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Christy and John Mack Foundation at a glance

· Private foundation

Christy and John 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.

$3.9M
Granted FY2025still arriving
4
Grants FY2025still arriving
4
States reached
$3.0M
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
01100% classified

What it funded, over time

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

Health$18MPhilanthropy$3.1MInternational$2.5MYouth Development$2.0MPublic Safety & Disaster$1.8MEducation$1.1MArts & Culture$225kEnvironment$165kOther$0
02FY2025 · 4 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • $10k–50k1 grant · $20k
  • $250k+3 grants · $3.9M
$582,000
Median grant
4
States reached
$2.3M
Total assets
Largest grants
RecipientAmount
HEALTHY US COLLABORATIVE INC$3,030,000
MICROSOCIETY INC$582,000
FAIR PLAY$250,000
SEA CORPS MARITIME GROUP$20,000
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 (FY21–22, $65k) land where the poverty rate runs at 17%, against an area that typically sits at 13%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.

area typical 13%HIP HOP PUBLIC HEALTH: $15k → 17%ENCOURAGE KIDS FOUNDATION: $50k → 17%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

MN
IL
NY
MA
PA
CA
KY
VA
NC
SC
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.
04

Where the work is directed

The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.

About 11% of Christy and John Mack Foundation’s grant dollars are earmarked for a different county than the recipient’s own address. By recipient address, 22% of the giving stays in NY; by stated purpose, 15%.

Christy and John Mack Foundationlessmore of its giving
Placed by recipient address · 6.9% directed abroad (not shown)
How this is measured
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the funder’s own 990 grant descriptions.
03Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

92%of every dollar goes to organizations it has funded before.
$24M · 10 repeat orgs$2.1M to everyone else

Grantees it renews have grown median revenue +31% since the first grant, against -3% for those funded once.

10 repeat relationships: 2 still active in FY2025, 8 since wound down; 2 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

10
18

Total granted

$24M
$1.8M

Median revenue growth · since first grant

+31%
-3%

Still filing today

90%
39%

New vs renewed · share of each year

In FY2025, 93% of grant dollars renewed an existing relationship; $270k went to new ones.

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

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

’20’21’22’23’24’25
EducationHealthHuman ServicesCrime & LegalPublic Safety & DisasterCommunity ImprovementOther
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

  • TH
    THE HEALTHY US COLLABORATIVE INC
    6× · 2020–2025 · $13M · revenue +31% · 100% of their budget
  • IR
    International Rescue Committee INC
    2× · 2021–2022 · $2.5M · revenue +38%
  • MI
    MICROSOCIETY INC
    6× · 2020–2025 · $1.7M · revenue +167% · 39% of their budget

Funded once

  • CM
    CHARLES M VALLEE FOUNDATION
    one grant, 2022 · $1.0M
  • FC
    FIDELITY CHARITABLE GIFT FUND - PETRA FUND
    one grant, 2021 · $100k
  • FC
    FIDELITY CHARITABLE GIFT FUND - MACK SCHAEFER CHARITABLE FUND
    one grant, 2021 · $100k
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
New York Genome Center Inc

Operate a state-of-the-art, world-class genomic research center that creates and uses advanced genomics to understand the genetic basis of disease. for more information, see schedule o.

Health
2
New York Hall of Science

Nysci's mission is to nurture generations of passionate learners, critical thinkers, and active citizens through design make play - an approach to learning and engagement that is deeply rooted in research on stem learning and guides the…

Arts & Culture
3
Project Drawdown

Project drawdown's mission is to drive meaningful climate action by advancing science-based solutions and strategies. project drawdown's work is focused on three pillars: science - advancing science-based climate solutions and strategies;…

Education
4
Council On Foreign Relations Inc

The council on foreign relations (cfr) is an independent, nonpartisan membership organization, think tank, and publisher dedicated to being a resource for its members, government officials, business executives, journalists, educators and…

International
5
New York University

Nyu is a private university with approximately 60,000 matriculating students in 20 schools and institutes. nyu's primary missions are education, research and scholarship, and patient care.

Education
6
Massachusetts Institute of Technology

The mission of mit is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century.

Education
7
Endeavor Global Inc (F/K/a the Endeavor Initiative Inc)

Endeavor is leading the high-impact entrepreneurship movement around the world.

International
8
Chief Executives for Corporate Purpose Inc

Chief executives for corporate purpose (cecp) is the only business counsel and network dedicated to driving measurable returns on purpose. we promote responsible purpose-driven business as it increases customer loyalty, builds employee…

Philanthropy
9
Open Markets Institute

The open markets institute works to help people relearn how to use competition policy to build stronger democracies, more just and equitable societies, more innovative and sustainable economies, and a more secure and peaceful world.

