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Mack Foundation at a glance

· Private foundation

Mack 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.

$314k
Granted FY2025still arriving
9
Grants FY2025still arriving
5
States reached
$115k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0198% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2025.

Arts & Culture$400kEducation$365kPhilanthropy$226kHealth$100kHuman Services$36kPublic Safety & Disaster$25kHousing & Shelter$25kReligion$18kOther$0
02FY2025 · 9 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k1 grant · $3k
  • $10k–50k5 grants · $96k
  • $50k–250k3 grants · $215k
$25,000
Median grant
5
States reached
$1.9M
Total assets
Largest grants
RecipientAmount
NORWICH UNIVERSITY$115,000
MUSIC CENTER OF THE NORTHWEST$50,000
CHRISTIAN BROTHERS FOUNDATION$50,000
ONE CALL FOR ALL$41,000
RHF FOUNDATION$25,000
HELPLINE HOUSE$10,000
ST CECILIA PARISH$10,000
THE UCLA FOUNDATION$10,000
SEATTLE UNION MISSION$3,000
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 (FY18–25, $60k) land where the poverty rate runs at 11%, against an area that typically sits at 11%. 42% of those dollars go to grantees based in above-average-need neighborhoods. Its grants spread fairly evenly across need levels.

area typical 11%HELPLINE HOUSE: $25k → 9%LOS ANGELES POLICE FOUNDATION: $25k → 14%HELPLINE HOUSE: $10k → 10%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

VT
WA
NY
NJ
CT
CA
VA
NC
HI
LA
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.

83%of every dollar goes to organizations it has funded before.
$991k · 7 repeat orgs$201k to everyone else

7 repeat relationships: 5 still active in FY2025, 2 since wound down; 3 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

7
8

Total granted

$991k
$138k

Median revenue growth · since first grant

+37%
+120%

Still filing today

86%
50%

New vs renewed · share of each year

In FY2025, 79% of grant dollars renewed an existing relationship; $63k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
Human ServicesEducationHousing & ShelterFood & NutritionPublic BenefitPhilanthropyOther
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

  • NU
    Norwich University
    6× · 2019–2025 · $305k · revenue +8%
  • OC
    ONE CALL FOR ALL
    2× · 2021–2025 · $72k · revenue +3%
  • TR
    THE RICK HERREMA FOUNDATION INC
    2× · 2018–2019 · $50k · revenue +87%

Funded once

  • MS
    MEMORIAL SLOAN KETTERING CANCER
    one grant, 2023 · $50k
  • NC
    NATIONAL COAST GUARD MUSEUM ASSOCIATION INC
    one grant, 2024 · $25k · revenue 0%
  • LA
    LOS ANGELES POLICE FOUNDATIONgraduated
    one grant, 2018 · $25k · revenue +30%
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
Us Naval Academy Foundation Inc

To support, promote, and advance the mission of the naval academy.

Education
2
Marine Corps Association Foundation

To provide resources and support to sustain and expand programs and activities essential to the marine corps association's (mca) mission by engaging everyone inspired by the marine corps.

Arts & Culture
3
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.

—
4
Florida Gulf Coast University Foundation Inc

To advance florida gulf coast university and its students by promoting the institution, securing philanthropy to support the needs of the university, managing and administering assets with a long term perspective, and providing resources…

Education
5
Marine Corps Association

The mission of the marine corps association (mca) is to support the marine corps by disseminating knowledge of military art and science among marines, provide opportunities for professional development for marines, and to foster the spirit…

—
6
Uc Santa Barbara Foundation

The uc santa barbara foundation actively works to further the goals of the university of california, santa barbara. the foundation seeks to maintain and nurture the university's quality and distinction. on behalf of the campus, the…

Education
7
Naval Postgraduate School Foundation Inc

Our mission is to support the naval postgraduate school by providing funding and programmatic support for education, research, technology development, institutional initiatives, and community programs that advance national security and…

Education
8
Fire Family Foundation

The mission of the fire family foundation is to provide support and financial assistance to firefighters and their families in times of need.

Public Safety & Disaster
9
Uso Foundation

The mission of the uso foundation (foundation) is to support uso inc.'s (uso) mission to strengthen the well-being of the people serving in america's military and their families.

