D4S is a high-tech company founded by Dr. Eng. Sergio Durante, specialized in advanced technologies for the aerospace and energy sectors. Our strength lies in transforming deep scientific knowledge into real-world innovation—delivering cutting-edge products, systems, and services.
Officially recognized as a High Tech Innovative SME by the Spanish Government, D4S collaborates with global partners to design, develop, test, and integrate advanced components using the latest engineering tools and next-generation materials.
Our engineering team combines multidisciplinary expertise and international experience to deliver unique, high-performance solutions tailored to mission-critical environments. Wherever you are, we are ready to support your innovation journey.
Unique engineering solutions for your projects Our team of professionals has a great experience We are ready for customers from any country
Design, Manufacturing and testing of high performance energy harvester hybrid electric powertrain.
Energy harvesters permit to recover energy from delta of temperature
Design, Manufacturing and testing of high performance hybrid electric powertrain for airplanes
Next generation high entropy alloy-based multi-component green and sustainable (rare earth free) coatings with predictable functionalities, performance and life.
Address and solve the identified problems of optimal operation of wind farms using artificial intelligence.
To enhance logistics and supply chain management of maintenance service of production equipment/machine tools through AI-powered process mining
Advanced research and development for energy, aerospace and next-generation technologies.
At D4S, research is not a department — it’s our core.
We transform scientific insights into real-world aerospace applications, co-developing with universities, RTOs and industry leaders across Europe.
Our R&D profile includes advanced energy systems, AI-based diagnostics, lightweight structures and system-level simulation for extreme environments.
✓ High-efficiency powertrain development
✓ Clean energy manufacturing & validation
✓ Lightweight structures & composites
✓ AI and Digital Twin for aerospace systems
✓ Materials and tribology for extreme conditions
We work with leading-edge materials to enable next-generation flight and energy systems.
From additive manufacturing to CFRP-titanium hybrids, our expertise supports innovation from concept to full-scale prototyping.
D4S is a trusted partner in European R&D networks.
We collaborate with major aerospace stakeholders and research centres to accelerate innovation across the sector.
