Viqthor
Viqthor is a French deeptech company that designs modular RF, microwave, and photonic hardware—MENTHOR, MIMOTHOR, CENTHOR, and ICEQUBE—for scalable, energy-efficient control of superconducting quantum processors, selling to quantum computing companies and research laboratories via direct enterprise sales.
- Company typePrivate
- Founded2022
- HeadquartersSaint-germain-en-laye, France
- Headcount1–10
- GTM typeB2B
- OfferingHardware or Manufacturing
What Viqthor does
Viqthor SAS is a French deeptech company founded in 2022 and headquartered at the Exail/iXcampus in Saint-Germain-en-Laye, specializing in RF, microwave, and photonic hardware for controlling superconducting quantum processors. The company sells a modular four-product platform — MENTHOR (8-channel RF-over-Fiber optical transmitter, 10 MHz–18 GHz), MIMOTHOR (24-channel signal processor built on AMD RFSoC with the QICK V2 framework), CENTHOR (2–18 GHz multi-channel up/down converter supporting up to 40 independent channels), and ICEQUBE (1550 nm cryogenic photonic receiver) — designed to replace traditional coaxial cabling with optical fiber links, targeting control of one million qubits while reducing cryogenic heat load by approximately 100x versus conventional approaches.
The company addresses three structural bottlenecks in scaling quantum computers: cabling complexity in cryostats, thermal load from passive and active heat conduction, and noise-induced loss of qubit fidelity. Its technology incorporates proprietary microwave error correction for readout fidelity and real-time embedded calibration that compensates for system drift during long-duration operation. Revenue is generated through direct enterprise hardware sales of these modular systems, sold as full configurations or individual modules via quote-based pricing, targeting quantum computing companies building superconducting processors, academic and government quantum research laboratories (with CEA-IRFU and PHELIQS as a confirmed research collaborator), and—on a prospective basis—aerospace and defense organizations with cryogenic signal-processing needs. Non-dilutive funding has come from the France 2030 plan and the i-Lab 2023 Innovation Contest, and Viqthor is a member of the France Quantum, Systematic, and IRT Nanoelec ecosystems.
Viqthor employs between 1 and 10 people under founder-led leadership (CEO Guillaume de Giovanni, CTO Matthieu Pastore, Chief Quantum Officer Ioanna Kriekouki) with prior RF/microwave industry experience at Aeroflex, VIAVI Solutions, Noise Extended Technologies, and SPHEREA. The company pursues an enterprise field-sales go-to-market, supplemented by technical conference presence at VivaTech, Q2B, France Quantum Conference, QETw, and the APS Global Physics Summit.
Viqthor firmographics
Firmographics- Name
- Viqthor
- Legal name
- VIQTHOR SAS
- Website
- https://viqthor.com
- Company type
- Private
- Founded year
- 2022
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Viqthor is a French deeptech company that designs modular RF, microwave, and photonic hardware—MENTHOR, MIMOTHOR, CENTHOR, and ICEQUBE—for scalable, energy-efficient control of superconducting quantum processors, selling to quantum computing companies and research laboratories via direct enterprise sales.
- Ownership category
- akta.pro rank
Viqthor industry classification
Industry- Product category
- Quantum Computing Control Hardware
- NAICS
- Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing (334220), Communication and Energy Wire and Cable Manufacturing (33592)
- SIC
- Radio & Tv Broadcasting & Communications Equipment (3663)
- akta.pro primary industry
- Quantum Control Electronics (AWG/DAC/ADC, Timing & Synchronization) (HDAGABAF)
- akta.pro secondary industries
- Microwave/RF Signal Generation, Up/Downconversion & LO Chains (HDAGABAG), Cryogenic Wiring, Interconnects & RF Cabling (HDAGABAE), Quantum Control Software & Pulse-Level Programming (HDAGACAJ)
Keywords
Where Viqthor is headquartered
LocationHeadquarters
- HQ city
- Saint-germain-en-laye
- HQ country
- France
- HQ region
- Europe
Offices2 records
Markets served
Viqthor business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Personnel, Supply Chain, Marketing or Sales, Operations
Revenue model
- Quantum Control Hardware Sales: Sale of modular RF, microwave, and photonic hardware products including MENTHOR, MIMOTHOR, CENTHOR, and ICEQUBE systems for quantum processor control. Products are sold as complete systems or individual modules to research institutions and quantum computing companies. Revenue is generated through direct hardware sales with typical enterprise procurement cycles.
Go-to-market motion1 record
Distribution channels1 record
Marketing channels6 records
Viqthor product offering
Product offeringCore offering
Viqthor designs and manufactures modular RF, microwave, and photonic hardware systems — MENTHOR (RF-over-Fiber transmitter), MIMOTHOR (microwave signal processor), CENTHOR (up/down converter), and ICEQUBE (cryogenic photonic receiver) — that enable scalable control of quantum processors. Their products replace traditional coaxial cables with optical fibers to reduce heat loads in cryogenic environments, targeting energy-efficient control of up to one million qubits for quantum computing companies, research laboratories, and aerospace/defense organizations.
