Highlights Spain’s Progress in Quantum Communications and Real-World Applications
On October 15th, 2025, the SpainQCI Day 2025 conference, held at Torre Emperador in Madrid, brought together top representatives from Spain’s scientific, industrial, and institutional sectors to explore the nation’s growing leadership in quantum communications. Organized by Cipherbit-Grupo Oesía, partner of the EuroQCI Spain initiative, the event served as a platform to showcase the country’s contributions to the European Quantum Communication Infrastructure (EuroQCI) and the practical integration of quantum technologies into existing communication networks.
The day began with welcoming remarks from Valerio Pruneri (EuroQCISpain Coordinattor and Group Leader at ICFO), Alfredo Díez (COO, Cipherbit–Grupo Oesía), and José María Millán Martínez (Director General, CESTIC), who emphasized the strategic importance of quantum technologies for cybersecurity and national resilience. Following, early sessions addressed QCI from institutional and strategic perspectives, with speakers such as Enrique Sánchez (Quantum Flagship, EU QCN Office, Brussels) and Jaime Sánchez Mayorga (Spanish Space Agency), who outlined the European context and Spain’s pivotal role in advancing quantum-secure communications.
A key highlight of the conference was the presentation of the EuroQCI Spain consortium’s ongoing projects and use cases, demonstrating how quantum communication can be effectively deployed and integrated into conventional telecommunication infrastructures. The consortium, which includes ICFO, Universidad Politécnica de Madrid (UPM), Telefónica, Indra, CSIC, Cellnex and Cipherbit–Grupo Oesía, has been developing and testing different use-cases in banking, defense, governmental networks, and critical infrastructure protection. Initiatives such as BCNQCI (Barcelona Quantum Communication Infrastructure), led by ICFO, and MADQCI (Madrid Quantum Communication Infrastructure), led by UPM, have achieved significant milestones in linking urban quantum networks with classical systems, validating quantum key distribution (QKD) protocols in realistic environments. These testbeds are pioneering examples of how Spain is turning research into operational technology for secure data transmission.
Afternoon sessions examined the current positioning and future challenges major projects and hub, as well as the national and regional ecosystem, with participation from major industrial and research stakeholders.
Javier Aday, Quantum Technologies Lead at the Ministry for Digital Transformation and Spain’s representative in the European Commission’s QTCG, outlined national strategies. Key national projects were presented by Ángel Álvaro (Thales Alenia Space) and Demetrio Zorita (Sener Aeroespacial), focusing on secure quantum communications and satellite-based QKD.
Regional innovation was highlighted by Catarina Bastos (Indra Deimos), Marcos Curty (University of Vigo), and Eduardo Jacob (EHU/UPV), emphasizing the research and quantum network development in their respective regions. Then, industry leaders—including Gonzalo Parente (Grupo Oesía), Antonio Herranz (LuxQuanta), Fernando de la Iglesia (Quside), Aida García (Q-dynamics), and Juan Pedro Brito (Qoolnet)—showcased the growing strength of Spain’s quantum technology companies and the range of products and services they have deployed in the past as well as the future. The discussions emphasized the importance of interoperability, standardization, and collaboration across sectors to strengthen Spain’s contribution to the European quantum infrastructure.
Closing the event, Vicente Martín, Professor at the Universidad Politécnica de Madrid, summarized the day’s outcomes, underlining the strong coordination between Spanish institutions and the rapid progress being made in deploying secure, scalable quantum communication networks. He highlighted the country’s ambition to become a European leader in quantum technologies through sustained research, innovation, and cross-sector collaboration.














































