SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Atomos Space logo Atomos Space Develops orbital transfer vehicles for in-space transportation, satellite life extension, and payload delivery services vs Portal Space Systems Manufactures solar-thermal-propelled spacecraft buses for high-delta-v, multi-orbit maneuverability and tactically responsive space operations Portal Space Systems logo
HEAD-TO-HEAD1 shared sector
Atomos Space Portal Space Systems
Founded 2018 2021
Headquarters Broomfield, Colorado Bothell, Washington
Type private private
Status operating operating
Employees 3 22
Total funding $27.1M $20M
Latest round Corporate Seed
Sectors Space Transportation & Logistics, In-Orbit Servicing & Assembly Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 1 3
Federal contracts
Launches
Leaders listed Vanessa Clark Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Atomos Space and Portal Space Systems compare?

Both companies work in Space Transportation & Logistics. Atomos Space was founded in 2018 and Portal Space Systems in 2021.

Which is larger, Atomos Space or Portal Space Systems?

Portal Space Systems reports the larger workforce, with 22 employees versus 3.

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