Product overview
Viqthor offers a modular hardware platform for large-scale quantum control computing solutions, consisting of four core products: MENTHOR (RF-over-Fiber transmitter for signal distribution), CENTHOR (frequency conversion platform for multi-channel up/down conversion), MIMOTHOR (signal processor for waveform generation and control), and ICEQUBE (cryogenic photonic receiver for signal demodulation). The products are designed to work together as an integrated system, replacing traditional coaxial and ribbon cables with optical fibers to enable scalable control of one million qubits while minimizing energy consumption. The platform also incorporates embedded calibration technology for real-time performance optimization and microwave-enhanced error correction for improved qubit fidelity.
Differentiator
Problem solved
Functional benefit
Brands
- MIMOTHOR: 24-Channel Microwave Signal Processor for Quantum-Class Performance - high-performance RF signal processor with advanced digital synthesis, phase coherence, and sub-microsecond feedback capabilities for waveform generation, signal capture, and control in a single 2U chassis
- MENTHOR
- CENTHOR
- ICEQUBE
Products and services
- MENTHOR High-performance 8-channel RF-over-Fiber optical transmitter supporting 10 MHz to 18 GHz frequency range for precise, long-distance microwave signal distribution in quantum computing and RF testing applications.
- MIMOTHOR 24-channel RF signal processor based on AMD RFSoC with advanced digital synthesis, phase coherence, and sub-microsecond feedback capabilities. Supports both continuous-wave and pulsed-sequencing modes for quantum gate orchestration.
- CENTHOR Scalable 2–18 GHz multichannel microwave up/down converter supporting up to 40 independent channels with 1 GHz bandwidth per channel, phase-coherent architecture, and full interoperability with the MIMOTHOR signal processor.
- ICEQUBE High-performance CryoPhotonic receiver operating at 1550nm with analog demodulation up to 18 GHz, designed for quantum research and RF-over-Fiber applications in cryogenic environments.
Quantifiable outcome
- Targeting x100 reduction in energy consumption for large-scale quantum processors through photonic control solutions
- +2 more outcomes
Companies that use Viqthor
Customer profileNamed customers8 records
Segments3 records
Ideal customer profiles3 records
Viqthor technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Viqthor partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core, supporting and minor.
- CEA (Commissariat à l'énergie atomique et aux énergies alternatives)coreCollaboration with CEA-IRFU and PHELIQS to measure spin qubits using VIQTHOR's quantum control system integrated with RFSoC FPGA and QICK open-source control codes. The partnership demonstrates VIQTHOR's capability in quantum hardware control for semiconductor spin qubit research.
- Quantum Energy Initiative (QEI)coreVIQTHOR has partnered with the Quantum Energy Initiative to advance energy-efficient quantum computing solutions. The company signed the Memento and is committed to reducing the energy footprint of quantum processors, targeting a 100-fold reduction in energy consumption for large-scale quantum systems.
- IRT NanoelecsupportingIRT Nanoelec supported the CEA collaboration through the CEA-PTC program, providing framework for quantum technology development and collaboration between research institutions and technology providers.
- MinalogicsupportingVIQTHOR participates in Minalogic Innovation Talks events, a competitive cluster for digital and embedded software technologies in the Auvergne-Rhône-Alpes region, to showcase photonic technologies for quantum applications.
- France QuantumsupportingVIQTHOR is an active member of France Quantum, the national quantum ecosystem organization that promotes collaboration between public and private stakeholders in quantum technologies.
- Systematic Paris-RegionsupportingVIQTHOR is a member of the Systematic competitiveness cluster celebrating its 20th anniversary, which brings together startups, SMEs, research labs, and corporations for collaborative innovation projects in the Paris-Saclay region.
- WelinqminorVIQTHOR participated alongside Welinq in Tech for Good Awards segment at VivaTech 2023, discussing hybrid quantum computing and France's leadership in quantum innovation.
- OVHcloudminorVIQTHOR appeared on BFM Business Tech & Co segment alongside OVHcloud during VivaTech 2023 Tech for Good Awards, discussing hybrid quantum computing and strengthening Europe's quantum ecosystem.
- CEAcoreVIQTHOR collaborates with CEA on photonics routing and cryophotonics for large-scale quantum computers as part of the Nanoelec/Q-Loop program, contributing to cryophotonic solutions for quantum computing scalability.
