EnduroSat

EnduroSat builds modular satellites in Sofia, Bulgaria, from 70kg spacecraft up to five-tonne platforms, and has launched 103 of them since Raycho Raychev founded the company in 2015. In September 2026 it raised $205 million, about EUR 178 million, led by Riot Ventures and Atreides Management, with the European Innovation Council, Google Ventures, Founders Fund, and Lux Capital alongside. The round took it past a $1 billion valuation, making it Bulgaria's first space unicorn, and it was the third raise in sixteen months. The Sofia site is a designated national priority investment; the new money also opens a US manufacturing facility.