Elaine Marshall & family

Elaine Marshall & family

Elaine Marshall & family (#66)

  • $ 31 B
  • Koch Inc.
  • United States
  • F
  • 83 Years

About Me

Elaine Marshall owns an estimated 16% of $125 billion (sales) conglomerate Koch, Inc. (formerly Koch Industries) with her two sons. She inherited her stake from husband E. Pierce Marshall (d. 2006), whose father J. Howard Marshall II (d. 1995) was an early partner of founder Fred Koch (d. 1967). J. Howard II was married to Playboy Playmate Anna Nicole Smith (d. 2007) at the time of his death. Fred Koch's son Charles is chairman and co-CEO of Koch, Inc. and splits an 84% voting stake with Julia Koch, the widow of his brother David (d. 2019). Elaine's son Preston Marshall is a former director of the Cato Institute, a libertarian think tank cofounded by Charles Koch. Her son E. Pierce Marshall, Jr. runs investment firm Élevage Capital Management.
About Images

Achievements

Career Highlights

A snapshot of the defining milestones, leadership decisions, and breakthroughs that shaped Elaine Marshall & family’s rise and global influence.

  • #32   Forbes 400 (2025)
  • #67   Billionaires (2025)

Wealth Growth

Net Worth Growth Over Time

Tracking Elaine Marshall & family’s net worth journey over the years, highlighting key growth phases and financial milestones.

Current Net Worth: $30.9B (February 5, 2026)