Alihankinta 2019:http://www.subcontractingtradefair.com/
Free registration
List of subcontractors from Alava region:
http://www.camaradealava.com/subcontex/
List of Spanish subcontracting companies:
http://www.subcontracting-from-spain.com/default_en.htm
Alava Chamber of Commerce:
http://www.camaradealava.com/en/