Q*Bird

Qblox is a QuTech spin-out that engineers scalable control electronics for quantum computers. Its modular Cluster system provides high-fidelity microwave control and readout for superconducting, spin, and NV center qubits. Qblox supplied the control stack for the Q-PAC system (the first commercially deployable open-architecture quantum computer in the US) and was selected by DOE/Fermilab to manufacture the QICK quantum control platform. Partners include Bluefors (cryogenic integration), Q-CTRL (calibration), and QuantWare.

Delft Circuits is the leading provider of cryogenic I/O cabling for quantum computers. Its Cri/oFlex technology replaces conventional coaxial cables inside dilution refrigerators with flexible, high-density cables that deliver up to 50% more channels per loading port. A strategic partnership with Bluefors (announced 2025) offers turnkey quantum I/O solutions pre-installed in cryogenic systems. Delft Circuits' 5-year roadmap shows how its technology will scale from hundreds to thousands of qubits — solving one of quantum computing's biggest physical bottlenecks.

Leiden Cryogenics is a Dutch manufacturer of custom-built dilution refrigerators and cryogenic systems, with deep roots in Leiden University's physics department — historically one of the world's most important centers for low-temperature physics. The company specializes in bespoke cryogenic solutions for demanding research applications and has a loyal customer base among academic quantum computing groups.

QuantWare is a QuTech/TU Delft spin-out that sells off-the-shelf superconducting quantum processor chips and components. Rather than building complete quantum computers, QuantWare supplies the processor itself — a Quantum Utility Block (QUB) that other companies can integrate into their own systems. This modular approach mirrors the classical computing model where processors and systems are built by different companies. QuantWare partners with Qblox (control electronics) and Bluefors (cryogenics).