The Wertheimer Family — $90 Billion (Chanel)

The Wertheimer family controls a $90 billion empire through 100% ownership of Chanel, which generated $19.4 billion in revenue in 2023—making it the largest privately held luxury brand worldwide. Founded in 1924, the brand’s secrecy rivals that of #5’s Mars family, with Alain and Gérard never giving interviews and rarely photographed. Their fortune is 35% higher than the typical luxury rival’s valuation, built on timeless design and zero public exposure.