Qblox
Qblox designs and sells a modular quantum control stack — hardware modules, deterministic Q1 sequencing, and proprietary SYNQ/LINQ protocols — used by academic labs and industrial quantum computer builders to operate superconducting, spin, and color-center qubit systems.
- Company typePrivate
- Founded2019
- HeadquartersDelft, Netherlands
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What Qblox does
Qblox BV is a privately held Dutch quantum control electronics company founded in 2019 in Delft, Netherlands, that designs and sells a modular, qubit-agnostic control stack used by academic research groups and industrial quantum computer builders to operate superconducting, spin, and color-center quantum processors. Its core product, the Cluster, integrates hardware modules (QCM/QCM-RF II for control up to 18.5 GHz, QRM/QRM-RF for readout, QRC, QTM, and QSM) around a deterministic Q1 Sequence Processor running proprietary Q1ASM low-level code, synchronized via the SYNQ protocol (sub-nanosecond, picosecond jitter) and linked via the LINQ protocol (sub-microsecond feedback) — together enabling demonstrated performance such as 99.5% two-qubit gate fidelity at IQM on a 20-qubit system and <650 ns cluster-wide feedback for active qubit reset. The complementary Qblox Scheduler provides high-level Python programming with ready-made experimental libraries, and QICK — an open-source FPGA platform — is commercialized in the U.S. under a DOE/Fermilab partnership.
The company monetizes through quote-based, multi-year enterprise hardware sales of Cluster systems and modules, bundled software licenses and support, and professional services delivered via its Excellence Center program (Chalmers, Université de Sherbrooke). It serves a dual market of academic/research institutions and industrial quantum computer builders (IQM, Rigetti, QuantWare, OQC, Qilimanjaro), with co-engineered integrations into NVIDIA NVQLink (October 2025), Hewlett Packard Enterprise HPC/AI infrastructure (June 2026), and Riverlane's Deltaflow QEC stack (March 2026). Headcount has grown from ~95 in mid-2024 to 170+ by late 2025/early 2026, with regional sales offices in Hamburg and London and a North America headquarters plus U.S. manufacturing hub established in 2025–2026 through a partnership with Prodrive Technologies; total disclosed funding is approximately $35.9M, anchored by a $26M Series A in June 2024 led by Quantonation and Invest-NL Deep Tech Fund.
Qblox firmographics
Firmographics- Name
- Qblox
- Legal name
- Qblox BV
- Website
- https://qblox.com
- Company type
- Private
- Founded year
- 2019
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Qblox designs and sells a modular quantum control stack — hardware modules, deterministic Q1 sequencing, and proprietary SYNQ/LINQ protocols — used by academic labs and industrial quantum computer builders to operate superconducting, spin, and color-center qubit systems.
- Ownership category
- akta.pro rank
Qblox industry classification
Industry- Product category
- Quantum Control Electronics
- NAICS
- Semiconductor and Related Device Manufacturing (334413), Other Electronic Component Manufacturing (334419)
- SIC
- Semiconductors & Related Devices (3674)
- akta.pro primary industry
- Quantum Control Electronics (AWG/DAC/ADC, Timing & Synchronization) (HDAGABAF)
- akta.pro secondary industries
- Control Software & Firmware for Quantum Control Stacks (HDAGABAN), Quantum Control Software & Pulse-Level Programming (HDAGACAJ), Microwave/RF Signal Generation, Up/Downconversion & LO Chains (HDAGABAG), Pulse-Level Compilation & Control Stack Integration (HDAGAKAC)
Keywords
Where Qblox is headquartered
LocationHeadquarters
- HQ city
- Delft
- HQ country
- Netherlands
- HQ region
- Europe
Offices4 records
Markets served
Qblox business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Technology or R&D, Supply Chain, Operations, Marketing or Sales, Infrastructure
Revenue model
- Quantum Control Hardware: Sale of modular control electronics including QCM, QCM-RF II, QRM, QRM-RF, QRC, QTM, QSM modules and Cluster systems for qubit control and readout in quantum computers.
