SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Planet Labs PBC logo Planet Labs PBC 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
Planet Labs PBC Sierra Space
Founded 2010 2021
Headquarters San Francisco, California Louisville, Colorado
Type public private
Status operating operating
Employees 741 1,072
Total funding $2.2B
Latest round Series C
Sectors Earth Observation & Remote Sensing, Geospatial Intelligence & Analytics, Satellite Manufacturing Satellite Manufacturing, Space Propulsion, Space Stations & Habitats
Products listed 11 7
Federal contracts 3 ($20.7M) 1 ($6.5M)
Launches
Leaders listed Will Marshall, Robbie Schingler, Ashley Fieglein Johnson Dan Jablonsky, Janet Kavandi, Troy Lahr
News mentions 1 0
SHARED SECTORS
FREQUENTLY ASKED

How do Planet Labs PBC and Sierra Space compare?

Both companies work in Satellite Manufacturing. Planet Labs PBC was founded in 2010 and Sierra Space in 2021.

Which is larger, Planet Labs PBC or Sierra Space?

Sierra Space reports the larger workforce, with 1,072 employees versus 741.

Which has more US federal contracts, Planet Labs PBC or Sierra Space?

Planet Labs PBC has been awarded more, with $20.7M across 3 awards.

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