Unclassified // open-source data on European defence tech
Space & ISR sector
Sofia, Bulgaria

EnduroSat

Designs, builds and operates software-defined nanosatellites and ESPA-class spacecraft for commercial and government missions.

Italy at night, seen from the International Space Station. Photo: NASA, Public domain (PD-USGov-NASA-AP).

Latest round$205MSeries C, Sep 2026
Total raised~$300M~$300M

Round details

Series C, $205M, Sep 2026.

Why it matters

Valuation above $1B after the Sep 2026 round; moving FRAME satellites into serial production.

Key figures confirmed by multiple sourcesLast checked 21 October 2026

EnduroSat: key questions

What does EnduroSat do?

Designs, builds and operates software-defined nanosatellites and ESPA-class spacecraft for commercial and government missions.

Where is EnduroSat based?

EnduroSat is headquartered in Sofia, Bulgaria. It was founded in 2015.

How much funding has EnduroSat raised?

Total funding is ~$300M, based on announced and reported rounds. Latest round: Series C, $205M, Sep 2026.

Who are EnduroSat's investors?

Notable investors include Riot Ventures, Atreides Management, Founders Fund.

Sources

  1. therecursive.com/bulgarian-endurosat-raised-eur178-million/
  2. caplight.com/company/endurosat

Figures come from company announcements and press reports. Spot an error? Send a correction. Nothing here is investment advice.

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