- Software Licenses and Support: Software including Qblox Scheduler for quantum pulse programming, firmware updates, and technical support services bundled with hardware or sold separately.
- Professional Services: Customer success engineering, application science support, and training programs through the Excellence Center partnerships.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Quote-based enterprise pricing for quantum control systems |
Go-to-market motion3 records
Distribution channels2 records
Marketing channels6 records
Qblox product offering
Product offeringCore offering
Qblox designs and manufactures modular quantum control and readout electronics—centered on its Cluster rack-mounted system and individual modules (QCM, QRM, QRC, QTM, QSM)—that pulse, synchronize, and read out qubits across superconducting, spin, and color-center architectures. The hardware is paired with the proprietary Q1 Sequence Processor, Q1ASM low-level control language, Qblox Scheduler high-level software, and SYNQ/LINQ synchronization and feedback protocols, sold primarily to academic research groups and industrial quantum computer builders.
Product overview
Qblox provides a modular quantum control stack consisting of hardware modules and software designed to control and readout quantum processors. The core Cluster system integrates multiple module types: QCM and QCM-RF II for qubit control (up to 18.5 GHz), QRM and QRM-RF for readout, QRC for combined control/readout, QTM for photon time-tagging, and QSM for source/measurement. The DC Cluster provides ultra-stable bias control for spin qubits. The Q1 Sequence Processor serves as the computational core with proprietary Q1ASM assembly language for low-level control, while the Qblox Scheduler provides high-level Python-based programming. Two proprietary protocols—SYNQ for sub-nanosecond synchronization and LINQ for fast feedback—enable scaling to hundreds of qubits. The QICK (Quantum Instrumentation Control Kit) is an open-source FPGA platform developed with Fermilab/DOE for U.S. quantum research.
Differentiator
Problem solved
Functional benefit
Products and services
- Cluster Open-architecture rack-mounted modular quantum control stack uniting QCM, QRM, QTM, and other modules with proprietary SYNQ sub-nanosecond synchronization and LINQ low-latency feedback. Supports scaling from 1 to 1000+ qubits for superconducting, spin, and trapped-ion quantum systems. Sold to academic research groups and industrial quantum computer builders.
- DC Cluster Ultra-stable DC bias control system for precision voltage management in quantum experiments, particularly optimized for spin qubit applications requiring stable baseband control. Sold to research teams working on semiconductor spin qubit platforms.
- QCM (Qubit Control Module) Real-time baseband qubit control module with high channel density, ultra-low noise, and nanosecond-scale pulse parameter updates. Unifies seamlessly within the Cluster via SYNQ and LINQ protocols for multi-qubit experiments.
- QCM-RF II (Qubit Control Module RF II) High channel density, ultra-low noise RF qubit control module for precise pulse generation up to 18.5 GHz, with high SFDR, strong phase stability, and seamless Cluster SYNQ synchronization and LINQ feedback.
- QRM (Qubit Readout Module) Ultra-low-noise real-time qubit readout module with on-board data processing capabilities. All-to-all Cluster connectivity enables synchronization (SYNQ) and fast feedback (LINQ) across all channels and modules.
- QRM-RF (Qubit Readout Module RF) RF readout module with onboard data processing, integrating inputs/outputs for multiplexed readout, RF-reflectometry, and spectroscopy. Features high SFDR, LINQ feedback, and Cluster SYNQ.
- QRC (Qubit Readout and Control Module) High-density qubit readout and control module providing integrated RF/MW generation with coincidence detection and timetagging in a single module for scalable, modular precise qubit readout and control with high-fidelity gate operation.
- QTM (Qubit Timetag Module) Quantum time tagging module enabling precise time tagging of photon events with exceptional time resolution for NV centers, trapped ions, and other optically driven quantum systems. Used in quantum memory and photonics research.
- QSM (Quantum Source and Measurement Module) Quantum source and measurement module providing integrated control and photon-counting features for color center and quantum communication applications.
- QICK (Quantum Instrumentation Control Kit) Open-source FPGA-based control and readout platform for quantum systems, originally developed at Delft and commercialized through a partnership with Fermilab and the U.S. Department of Energy. Designed for quantum research and workforce development in the United States.
