United StatesThrough marriage
Julia Koch
Julia Koch is the widow of David Koch; she and her three children inherited his 42% stake in the privately held industrial conglomerate Koch, Inc. (formerly Koch Industries) in 2019.
- Forbes estimate
- $84.6B
- Forbes, 22 Sep 2026
- Forbes rank
- No. 24
- 22 Sep 2026
- Stake in Koch, Inc.
- 42%
- Net worth, Bloomberg
- $78.5B
- Bloomberg, 10 Oct 2026
- Born
- 1963
- Iowa, United States
- Education
- Bachelor's degree
- Bachelor's degree, University of Central Arkansas
- Giving Pledge
- Not a signer
Where the fortune sits
The family's inherited stake in Koch, Inc.
Koch, Inc.
refining, chemicals, consumer goods and other industries (privately held), founded 1940
The stake David Koch held, inherited by her and her three children; Bloomberg credits all of it to the family. Private company, so no filing
Forbes and Bloomberg profiles (private company; no public filing), undefined Aug 2019
Board member
Other holdings
BSE Global (Brooklyn Nets, New York Liberty, Barclays Center)
She and her children agreed in 2024 to buy 15%, for nearly $700 million per Forbes
New York Giants
10% minority, non-controlling stake for her and her family, approved by NFL owners in 2025
Where Julia stands among 73
Everyone on the site, grouped by their answer. Julia Koch is outlined.
How the fortune started
Through marriage
Through marriage 5
Founded it 42
Inherited and grew it 12
Built it up 8
Inherited it 6
Industry
Several industries
Several industries 9
Technology 24
Finance 10
Metals and mining 6
Retail 4
Fashion and beauty 4
Media 3
Food and drink 3
Shipping 3
Crypto 2
Oil, gas and chemicals 2
Healthcare 1
Casinos and resorts 1
Property and sports 1
Giving Pledge
Not a signer
Not a signer 61
Signed 11
Not stated 1
Education
Bachelor's degree
Bachelor's degree 27
Graduate degree 24
Left university without a degree 6
No university 5
Not stated 11
Role today
Chair, board or owner
Chair, board or owner 25
Runs the company 32
Founder, no executive role 8
No role 4
Retired 4
The person
- Born
- 1963Iowa, United States
- Citizenship
- United States
- Lives in
- New York City, United States
- Education
- Bachelor's degreeBachelor's degree, University of Central Arkansas
- Parents
- Her family ran Flesher's, a used-furniture shop in Indianola, Iowa, where her father Frederic worked
What they give
- Giving Pledge
- Not a signer
- Foundation
- Julia Koch Family FoundationFounded in 2023 with her children; she is also president of the David H. Koch Foundation
- Lifetime giving
- $1.3BJulia Koch Family Foundation, 17 Oct 2026. 'More than $1.3 billion' given by David and Julia Koch together, through the David H. Koch Charitable Foundation and personal giving; a joint figure, not hers alone. Date is when the page was read
Role and record
- Role now
- On the boardDirector of Koch, Inc.; chair of the Julia Koch Family Foundation and president of the David H. Koch Foundation
- Successor
- No member of her family is named in a Koch executive role in the cited sources; Charles Koch is chairman and co-CEO with Dave Robertson
- Public office
- None found
- Legal record
- None found
