Members of the Asociación Española de Túneles y Obras Subterráneas enjoy the following benefits:

• A special price when participating in Technical Conferences, Symposia, Congresses, etc organised by AETOS or in those in which it collaborates (20% discount on the established price). In the case of institutional members, this discount will apply to a maximum of 5 members of the company.
• Collection of free books published by AETOS on the occasion of the Technical Conferences, Symposia and Congresses held.
• Special prices on the purchase of publications.
• Obtaining the Association Certificate.
• Contact with foreign companies and experts.
• The possibility of participating in the Association’s Working Groups, investigating different areas.
• Free access to the information available and to technical journals.
• Free access to the Library service.
• Exclusive on-line services for members.
• Invitations to Functions related to the Association’s activities.
• Mention in the list of members on the website.
• Mention in the list of members in the Annual Activities Report.
• Belonging to the Association means representing and defending the interests of the underground works construction sector.
• AETOS is the meeting point between companies and professionals in the tunnel and underground works industry.Relationships are contributed from AETOS with Professional Associations, Universities and Spanish and International Associations which work in research and development in the field of Tunnels, looking to improve them.