In 1958 he met Yves Saint Laurent, then a young artistic director for Dior. In 1961; they etered a partnership to strat up the Yves Saint Laurent fashion company, wich he helped build up into a luxury multinational. In 1973, he created the Chambre syndicale du prêt-à-porter des couturiers et des créateurs de mode and was its president untill 1993.
He held concurently many other jobs - as President of DEFI (1991-1994), of UFAC(since 1991) and founder and president ef IFN(since 1986).
In 1991, Pierre Bergé, always careful of fashion designers and of the needs of the profession, accepted to become president of ANDAM, making it a usefull support and efficient tool for young talents. Editor, art lover, bibliophile, author of three books, founder of the "Lundis musicaux" at the théâtre de l'Athénée in 1977, producer of Philip Glass, John Cage and Ingrid Caven's show, he was appointed president of the Opéra de Paris in 1988.
Is the Honorary President of the Opéra National de aris in 1994. In 1992, Pierre Bergé was decorated as Officier de la Légion d'Honneur and Commandeur des Arts et des Lettres.