Isolux Corsán S.A. was a prominent Spanish multinational group specializing in global engineering, procurement, and construction (EPC) projects, as well as concessions. Its core activities spanned energy (including renewables, generation, and transmission), transportation infrastructure (highways, railways, airports), building construction, and industrial services. Founded through a merger in 2004, it grew to have a significant international presence, undertaking large-scale projects across numerous countries. However, the company faced severe financial difficulties starting around 2015-2016, leading to protracted insolvency proceedings, debt restructuring, and the eventual piecemeal sale or liquidation of its various business units and assets. As a cohesive operational entity, Isolux Corsán largely ceased to exist by 2018-2019.
The Madrid headquarters housed the central corporate functions, including executive management, strategic planning, global project oversight, finance, legal, and engineering coordination for its diverse international projects.
Likely a modern office complex designed to accommodate a large multinational corporation's staff and operational needs, typical of corporate HQs in major European capitals. Specific unique architectural details are not widely publicized post-insolvency.
As a major international EPC contractor, the work culture at its peak was likely dynamic, project-oriented, and demanding, with a strong emphasis on engineering expertise, international collaboration, and managing complex, large-scale infrastructure ventures.
The Madrid HQ was highly significant as the command center directing a vast portfolio of infrastructure projects across dozens of countries, symbolizing Spain's capability in global engineering and construction during the company's operational years.
Historically, Isolux Corsán had a widespread global presence, operating in over 40 countries across Europe, the Americas, Asia, and Africa. Its global functions included engineering, procurement, and construction (EPC) for large-scale projects in power generation (thermal, hydro, solar, wind), high-voltage transmission lines and substations, transportation infrastructure (highways, railways, airport facilities), and major building projects. The company also managed infrastructure concessions, involving long-term operation and maintenance.
Calle de Serrano Galvache, 56 (this was a known past address, current occupancy may differ)
Madrid
Community of Madrid
Spain
Address: Specific addresses are not current due to company dissolution. Historically, maintained a significant operational office.
Oversaw project execution, business development, and local operations for the South American region, adapting global strategies to local market conditions.
Address: Specific addresses are not current due to company dissolution. Historically, maintained a significant operational office.
Acted as a strategic center for tapping into the growing Asian infrastructure market, managing local partnerships and project delivery.
Address: Specific addresses are not current due to company dissolution. Historically, had presence for its US operations, particularly in energy.
Supported business development and project management for Isolux Corsán's activities in the United States and North America.
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As of April 2025, ISOLUX CORSAN' leadership includes:
ISOLUX CORSAN has been backed by several prominent investors over the years, including:
Significant executive turnover characterized the period leading up to and during Isolux Corsán's insolvency (circa 2016-2018). This involved departures of long-term leadership and appointments aimed at restructuring, followed by roles related to the liquidation process. As the company is now defunct, there are no 'current' executive changes in the last 12 months under the Isolux Corsán banner.
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Isolux Corsán is no longer an operational entity, so its email systems are defunct. However, during its operational period, multinational corporations of its size commonly used standardized email formats. Typical patterns included [first_initial][last]@[companydomain].com or [first].[last]@[companydomain].com.
[first_initial][last]@isoluxcorsan.com (e.g., jsmith@isoluxcorsan.com) or [first].[last]@isoluxcorsan.com (e.g., john.smith@isoluxcorsan.com) were likely historical formats.
Format
example@isoluxcorsan.com (illustrative, non-functional)
Example
0 (company is defunct, emails are inactive and would bounce)%
Success rate
Expansión • July 19, 2018
The article details the commencement of the liquidation process for Isolux Ingeniería, a key engineering subsidiary of the insolvent Isolux Corsán group. It outlines the plans for auctioning its assets, marking a significant step in dismantling the former conglomerate....more
Reuters • February 1, 2017
Isolux Corsan filed for preliminary creditor protection as it struggled with heavy debts and sought to negotiate a restructuring plan with its creditors. This was a critical step leading to its eventual full insolvency....more
El País English Edition • July 31, 2017
The Spanish construction and engineering group Isolux Corsán officially filed for bankruptcy protection after failing to reach a refinancing agreement with creditor banks. This affected thousands of jobs and numerous international projects....more
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