Grants for Nonprofits in Houston, Texas

A data-backed guide to Houston-area foundation funding, sourced directly from IRS 990-PF filings. Built for Harris County's 11+ 501(c)(3) organizations.

1,755
Houston-based foundations
$6.2B
Given to Houston nonprofits since 2015
105,788
Historical grants on file
$58,191
Average grant size

Houston holds one of the densest concentrations of philanthropic capital in the United States. The city is headquarters for more than 1,700 private foundations, anchored by some of the largest family and community funders in the South — Houston Endowment, the Kinder Foundation, the Brown Foundation, the Lester and Sue Smith Foundation, and the Dan L. Duncan Foundation — plus the Greater Houston Community Foundation, which channels donor-advised funding across the metro.

This funding landscape is shaped by Houston's distinct economic DNA: the largest medical complex in the world (the Texas Medical Center), a century of energy-industry wealth, one of the most ethnically diverse populations in the country, and a nonprofit sector built around Gulf Coast resilience after hurricanes, refugee resettlement, immigrant-serving organizations, and Historically Black Churches with deep community programming. The result is a philanthropic ecosystem that funds everything from hospital research to Buffalo Bayou restoration to grassroots education initiatives in the Third and Fifth Wards.

For a nonprofit based in Houston or serving Harris County, this density is an advantage — but also a discovery problem. There is no single directory that maps foundation giving patterns, deadlines, eligibility rules, and recent awards at the city level. GrantDrop matches your 501(c)(3) against every grant from Houston-based funders, statewide Texas funders, and national funders with a track record of giving to Houston-area nonprofits. Our data comes directly from IRS Form 990-PF filings, updated annually, so what you see reflects actual giving history — not marketing claims.

Largest Foundations Headquartered in Houston

Ranked by total assets on most recent IRS 990-PF filing. Click a foundation name to see its full profile — officers, giving history, application info, and average grant size.

Foundation Total assets Grants paid (year)
Michael & Susan Dell Foundation $2,069M $176M
The Moody Foundation $1,749M $86M
The Brown Foundation Inc $1,693M $89M
The Klarman Family Foundation $1,021M $108M
Nelda C and HJ Lutcher Stark Foundation $695M $1M

Top Funders Giving to Houston Nonprofits

Foundations (based anywhere) that have given the most dollars to Houston-area nonprofits since 2015. Internal discovery target — these funders statistically give to Houston, so a well-fit Houston nonprofit has elevated odds.

Funder # grants Total to Houston
Houston Endowment Inc (Dallas, TX) 1,898 $433M
Kinder Foundation (Houston, TX) 305 $361M
The Brown Foundation Inc (Houston, TX) 2,079 $321M
The Lester and Sue Smith Foundation (Houston, TX) 49 $282M
Dan L Duncan Foundation (Cedar Rapids, IA) 206 $185M

Notable Houston Grant Recipients

Top recipients by cumulative dollars received since 2015. Many are hospitals or universities; use this to gauge scale of giving, not as the benchmark for a small nonprofit's realistic ask.

Recipient # grants Total received
Texas Children'S Hospital 457 $275M
Baylor College of Medicine 615 $211M
Rice University 592 $166M
William Marsh Rice University 430 $150M
Buffalo Bayou Partnership 158 $119M

Frequently Asked Questions

What grants are available for nonprofits in Houston?
Nonprofits in Houston can apply for grants from 1,755 Houston-based private foundations plus hundreds of statewide Texas funders and national foundations with a history of giving to Houston. Since 2015, Houston nonprofits have received 105,788 grants totaling $6,155 million, per IRS Form 990-PF filings.
Which is the largest foundation in Houston?
Michael & Susan Dell Foundation holds the largest asset base among Houston-based foundations in our data, at approximately $2,069 million in total assets. The top five Houston foundations by assets: Michael & Susan Dell Foundation, The Moody Foundation, The Brown Foundation Inc, The Klarman Family Foundation, Nelda C And Hj Lutcher Stark Foundation.
What is the average grant size for Houston nonprofits?
The average grant awarded to a Houston nonprofit is $58,191, based on 105,788 historical grants. Awards range from small community program grants under $5,000 to multi-million-dollar institutional grants for hospitals and universities. For a small-to-mid-size nonprofit, the realistic request range is typically $5,000–$75,000.
Who are the top funders giving to Houston nonprofits?
The top five funders by total dollars given to Houston: Houston Endowment Inc, Kinder Foundation, The Brown Foundation Inc, The Lester And Sue Smith Foundation, Dan L Duncan Foundation. Each has made hundreds to thousands of grants to Houston-area organizations. See their full profiles via the table above.
How do I find grants my Houston nonprofit qualifies for?
GrantDrop matches your 501(c)(3) against every relevant grant from Houston-based foundations, statewide Texas funders, and national funders with a track record of giving to Houston. Enter your EIN, confirm your mission and focus area, and see a ranked list of your best-fit grants in minutes. Start free.

Related Houston Funding Resources

Grants in Harris County, Texas
Broader view covering all of Harris County
All Texas Funders
Statewide Texas foundation directory
Healthcare Grants in Texas
Major category for Houston given TMC presence
Human Services Grants in Texas
Food banks, shelters, family services

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