In-Space Mobility Company Impulse Space Bags $300 Million in Series C Funding, The Largest Venture Funding Round in Space Industry Till Date.

Founded in 2021 by Thomas Mueller(CEO & CTO), one of the top rocket scientists, founding member of SpaceX and creator of Merlin, the most reliable rocket engine in history, Impulse Space Bags $300 Million in Series C led by Linse Capital and saw participation from new investor DFJ Growth, as well as returning investors 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.

Impulse will use its Series C funding to expand its team across engineering, manufacturing, and mission operations while deepening vertical integration for greater control over cost, quality, and timelines. The company will also accelerate R&D to support new mission profiles—such as long-duration flights using electric propulsion—and develop vehicles for NASA and national security applications. Additionally, it plans to scale production of its Mira and Helios vehicles to meet increasing customer demand.

In under four years, Impulse Space has made significant strides—successfully flying its Mira vehicle on two customer missions, executing two of the largest known orbital maneuvers using nitrous-based propulsion, and securing over 30 commercial and government contracts. The company has also developed Helios, a high-energy kick stage set to launch in 2026, and unveiled a customizable GEO Rideshare Program scheduled to debut in 2027.