Bulgarian spacetech EnduroSat raises $104M to accelerate satellite production and constellation deployment

EnduroSat, a Bulgarian satellite technologies and services company, has closed a $104 million funding round. The round was backed by Riot Ventures, Google Ventures, Lux Capital, European Innovation Council Fund, and Shrug Capital.

About EnduroSat 

• EnduroSat was founded in 2015 by Raycho Raychev and Stanimir Gantchev. The company designs and engineers spacecraft for business applications and space exploration missions. 

• EnduroSat develops advanced Endurance Gen3 satellites modular, high-performance, and designed for fast assembly and versatile applications. Their ESPA-class satellites (200-500kg) support rapid deployment of complex payloads like hyperspectral imaging and radar. 

• Alongside innovative hardware, EnduroSat offers a full Space Service covering all mission phases, helping customers reduce risks, costs, and complexity while focusing on their core goals.

Investment details 

The round was backed by Riot Ventures, Google Ventures, Lux Capital, European Innovation Council Fund, and Shrug Capital.

EnduroSat has opened a new Space Center in Sofia, expanding its capacity to meet growing global demand for small and mid-sized satellite constellations. The facility enables production of up to two 200–500 kg satellites per day and includes RF, hardware, and mechanical labs, ISO-certified clean rooms, and full space qualification facilities.

EnduroSat will use the $104 million funding to scale satellite production, enhance manufacturing efficiency, and accelerate delivery of small and mid-sized constellations, supporting its mission to make space data more accessible and affordable.

Earlier that year, EnduroSat raised €43 million to scale Gen3 satellite production and expand R&D center