- Qblox Scheduler High-level Python-based software framework featuring automated hardware optimization and ready-made experimental libraries for superconducting, spin, and NV center qubits, allowing users to focus on physics rather than low-level programming. Bundled with hardware and supported by Qblox.
Companies that use Qblox
Customer profileNamed customers11 records
Segments3 records
Ideal customer profiles2 records
Qblox technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
Feature6 records
Qblox partnerships and signals
Strategic signalPartnerships
13 partnerships are on record, tiered core and minor.
- Hewlett Packard Enterprise (HPE)coreStrategic partnership to advance hybrid classical-quantum computing. Qblox control systems serve as core enabler for integrating quantum technologies with HPE's HPC and AI infrastructure. Joint development of integrated testbeds for hybrid algorithm co-design, software interoperability, and system-level performance benchmarking.
- University of SaskatchewancorePartnership to launch Canada's first university-owned full-stack quantum computer. Qblox provides control systems as one of multiple suppliers contributing to the vendor-supported system.
- Prodrive TechnologiescoreStrategic partnership for domestic manufacturing and fulfillment hub in Canton, Massachusetts. First shipments of 'Made in America' quantum control systems beginning April 1, 2026. Focus on producing the Cluster for superconducting and trapped-ion systems.
- RiverlanecoreIntegration of Riverlane's Deltaflow quantum error correction system with Qblox control hardware for real-time QEC. Enables capacity of 300 physical qubits and 5 logical qubits with sub-microsecond feedback between detection and correction.
- Elevate QuantumcoreQ-PAC (Quantum Platform for Advancement of Commercialization) system launch - nation's first commercially deployable Quantum Open Architecture system in Denver. Qblox provides control electronics as part of modular open-architecture quantum system.
- Institut quantique (IQ) Université de SherbrookecoreJoined Qblox Excellence Center program to advance scalable quantum computing research. Integration of Qblox modular quantum control stack into Quantum FabLab supporting research across superconducting, spin, and hybrid qubit systems.
- MAHE (Manipal Academy of Higher Education)minorPartnership for Quantum-Hub@MAHE in Bengaluru, India. Qblox signed MoA along with QuantrolOx, Bluefors, ConScience, and C-DAC to establish indigenous quantum hardware ecosystem aligned with India's National Quantum Mission.
- Fermilab / U.S. Department of EnergycoreDOE partnership to manufacture and distribute the QICK (Quantum Instrumentation Control Kit) in the U.S. Qblox oversees U.S.-based manufacturing, distribution, and supply chain operations for commercialization of quantum technology.
- NVIDIAcoreLeveraging NVIDIA NVQLink architecture for scalable quantum computing integration of GPU and quantum processors. NVQLink enables tight integration of NVIDIA GPUs with Qblox Q1 pulse processors for high-performance, low-latency requirements for quantum error correction and utility-scale quantum computers.
- Chalmers University of TechnologycoreExcellence Center partnership; Qblox as go-to quantum control provider for 100-qubit quantum computer for Swedish industry.
- QuantWarecoreMultiple collaborations including HectoQubit/2 project for Tuna-5 open-architecture quantum computer and Q-PAC system. QuantWare manufactures superconducting quantum processors used with Qblox control electronics.
- Rigetti ComputingcoreMultiple collaborations including University of Saskatchewan system and open-architecture quantum systems. Rigetti provides quantum processing units.
- TreQminorCo-organized workshop on open system architecture at IEEE Quantum Week 2025.
Scale indicators7 records
Recent moves8 records
Expansion highlights6 records
Qblox competitors and assessment
Company assessmentDirect peers
- Quantum Machines: Direct competitor offering the OPX quantum control platform and QUA software for qubit control and readout across superconducting, ion trap, and neutral atom systems. Closest analog in product scope, customer base, and go-to-market, and one of the most aggressive rivals in the space.
- Zurich Instruments: Swiss manufacturer of SHF, HDAWG, and PQSC quantum control electronics used widely in academic and industrial quantum labs. Acquired by Rohde & Schwarz in 2024, giving it vastly greater capital and global reach; directly competes with Qblox on AWG and signal generation.
