Impulse Space Propulsion

Impulse Space Propulsion
Description: Impulse Space Propulsion is an American aerospace company focused on developing in-space transportation solutions, specializing in last-mile delivery services for satellites and payloads. The company designs and manufactures orbital transfer vehicles (OTVs) that enable precise placement of payloads into their final orbits, facilitating efficient satellite deployment and in-space logistics. Impulse Space aims to revolutionize space transportation by providing flexible, cost-effective, and responsive solutions for commercial, governmental, and defense clients.
Vision:
To become the global leader in last-mile space delivery, supporting the growth of the space economy through innovative in-space logistics solutions.
Mission:
To provide reliable, rapid, and affordable in-space transportation solutions that enhance access to space and enable the future of on-orbit services.
Contact:
References:
Funding:
  • Seed Funding: Mar 29, 2022, $: US Dollar30 million
  • Series A Funding: Jul 24, 2023, $: US Dollar45 million
  • Series B Funding: Oct 1, 2024, $: US Dollar150 million
  • Series C Funding: Jun 3, 2025, $: US Dollar300 million
Total Funding: $: US Dollar525 million
Key Milestones:
  • Mar 2022: Closed $30M seed round led by Founders Fund.
  • Nov 2023: Performed first Vega-class Mira mission onboard SpaceX Transporter‑9, completing payload deployment and orbital maneuvers.
  • 2024: Announced Helios kick-stage development; targeting first GEO-class launch in 2026
  • Jun 2025: Raised $300M Series C funding led by Linse Capital, bringing total capital to ~$525M.
Sector:
Products & Services:
  • Mira: A compact (~300 kg) orbital transfer vehicle equipped with Saiph bipropellant thrusters (specific impulse ~290 s). Enables payload hosting, deployment, constellation insertion, and precision reentry maneuvers.
  • Helios: A high-energy kick stage powered by the Deneb liquid‑methane/LOX engine. Can transport up to ~5 tons from LEO to GEO in under 24 hours.
  • Mission Services: Provides full-stack mission support—including payload integration, orbital operations, rideshare deployment planning, and hosted payload services.
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