SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
BlackSky Technology logo BlackSky Technology Operates a high-revisit Earth observation constellation and AI-powered Spectra platform for real-time geospatial intelligence and automated 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
BlackSky Technology Sierra Space
Founded 2014 2021
Headquarters Herndon, Virginia Louisville, Colorado
Type public private
Status operating operating
Employees 229 1,072
Total funding $2.2B
Latest round Series C
Sectors Geospatial Intelligence & Analytics, Earth Observation & Remote Sensing, Satellite Manufacturing Satellite Manufacturing, Space Propulsion, Space Stations & Habitats
Products listed 5 7
Federal contracts 1 ($6.5M)
Launches
Leaders listed Brian O'Toole, Henry Dubois, Chris Lin Dan Jablonsky, Janet Kavandi, Troy Lahr
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do BlackSky Technology and Sierra Space compare?

Both companies work in Satellite Manufacturing. BlackSky Technology was founded in 2014 and Sierra Space in 2021.

Which is larger, BlackSky Technology or Sierra Space?

Sierra Space reports the larger workforce, with 1,072 employees versus 229.

Which has more US federal contracts, BlackSky Technology 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.