It is also a leading center of the advertizing industry. Most international ad firms have offices in the city, including Grey, JWT, Leo Burnett, Euro RSCG, BBDO, Ogilvy, Saatchi & Saatchi, and McCann Erickson. Many local firms also compete in the sector, including Alazraki, Olabuenaga/Chemistri, Terán, Augusto Elías, and Clemente Cámara, among others. There are 60 radio stations operating in the city and many local community radio transmission networks.