The Chambers of Commerce through their service of industrial subcontracting Stock Exchange (SubcontEX) identify subcontractors capable of satisfying the purchasing needs of contractors from anywhere in the world.

The Chambers disseminate the characteristics of the subcontracting companies of their area and gather demands that they pass on to the associated of their Stock Exchange.

One of the main objectives of the Industrial Subcontracting Stock Exchange (SubcontEX) network of the Chambers of Commerce is to promote Spanish industrial subcontracting companies, promote their commercial relations with client companies or contractors and support the consolidation and internationalization of these companies. Through the advice and development of specific programs and services for companies in this sector.