- Tabor Electronics: Specialized AWG and signal generator vendor serving quantum and RF test markets. Competes with Qblox on arbitrary waveform generation, RF upconversion, and the broader qubit-control electronics stack.
- Quantum Machines (Quantum Orchestrator): Listed separately to emphasize Quantum Machines' flagship Quantum Orchestrator platform, which is the most direct functional analog to Qblox's Cluster and the primary head-to-head competitor for industrial-scale deployments.
Others
- Bluefors: Leading dilution refrigerator manufacturer for quantum computing, frequently co-deployed with Qblox control systems in customer labs. Not a direct competitor, but part of the same integrated quantum hardware stack and a frequent co-design partner.
- Riverlane: Quantum error correction software provider that integrates directly with Qblox hardware. Functions as a partner in the stack rather than a competitor, but its roadmap choices materially shape demand for Qblox's real-time control capabilities.
Emerging players
- Quantum Design: Distributor and developer of cryogenic and low-temperature measurement systems, including partnerships with Attocube and other quantum hardware vendors. Tangentially competes at the system-integration layer adjacent to Qblox's Cluster.
- Swabian Instruments: Offers time-tagger and photon-counting products (Time Tagger, Pulse Streamer) used in photonic quantum computing, trapped-ion, and color-center labs. Overlaps with Qblox's QTM timetag module and quantum communication use cases.
Broad incumbents
- Keysight Technologies: Large test-and-measurement incumbent with a quantum control portfolio (M5300A, M9411A, QCS) targeting the same customers as Qblox. Competes as part of a much broader product portfolio rather than a focused quantum play.
Regional players
- Maybell Quantum: U.S.-based cryogenics and dilution refrigerator maker that has joined Qblox-led open-architecture initiatives (e.g., Q-PAC). Acts as a complementary hardware partner rather than a control-electronics competitor.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Qblox social profiles
Digital presenceQblox financial estimates
Financial estimateRevenue estimate
Valuation estimate
Qblox leadership team
Management profileNumber of profiles
Profiles6 records
Qblox subsidiaries and ownership
Company hierarchySubsidiaries1 record
Qblox funding detail
Funding detailFunding overview
Funding rounds5 records
Investors6 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Qblox M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Qblox
What does Qblox do?
Qblox designs and manufactures modular quantum control and readout electronics—centered on its Cluster rack-mounted system and individual modules (QCM, QRM, QRC, QTM, QSM)—that pulse, synchronize, and read out qubits across superconducting, spin, and color-center architectures. The hardware is paired with the proprietary Q1 Sequence Processor, Q1ASM low-level control language, Qblox Scheduler high-level software, and SYNQ/LINQ synchronization and feedback protocols, sold primarily to academic research groups and industrial quantum computer builders.
Is Qblox a public or private company?
Qblox is a private company. It is classified as venture growth investor backed and is currently operating.
When was Qblox founded?
Qblox was founded in 2019. It employs 101 to 250 people.
Where is Qblox based?
Qblox is headquartered in Delft, Netherlands, in the Europe region.
How does Qblox make money?
Three revenue lines are on record. Quantum Control Hardware is the primary driver. The others are software Licenses and Support and professional Services.
Who are Qblox's main competitors?
Direct peers on record are Quantum Machines, Zurich Instruments, Tabor Electronics and Quantum Machines (Quantum Orchestrator). Others are Bluefors and Riverlane. Emerging players are Quantum Design and Swabian Instruments. Keysight Technologies is listed as a broad incumbent. Maybell Quantum is listed as a regional player.
Does Qblox have an API?
No public API is recorded for Qblox.
What industry is Qblox in?
Qblox's product category is Quantum Control Electronics. Its primary akta.pro industry code is HDAGABAF, Quantum Control Electronics (AWG/DAC/ADC, Timing & Synchronization), with a secondary code of HDAGABAN, Control Software & Firmware for Quantum Control Stacks. Its NAICS code is 334413 and its SIC code is 3674.