JCDecaux renews the landmark metro station advertising contract in Finland Paris, December 2nd, 2025 – JCDecaux SE (Euronext Paris: DEC), the number one outdoor advertising company worldwide, announces that following a competitive tender, it has been awarded an 8+2 year contract with Helsinki City Transport Authority (HKL) and Länsimetro Oy to operate all advertising spaces in Helsinki and Espoo metro stations. Starting from July 1st, 2026, the new contract continues the strong partnership between JCDecaux ...