Delft-based FrostByte secures a cool €1.3 million to scale cryogenic electronics for quantum computing
FrostByte, a Delft-based startup developing cryogenic electronics solutions for quantum technologies, has raised €1.3 million in funding from InnovationQuarter Capital, Graduate Ventures, Paeonia Group, UNIIQ and an angel investor. With this investment, Graduate Ventures reaches a milestone, marking its 80th investment
The company plans to use this capital to further expand its team, scale production of cryogenic switches and develop integrated cryo-CMOS chips for the next generation of quantum systems.
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.”
Founded in 2025, FrostByte is led by founders James Kroll (CEO) and Luc Enthoven (CTO), and is scientifically supported by Fabio Sebastiano and Masoud Babaie. Both advisors are pioneers in cryo-CMOS technology with decades of research experience, now applied commercially.
FrostByte is a spin-off from TU Delft and QuTech. It focuses on cryogenic integrated circuits (ICs) and specialised control electronics for quantum computing.
The company states that it addresses a key bottleneck in quantum computing. Before quantum computers can be scaled up, a crucial infrastructure issue needs to be resolved: managing millions of qubits without causing system overloads due to excessive cabling, heat, and external electronics.
The Delft-based startup claims to be developing cryo-electronics that address exactly this challenge. The company develops technology that brings control infrastructure closer to the quantum processor itself, laying the foundation for a new generation of scalable quantum systems.
“Quantum processors operate at temperatures close to absolute zero. In current systems, a large part of the control electronics remains outside the cryogenic environment, meaning that every additional qubit leads to more connections, complexity and heat generation. FrostByte moves part of that control electronics into the dilution refrigerator itself, using specialised cryo-CMOS technology designed to operate at extremely low temperatures. In doing so, the company is developing a new generation of cryogenic control electronics that make quantum systems more compact, energy-efficient and scalable,” explained the company.
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