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 Sierra Space Designs and manufactures satellite platforms, reusable spaceplanes, expandable habitats, and propulsion systems for national security and civil space Sierra Space logo
HEAD-TO-HEAD1 shared sector
Orbital Sidekick Sierra Space
Founded 2016 2021
Headquarters San Francisco, California Louisville, Colorado
Type private private
Status operating operating
Employees 24 1,072
Total funding $55.4M $2.2B
Latest round Venture Series C
Sectors Earth Observation & Remote Sensing, Geospatial Intelligence & Analytics, Satellite Manufacturing Satellite Manufacturing, Space Propulsion, Space Stations & Habitats
Products listed 4 7
Federal contracts 1 ($6.5M)
Launches
Leaders listed Dan Katz, Tushar Prabhakar, Spencer Hill Dan Jablonsky, Janet Kavandi, Troy Lahr
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Orbital Sidekick and Sierra Space compare?

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

Which is larger, Orbital Sidekick or Sierra Space?

Sierra Space reports the larger workforce, with 1,072 employees versus 24.

Which has more US federal contracts, Orbital Sidekick or Sierra Space?

Sierra Space has been awarded more, with $6.5M across 1 awards.

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