Foundations · IRS 990 filings

Foundations in Houston, Texas

989
foundations with a Houston address
$1.98B
grants paid, FY2023–FY2025
216
say they accept unsolicited
$9,750
median grant

Grantlas lists 989 foundations that gave a Houston, Texas address on their tax filing — 937 private foundations and 52 grantmaking charities such as community foundations and United Ways — from filings for FY2023–FY2025. Together they paid out $1.98 billion in grants in their latest filing year, and 216 of them (22%) say they accept unsolicited requests.

Not every foundation here is a Houston foundation. The city is the mailing address on the foundation’s tax filing, and when a bank or a law firm runs the trust that is the bank’s address, not the place it gives to. Check where a foundation gives before you write.

Top 25 of 989 foundations

All 25 foundations below say on their 990-PF that they accept unsolicited requests. Another 191 in this list say so too. Ranked by what they paid in grants in their latest filing.

Foundations in Houston, Texas
The Sarofim Foundation$150,000$105.2M$2,500–$8MFY2024Locked: fit score and contacts
Houston Endowment Inc$125,000$99.6M$500–$5MFY2024Locked: fit score and contacts
The Brown Foundation Inc$50,000$84.3M$20,000–$11MFY2024Locked: fit score and contacts
The Robert A Welch Foundation$105,000$38.3M$25,000–$10MFY2024Locked: fit score and contacts
Stoller Foundation$28,250$32.6M$16–$5MFY2024Locked: fit score and contacts
John P McGovern Foundation$20,000$23.6M$500–$10MFY2024Locked: fit score and contacts
Jerold B Katz Foundation$350,000$21.3M$20,000–$6.5MFY2024Locked: fit score and contacts
The Powell Foundation$15,500$20.4M$50–$1.5MFY2025Locked: fit score and contacts
The Cullen Foundation$175,000$17.9M$40,000–$5MFY2024Locked: fit score and contacts
The Elkins Foundation$100,000$17.3M$5,000–$1.5MFY2024Locked: fit score and contacts
The William Stamps Farish Fund$50,000$16.7M$10,000–$1MFY2024Locked: fit score and contacts
The John M O'Quinn Foundation$50,000$15M$10,000–$2MFY2024Locked: fit score and contacts
Albert and Margaret Alkek Foundation$50,000$14M$2,500–$8.1MFY2024Locked: fit score and contacts
Hildebrand Foundation$25,000$14M$250–$8.7MFY2025Locked: fit score and contacts
The Fondren Foundation$12.4M$13M$11.8M–$13MFY2024Locked: fit score and contacts
The Lanier Theological Library Foundation$23,500$10.9M$5,000–$9.6MFY2024Locked: fit score and contacts
The Cockrell Foundation$20,000$10.8M$103–$4MFY2024Locked: fit score and contacts
The Notsew Orm Sands Foundation$1M$9M$2,500–$5.3MFY2024Locked: fit score and contacts
Joseph & Terri Gugenheim Charitable$50,000$8.1M$40,000–$8.1MFY2025Locked: fit score and contacts
The Sarofim Foundation$25,000$8M$5,000–$7.8MFY2023Locked: fit score and contacts
Jacob and Terese Hershey Foundation$30,000$6.8M$500–$455,000FY2024Locked: fit score and contacts
George & Mary Josephine Hamman Foundation$3M$6.4M$1.2M–$5MFY2025Locked: fit score and contacts
Christian Brothers Automotive Foundation$6M$6.3M$257,395–$7.2MFY2025Locked: fit score and contacts
MD Anderson Foundation$50,000$6.2M$7,500–$500,000FY2024Locked: fit score and contacts
Albert & Ethel Herzstein$10,000$5.9M$2,000–$1MFY2024Locked: fit score and contacts
  • Median grant and grant range come from the 990-PF grant schedule; a dash means there is none to report.
  • “One grant” means a schedule with a single grant — no median, nothing to range over. “One amount” means several grants, all the same size.

964 more foundations — see all in Grantlas

Data from 990-PF and Form 990 filings, FY2023–FY2025. Updated November 8, 2026.