Delft Startup FrostByte Raises €1.3M To Advance Cryogenic Electronics For Quantum Computing

The round marks a milestone for Graduate Ventures, representing its 80th investment.

The company will use the new funding to expand its team, scale production of cryogenic switches, and advance the development of integrated cryo-CMOS chips designed for next-generation quantum systems.

Founded in 2025 FrostByte is led by CEO James Kroll and CTO Luc Enthoven. It is scientifically supported by Fabio Sebastiano and Masoud Babaie, both recognised pioneers in cryo-CMOS technology with extensive research experience now being translated into commercial applications.

A spin-off from TU Delft and QuTech, FrostByte focuses on cryogenic integrated circuits and specialised control electronics for quantum computing.

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The company targets a major bottleneck in quantum computing scalability: the difficulty of controlling millions of qubits without overwhelming systems with excessive cabling, heat, and external electronics.

Its approach involves developing cryo-electronic systems that operate closer to the quantum processor, reducing infrastructure load and enabling more scalable quantum architectures.

James Kroll, CEO and co-founder of FrostByte: “With this investment, we can further develop our technology towards manufacturable cryo-electronics for the global quantum industry.”

About FrostByte

FrostByte makes special electronics that work in extremely cold temperatures for quantum technology. The company builds reliable high-quality hardware designed to perform in harsh conditions. Its goal is to support progress in quantum computing and scientific research by providing advanced technology used around the world.