- Business
- Interconexión Eléctrica S.A. E.S.P. (ISA) operates as a Colombian state-owned holding company specializing in energy transmission, road concessions, and telecommunications and information and communication technology (ICT) services across Latin America. The company develops, constructs, operates, and maintains electricity transmission networks, including substations and high-voltage electricity lines, with an operational portfolio exceeding 50,000 kilometers of transmission lines and 92,600 MVA capacity. It also manages road infrastructure concessions through its subsidiary ISA Intervial, operating approximately 700 kilometers of highways primarily in Chile and Colombia, and develops extensive terrestrial and submarine optical fiber networks through its ICT subsidiary InterNexa. ISA provides chemical analysis and maintenance services related to its power transmission operations. The company focuses on markets in Colombia, Chile, Panama, Peru, and Brazil, leveraging strategic regional interconnections and digital infrastructure spanning from Florida to Patagonia. Founded in 1967 and headquartered in Medellín, Colombia, ISA recently reaffirmed its financial stability with Fitch Ratings affirming its long- and short-term national ratings. In recent corporate developments, ISA has experienced key leadership changes, including an update in its Corporate Risk Directorate, and continues to undertake a robust investment plan targeting COP 6.2 to 6.8 trillion for 2024-2026 focused on projects in Brazil, Colombia, and Chile. Strategically, ISA emphasizes innovation in energy systems integration, operational efficiency, and portfolio optimization to maintain its leading infrastructure role in Latin America. The company remains majority-owned by Ecopetrol following a 2021 acquisition of controlling shares previously held by the Colombian Ministry of Finance and Public Credit, reinforcing its position as a diversified regional energy conglomerate. ISA’s latest operational advancements include continued expansions in transmission infrastructure concessions in Peru and enhancement of its digital telecommunications ecosystem to support emerging smart grid and IP-based services across its geographic footprint.
This description integrates ISA’s core products and services, geographic scope, foundational background, and details key recent operational and strategic changes up to late 2025.