Colombia’s ISA: Evolving from profitable growth to sustainable value September 9, 2020 | TSO Focus Interconexión Eléctrica S.A. E.S.P (ISA) is the largest electricity transmission company in Latin America.Headquartered in Colombia, it has been in operation for about 52 years... This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password
