Impulse Space has raised $308 million in a Series D extension, bringing the total round to $808 million. The California-based in-space mobility company received backing from existing investors including 137 Ventures, Lux Capital, and Valor Equity Partners. The funding will support product development and team expansion as Impulse builds vehicles for post-launch mobility across commercial, civil, and government sectors. The company has more than doubled its headcount over the past year. Impulse recently secured significant government contracts, including selection for the US Space Force's NSSL Phase 3 Lane 1 programme and a $28 million contract extension from Space Systems Command. The company manufactures spacecraft including Mira for precision manoeuvring and Helios, a high-energy kick stage. Impulse has appointed Adam Townsend, formerly CFO of VIZIO, as its first chief financial officer.

Space-Tug maker Impulse's fundraising round tops $800 million. September 16, 2026 at 5:36 PM GMT+2 Takeaways by bloomberg aisubscribe. Impulse Space Inc., a startup working on in-space transportation technology, announced that it has raised an additional $308 million in its latest funding round, taking the total amount raised in this most recent series to $808 million. The new funds will go toward expanding Impulse's team and help with continued development of the firm's spacecraft products. The latest rounded included participation from Impulse's existing investors, including 137 Ventures, Lux Capital, Valor Equity Partners and others.

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