EnduroSat

SpaceTech · Sofia, BG · endurosat.com

Designs, builds, and operates ESPA-class satellites for constellation operators.

Founders

Raycho Raychev (Bulgaria · ♂) — After founding a space-education program and studying space administration, he gathered young engineers in a Sofia attic in 2015 to build EnduroSat's software-defined nanosatellites and make space accessible to businesses and scientists.

Shares the most investors with (number = shared investors):

Date	Round	Amount
Oct 2025	Funding round EnduroSat raised $104 million from Riot Ventures, Google Ventures, Lux Capital, EIC Fund and Shrug Capital, inaugurating a new space centre in Sofia.	$104M
Aug 2021	Debt Bulgarian space company EnduroSat raised EUR 10M in venture debt from the European Investment Bank.	$11.8M

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