Quobly raises €115 million, the largest quantum hardware Series A in France

The essentials. Quobly, a Grenoble-based silicon quantum computing startup founded in 2022, is raising €115 million in Series A funding. STMicroelectronics and Air Liquide are joining the cap table alongside Bpifrance, Quantonation and the European Innovation Council. The round brings total funding to €155M and targets a first computer in 2027.

Key takeaways

• €115M in Series A — according to CEO Maud Vinet, "the largest quantum hardware Series A to date".
• Total raised since 2022: €155M (€40M + €115M).
• STMicroelectronics (manufacturing) and Air Liquide (via Aliad) join the cap table — two industrial players, not just funds.
• Goal: grow from 100 to 300 employees in two years, with a first computer delivered in 2027.
• €10M in revenue already signed, including the French army (Proqcima program) and cloud access via OVHcloud.

What Quobly does

Quobly builds quantum computers using silicon — the same material as our classical processors. The bet is simple to state, hard to deliver: encoding quantum information in spin qubits etched on 300 mm wafers, the same ones used by existing semiconductor foundries.

Why it matters? Most competitors — superconductors, trapped ions, neutral atoms — build their chips by hand, in small batches, in dedicated labs. Quobly, by contrast, wants to build on mature microelectronics infrastructure to aim for scale. The company claims “1 million qubits and their control electronics on a coin-sized chip” and a system that fits in three datacenter racks. More than 2.4 million qubits have reportedly already been fabricated with STMicroelectronics.

The target: industries facing chemistry, materials, optimization, and logistics problems — exactly where fault-tolerant quantum computing promises an advantage. On the traction side, Quobly already reports €10M in revenue, the French army through the Proqcima program, and a partnership with OVHcloud for cloud access. Founded by Maud Vinet (ex-CEA-Leti, now CEO) and Tristan Meunier, the company is based in Grenoble, with offices in Paris and Taiwan, and subsidiaries in Singapore and Sherbrooke.

Funding round details

• Amount: €115 million.
• Round: Series A.
• Date: June 3, 2026.
• Participants: STMicroelectronics, Air Liquide (via the Aliad fund), SealSQ, the European Innovation Council, Blast, Quantonation, Supernova Invest, Innovacom, and Bpifrance.
• Total raised to date: €155M since 2022 (€40M raised previously).
• Headquarters: Grenoble. Offices in Paris and Taiwan, subsidiaries in Singapore and Sherbrooke.
• Founders: Maud Vinet (CEO) and Tristan Meunier, in 2022.
• Headcount: 100 employees, targeting 300 within two years.
• Use of funds: hiring, scaling up industrial production, and delivering a first computer in 2027.

Why this funding round matters

A €115M Series A is unusual. In software, that's Series C money, even Series D. Here, the capital first funds years of hardware R&D before any significant revenue. Quantum hardware plays out on a different timeline, and this round is a reminder of that.

The first interesting signal lies in the cap table. STMicroelectronics and Air Liquide are not coming in as financial spectators: one is the manufacturing partner, the other brings a critical cryogenic building block for running qubits. When your foundry and your infrastructure supplier become shareholders, you secure your supply chain as much as your balance sheet. That's where the silicon bet makes full sense: if Quobly succeeds, the marginal cost of adding qubits could follow the economic curve of semiconductors — volume manufacturing, identical chips, capex amortized across an existing industry — rather than the artisanal path of competing platforms. The differentiator isn't just physical, it's economic.

Second reading: commercial traction ahead of technological maturity. Announcing 10 M€ in revenue and a first computer in 2027 when the product hasn't even shipped yet is rare and telling. The buyers — the army, cloud providers — are funding access and the roadmap, not a finished product. That turns customers into de facto co-investors, and it reduces dependence on venture capital alone.

Third reading: timing. The round comes after the announcement of a one-billion-euro public plan for the quantum sector. Private money and public money are answering each other. For a sector where the path to profitability is measured in years, this alignment is no small detail: it extends the funding runway and makes the trajectory credible in the eyes of customers.

What this round reveals about the quantum market in 2026

Beyond Quobly, this round says three things about the state of quantum computing in 2026.

Silicon is establishing itself as a credible path

For years, quantum has been a contest between superconductors and trapped ions. The silicon bet — also backed by Intel and labs like Delft — is gaining credibility because it answers the real question: how do you go from a few dozen to millions of qubits without reinventing an industry? Building on existing microelectronics is a scalability argument, not a marketing one.

Strategic industrial players are taking control of the cap table

Having industrial players as shareholders, and not just funds, is becoming a marker in deeptech. It secures the supply chain, speeds up industrialization, and sends a signal of sovereignty. When a foundry commits its name and its money, it implicitly validates technical feasibility. It's a filter few quantum startups can pass.

The French ecosystem is taking shape around a handful of champions

With Pasqal, Alice & Bob, Quandela, C12 and now Quobly at this funding level, France is concentrating its bets on a small group of players with distinct technological approaches. The strategy looks less like a scattergun approach and more like a diversified portfolio: several technologies, one shared goal of sovereignty. What to watch: these champions' ability to convert R&D into recurring revenue before the funding window closes.

FAQ

How much has Quobly raised?
€115 million in Series A, announced on June 3, 2026. With the €40 million raised since 2022, the cumulative total reaches €155 million.

Who invested in Quobly?
STMicroelectronics and Air Liquide (via Aliad) are joining the cap table, alongside SealSQ, the European Innovation Council, Blast, Quantonation, Supernova Invest, Innovacom and Bpifrance.

What exactly does Quobly do?
Quobly develops quantum computers based on spin qubits etched in silicon (300 mm wafers), compatible with the microelectronics industry, with the aim of scaling up to fault-tolerant systems.

Who runs Quobly?
The company was co-founded in 2022 by Maud Vinet, its CEO, and Tristan Meunier. It is headquartered in Grenoble, with offices in Paris and Taiwan and subsidiaries in Singapore and Sherbrooke.

What will the funds be used for?
To hire (from 100 to 300 employees within two years), accelerate industrialization with STMicroelectronics, and deliver its first quantum computer in 2027.

Sources

• Maddyness, “Quantum: Quobly raises €115 million with STMicroelectronics and Air Liquide joining its capital”, retrieved 2026-06-04, https://www.maddyness.com/2026/06/03/quantique-quobly-leve-115-millions-deuros-avec-stmicroelectronics-et-air-liquide-a-son-capital/
• Quobly, official website, retrieved 2026-06-04, https://quobly.io