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Cailabs

French photonics company in Rennes that builds optical ground stations, the telescopes that catch laser signals from satellites, and is launching a shared network of them as a service.

Products, by altitude

On the ground · 0 km · Earth’s surface

  • In development

    OGSaaS by Cailabs

    Rentable network of laser ground stations for satellites

  • In service

    TILBA-OGS

    Ground station that receives laser signals from satellites

Known rounds

DateRoundAmountLed by
Sep 2025Equity plus EIB loan€57MEuropean Investment Bank⁠1
Dec 2022Venture round€26MNewSpace Capital⁠2
Oct 2019Venture round€8MSupernova Invest⁠3
Jul 2017Venture round€5M—⁠3
Jul 2016Venture round€1MStarquest Capital⁠4
Nov 2013Seed€2.6M—⁠3

Milestones

  • Oct 2026 Durri Space contracted Cailabs to deploy three optical ground stations across Oman, targeted to be operational by 2028. Company statement⁠5
  • Sep 2026 Cailabs and RBC Signals signed a memorandum of understanding to explore hosting Cailabs optical ground stations on RBC Signals sites. Company statement⁠6
  • Sep 2026 Cailabs said construction of Factory 27, a 10,000 square meter plant in Rennes able to build up to 50 optical ground stations a year by 2028, was on schedule, with a US site to follow. Company statement⁠7

Sources

  1. European Investment BankSep 12, 2025
  2. CailabsDec 8, 2022
  3. FrenchWebOct 3, 2019
  4. Le Journal des EntreprisesJul 4, 2016
  5. CailabsOct 15, 2026
  6. CailabsSep 10, 2026
  7. CailabsSep 3, 2026
  8. Cailabs (our company)

Updated Oct 22, 2026 · How we source facts · Suggest a correction