Impulse Space, a leader in in-space transportation, has announced the successful closure of a $300 million Series C funding round, marking one of the largest private capital raises in the space industry. The round was led by Linse Capital, with participation from new investor DFJ Growth and returning investors including Valor Equity Partners, Founders Fund, Lux Capital, RTX Ventures, DCVC, Airbus Ventures, Spring Tide, First Principles Group, Balerion Space Ventures, Tamarack Global, and Trousdale Ventures.
Founded in 2021 by Tom Mueller, a founding member of SpaceX and the architect behind the Merlin engine family, Impulse Space has rapidly established itself as a frontrunner in the field of in-space mobility. The company has secured over 30 commercial and government contracts, totaling nearly $200 million in value, and has successfully launched its Mira vehicle on two customer missions. Additionally, Impulse is developing Helios, a high-energy kick stage designed for payload delivery to medium Earth orbit (MEO), geostationary orbit (GEO), and beyond, with a planned launch in 2026.
The newly acquired funds will be utilized to scale production, expand the team across engineering, manufacturing, and mission operations, and accelerate research and development efforts. This includes the expansion of mission profiles and the integration of electric propulsion systems to meet the growing demand for faster, more flexible, and cost-effective in-space mobility solutions across commercial, civil, and defense sectors.
Bastiaan Janmaat, Managing Partner at Linse Capital, commented, “Impulse is tackling one of the most technically demanding challenges in aerospace with a speed and precision we rarely see. Their vertically integrated approach, proven track record, and ability to execute quickly in this market give them a real advantage
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