—
10
Naval War College Foundation Inc

Help the naval war college to: a. develop strategic and operational leaders: provide professional military education programs that are current, rigorous, relevant, and accessible to the maximum number of qualified u.s. officers and navy…

Education
11
Hawaii Public Radio

The mission of hawai'i public radio is to serve the people of hawai'i by informing with essential news, inspiring through the power of music and the arts, and connecting through conversations and convenings.

—
12
Lanakila Pacific Foundation

Facilitate charitable fundraising and related activities for the benefit of promoting and carrying out the purposes of lanakila pacific.

Human Services
How this is measured
The grantee most central to the portfolio’s shape is National Coast Guard Museum Association Inc; the most unlike its peers is Music Center of the Northwest. 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

12 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. 12 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.

0
Load-bearing (≥25% of a budget)
3
Early backer (in before they grew)
12/12
Grantees still filing
8/12
Grew since first funded

Where the money sits, by cause and then by grantee

Music Center of the Northwest: $350,000 · OtherMusic Center of the NorthwestRHF FOUNDATION: $153,500 · OtherRHF FOUNDATIONMEMORIAL SLOAN KETTERING CANCER: $50,000 · OtherMEMORIAL SLOAN KETTERING CANCERCHRISTIAN BROTHERS FOUNDATION INC CHRISTIAN BROTHERS SCHOOL: $50,000 · OtherCHRISTIAN BROTHERS FOUNDATION INC CHRISTIAN BROTHERS SCHOOLNATIONAL MUSEUM OF THE US ARMY: $25,000 · Other+6 more: $25,500 · OtherNorwich University: $305,102 · EducationNorwich University+1 more: $10,000 · EducationONE CALL FOR ALL: $72,000 · PhilanthropyHELPLINE HOUSE: $35,000 · Human ServicesLOS ANGELES POLICE FOUNDATION: $25,000 · Human ServicesTHE RICK HERREMA FOUNDATION INC: $50,000 · HealthNATIONAL COAST GUARD MUSEUM ASSOCIATION INC: $25,000 · Arts & CultureFAMILY PROMISE OF BREVARD INC: $25,000 · Housing & Shelter
Other$654,000Education$315,102Philanthropy$72,000Human Services$60,000Health$50,000Arts & Culture$25,000Housing & Shelter$25,000

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

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetMusic Center of the Northwest: $350,000 over 6y, 4.0% of budgetNorwich University: $305,102 over 6y, 0.1% of budgetONE CALL FOR ALL: $72,000 over 2y, 1.1% of budgetTHE RICK HERREMA FOUNDATION INC: $50,000 over 2y, 2.6% of budgetCHRISTIAN BROTHERS FOUNDATION INC CHRISTIAN BROTHERS SCHOOL: $50,000 over 1y, 5.4% of budgetHELPLINE HOUSE: $35,000 over 2y, 0.6% of budgetNATIONAL COAST GUARD MUSEUM ASSOCIATION INC: $25,000 over 1y, 0.1% of budgetLOS ANGELES POLICE FOUNDATION: $25,000 over 1y, 0.4% of budgetFAMILY PROMISE OF BREVARD INC: $25,000 over 4y, 0.9% of budgetUCLA FOUNDATION: $10,000 over 1y, 0.0% of budgetMAUI FOOD BANK INC: $2,000 over 1y, 0.0% of budgetFRIENDS OF VETERANS: $500 over 1y, 0.4% 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.

The Bank of America C…Morgan Stanley Global…Vanguard Charitable E…National Philanthropi…American Online Givin…Fidelity Investments …Donor Advised Charita…Amazonsmile Foundation
The Bank of America Charitable Foundation IncNC11.6× affinity7 shared granteesties to 7 of 7Hover any node to trace its alignments.Compare side by side →

Open a dossier: The Bank of America Charitable Foundation Inc · Morgan Stanley Global Impact Funding Trust Inc · Vanguard Charitable Endowment Program · National Philanthropic Trust · 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 Mack Foundation funds: left to right is the share of its income from government, bottom to top the share from Mack Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 10%1%3%6%10%funder's share of their income ↑0%25%50%75%100%share of the org’s income from government →median 4%
  • Norwich University: 4% of income from government
  • National Coast Guard Museum Association Inc: 1% of income from government
no gov moneyreceives it· size = income
1get no government money at all
4report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
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 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

Play a game based on Mack’s 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