SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.03
Spacebilt logo Spacebilt Develops reusable spacecraft through on-orbit assembly and reprovisioning, extending operations and cutting lifecycle costs by 80% vs TransAstra Develops orbital logistics vehicles, asteroid capture systems, and space domain awareness telescopes for cislunar resource utilization TransAstra logo
HEAD-TO-HEAD1 shared sector
Spacebilt TransAstra
Founded 1998 2017
Headquarters London Los Angeles, CA
Type private private
Status operating operating
Employees 7 29
Total funding $12M
Latest round Seed
Sectors In-Orbit Servicing & Assembly, In-Space Manufacturing, Space Transportation & Logistics Space Resources & Mining, Space Domain Awareness, Space Transportation & Logistics
Products listed 3 7
Federal contracts
Launches
Leaders listed Dave Swan, Dennis Wingo, