Swiss quantum technology startup Rhonexum has raised $1
million in pre-seed funding, led by QDNL Participations, with participation
from Venture Kick and additional grant support.
Based in Lausanne and spun out of EPFL’s AQUA Lab, Rhonexum
develops electronics capable of operating at cryogenic temperatures close to
absolute zero, conditions required for quantum computing, where conventional
electronics cannot function reliably.
By combining proprietary models and software tools, the
company designs components using standard semiconductor processes that can
operate directly within cryogenic environments, helping to overcome a major
scalability challenge in the field. Bringing control electronics closer to
quantum processors reduces system complexity and enables more compact and
efficient architectures.
The company was founded by Vicente Carbon and Dr Hung-Chi Han, combining expertise in cryogenic semiconductor physics, systems
engineering, and the industrialisation of deeptech technologies.
Vicente Carbon, co-founder of Rhonexum, said the company
aims to become a provider of cryogenic electronics for scalable quantum
systems, supporting the transition from laboratory setups to large-scale
machines while reducing complexity and improving efficiency.
In addition to equity investment, Rhonexum has received
support from Swiss innovation programs, including EPFL Startup Launchpad,
Fondation pour l’Innovation Technologique, and the Swiss National Science
Foundation.
The company plans to deliver its first industrial-grade
cryogenic electronics product to a group of early customers later this year,
with potential applications extending beyond quantum computing into areas such
as space technologies and advanced sensing.