TransMilenio S.A.: Plans to expands electric bus fleet in Bogotá, Colombia April 1, 2022 | TA/ TSO Focus TransMilenio S.A. is the managing entity of the TransMilenio bus rapid transit (BRT) system in Bogotá, Colombia. It is in charge of coordinating, planning, managing, and controlling the provision of b... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password