Qblox
Qblox B.V. designs and manufactures the Cluster, a modular 19" rack quantum control system for qubit control and readout, sold to academic laboratories and quantum hardware builders worldwide. The Cluster is platform-agnostic, supporting superconducting, spin-qubit, and colour-centre (NV) systems over a frequency range up to 18.5 GHz via hot-swappable modules and the proprietary SYNQ synchronisation protocol. A QuTech / TU Delft spin-out founded in Delft in 2019 by Niels Bultink and Jules van Oven, the company reached more than 100 customers before raising its first equity round, a €24.2 M ($26 M) Series A in June 2024. A North America hub opened in Boston in June 2025 and US manufacturing via Prodrive Technologies in Canton, Massachusetts began April 2026.
Timeline
Current flagship
Cluster — Modular 19" rack quantum control system (up to 20 modules, up to 120 Q1 sequence processor cores; SYNQ/LINQ protocols; 2–18.5 GHz RF coverage)
Milestones
- 2026-04US manufacturing of Cluster systems begins in Canton, Massachusetts via Prodrive Technologies partnership
- 2026-03Qblox and Riverlane demonstrate real-time QEC integration — Deltaflow decoder coupled to Cluster control hardware, supporting 300 physical qubits and 5 logical qubits
- 2025-11DOE / Fermilab partnership announced — Qblox to manufacture and distribute the open-source QICK quantum control platform across US national labs, universities, and industry
- 2025-11Quantum Utility Block (QUB) launched with QuantWare and Q-CTRL — pre-validated full-stack quantum computer reference systems in Small (5 Q), Medium (17 Q), and Large (41 Q) configurations
- 2025-09Strategic partnership with Qruise to integrate ML-based quantum system calibration software with Cluster control systems
- 2025-09Collaboration with Qilimanjaro Quantum Tech extended to Qilimanjaro's Hybrid Quantum Data Center in Barcelona for digital-analog quantum computing
- 2025-06North America headquarters opened at 99 High Street, Boston, Massachusetts
- 2025-05Tuna-5 superconducting quantum computer launched on Quantum Inspire cloud platform — Qblox provided control electronics in the HectoQubit/2 consortium (QuTech, TNO, QuantWare, Orange Quantum Systems, Delft Circuits)
- 2025-03Collaboration MOU signed with Bluefors to develop integrated control-and-cryostat solutions for spin-qubit systems
- 2024-06Series A closed — €24.2 M ($26 M) led by Quantonation and Invest-NL Deep Tech fund, with QDNL participations and EIC
- 2020-07Seed investment received from UNIIQ (TU Delft / Delft Enterprises vehicle) to develop and commercialise the Cluster control stack
- 2019Founded in Delft as a QuTech / TU Delft spin-out by Niels Bultink and Jules van Oven
Roadmap
- 2026 QEC-integrated control stacks supporting 300+ physical qubits with real-time sub-microsecond feedback (Riverlane Deltaflow integration) source ↗
- 2026 Quantum Utility Block (QUB) deployment at Elevate Quantum facility (Q-PAC, Colorado) — Qblox control stack in a 41-qubit pre-validated reference system source ↗
- 2026+ Scale Cluster-based control stacks toward thousands-of-qubits class systems; deepen QEC decoder integration; expand quantum network solutions product line source ↗
Capability details
4 unverified fields
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founded— Crunchbase cites 2019; PitchBook and Dealroom cite 2018; the Series A press release references "four year" company journey from 2024, consistent with ~2019–2020; the UNIIQ seed round closed July 2020. The Netherlands company register (KvK 72525053) would be authoritative; not directly consulted in this run. -
shareholders— All stake percentages undisclosed — private company with no equivalent of 13F/S-1; rows reflect publicly announced lead/participant roles only -
key_personnel.2.since -
key_personnel.3.since
People
References
- blog https://qblox.com/product/cluster Cluster product page — full module list and architecture overview
- press https://qblox.com/newsroom/qblox-secures-series-a-funding-quantum-control-stack-development Series A announcement (June 2024), €24.2 M / $26 M
- press https://news.fnal.gov/2025/11/energy-department-announces-partnership-with-fermilab-and-qblox-to-manufacture-foundational-quantum-control-platform-for-u-s-research-and-innovation/ DOE / Fermilab / Qblox QICK manufacturing partnership (November 2025)
- press https://qblox.com/newsroom/qblox-opens-north-america-headquarters-in-the-heart-of-boston Boston North America HQ opening (June 2025)
- press https://qblox.com/newsroom/qblox-introduces-first-made-in-america-quantum-control-systems US manufacturing launch with Prodrive Technologies, Canton MA (March 2026)
- press https://www.prnewswire.com/news-releases/qblox-and-riverlane-demonstrate-integration-enabling-real-time-quantum-error-correction-302716275.html Qblox–Riverlane real-time QEC integration demonstration (March 2026)
- press https://qutech.nl/2020/07/08/qutech-spin-off-qblox-receives-uniiq-investment-to-enhance-quantum-computings-scalability/ QuTech announcement of UNIIQ seed investment (July 2020)
- blog https://qblox.com/team Leadership roster and full team page