SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Motiv Space Systems logo Motiv Space Systems Designs and manufactures robotic arms, motor controllers, and mechanisms for space missions including Mars rovers, on-orbit servicing, and lunar exploration vs Phase Four Developed electrodeless radio-frequency and multi-mode electric propulsion systems for satellites Phase Four logo
HEAD-TO-HEAD1 shared sector
Motiv Space Systems Phase Four
Founded 2014 2015
Headquarters California Hawthorne, California
Type private private
Status operating closed
Employees 31 5
Total funding $35.8M
Latest round Series C
Sectors Satellite Components & Subsystems, In-Orbit Servicing & Assembly, Lunar Services Space Propulsion, Satellite Components & Subsystems
Products listed 14 4
Federal contracts
Launches
Leaders listed Chris Thayer, Brett Lindenfeld, Tom McCarthy Steve Kiser, M. Umair Siddiqui, Simon Halpern
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Motiv Space Systems and Phase Four compare?

Both companies work in Satellite Components & Subsystems. Motiv Space Systems was founded in 2014 and Phase Four in 2015.

Which is larger, Motiv Space Systems or Phase Four?

Motiv Space Systems reports the larger workforce, with 31 employees versus 5.

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