C12

Other B2B Software · Paris, France · Founded 2020

Building reliable quantum computers using carbon nanotubes MoreLess

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.

Valuation $0–100M

Headcount <100

Total funding $10–50M

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Company overview

C12 company information

The essential company record, classifications and operating signals in one place.

Status: Operational
Founded: 2020
Headquarters: Paris, France
Employees: 80
Open positions: 13
Dealroom signal: 84.4

Website ↗LinkedIn ↗X ↗

client focusb2btechnologyDeep TechtechnologyNanotechtechnologyQuantum Technologiesbusiness modelManufacturingbusiness modelSaaSsectorQuantum ComputingsectorSpinoutsectorEICsectorIndustrial TechnologysectorQuantum ComputerssectorEIC FundsectorFuture of ComputingsectorQuantum Computers and Processors

Valuation & funding

C12 funding history

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	↗
GRANT✓Other financing	Mar 2024	$0	—	France 2030 · French Ministry of Defence	↗
GRANT✓Other financing	Jun 2022	$2.5M	—	European Innovation Council	—
EARLY VC✓Equity / VC	Jun 2022	$0	—	EIC Fund	—
SEED✓Equity / VC	Jun 2021			Airbus Ventures · Octave Klaba · BNP Paribas Développement · 360 Capital	—
SUPPORT PROGRAM✓Other financing	Sep 2020			Agoranov	↗
SPINOUT✓Other financing	Dec 2019			École normale supérieure – PSL University · PSL University · French National Centre for Scientific Research - CNRS · CNRS Innovation	↗
SUPPORT PROGRAM✓Other financing	Oct 2018			HEC Challenge+ · HEC Paris	—

Showing 9 recorded eventsUnlock the complete deal history →

Financials

Revenue, earnings and profit over time

Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.

Year	Profit	Margin
2026	−$366K	—
2025	−$366K	—
2024	−$366K	—
2023
2022
2021
2020

Company filings, research estimates and Dealroom dataOpen the full financial model →

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 visits60 observations · Jun 2021–Jul 2026

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Hiring

Open positions at C12

Current openings linked to this company in Dealroom.

8 distinct openings shownExplore hiring signals →

Comparisons

C12 compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in 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

Showing 8 of the closest matchesCompare every metric →

Talent graph

C12's talent

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Team profiled 13 named & role-tagged

Founders /100 quality score

Key operators 2 quality /100

Potential founders likely future founders

Startup mafia alumni-founded startups

Talent movements in · out past 12 months

Source: Dealroom Talent Intelligence.

Investors

22 investors on C12's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Seed 8 investors entered at this stage

360 Capital

Airbus Ventures

Octave Klaba

BNP Paribas Développement

Bpifrance

European Innovation Council

France 2030

French Ministry of Defence

Series A 3 investors entered at this stage

EIC Fund

Verve Ventures

Varsity

Other known 11 additional known investors

HEC Paris

Agoranov

CNRS Innovation

École normale supérieure – PSL University

French National Centre for Scientific Research - CNRS

HEC Challenge+

PSL University

Creative Destruction Lab

Olivier Rameil

PC’Up Incubator

Stake Capital

Global footprint

Where C12 has talent and traffic

Workforce by country

6 countries with
team presence

🇫🇷 France91.5%

🇮🇹 Italy1.7%

🇬🇧 United Kingdom1.7%

🇫🇮 Finland1.7%

🇺🇸 United States1.7%

Top 5 of 6 shown

In the news

Latest news about C12

Recent press, funding announcements, and product moves mentioning C12 — open to read from the original sources.

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Market sentiment

What the market is saying about C12

An AI-synthesized read of the highest-engagement posts about C12 on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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