- CEO
- Gabriel Jaime Melguizo Posada
- Full Time Employees
- 4,326
- Sector
- Utilities
- Industry
- Electric utilities
- Address
- Calle 12 Sur #18-168 Medellin ANT Colombia 050022
- IPO Date
- Apr 12, 1999
- Business
- Interconexión Eléctrica S.A. E.S.P. (ISA) is a Colombian state-owned holding company that designs, builds, operates, and maintains critical infrastructure across electric transmission, road concessions, information and communications technology (ICT), and telecommunications sectors; it engages in construction, operation, and maintenance of high-voltage transmission networks, associated generation interfaces, and network operation systems, while also managing toll road concessions and related ICT-enabled services, with a regional footprint across Colombia and international interconnections in neighboring countries. ISA focuses on the development and operation of power transmission infrastructure, including substations and high-voltage lines, and provides services in road infrastructure concessions, highway operations and maintenance, and ICT/telecommunications solutions that support grid management, telemetry, and digital infrastructure across its concessions and service portfolios. The company operates through multiple business units including electricity transmission, road concessions, and ICT/telecom solutions, and pursues growth through the development of new transmission projects, expansion of road concessions, and deployment of advanced information technology platforms to optimize operations, asset management, and customer connectivity. ISA is headquartered in Medellín, Colombia, and was established in 1967, with its ownership and corporate structure positioned to coordinate national-scale energy transmission planning, cross-border interconnections, and strategic infrastructure investments under the Colombian state. The latest major changes include active strategic partnerships and collaborations within its energy and infrastructure ecosystem, ongoing participation in large-scale transmission and road projects, governance and organizational refinements to support expanded service offerings, and continued investments and project executions in Colombia and across regional markets to enhance grid reliability and cross-border connectivity. The company’s core products and services encompass high-voltage transmission line design, construction, and maintenance; transmission network operation and monitoring systems; substations and voltage management; generation interconnection and grid readiness services; road concession development, operation, and maintenance; toll road management and rehabilitation; ICT and telecommunications solutions for grid and asset management; digital platforms for data analytics, energy management, and network optimization; and related advisory, project finance, and engineering services. ISA’s geographic operations span Colombia and international interconnections, with project activities and assets in neighboring countries and cross-border links to regional markets; the company serves electric utilities, government entities, road concession authorities, and private sector partners requiring integrated energy, transport, and ICT infrastructure solutions. Founding year and headquarters are 1967 and Medellín, Colombia, respectively, positioning ISA as a diversified infrastructure conglomerate with a portfolio that combines essential energy transmission capacity, strategic highway concessions, and ICT-enabled services under one corporate umbrella. Subsidiaries and parent relationships include the ISA group structure, with entities focused on transmission, road concessions, and related services, coordinating with national energy policy objectives and regional infrastructure development programs.