Impulse Space
Space propulsion startup Impulse Space closes major 2026 funding round — full breakdown of valuation, investors, and how it compares to top AI raises.
Overview
Impulse Space is a rocket engine startup operating in the space technology market, building propulsion-related hardware for customers and partners across the aerospace sector. The company is positioned outside the AI software category and is better classified as deep tech. The company raised $500 million in an undisclosed round announced on June 2, 2026. The round description emphasizes that the capital is intended to help hire people rather than invest in AI, underscoring a hardware- and workforce-driven growth strategy.
Funding History
Rocket engine startup Impulse raises $500 million to hire people, not AI
Impulse Space raised Series B funding to scale its in-space transportation systems and support development of the Helios high-energy kick stage.
Impulse Space raised Series A funding to accelerate development of its orbital transfer vehicles, including Mira and Helios.
Impulse Space raised seed funding to build in-space transportation vehicles and propulsion systems after its founding by former SpaceX propulsion leader Tom Mueller.
Frequently Asked Questions
- How much has Impulse Space raised in total?
- Impulse Space has raised a total of $725M across 4 funding rounds.
- Who are Impulse Space's investors?
- Impulse Space's investors include Founders Fund, Lux Capital, Undisclosed, RTX Ventures, Linse Capital, and 2 others.
- What does Impulse Space do?
- Impulse Space is a rocket engine startup operating in the space technology market, building propulsion-related hardware for customers and partners across the aerospace sector. The company is positioned outside the AI software category and is better classified as deep tech. The company raised $500 million in an undisclosed round announced on June 2, 2026. The round description emphasizes that the capital is intended to help hire people rather than invest in AI, underscoring a hardware- and workforce-driven growth strategy.
- Where is Impulse Space headquartered?
- Impulse Space is headquartered in Redondo Beach, United States.
Investors
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