The round also included participation from other returning investors like Lux Capital and Spring Tide, as well as attracting new investors, such as DCVC. Other participants in the funding round included Airbus Ventures, Alumni Ventures, Balerion Space Ventures, RTX Ventures, Tamarack Global, 137 Ventures, Elysium, First Principles Group, Island Green, Overmatch, and Trousdale Ventures. The funding, which follows a series of recent milestone moments for the company, will be used to further grow the Impulse team and to support the ongoing production of both the Helios and Mira vehicles. The Series B round brings Impulse's total funding to date to $225 million.

Impulse Space, the in-space transportation company founded by Tom Mueller, is opening access beyond Low Earth Orbit (LEO) with its fleet of in-space transportation vehicles. The flight-proven Mira vehicle uses a nontoxic, high-impulse chemical propulsion system to offer orbital transport, constellation deployment, and precision reentry services to customers from LEO to GEO. The high-energy Helios vehicle unlocks orbits beyond LEO with its powerful Deneb engine, dropping off payloads in MEO, GEO, heliocentric, lunar, and other planetary orbits. Led by a team that delivered the most reliable rockets in history, Impulse provides economical and efficient in-space transportation by reliably and rapidly getting customers where they want to go.