# Dan L Duncan Family Foundation

Dan L Duncan Family Foundation is an Endowment / Foundation based in Houston, United States.

## Overview

- **Organization type:** Endowment / Foundation
- **Headquarters:** Houston, United States
- **Region:** North America
- **Address:** PO Box 4735, Houston, TX, United States
- **Founded:** 2004
- **Assets under management:** Undisclosed

## Regulatory record

- **Reports private funds:** No

## About

The Dan L Duncan Family Foundation was established in 2004 following the death of Dan L. Duncan, co-founder and majority owner of Enterprise Products Partners. His four children serve as directors and officers. The foundation operates as the family's primary philanthropic entity and receives funding linked to the midstream energy business. Grantmaking centers on health research, medical institutions, and local education initiatives. Confirmed positions include limited partnership interests in KKR Asian Fund and Blackstone Real Estate Partners Asia II. The foundation also holds direct real estate assets such as the 5,000-acre Double D Ranch in Texas and a commercial office at 1100 Louisiana Street in Houston. Activity remains concentrated in the United States, with the majority of distributions occurring inside Texas. The foundation lists no public investment staff count. It maintains relationships with Northern Trust as custodian and Deloitte as tax advisor. In January 2025 the foundation sponsored the Houston Safari Club Foundation Worldwide Hunting Expo & Convention. Adjacent vehicles include the Dan L. Duncan Comprehensive Cancer Center, established with a $100 million gift in 2006, and the Jan and Dan Duncan Neurological Research Institute, seeded with a $50 million gift in 2007. Governance stays within the Duncan family. Randa Duncan Williams serves simultaneously as chairman of Enterprise Products Partners and president of the foundation, creating a direct link between the operating company and philanthropic decisions.

## Sectors

- Healthcare
- Education

## People

- Randa Duncan Williams — President
- Milane Duncan Frantz — Vice President
- Dannine Duncan Avara — Vice President
- Scott D. Duncan — Vice President
- W. Randall Fowler — Director and CFO

## Questions

### Who runs investment decisions at the Dan L Duncan Family Foundation?

Randa Duncan Williams serves as president. Family members Milane Duncan Frantz, Dannine Duncan Avara, and Scott D. Duncan act as vice presidents. W. Randall Fowler serves as director and CFO.

### Does the Dan L Duncan Family Foundation participate in fund commitments or only direct deals?

The foundation holds limited partnership interests in KKR Asian Fund and Blackstone Real Estate Partners Asia II. It also maintains direct ownership of Texas real estate assets.

### What investment stages does the Dan L Duncan Family Foundation typically target?

The foundation makes grants to established medical and educational institutions. It also commits to private equity and real estate funds without a disclosed stage preference.

### How is the Dan L Duncan Family Foundation related to Enterprise Products Partners?

The foundation receives funding from the Duncan family's ownership in Enterprise Products Partners. Randa Duncan Williams chairs both the partnership and the foundation.

### What is the Dan L Duncan Family Foundation's known posture on co-investments alongside external GPs?

The foundation has taken limited partner positions in funds managed by KKR and Blackstone. No direct co-investment activity alongside external managers is documented.

## Related profiles

- [Sobrato Family Foundation](https://altss.com/profile/sobrato-family-foundation)
- [Lionscrest Advisors](https://altss.com/profile/lionscrest-advisors)

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Last updated: 2026-06-03T20:00:00.000Z

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