SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Orbital Sidekick logo Orbital Sidekick Operates a constellation of hyperspectral imaging satellites and delivers spectral intelligence for energy, mining, agriculture, and defense monitoring 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
Orbital Sidekick Portal Space Systems
Founded 2016 2021
Headquarters San Francisco, California Bothell, Washington
Type private private
Status operating operating
Employees 24 22
Total funding $55.4M $20M
Latest round Venture Seed
Sectors Earth Observation & Remote Sensing, Geospatial Intelligence & Analytics, Satellite Manufacturing Space Transportation & Logistics, Satellite Manufacturing, Space Propulsion
Products listed 4 3
Federal contracts
Launches
Leaders listed Dan Katz, Tushar Prabhakar, Spencer Hill Jeff Thornburg, Ian Vorbach, Prashaanth Ravindran
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Orbital Sidekick and Portal Space Systems compare?

Both companies work in Satellite Manufacturing. Orbital Sidekick was founded in 2016 and Portal Space Systems in 2021.

Which is larger, Orbital Sidekick or Portal Space Systems?

Orbital Sidekick reports the larger workforce, with 24 employees versus 22.

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