Muon Space raises $250M at $1.5B valuation to scale satellite output

Satellite builder Muon Space Inc. today revealed that it had raised $250 million in new funding to scale satellite production. According to Reuters, the round was raised at a valuation of $1.5 billion.

Founded in 2021, Muon sells what it calls a Mission Foundry. Rather than supplying spacecraft or components to a prime contractor, it takes on mission design, manufacturing, payloads, flight software, launch and on-orbit operations under a single contract. The pitch to customers is speed: constellations delivered in months instead of the multiyear cycles that have defined the industry.

Most of the new money is going into building more of them, faster. Muon opened an advanced manufacturing plant in San Jose in June that is designed to turn out up to 500 satellites a year by 2027, roughly 10 times its previous ceiling. The company has more than 50 satellites in development for customers and 13 already booked for launch over the next 12 months.

The company has been busy, with seven satellites being launched in the first half of 2026, bringing Muon’s total to 11 across six launches with no mission failures.