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

Muon Space Inc., a satellite builder founded in 2021, has secured $250 million in new funding to rapidly expand its satellite production capabilities. The Series C round, valued at $1.5 billion, was led by Eclipse Capital, with additional participation from Galvanize, Google, Salesforce Ventures, Wellington Management, I Squared Capital, Woven Capital, and several other venture capital firms.

The funds will be primarily used to build more satellites faster, with the company opening an advanced manufacturing plant in San Jose in June to produce up to 500 satellites per year by 2027 – 10 times its previous capacity. Muon Space currently has over 50 satellites in development and 13 already booked for launch within the next year, having launched seven satellites in the first half of 2026.

Two customer constellations are set to enter service this year, including Vindlér 2.0 for Sierra Nevada Corp. and FireSat, a global wildfire-detection constellation developed with Earth Fire Alliance and Google.org, recognized among TIME's Best Inventions of 2025. CEO Jonny Dyer emphasizes the need for space infrastructure to scale like cloud infrastructure, stating that the Mission Foundry model allows customers to deploy complete constellation systems in months rather than years.

The new funding will also support advanced payloads, on-orbit artificial intelligence, and high-bandwidth connectivity through a partnership with SpaceX's Starlink. Despite strong commercial demand, a portion of the capital is allocated for government contracts, which are growing quickly. Muon Space is considering an initial public offering, but the company's CEO notes that they are cautious about counting revenue until visibility is clearer. An IPO is not expected until 2027 at the earliest.