By working together we continually evolve


Building strong relationships over time

Técnicas Reunidas has the e-Supplier web portal, for the management and strengthening of its supply chain.

This web site acts as a platform that unifies communication, enabling information exchange with suppliers and subcontractors, and facilitates coverage of certain requirements such as those included in the Code of Conduct.

The launch of the web portal provides more effective, transparent and responsive management of a supply chain which is composed of more than 21,000 suppliers and subcontractors. This enhances the Company’s competitiveness and quality of work while it helps to optimise costs and minimise risks in projects.

Comillas Having suppliers and subcontractors aligned with the level of demand and values of Técnicas Reunidas is a key factor to ensure the success of the projects.


Reference Documents

If your company is interested in providing goods and services for our projects, please review the following documents and videos to help you in order to register in our e-Supplier web portal.

Technical Specifications

Operating System
Windows 7 (64-bit), Windows 8 (64-bit) or Windows 10 (64-bit).

Microsoft Internet Explorer is the only supported browser. Version 11 is recommended.
The minimum supported version is version 9.
The following browsers are NOT supported: Google Chrome, Safari, Mozilla Firefox and Microsoft Edge.

Microsoft Silverlight plug-in
If the Microsoft Silverlight plug-in is not installed, it must be installed to run the portal on your system, for security reasons it is recommended to install the latest version released by Microsoft.

The minimum version is 5.0.61118.0.

Other requirements
A screen resolution of 1280×1024 or higher is recommended for an optimal user experience.

Minimum screen resolution is 1024×768.

Translated with (free version)


Do you have any questions?

In the attached document you can find the answers to the most frequently asked questions, made by users of the portal, such as:

– Changing passwords.
– What to do if you have forgotten your password.
– How to register new portal users within your company.
– What type of questions the registration questionnaire contains.


If you have any doubts or queries related to the supplier portal,
you can contact us in the following ways:

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