Impulse Space raises $500M Series D, valued at $4.26B
Key takeaways
- The round values the Redondo Beach, California company at $4.26 billion, according to Reuters.
- Mueller, who serves as CEO, said the company is building infrastructure to enable movement across orbits and beyond Earth.
- The company develops spacecraft designed to move satellites and other payloads after they reach orbit — vehicles sometimes called space tugs.
Impulse Space raises $500M Series D, valued at $4.26B Quartz · RONALDO SCHEMIDT / Getty Images Cris Tolomia Tue, June 2, 2026 at 9:43 PM GMT+7 2 min read SPAX.PVT Impulse Space announced a $500 million Series D funding round on Tuesday, bringing its total capital raised to more than $1 billion as investor appetite for post-launch space infrastructure grows.
The round values the Redondo Beach, California company at $4.26 billion, according to Reuters. It was co-led by 137 Ventures and BANNER VC, with additional participation from Founders Fund, Lux Capital, and Linse Capital, the company said.
At the helm of Impulse Space is Tom Mueller, a propulsion engineer who built his reputation at SpaceX as the driving force behind the engine technology that propelled Elon Musk s rocket company to the top of the launch industry, according to Reuters. Mueller, who serves as CEO, said the company is building infrastructure to enable movement across orbits and beyond Earth. "Launch has pretty much been solved. The challenge now is getting everywhere else beyond low Earth orbit," Mueller told Reuters.