FrostByte Secures €1.3M Pre-Seed Funding to Scale Quantum Control

FrostByte has secured €1.3 million in pre-seed funding from a consortium of investors including UNIIQ, Paeonia Group, InnovationQuarter, and Graduate Ventures. The startup is addressing the challenge of controlling increasingly large numbers of qubits by developing cryogenic RF switches; these components operate at millikelvin temperatures, directly addressing the physical limitations of current quantum computer architecture by replacing bulky, room-temperature electronics. The company states that solving the scaling problem is crucial for the next decade of quantum computing, outlining its mission to miniaturize control electronics for denser, cheaper, and more scalable quantum technologies. This innovation builds upon foundational work in cryo-CMOS led by scientific advisors Fabio Sebastiano and Masoud Babaie, enabling the creation of integrated circuits designed to operate within the quantum computer’s cryostat itself. QuTech, Delft University of Technology, and YES!Delft provided support in launching the startup.

€1.3M Pre-Seed Funding Led by UNIIQ and Paeonia Group

FrostByte has secured €1.3 million in pre-seed funding, with backing from UNIIQ, Paeonia Group, InnovationQuarter, Graduate Ventures, and an angel investor. The startup is focused on miniaturizing quantum control electronics, a necessity as the industry progresses beyond hundreds of qubits toward the millions required for practical applications, where current room-temperature systems become physically and economically unsustainable. FrostByte’s initial product line centers on cryogenic RF switches, designed to operate at millikelvin temperatures directly within the quantum processor’s cryostat, reducing the size and power consumption of essential control circuitry. QuTech, Delft University of Technology, and YES!Delft provided support as the startup began. This work would not be possible without the founding team of James Kroll, Luc Enthoven, and scientific advisors Fabio Sebastiano and Masoud Babaie, whose foundational work in cryo-CMOS enabled the company.

Cryo-CMOS Integrated Circuits Minimize Quantum Control Electronics

Current quantum computing architectures rely on extensive room-temperature electronics for qubit control and readout, a system quickly reaching physical limitations as qubit counts increase. The initial product line focuses on cryogenic RF switches, replacing conventional switching components with devices functioning at millikelvin temperatures, a critical advancement for density and power efficiency. The company stated that the development of these circuits promises to alleviate constraints on cabling, cryostat space, and overall costs, all of which are becoming increasingly problematic as the quantum industry pursues scalability; FrostByte believes resolving these engineering bottlenecks is essential for the future of quantum computing.