Wiring our world for infinite energy

Subra is a Danish deep-tech developing revolutionary superconductor solutions for zero-loss power transmission and fusion energy. We are an impact company believing in the power of science to shape a future where energy flows without limits – clean, connected, and carbon-free.

While superconductor technology is complex in nature, the impact is clear: when cooled, superconductors transport electricity with zero resistance – meaning more power can flow with no loss, enabling far greater efficiency than conventional cables. But until now, superconductors have been expensive, difficult to scale, and limited by technical constraints.

Subra is aiming to change that.

We are taking a fundamentally different approach from conventional high-temperature superconductors, unlocking scalable applications for real-world energy systems. Our technologies are based on +20 years of scientific research – and designed for sustainable impact.

Moving forward, together

We would love to hear from you. Join us in reshaping energy landscapes through scalable superconductor solutions. Whether you are curious, looking to collaborate, or exploring sustainable innovations, let’s connect and make an impact together.