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Rhonexum develops cryogenic electronics for quantum computing and other applications.
Based in Lausanne, Switzerland, Rhonexum develops cryogenic integrated circuits, circuit simulations and automated measurement systems. Its products are designed to operate below -270°C for quantum computing and high-performance systems. In March 2026, the company raised USD 1 million in pre-seed funding led by QDNL Participations, with Venture Kick participating.
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