AUM
Not disclosed (managed through Duncan Family Office)
Principals
5
Principal Net Worth
$20.2B
Data Flags
Duncan family heiress; Enterprise Products Partners fortune
Frantz Family Office (Duncan/Enterprise Products)
SFOHigh ConfidenceHouston, Texas
Last verified: Jan 16, 2026
Details
- Website
- Unknown
- Source of Wealth
- Energy (Enterprise Products Partners)
- Assets Under Management
- Not disclosed (managed through Duncan Family Office)
- Source File
- research/organizations/frantz-family-office.md
- UID
- fo-frantz-family-office
Also Known As
Milane Frantz Family OfficeDuncan Frantz Family OfficeFrantz CapitalDuncan Family Office
Principals (5)
Team Members (2)
Related Entities (2)
Relationship Strength
Loading relationships...
Sources (5)
Changelog
- 2026-01-16VERIFIED to High. Added Bloomberg verification ($12.5B, #263, January 2026). Updated biography with birth year (1969), marriage details, Baylor board seat. Three sources on net worth verified: Bloomberg $12.5B, Houston Chronicle $9.4B, Forbes 400 #135.
- 2026-01-16Enriched with principal biography, Dan Duncan founder history, Enterprise Products Partners, sisters (Randa, Dannine), $3.1B 2010 inheritance. Updated confidence to Medium.
- 2026-01-15Auto-generated from principal Milane Frantz