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The startup scene in France
Le Poool describes historic strengths in signal processing, cybersecurity, and the Internet of Things alongside newer activity in AI, deeptech, and space. It places this sector picture within the Rennes–Saint-Malo and Ille-et-Vilaine ecosystem, not solely within Rennes city. (As of March 31, 2026.)
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Le Poool describes historic strengths in signal processing, cybersecurity, and the Internet of Things alongside newer activity in AI, deeptech, and space. It places this sector picture within the Rennes–Saint-Malo and Ille-et-Vilaine ecosystem, not solely within Rennes city. (As of March 31, 2026.)
Le Poool reports startup investment of €118 million across its mapped territory in 2025, down 49% from €234 million in 2024; these are territory-level figures, not Rennes city totals. It also associates a reported €57 million Cailabs financing round in 2025 with the company’s Rennes factory.
Startup ecosystem standing
Where Rennes ranks
| Ranking | Edition | Position | Since last edition | Trust | What it measures |
|---|---|---|---|---|---|
 Global Startup Ecosystem Index (cities) | 2025 | #268 | No prior edition | B | Ecosystem, Activity, Finance, Business Climate |
6 organizations with a profile
Who's based in Rennes
Investors 4
Investor
InvestorEmpowering innovative startups in Brittany.
InvestorInvesting in local initiatives for a sustainable future.
The 3 most prominent of 4. Browse all investors
Incubators 2
IncubatorFostering student entrepreneurship in Brittany.
IncubatorSupporting adventurous projects in sports and ecology.
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Your way in
Raising in Rennes
Investors based here, and the programs that take teams at your stage.
Get investor introsFinding startups in Rennes
Accelerators and incubators here see the earliest teams first.
Get startups that fitScouting in Rennes
Campuses and communities are where teams form before anyone funds them.
Start scoutingFrom public sources
What the sources say about Rennes
Le Poool reports a slowdown in new cybersecurity project flow.
Source: French Tech Rennes St-Malo mappingLe Poool identifies public agencies and academic contributors to Rennes’ cybersecurity ecosystem.
Source: French Tech Rennes St-Malo mappingOuest Valorisation states that its regional company creation support spans more than 160 academic labs.
Source: Start-upOuest Valorisation directs prospective founders and investors to its Zone de Matching.
Source: Start-upKlaxoon’s own chronology lists the Wrike acquisition and Board AI assistant under 2025.
Source: À propos de KlaxoonKlaxoon says its headquarters are in Rennes and it also has a Paris presence.
Source: À propos de Klaxoon
Questions about Rennes
How does Rennes rank as a startup ecosystem?
Its best position is #268 in StartupBlink Index (cities) (2025).
How many startup investors are based in Rennes?
4 investors based in Rennes have a profile here, including The Moon Venture, Business Angels 35 and CIGALES de Bretagne. The real number is higher.
Are there accelerators or incubators in Rennes?
Yes. Rennes has 2 incubators on record, including PEPITE Bretagne.
Geographic proximity
Nearby cities to Rennes
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