SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Magdrive logo Magdrive Develops high-thrust electric plasma propulsion systems for satellites and spacecraft using pulsed power and solid metal propellant vs Phase Four Developed electrodeless radio-frequency and multi-mode electric propulsion systems for satellites Phase Four logo
HEAD-TO-HEAD2 shared sectors
Magdrive Phase Four
Founded 2020 2015
Headquarters United Kingdom Hawthorne, California
Type private private
Status operating closed
Employees 37 5
Total funding $10.5M $35.8M
Latest round Seed Series C
Sectors Space Propulsion, Satellite Components & Subsystems Space Propulsion, Satellite Components & Subsystems
Products listed 3 4
Federal contracts
Launches
Leaders listed Mark Stokes, Dr Thomas Clayson, Harald Nieder Steve Kiser, M. Umair Siddiqui, Simon Halpern
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Magdrive and Phase Four compare?

Both companies work in Space Propulsion, Satellite Components & Subsystems. Magdrive was founded in 2020 and Phase Four in 2015.

Which is larger, Magdrive or Phase Four?

Magdrive reports the larger workforce, with 37 employees versus 5.

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