Koch Family
Conglomerate •
USA
$150 Billion
Compared to highest reviewed family record
qualified estimate · Bloomberg family ranking
Source of Wealth: Koch Industries
Industry: Conglomerate
Founded By: Fred C. Koch
Founded Year: 1940
Continent: North America
Evidence record
Koch Family claim-level evidence
Each material valuation, principal-ownership and wealth-source statement is tied to the sources reviewed for this family record.
Valuation statusQualified estimate
As ofDec 9, 2025
Evidence confidencehigh
Last reviewedAug 27, 2026
Date basisValuation Date
Displayed valuation$150B
Family valuation$150BqualifiedBloomberg
Principal ownershipThe fortune is held through family interests in the closely held Koch Inc. and related investments.supportedBloomberg
Wealth sourceKoch Inc.supportedBloomberg
BloombergThe World’s Richest Families 2025Published Dec 15, 2025 · Established Financial Publication
Limitations: Bloomberg estimates $150.5 billion as of December 9, 2025. The legacy display truncates that estimate to a whole-billion figure.