6 Best Startups in Rennes to Watch in 2025

The Definitive Seedtable Ranking of Startups in Rennes

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 6 start-ups with an aggregate funding of $177.5m. The average funding per company in this subset is $29.6m.

Last update to the database: Feb 18, 2025. See changelog.

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4

Funding Rounds

$72.0m

Money raised

ProteinSimple is a San Jose, California-based company founded in 2004.

7

Funding Rounds

$25.9m

Money raised

Cailabs is a developer of light shaping for manufacturing photonic products for telecommunications, free-space transmission, industrial lasers, and local area networks.

Location:

Key people:

1

Funding Rounds

$24.0m

Money raised

unseenlabs is a maritime surveillance platform founded in 2015.

Location:

1

Funding Rounds

$1.2m

Money raised

Woleet is a company founded in 2015 by Vincent BARAT.

Location:

Key people:

1

Funding Rounds

$50.0m

Money raised

Klaxoon is a Rennes-based software company developing collaborative tools for remote teamwork.

1

Funding Rounds

$4.5m

Money raised

Video game development platform using user-generated content (UGC).

Location:

Key people:

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