Education
10
Manhattanville University

To educate students to be ethical and socially responsible leaders in a global community.

Education
11
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…

—
12
The Poptech Institute

Poptech's mission is to accelerate the positive impact of world-changing people, projects and ideas. founded in 1996 by bob metcalfe (inventor, ethernet) and john sculley (apple, pepsi), poptech originally provided a forum to critically…

Education
How this is measured
The grantee most central to the portfolio’s shape is New York Cares Inc; the most unlike its peers is The Healthy Us Collaborative Inc. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
05the grantee network

20 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. 20 of the 33 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)
1
Early backer (in before they grew)
20/20
Grantees still filing
12/20
Grew since first funded

Where the money sits, by cause and then by grantee

THE HEALTHY US COLLABORATIVE INC: $13,450,000 · HealthTHE HEALTHY US COLLABORATIVE INC+1 more: $35,000 · HealthNY PRESBYTERIAN HOSPITAL: $4,000,000 · OtherNY PRESBYTERIAN HOSPITALCHARLES M VALLEE FOUNDATION: $1,000,000 · OtherCHARLES M VALLEE FOUNDATI…FAIRPLAY INC: $250,000 · Other+18 more: $1,170,000 · Other+18 moreInternational Rescue Committee INC: $2,525,000 · InternationalInternati…THE GIVING BACK FUND: $2,500,000 · PhilanthropyTHE GIVIN…+2 more: $15,000 · PhilanthropyMICROSOCIETY INC: $1,654,000 · Education+2 more: $60,000 · EducationNEW YORK CITY POLICE FOUNDATION INC: $1,560,000 · Crime & LegalFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $300,000 · Community ImprovementTHIRD SECTOR NEW ENGLAND INC: $125,000 · Community Improvement
Health$13,485,000Other$6,420,000International$2,525,000Philanthropy$2,515,000Education$1,714,000Crime & Legal$1,560,000Community Improvement$425,000

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

25%50%75%100%$10M$100Mgrantee revenue →↑ funder's share of their budgetTHE HEALTHY US COLLABORATIVE INC: $13,450,000 over 6y, 100% of budgetInternational Rescue Committee INC: $2,525,000 over 2y, 0.2% of budgetTHE GIVING BACK FUND: $2,500,000 over 2y, 5.3% of budgetMICROSOCIETY INC: $1,654,000 over 6y, 39% of budgetNEW YORK CITY POLICE FOUNDATION INC: $1,560,000 over 3y, 9.5% of budgetFIDELITY INVESTMENTS CHARITABLE GIFT FUND: $300,000 over 1y, 0.0% of budgetFAIRPLAY INC: $250,000 over 1y, 5.7% of budgetFDNY FOUNDATION INC: $210,000 over 3y, 1.3% of budgetTHIRD SECTOR NEW ENGLAND INC: $125,000 over 2y, 0.1% of budgetCENTRAL PARK CONSERVANCY INC: $100,000 over 4y, 0.0% of budgetTHE EXPLORERS CLUB: $75,000 over 2y, 0.7% of budgetENCOURAGE KIDS FOUNDATION: $50,000 over 1y, 2.3% of budgetMARINE CORPS SCHOLARSHIP FOUNDATION INC: $50,000 over 1y, 0.1% of budgetHEALTHCORPS INC: $35,000 over 2y, 0.5% of budgetSESAME WORKSHOP: $25,000 over 1y, 0.0% of budgetHIP HOP Public Health Inc: $15,000 over 1y, 0.5% of budgetDUKE UNIVERSITY: $10,000 over 1y, 0.0% of budgetNORTH CAROLINA COASTAL LAND TRUST: $10,000 over 1y, 0.2% of budgetENTERTAINMENT INDUSTRY FOUNDATION: $10,000 over 1y, 0.0% of budgetNEW YORK CARES INC: $5,000 over 1y, 0.1% 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.

Morgan Stanley Global…American Online Givin…Donor Advised Charita…Fidelity Investments …Amazonsmile Foundation
Morgan Stanley Global Impact Funding Trust IncIN8.2× affinity4 shared granteesties to 4 of 4Hover any node to trace its alignments.Compare side by side →

Open a dossier: Morgan Stanley Global Impact Funding Trust Inc · 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 Christy and John Mack Foundation funds: left to right is the share of its income from government, bottom to top the share from Christy and John Mack Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 30%6%25%56%100%funder's share of their income ↑0%13%25%38%50%share of the org’s income from government →median 3%
  • Third Sector New England Inc: 3% of income from government
no gov moneyreceives it· size = income
3get no government money at all
2report government grants on their 990 we could not trace to a source (not plotted)
0rely on government for over half their income
⤢ axis zoomed · 0–50%
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 33 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 Christy and John 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