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Texas · Private foundation

Tom and Carolyn Hamilton Family Fdn

Its FY2026 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$209k
Granted FY2026(still arriving)
17
Grants FY2026
15
Organizations funded FY2023
13%
First-time grantees FY2023
Read the full brief
Median grant, FY2026
$5,000
Largest grant, FY2026
$100,000
Organizations funded a year
10 to 19
FY2017 to FY2023
States reached, FY2026
10
Total assets, FY2026
$3.6M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2023, 13% of the organizations Tom and Carolyn Hamilton Family Fdn funded were first-time grantees, receiving 7% of its grant dollars.

New vs renewed · share of each year

In FY2023, 93% of grant dollars renewed an existing relationship; $13k went to new ones.

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

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

’18’19’20’21’22’23
Public BenefitHealthScience & TechEnvironmentOther
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
FY2026still arriving16$207k6%
FY202315$196k13%
FY202216$202k6%
FY202111$172k0%
FY202019$163k5%
FY201918$142k22%
FY201814$126k50%
FY201710$673kn/a
98% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2023.

Education$1.1MHealth$330kScience & Tech$54kRecreation & Sports$40kArts & Culture$38kPublic Benefit$25kReligion$20kPhilanthropy$19kOther$0

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

ND
IL
MI
NY
OH
VA
SC
DC
OK
LA
TX

Top grantees

Largest recipients by total granted, FY2017 to FY2026, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Capital University$690,75051%
International Center for Clubhouse Development Inc$83,50081%
NAMI National$77,50070%
Nami Greater Houston$68,00062%
Seg Foundation$55,25073%
Huntington's Disease Society of America Inc$24,50020%
Rainsboro United Methodist Church$22,5006n/a
The Heritage Foundation$19,00050%
The Heartland Institute$12,50050%
United Way of Greater Houston$10,00010%
Show all 13 grantees
All grantees of Tom and Carolyn Hamilton Family Fdn by total granted
GranteeTotal grantedYearsShare of their budget
Capital University$690,75051%
International Center for Clubhouse Development Inc$83,50081%
NAMI National$77,50070%
Nami Greater Houston$68,00062%
Seg Foundation$55,25073%
Huntington's Disease Society of America Inc$24,50020%
Rainsboro United Methodist Church$22,5006n/a
The Heritage Foundation$19,00050%
The Heartland Institute$12,50050%
United Way of Greater Houston$10,00010%
Mental Health America of Greater Houston Inc$7,50010%
Science and Environmental Policy Project$5,50023%
American Geosciences Institute$1,00010%

What it could do for these grantees

Plus 13 recipients with no EIN on record ($803k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Tom and Carolyn Hamilton Family Fdn supplied at peak.

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetCapital University: $690,750 over 5y, 0.5% of budgetInternational Center for Clubhouse Development Inc: $83,500 over 8y, 0.8% of budgetNAMI National: $77,500 over 7y, 0.1% of budgetNami Greater Houston: $68,000 over 6y, 1.9% of budgetSeg Foundation: $55,250 over 7y, 3.0% of budgetHuntington's Disease Society of America Inc: $24,500 over 2y, 0.1% of budgetThe Heritage Foundation: $19,000 over 5y, 0.0% of budgetThe Heartland Institute: $12,500 over 5y, 0.1% of budgetUnited Way of Greater Houston: $10,000 over 1y, 0.0% of budgetMental Health America of Greater Houston Inc: $7,500 over 1y, 0.2% of budgetScience and Environmental Policy Project: $5,500 over 2y, 2.6% of budgetAmerican Geosciences Institute: $1,000 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 12.

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.

Shell USA Company FoundationTX12.3× affinity4 shared granteesties to 2 of 2Hover any node to trace its alignments.Compare side by side →

Open a dossier: Shell USA Company Foundation · 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 Tom and Carolyn Hamilton Family Fdn with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Tom and Carolyn Hamilton Family Fdn?

Find your warmest path to Tom and Carolyn Hamilton Family Fdn 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 Tom and Carolyn Hamilton Family Fdn

How much does Tom and Carolyn Hamilton Family Fdn give?
Tom and Carolyn Hamilton Family Fdn reported 17 grants totaling $209,250 in its FY2026 IRS filing. It funded between 10 and 19 organizations a year over FY2017 to FY2023.
What does Tom and Carolyn Hamilton Family Fdn fund?
By grant dollars over FY2017 to FY2026, its largest causes are Education (68%), Health (20%), Science & Tech (3%).
Who are Tom and Carolyn Hamilton Family Fdn's largest grantees?
By total granted over FY2017 to FY2026: Capital University ($691k), International Center for Clubhouse Development Inc ($84k), NAMI National ($78k).
Does Tom and Carolyn Hamilton Family Fdn fund new organizations?
In FY2023, 13% of the organizations it funded were first-time grantees.
Does Tom and Carolyn Hamilton Family Fdn 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 Tom and Carolyn Hamilton Family Fdn?
Its strongest co-funders, measured against what their size predicts, include Shell USA Company Foundation, Fidelity Investments Charitable Gift Fund, Amazonsmile Foundation.
Where is Tom and Carolyn Hamilton Family Fdn based?
Tom and Carolyn Hamilton Family Fdn is based in TX.

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 27 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 2026, released 2026. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Source object · view filing

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