IsentroniQ

What IsentroniQ does

Isentroniq is a French fabless quantum hardware startup founded in 2025 and headquartered in St-Germain-en-Laye (Paris region). The company is developing dense, near-heatless wiring technology for superconducting quantum computers that targets the principal cryogenic scalability bottleneck — heat load, wiring cost, and limited cryostat space — which currently constrains superconducting systems to roughly 1,000 qubits. The proposed solution is positioned as enabling up to 1,000× more qubits within existing dilution refrigerator infrastructure and reducing the cost of a million-qubit system from tens of billions of euros to approximately €50 million, while making systems integrable into standard datacenters. The company is led by co-founder and CEO Paul Magnard (PhD, ETH Zurich; former lead architect at Alice & Bob; multiple Nature publications) and co-founder and COO Théodore Amar (ex-Bain & Company, ex-Head of Marketing at Hilti, second-time founder).

Isentroniq operates a fabless business model: it designs the wiring architecture in-house and leverages a curated network of specialized manufacturing partners for component production, delivering an end-to-end, plug-and-play wiring system to quantum computer builders. The go-to-market is enterprise direct sales targeting the handful of superconducting quantum computing hardware companies pursuing million-qubit roadmaps — explicitly named prospects include Google, Amazon, IBM, IQM, Alice & Bob, and Rigetti. The company does not currently sell to end-user research or industry segments (pharma, materials, logistics, energy) directly; those are described as downstream beneficiaries of democratized quantum access rather than Isentroniq's customers.

The firm is pre-revenue and at pre-seed stage, having closed a €7.5M round in October 2025 led by Heartcore Capital with participation from OVNI Capital, Kima Ventures, iXcore, Better Angle, Epsilon VC, Bpifrance, and the French National Research Agency (ANR) under the France 2030 program. Use of funds is directed at wiring technology development, establishment of an engineering team (hiring for Chief of Engineering, quantum, mechanical, RF, and software engineers is underway for 2026), and the buildout of industrial partnerships. Pricing is not publicly disclosed, and there are no awarded patents or regulatory actions recorded in the source data.

Name

IsentroniQ

Legal name

Isentroniq

Website

https://isentroniq.com

Company type

Private

Founded year

2025

Operating status

Operating

Headcount range

1–10 employees

Short description

Isentroniq is a French fabless quantum hardware startup developing dense, near-heatless wiring for superconducting quantum computers to remove the cryogenic scalability bottleneck, selling plug-and-play wiring solutions to quantum computer builders such as Google, IBM, IQM, and Alice & Bob.

Ownership category

akta.pro rank

Product category

Quantum Computing Hardware Infrastructure

NAICS

Electronic Connector Manufacturing (334417)

SIC

Drawing & Insulating Of Nonferrous Wire (3357)

akta.pro primary industry

Cryogenic Wiring, Interconnects & RF Cabling (HDAGABAE)

akta.pro secondary industries

Dilution Refrigerators & Ultra-Low Temperature Platforms (HDAGABAC), Quantum Control, Cryogenics & Measurement Research (HDAGAMAC), Calibration, Characterization & Test Instrumentation (Cryo/RF) (HDAGABAM)

Keywords

• Quantum computing hardware
• Cryogenic wiring solutions
• Superconducting qubit infrastructure
• Quantum interconnect technology
• Dilution refrigerator components

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Operations, Marketing or Sales, Supply Chain

Revenue model

1. Quantum Wiring Hardware Sales: Sale of proprietary wiring infrastructure solutions for superconducting quantum computers. The company uses a fabless model, designing the architecture and leveraging a global network of specialized manufacturing partners for production. Targets quantum computer builders with end-to-end, plug-and-play solutions.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

IsentroniQ designs and sells a dense, near-heatless wiring infrastructure for superconducting quantum computers. The technology addresses the three core barriers to scaling: heat load entering the cryostat, prohibitive wiring cost, and limited physical space inside dilution refrigerators. It enables integration of up to 1,000× more qubits into existing cryogenic infrastructure, supporting systems of over one million qubits while reducing total system cost from tens of billions to approximately €50 million.

