Elaine Marshall & family

Elaine Marshall & family (#75)

Global Rank #75

Country Rank #36

Country United States

Elaine Marshall & family is listed among the world billionaires tracked by Iconic Billionaires.

$ 31 B
Koch Inc.
United States
F
83 Years

Snapshot

Quick Facts

Global Rank #75

Country Rank #36

Net Worth $30.9B

Previous Worth $30.9B

Worth Change +$0.0B

Country United States

Industry Koch Inc.

Age 83 Years

Gender F

Worth As Of May 4, 2026

Residence Dallas, Texas

Citizenship United States

World Billionaires List United States Billionaires Koch Inc.

Profile Data

Personal Stats

Age 83

Source Of Wealth Koch Inc.

Self Made Score 2

Philanthropy Score 1

Residence Dallas, Texas

Citizenship United States

Children 2

Net Worth Change +$0.0B +0.0% from previous worth

Previous Net Worth $30.9B

Current Net Worth $30.9B

Worth as of May 4, 2026

About Me

Elaine Marshall owns an estimated 16% of $125 billion (revenue) 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.

Achievements

Forbes List Highlights

A snapshot of the list placements and rankings connected to Elaine Marshall & family.

#71

Billionaires (2026)

#32

Forbes 400 (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.

Worth Trend Net Worth Growth

Period Change Worth Movement

Current Net Worth: $30.9B (May 4, 2026)