Skip to content

Texas · Private foundation

Diana and Harry W Hamilton Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$28k
Granted FY2025(still arriving)
10
Grants FY2025
11
Organizations funded FY2024
18%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$2,500
Largest grant, FY2025
$5,000
Organizations funded a year
9 to 12
FY2018 to FY2024
States reached, FY2025
2
Total assets, FY2025
$456k
Applications
Takes unsolicited applications
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 18% of the organizations Diana and Harry W Hamilton Foundation funded were first-time grantees, receiving 7% of its grant dollars.

New vs renewed · share of each year

In FY2024, 93% of grant dollars renewed an existing relationship; $2k went to new ones.

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

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

’18’19’20’21’22’23’24
Human ServicesEnvironmentRecreation & SportsCrime & LegalEducationInternationalOther
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 arriving10$28k30%
FY202411$27k18%
FY20239$25k33%
FY202212$25k33%
FY202110$23k20%
FY202010$21k20%
FY201911$26k45%
FY20189$21k44%
100% classified

What it funded, over time

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

Health$80kEducation$49kReligion$24kAnimals$16kHuman Services$13kPublic Safety & Disaster$10kFood & Nutrition$7kPhilanthropy$6kOther$0

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

GranteeTotal grantedYearsShare of their budget
Sinton Independent School District$45,0009n/a
Incarnate Word Academy$17,5008n/a
Rob & Bessie Welder Wildlife Foundation$11,00030%
Halo Flight Inc$9,00060%
United Way of the Coastal Bend Inc$6,00020%
The Salvation Army$5,0001n/a
Rob & Bessie Welder Wildlife Conservation Foundation$5,00041%
Mission of Mercy Inc$5,00050%
Sacred Heart Catholic Church$4,0003n/a
Sinton for Youth Corporation$3,50046%
Show all 25 grantees
All grantees of Diana and Harry W Hamilton Foundation by total granted
GranteeTotal grantedYearsShare of their budget
Sinton Independent School District$45,0009n/a
Incarnate Word Academy$17,5008n/a
Rob & Bessie Welder Wildlife Foundation$11,00030%
Halo Flight Inc$9,00060%
United Way of the Coastal Bend Inc$6,00020%
The Salvation Army$5,0001n/a
Rob & Bessie Welder Wildlife Conservation Foundation$5,00041%
Mission of Mercy Inc$5,00050%
Sacred Heart Catholic Church$4,0003n/a
Sinton for Youth Corporation$3,50046%
Catholic Charities of Corpus Christi Inc$3,00010%
Hawaii State Teachers Association$2,80010%
West Side Helping Hand$2,50030%
Children's Advocacy Center of the Coastal Bend$2,50020%
Stephen Siller Tunnel to Towers Foundation$2,00020%
Wounded Warrior Project Inc$2,00020%
Search One Rescue Team$2,00022%
Foster Angels of South Texas Foundation$2,00020%
Children In Need Inc$1,00011%
St Pius X Catholic School$1,0001n/a
Grace Lake Ministries$1,00011%
Corpus Christi Police Foundation$1,00010%
Corpus Christi Metro Ministriesinc$1,00010%
Holy Spirit Catholic School$1,0001n/a
Good Samaritan Rescue Mission$50010%

What it could do for these grantees

Plus 9 recipients with no EIN on record ($78k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget Diana and Harry W Hamilton Foundation supplied at peak.

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetRob & Bessie Welder Wildlife Foundation: $11,000 over 3y, 0.2% of budgetHalo Flight Inc: $9,000 over 6y, 0.0% of budgetUnited Way of the Coastal Bend Inc: $6,000 over 2y, 0.1% of budgetRob & Bessie Welder Wildlife Conservation Foundation: $5,000 over 4y, 1.1% of budgetMission of Mercy Inc: $5,000 over 5y, 0.0% of budgetSinton for Youth Corporation: $3,500 over 4y, 6.3% of budgetCatholic Charities of Corpus Christi Inc: $3,000 over 1y, 0.2% of budgetHawaii State Teachers Association: $2,800 over 1y, 0.0% of budgetWest Side Helping Hand: $2,500 over 3y, 0.3% of budgetChildren's Advocacy Center of the Coastal Bend: $2,500 over 2y, 0.1% of budgetStephen Siller Tunnel to Towers Foundation: $2,000 over 2y, 0.0% of budgetWounded Warrior Project Inc: $2,000 over 2y, 0.0% of budgetSearch One Rescue Team: $2,000 over 2y, 2.3% of budgetFoster Angels of South Texas Foundation: $2,000 over 2y, 0.1% of budgetChildren In Need Inc: $1,000 over 1y, 1.3% of budgetGrace Lake Ministries: $1,000 over 1y, 0.6% of budgetCorpus Christi Police Foundation: $1,000 over 1y, 0.4% of budgetCorpus Christi Metro Ministriesinc: $1,000 over 1y, 0.1% of budgetGood Samaritan Rescue Mission: $500 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 19.

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.

Behmann Brothers FoundationTX26.2× affinity10 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Behmann Brothers Foundation · Ed Rachal Foundation · Coastal Bend Community Foundation · The John G and Marie Stella Kenedy Memorial Foundation · United Way of the Coastal Bend Inc · Susser Family Foundation · James R Dougherty Jr Foundation Inc · Gil and Dody Weaver Foundation · American Electric Power Foundation · Brush Country Services Inc · Laverne & Thomas Howell Foundation · Devary Durrill Foundation 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 Diana and Harry W Hamilton Foundation with peer funders

Warm introductions · Powered by PlinthPlus

How do I get to Diana and Harry W Hamilton Foundation?

Find your warmest path to Diana and Harry W Hamilton Foundation 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 Diana and Harry W Hamilton Foundation

How much does Diana and Harry W Hamilton Foundation give?
Diana and Harry W Hamilton Foundation reported 10 grants totaling $27,500 in its FY2025 IRS filing. It funded between 9 and 12 organizations a year over FY2018 to FY2024.
What does Diana and Harry W Hamilton Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Health (37%), Education (23%), Religion (11%).
Who are Diana and Harry W Hamilton Foundation's largest grantees?
By total granted over FY2017 to FY2025: Sinton Independent School District ($45k), Incarnate Word Academy ($18k), Rob & Bessie Welder Wildlife Foundation ($11k).
Does Diana and Harry W Hamilton Foundation fund new organizations?
In FY2024, 18% of the organizations it funded were first-time grantees.
Does Diana and Harry W Hamilton Foundation accept unsolicited applications?
Its most recent filing reports that it accepts unsolicited grant applications.
Which funders back the same organizations as Diana and Harry W Hamilton Foundation?
Its strongest co-funders, measured against what their size predicts, include Behmann Brothers Foundation, Ed Rachal Foundation, Coastal Bend Community Foundation.
Where is Diana and Harry W Hamilton Foundation based?
Diana and Harry W Hamilton Foundation 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 34 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 Diana and Harry W Hamilton’s filings →

More from the funding graph