Product overview

IsentroniQ offers a single unified core product: its Quantum Wiring Infrastructure. This superconducting wiring technology directly addresses the three key barriers to scaling quantum computers—heat load, wiring cost, and limited cryostat space—by providing dense, near-heatless signal transmission from room temperature to qubits operating at millikelvin temperatures. The technology enables quantum computer builders to scale from hundreds to potentially millions of qubits within existing infrastructure, reducing the cost of a million-qubit system from tens of billions to approximately €50M. The company operates a fabless model, designing the architecture and leveraging specialized manufacturing partners for production, delivering an end-to-end, plug-and-play solution.

Differentiator

Problem solved

Functional benefit

Products and services

• Quantum Wiring Infrastructure Dense and near-heatless wiring technology for superconducting quantum computers that addresses heat load, wiring cost, and limited space inside cryostats. Enables 1,000× more qubits to be integrated into existing dilution refrigerators, supporting systems with over one million qubits at significantly reduced costs. Delivered as an end-to-end, plug-and-play solution designed through a fabless model and manufactured via specialized partners.

Quantifiable outcome

• 1,000× more qubits in existing cryostat infrastructure
• +2 more outcomes

Named customers6 records

Segments2 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• World-Class Manufacturing PartnerscoreStrategic or Co-development PartnerIsentroniq works with the best manufacturers in each class of component, combining specialized know-how into one coherent system. Every element is rigorously tested under realistic conditions.

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Oxford Instruments NanoScience: UK-based supplier of cryostats, dilution refrigerators, and cryogenic components for quantum computing and research. Direct peer in cryogenic hardware serving superconducting QPU builders worldwide.
• Cryomech: US-based manufacturer of cryocoolers (Gifford-McMahon and pulse tube refrigerators) used as the cooling subsystem in dilution refrigerators. Upstream peer in the cryogenic supply chain serving the same end customers.
• Bluefors: Finland-based manufacturer of dilution refrigerators and cryogenic measurement systems. Most direct comparable as a cryogenic infrastructure supplier serving the same quantum computing customer base; operates one level upstream of Isentroniq in the cryostat stack.
• Quantum Machines: Israeli provider of quantum control electronics and orchestration systems for superconducting and trapped-ion quantum computers. Closely comparable business model: fabless quantum infrastructure hardware sold to the same enterprise R&D and commercial customers.
• Lake Shore Cryotronics: US-based supplier of cryogenic temperature sensors, instrumentation, and probe stations used in quantum computing and low-temperature physics. Adjacent cryogenic hardware vendor serving overlapping quantum R&D customers.
• Zurich Instruments: Swiss maker of RF lock-in amplifiers and quantum computing control systems. Direct peer in control electronics sold to superconducting quantum labs and commercial builders; complementary rather than overlapping product line.

Emerging players

• Qblox: Netherlands-based startup providing scalable quantum control stacks for superconducting qubit systems. Comparable fabless-style hardware vendor targeting the same customer base, focused on control rather than cryogenic wiring.

Broad incumbents

• FormFactor: US-listed provider of advanced cryogenic probe stations and test/measurement systems used in quantum device characterization. Adjacent incumbent in cryogenic test infrastructure for quantum and semiconductor markets.
• Alice & Bob: French superconducting qubit company (cat qubits) and named target customer. Comparable as a France-based deep-tech quantum hardware startup, with former Isentroniq CEO Paul Magnard as ex-lead architect.
• IQM Quantum Computers: Finnish superconducting quantum computer builder pursuing 1M-qubit roadmap by 2030. Listed as a target customer but also a potential vertical integrator of cryogenic subsystems in-house.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/isentroniq

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds2 records

Investors9 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about IsentroniQ