Startup Impulse Space Raises $500 Million, Valued at $4 Billion

Impulse Space, a startup backed by billionaire Peter Thiel’s Founders Fund, raised $500 million in a new funding round, the company announced.

Led by Tom Mueller, an early employee at Elon Musk’s SpaceX, Impulse Space has raised roughly $1 billion since it launched in 2021 and focuses on developing “space tugs,” or spacecraft that can haul satellites across different orbits.

The Series D round values the company at $4.26 billion, including the investment, according to a person familiar with the matter.

The company so far has two vehicles. The Mira craft has flown three missions, with the ...