Chanel S.A. is a French, privately held company owned by Alain Wertheimer and Gérard Wertheimer, grandsons of Pierre Wertheimer, who was an early business partner of the couturière Gabrielle Bonheur Chanel. With so many fakes and super fakes flooding the market, having the ability to spot small differences and determine whether or not a Chanel bag is genuine is an important skill. Although there is no one single way to authenticate a Chanel bag, there are various tell-tale signs that you can look out for.