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Single Family OfficePuts its own capital into companiesLAST VERIFIED Aug 2026

Duncan Family Office

Single family office in Houston, United States, founded 1968; focus on climate.

USEFUL FOR Co-investors

Family & background

HEADQUARTERS
Houston, United States
FOUNDED
1968

Investment approach

ROUTES
Companies (own capital)

Overview

Headquartered in Houston, United States, the firm is listed as a single family office founded in 1968. Sectors on record are climate. It invests directly in companies; 4 people are named on its team.

People

  • Randa Duncan Williams
    Chairman of Enterprise Products Partners and leader of the family office · source
  • Milane Duncan Frantz
    Family Member · source
  • Dannine Duncan Avara
    Family Member · source
  • Scott Duncan
    Family Member · source

Frequently asked questions

Duncan Family Office is a single family office based in Houston, the United States, founded in 1968.

Duncan Family Office invests its own capital into companies.

Duncan Family Office invests in Climate & Energy.

Key people at Duncan Family Office include Randa Duncan Williams (Chairman of Enterprise Products Partners and leader of the family office), Milane Duncan Frantz (Family Member), Dannine Duncan Avara (Family Member) and Scott Duncan (Family Member).