Muon Space closes $250 million Series C to scale satellite production

Muon Space, a Mountain View, California-based satellite maker, has closed a $250 million Series C round to scale satellite production and add orbital AI-computing capacity, the company said.

Eclipse Capital led the round, with new backing from Google, Salesforce Ventures, Wellington Management, I Squared Capital, Galvanize and Woven Capital, alongside existing backers. The financing brings Muon’s total equity raised to more than $386 million.

The company said it has 11 satellites operating in orbit with a 100% mission-success rate and plans to expand its San Jose factory to build up to 500 small satellites a year by 2027. Part of the new capital will go toward computing hardware that runs on the satellites themselves, pushing data processing into orbit rather than beaming everything back to the ground.

Chief executive Jonny Dyer said the company built its Mission Foundry so customers can “deploy complete constellation systems in months instead of years.”

The raise lands amid a wider rush to put AI compute in space, where startups pitch abundant solar power and passive cooling as an answer to the strain data centers put on terrestrial grids. Muon’s track record is more conventional — building and flying working satellites — which may reassure investors wary of orbital-compute ventures that have yet to prove the economics.

The 500-satellites-a-year target is a stretch from 11 on orbit today. Hitting it, and turning space-based processing into paying work, will show whether the constellation-factory model scales as fast as Muon says.