Forbes Values Top 25 Private Family Businesses, Led by Koch at $185 Billion
Updated
Updated · Forbes · May 14
Forbes Values Top 25 Private Family Businesses, Led by Koch at $185 Billion
1 articles · Updated · Forbes · May 14
Koch Inc. topped Forbes’ first ranking of America’s 25 most valuable private family businesses with an estimated valuation of $185 billion, ahead of Mars at $121 billion and Fidelity Investments at $107 billion.
Three companies cleared the $100 billion mark as Forbes shifted from revenue-based family-business lists to valuations, using a methodology that weighed family ownership plus executive and board roles.
The ranking spans firms behind everyday brands and services—from Publix and Enterprise Mobility to Harbor Freight, Quikrete and Mars—and the 25 companies are based in 16 states.
Cargill, founded in 1865, is the oldest company on the list, while Forbes said founder-only businesses were excluded from both its new private ranking and a separate public family-business list published Thursday.
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America’s Most Valuable Private Family Businesses: Inside Forbes’ 2026 $100 Billion Ranking
Overview
Forbes released its first-ever ranking of America’s Most Valuable Private Family Businesses on May 14, 2026, setting a new benchmark by valuing these companies based on comprehensive business value rather than just revenue. This approach recognizes that sales alone do not reflect the true impact and enduring success of family enterprises. The ranking highlights a unique model of resilience and stewardship found in these businesses, with three firms each valued at over $100 billion—making them more valuable than many leading tech unicorns. This new perspective reveals the significant, often underestimated, economic power of private family firms in the U.S.