SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
K2 Space logo K2 Space Designs and manufactures large-scale, high-power satellite platforms with in-house electric propulsion and avionics for multi-orbit missions 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-HEAD2 shared sectors
K2 Space Sierra Space
Founded 2022 2021
Headquarters Torrance, California Louisville, Colorado
Type private private
Status operating operating
Employees 159 1,072
Total funding $429M $2.2B
Latest round Series C Series C
Sectors Satellite Manufacturing, Satellite Components & Subsystems, Space Propulsion Satellite Manufacturing, Space Propulsion, Space Stations & Habitats
Products listed 3 7
Federal contracts 1 ($6.5M)
Launches
Leaders listed Karan Kunjur, Neel Kunjur, John Plumb Dan Jablonsky, Janet Kavandi, Troy Lahr
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do K2 Space and Sierra Space compare?

Both companies work in Satellite Manufacturing, Space Propulsion. K2 Space was founded in 2022 and Sierra Space in 2021.

Which is larger, K2 Space or Sierra Space?

Sierra Space reports the larger workforce, with 1,072 employees versus 159.

Which has more US federal contracts, K2 Space 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.