake School ($225k).
Does The Mesdag Family Foundation fund new organizations?
In FY2024, 23% of the organizations it funded were first-time grantees.
Does The Mesdag Family Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as The Mesdag Family Foundation?
Its strongest co-funders, measured against what their size predicts, include Colorado Gives Foundation, The Paula and William Bernstein Family Foundation, Aspen Community Foundation.
Where is The Mesdag Family Foundation based?
The Mesdag Family Foundation is based in CA.

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 101 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

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