COMPANY PROFILE

C12

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Building reliable quantum computers using carbon nanotubes

Paris, FranceFounded 2020Other B2B Software

Valuation $50–100M Last recorded · 2024

Headcount <100 Current team size

Total funding $10–50M Disclosed equity funding

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About C12

Developer of quantum processors designed to speed up complex computing tasks. The company builds quantum computers as well as develops and accelerates experiments exploring quantum information processing applications, enabling industrial clients to avail intermediate-scale quantum applications for their operations. Keywords: Technology Hardware, Electronics Technology, Quantum Computing, Quantum Processor, Quantum Research, Quantum Sensors, Quantum Software.

Source: Dealroom company data

At a glance

Status: Operational
Founded: 2020
Headquarters: Paris, France
Employees: 80
Open positions: 13
Dealroom signal: 84.4/100
Sector: Other B2B Software, Quantum Computing, Spinout, EIC, Industrial Technology, Quantum Computers, EIC Fund, Future of Computing, Quantum Computers and Processors
Technology: Deep Tech, Nanotech, Quantum Technologies
Business model: Manufacturing, SaaS
Client focus: b2b
Links: Website LinkedIn X

Knowledge graph

News, research, reports and resources connected to this company by Dealroom

Funding history

9 recorded events

Company financing events and reported valuations.

Deal type	Date	Amount	Valuation	Investors	Source
GRANT✓Other financing	Dec 2025	$15M	—	France 2030	↗
SERIES A✓Equity / VC	Jun 2024	$20M	$79M	Bpifrance · Verve Ventures · BNP Paribas Développement · EIC Fund	↗

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Financials

Revenue, earnings and profit over time

Revenue, earnings and other financial measures where available. Years marked “E” are estimates.

Year	Profit	Margin
2026		—
2025		—
2024		—
2023		—
2022		—
2021		—
2020		—

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Growth signals

C12 website traffic

Latest recorded traffic for C12 is 5.9K monthly website visits, down 41% over the last three months. C12's team grew 9.6% over the past year.

Latest monthly visits5.9K 3-month web change-41% 1-year team growth+9.6%

Monthly website visitsJun 2021–Jul 2026

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Open positions

Openings linked to this company in Dealroom

8 distinct openings shownExplore hiring signals →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Company	Headquarters	Status	Employees	Total funding	Valuation
QUQuandelaA photonic quantum computing company providing hardware, middleware and software solutions	Massy, France	Operational	163	$76M	$220M
ABAlice & BobAlice & Bob invented self-correcting Schrödinger cat qubits. Using self-correction, they can develop the first fault-tolerant commercial quantum computers that can perform any quantum algorithm	Paris, France	Operational
PAPasqalFull-stack neutral atom quantum computing systems	Palaiseau, France	Operational
QUQuoblyUniversal Quantum Computing leveraging European Semiconductor Industry	Grenoble, France	Operational
WEWelinqProvides solutions to interconnect quantum processors in order to drastically increase their computational power and to make them quantum-accessible at a distance	Paris, France	Operational
SQSparrow QuantumOn-chip single-photon sources for quantum technologies.	Copenhagen, Denmark	Operational
CACailabsPhotonic solutions for space, industry, telecom, and defense	Rennes, France	Operational
MCMultiverse ComputingQuantum computing software for businesses, through quantum machine learning and Monte Carlo techniques	San Sebastián, Spain	Operational