Impulse Space was founded in 2021 by Tom Mueller, a propulsion expert who previously served as a founding member and CTO of Propulsion at SpaceX. The company develops in-space mobility infrastructure, with vehicles that move payloads across and between orbits from LEO to MEO, GEO, and cislunar space. It designs, builds, and tests the majority of its vehicles in-house, an approach the company says ensures unmatched reliability, accelerates delivery, and reduces cost.
facts
countryUnited States
founded2021
focusIn-space mobility infrastructure
statusactive
websiteimpulsespace.com
fundinglatest$308 million Series D extension, bringing the combined Series D round to $808 million
crawled events
- notable2026-09-16Impulse Space extends Series D to $808 million total
- notable2026-09-11Impulse Space brings two Mira vehicles within 200 meters using own software
- notable2026-08-25Impulse Space scales its Helios GEO rideshare program to about two missions a year
- notable2026-08-12Impulse Space wins $28M Space Force deal for two more Victus Salo missions
- noise2026-07-28Impulse Space unveils Electra electric propulsion system
- notable2026-07-17Space Force triples NSSL Lane 1 launch contract ceiling to $17 billion
- notable2026-07-08Space Force adds Relativity, Impulse Space to NSSL Lane 1
- notable2026-07-06Zenno Astronautics tests Supertorquer thruster in orbit
timeline
- 20262026-06-03Impulse Space raises $500 million Series D co-led by 137 Ventures and BANNER VCas of 2026-07-05
- 20252025-06-03Impulse Space raises $300 million Series C led by Linse Capitalas of 2026-07-05
- 2025-05-22Impulse Space and SES sign multi-launch agreement for Helios transport servicesas of 2026-07-05
- 20242024-10-03Impulse Space wins $34.5 million Space Systems Command contract for VICTUS missionsas of 2026-07-05
- 2024-10-01Impulse Space raises $150 million Series B led by Founders Fundas of 2026-07-05
- 2024-01-17Impulse Space unveils Helios high performance kick stageas of 2026-07-05
- 20232023-11-11Impulse Space flies first Mira vehicle on the LEO Express-1 missionas of 2026-07-05
- 2023-07-24Impulse Space raises $45 million Series A led by RTX Venturesas of 2026-07-05
- 20222022-03-29Impulse Space secures $20 million seed round led by Founders Fundas of 2026-07-05
- 20212021-09Impulse Space founded by Tom Muelleras of 2026-07-05
sources
[1] impulsespace.com ↗
countryfirst-party2026-07-05foundedfirst-party2026-07-05focusfirst-party2026-07-05websitefirst-party2026-07-05funding (latest)first-party2026-09-17
[2] en.wikipedia.org ↗
statuswikipedia2026-07-05
faq
What is Impulse Space?
Impulse Space focuses on In-space mobility infrastructure. as of 2026-07-05
Where is Impulse Space based?
Impulse Space is based in United States. as of 2026-07-05
When was Impulse Space founded?
Impulse Space was founded in 2021. as of 2026-07-05