SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Orbit Fab logo Orbit Fab Develops on-orbit refueling infrastructure and operates fuel depots, shuttles, and standardized docking interfaces for satellite propellant delivery in 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
Orbit Fab Phase Four
Founded 2018 2015
Headquarters Lafayette, Colorado Hawthorne, California
Type private private
Status operating closed
Employees 87 5
Total funding $56.1M $35.8M
Latest round Venture Series C
Sectors In-Orbit Servicing & Assembly, Satellite Components & Subsystems, Space Transportation & Logistics Space Propulsion, Satellite Components & Subsystems
Products listed 7 4
Federal contracts
Launches
Leaders listed Daniel Faber, Jeff Lints, Shawn Hendricks Steve Kiser, M. Umair Siddiqui, Simon Halpern
News mentions 23 0
SHARED SECTORS
FREQUENTLY ASKED

How do Orbit Fab and Phase Four compare?

Both companies work in Satellite Components & Subsystems. Orbit Fab was founded in 2018 and Phase Four in 2015.

Which is larger, Orbit Fab or Phase Four?

Orbit Fab reports the larger workforce, with 87 employees versus 5.

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