SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
Innospace logo Innospace Hybrid rocket-powered small satellite launch vehicles delivering low-cost, customized rapid access to sun-synchronous and low Earth orbit vs Phase Four Developed electrodeless radio-frequency and multi-mode electric propulsion systems for satellites Phase Four logo
HEAD-TO-HEAD1 shared sector
Innospace Phase Four
Founded 2017 2015
Headquarters 세종특별자치시 가름로 232 세종비지니스센터 A동 412호 (30121) Hawthorne, California, USA
Type public private
Status operating closed
Employees 55 5
Total funding 38800000 $35.8M
Latest round Post-IPO Equity Series C
Sectors Launch Services, Space Propulsion Space Propulsion, Satellite Components & Subsystems
Products listed 5 4
Federal contracts
Launches 4 (25%)
Leaders listed Soo-Jong Kim, Hun Jung, Chan Jung Kim Steve Kiser, M. Umair Siddiqui, Simon Halpern
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Innospace and Phase Four compare?

Both companies work in Space Propulsion. Innospace was founded in 2017 and Phase Four in 2015.

Which is larger, Innospace or Phase Four?

Innospace reports the larger workforce, with 55 employees versus 5.

Which has more launches, Innospace or Phase Four?

Innospace leads with 4 tracked launches (25% success rate).

Numbers refresh on every render against the live Space Index database. Federal contract data from USAspending.gov; launches from LaunchLibrary2.