- iXcampuscoreVIQTHOR is headquartered at the iXcampus in Saint-Germain-en-Laye, a campus dedicated to quantum and deeptech innovation that hosts the company and facilitates ecosystem collaboration. The former French Prime Minister Édouard Philippe visited VIQTHOR at this location.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
Viqthor competitors and assessment
Company assessmentDirect peers
- Quantum Machines: Israel-based provider of quantum control hardware and orchestration software (OPX, QUA) for superconducting and trapped-ion quantum processors. Directly competes with Viqthor's MIMOTHOR/CENTHOR/MENTHOR platform in the same customer base of quantum hardware makers and research labs.
- Zurich Instruments: Swiss maker of SHF, HDAWG, and PQSE quantum control electronics and lock-in amplifiers, now part of Rohde & Schwarz. Directly competes across quantum AWG, upconversion, and signal processing functionality overlapping with Viqthor's product stack.
- Qblox: Dutch supplier of scalable qubit control and readout stacks (Cluster, Qubit Reader) targeting superconducting quantum computers. Directly comparable as a focused quantum control electronics peer serving similar customers with modular hardware.
- Delft Circuits: Dutch startup specializing in cryogenic RF and high-density wiring solutions (Cri/oFlex, Loki) for superconducting quantum computers. Directly comparable to Viqthor's RF-over-fiber cabling approach as both target the cryogenic interconnect bottleneck.
Broad incumbents
- Keysight Technologies: Global test-and-measurement incumbent whose AWG, digitizer, and vector signal analyzer products are widely used in quantum research labs. Competes with Viqthor in broader RF/microwave instrumentation even though quantum control is not its sole focus.
- Rohde & Schwarz: German RF/microwave test and measurement leader that acquired Zurich Instruments to expand in quantum. Provides signal generators, spectrum analyzers, and now the Zurich Instruments quantum portfolio that competes with Viqthor's offerings.
- National Instruments (Emerson): Test-and-measurement incumbent with PXI-based AWG/digitizer platforms and the open-source QICK project (developed at UChicago) that Viqthor's MIMOTHOR is built upon. Adjacent competitor and enabling ecosystem participant in quantum control stacks.
- MKS Instruments: US precision instrumentation group owning Newport and former ESI/Laser Quantum brands with RF/microwave and photonics test capabilities relevant to quantum research. Broad incumbent serving many of the same quantum lab customers as Viqthor.
Others
- Bluefors: Finnish manufacturer of dilution refrigerators and cryogenic measurement systems. Adjacent ecosystem participant — Viqthor's hardware is integrated into Bluefors cryostats in customer labs and the companies' product roadmaps are tightly coupled.
Emerging players
- Tabor Electronics: Israeli maker of high-frequency arbitrary waveform generators and signal sources used in quantum and radar applications. Emerging player with partial overlap to Viqthor's signal generation and frequency conversion products.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Viqthor social profiles
Digital presenceViqthor financial estimates
Financial estimateRevenue estimate
Valuation estimate
Viqthor leadership team
Management profileNumber of profiles
Profiles7 records
Viqthor funding detail
Funding detailFunding overview
Funding rounds1 record
Investors4 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Viqthor 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 Viqthor
What does Viqthor do?
Viqthor designs and manufactures modular RF, microwave, and photonic hardware systems — MENTHOR (RF-over-Fiber transmitter), MIMOTHOR (microwave signal processor), CENTHOR (up/down converter), and ICEQUBE (cryogenic photonic receiver) — that enable scalable control of quantum processors. Their products replace traditional coaxial cables with optical fibers to reduce heat loads in cryogenic environments, targeting energy-efficient control of up to one million qubits for quantum computing companies, research laboratories, and aerospace/defense organizations.
Is Viqthor a public or private company?
Viqthor is a private company. It is classified as venture growth investor backed and is currently operating.
When was Viqthor founded?
Viqthor was founded in 2022. It employs 1 to 10 people.
Where is Viqthor based?
Viqthor is headquartered in Saint-germain-en-laye, France, in the Europe region.
How does Viqthor make money?
One revenue line is on record: quantum Control Hardware Sales.
Who are Viqthor's main competitors?
Direct peers on record are Quantum Machines, Zurich Instruments, Qblox and Delft Circuits. Broad incumbents are Keysight Technologies, Rohde & Schwarz, National Instruments (Emerson) and MKS Instruments. Bluefors is listed as an others. Tabor Electronics is listed as an emerging player.
Does Viqthor have an API?
No public API is recorded for Viqthor.
What industry is Viqthor in?
Viqthor's product category is Quantum Computing Control Hardware. Its primary akta.pro industry code is HDAGABAF, Quantum Control Electronics (AWG/DAC/ADC, Timing & Synchronization), with a secondary code of HDAGABAG, Microwave/RF Signal Generation, Up/Downconversion & LO Chains. Its NAICS code is 334220 and its SIC code is 3663.