EnduroSat

EnduroSat is a space company headquartered in Sofia, Bulgaria. It builds satellites and satellite parts for customers around the world. The company was founded in 2015 in an attic apartment. Its first mission to space launched in 2018.

EnduroSat offers standard satellite platforms. The Frame S is a 200 kg satellite with 3.4 kW peak power. The Frame L weighs 500 kg and has 7 kW peak power. The Frame MAX weighs one to five tons and has 10 kW peak power. The company says these designs are built for serial production.

The company also makes CubeSats. These include 8U and 16U platforms and a desktop model called DeskSat. EnduroSat sells subsystems too. These include communication parts, antennas, onboard computers, power modules, solar panels and structures. Its catalogue also lists lab equipment.

The Space Service is a fixed cost offer for companies that want to run their own satellite constellations. The company says it takes a customer from idea to orbit in six months. The service cuts the cost of space data by 3000 times compared with traditional missions.

The company launched its fixed cost Space Service in 2022 and opened a new Space Center in 2025. It has 450 clients and about 350 staff in space engineering, science and technology. Its satellites are in use by customers including Vantor, TrustPoint, Tomorrow.io, Aethero, TALOS, NASA, ESA and Berkeley.

The company raised $205M in September 2026 to scale its next generation space fleets. Investors include Founders Fund, Riot Ventures, GV and Lux Capital. It also has teams for EnduroSat Italy, EnduroSat France and EnduroSat USA.

Services

• Frame S satellite platform
• Frame L satellite platform
• Frame MAX satellite
• 8U and 16U CubeSats
• DeskSat
• Space Service
• Communication subsystems
• Onboard computers
• Power modules
• Solar panels