- Impulse Space has raised $500 million in fresh funding, pushing total investment past the $1 billion mark
- The capital will help ramp up production of spacecraft, propulsion technologies and orbital mobility services
- The company is expanding manufacturing capacity and hiring to meet demand for in-space transportation
In-space mobility firm Impulse Space has secured $500 million in Series D funding, pushing its total capital raised to over $1 billion. The Redondo Beach, California-based company said Wednesday the round was co-led by 137 Ventures and BANNER VC. Other participating investors included Founders Fund, Lux Capital and Linse Capital.
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How Will the New Capital Be Utilized?
According to Impulse, the funding will be used to scale production of in-space mobility infrastructure, including spacecraft, propulsion systems and operational capabilities for orbital maneuvering. The investment will also help the company expand its workforce and manufacturing capacity as demand for spacecraft mobility services after launch grows.
What Capabilities Is Impulse Space Developing?
Impulse’s portfolio includes Mira, a precision maneuvering spacecraft that has flown multiple missions and demonstrated autonomous rendezvous and proximity operations. The company is also developing Helios, a high-energy kick stage expected to be deployed in 2027 that will enable faster delivery of payloads to distant orbits, and Caravan, a rideshare service designed to expand access to higher-energy orbits such as geostationary Earth orbit. In addition, Impulse is building propulsion systems for orbital repositioning, long-range transport and throttleable applications.
The funding follows Impulse’s $300 million Series C round announced in June 2025 and comes amid continued expansion of the company’s government and commercial activities. In August 2025, NASA selected Impulse to conduct studies evaluating how its Mira and Helios vehicles could provide lower-cost access to challenging orbital destinations. The company further expanded its presence in March by opening a Washington, D.C., office, complementing its facilities in Redondo Beach, California, and Boulder, Colorado, while also expanding its test facility in Mojave, California.
