Key facts
- Impulse Space raised $500 million in Series D funding.
Impulse Space raises $500M at $4.26B valuation
IN SHORT
Impulse Space, an orbital transfer vehicle startup founded by SpaceX's first employee Tom Mueller, has raised $500 million in Series D funding at a $4.26 billion valuation. The round was co-led by 137 Ventures and Banner VC, with participation from existing investors. The company develops spacecraft for in-orbit payload delivery and propulsion systems.
Key Numbers
$500 millionSeries D funding amount
$4.26 billioncompany valuation
more than $1 billiontotal capital raised by Impulse Space
threemissions flown by Impulse Space
2027year for Helios vehicle's first flight
Who's Involved
Impulse Space
startup building spacecraft for in-orbit payload delivery
Tom Mueller
Founder and CEO of Impulse Space, former SpaceX executive
137 Ventures
Venture firm co-leading the funding round
Banner VC
Venture firm co-leading the funding round
SpaceX
Company whose IPO filing has spurred investor interest in space sector
Founders Fund
Investor in Impulse Space
