Skip to content

Kentucky · Private foundation

Mark and Martha Slaughter Family Foundation Inc

THE FOUNDATION WAS FORMED TO PROMOTE AND SUPPORT CARDIOVASCULAR AND THORACIC SURGERY EDUCATION ALONG WITH CLINICAL AND BASIC SCIENCE RESEARCH FOR PHYSICIANS, SCIENTISTS, NURSES AND OTHER MEDICAL PERSONNEL. Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own…

$17k
Granted FY2025(still arriving)
5
Grants FY2025
7
Organizations funded FY2024
71%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$5,000
Largest grant, FY2025
$5,000
Organizations funded a year
2 to 7
FY2023 to FY2024
States reached, FY2025
3
Total assets, FY2025
$481k
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 71% of the organizations Mark and Martha Slaughter Family Foundation Inc funded were first-time grantees, receiving 65% of its grant dollars.

The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving5$17k40%
FY20247$21k71%
FY20232$11kn/a
100% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2023 to 2025.

Health$16kArts & Culture$14kEnvironment$11kScience & Tech$5kRecreation & Sports$2kPhilanthropy$1kEducation$1k

Top grantees

Largest recipients by total granted, FY2023 to FY2025, and the share of each one’s budget the grants supplied at peak.

Where it is load-bearing

Each grantee by its size and the share of its budget Mark and Martha Slaughter Family Foundation Inc supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetSpeed Art Museum: $12,400 over 2y, 0.1% of budgetIsaac W Bernheim Foundation: $11,000 over 3y, 0.1% of budgetIshlt Foundation: $10,000 over 2y, 0.3% of budgetAmerican Heart Association Inc: $6,000 over 2y, 0.0% of budgetPurdue Research Foundation: $5,000 over 1y, 0.0% of budgetKentucky Horse Park Foundation Inc: $1,500 over 1y, 0.1% of budgetKmac Museum: $1,500 over 1y, 0.1% of budgetLouisville Collegiate School: $1,000 over 1y, 0.0% of budgetImpact100 Louisville Inc: $1,000 over 1y, 0.1% 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.

Klig Charitable TrustKY13.6× affinity4 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Klig Charitable Trust · Kindred Foundation Inc · Sociable Weaver Foundation Inc · W L Lyons Brown Foundation · Snowy Owl Foundation Inc · The Community Foundation of Louisville Depository Inc · The Community Foundation of Louisville Inc · Baird Foundation Inc · National Philanthropic Trust · American Online Giving Foundation Inc · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc

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 Mark and Martha Slaughter Family Foundation Inc with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Mark and Martha Slaughter Family Foundation Inc?

Find your warmest path to Mark and Martha Slaughter Family Foundation Inc 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.

About Mark and Martha Slaughter Family Foundation Inc

How much does Mark and Martha Slaughter Family Foundation Inc give?
Mark and Martha Slaughter Family Foundation Inc reported 5 grants totaling $17,000 in its FY2025 IRS filing. It funded between 2 and 7 organizations a year over FY2023 to FY2024.
What does Mark and Martha Slaughter Family Foundation Inc fund?
By grant dollars over FY2023 to FY2025, its largest causes are Health (32%), Arts & Culture (28%), Environment (22%).
Who are Mark and Martha Slaughter Family Foundation Inc's largest grantees?
By total granted over FY2023 to FY2025: Speed Art Museum ($12k), Isaac W Bernheim Foundation ($11k), Ishlt Foundation ($10k).
Does Mark and Martha Slaughter Family Foundation Inc fund new organizations?
In FY2024, 71% of the organizations it funded were first-time grantees.
Does Mark and Martha Slaughter Family Foundation Inc 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 Mark and Martha Slaughter Family Foundation Inc?
Its strongest co-funders, measured against what their size predicts, include Klig Charitable Trust, Kindred Foundation Inc, Sociable Weaver Foundation Inc.
Where is Mark and Martha Slaughter Family Foundation Inc based?
Mark and Martha Slaughter Family Foundation Inc is based in KY.

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 9 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 Mark and Martha Slaughter Family’s filings →

More from the funding graph