Alain Wertheimer is a French businessman and the co-owner of the controlling interest in the House of Chanel who has an estimated net worth of $27.4 billion as of July 2019. Together with his brother Gerard, they manage the company founded by their grandfather, Pierre Wertheimer, who was an early business partner of Gabrielle Bonheur Chanel.

Alain, the son of Jacques Wertheimer, took control of Chanel in 1974. When No. 5 de Chanel became a passé in fashion and perfume, he revamped the sales of the line by reducing the number of outlets from 18,000 to 12,000. He removed the perfume from drugstore shelves. He also invested millions of dollars in the advertisements for the brand’s cosmetics by using famous people such as Marilyn Monroe and Audrey Tautou as endorsers. Such move he made resulted in an ensured greater sense of scarcity and exclusivity for the fragrance line. Sales one again increased with the increase in the demand for the perfume.

Alain Wertheimer has presided over the acquisition of various non-Chanel brands such as Eres Lingerie and beachwear, Tanner Krolle saddles and leather goods, and the British gunsmith Holland & Holland. Along with Gerard, he also owns two French vineyards, one in Margaux called Rauzan-Segla and Chateau Canon in Saint-Emilion.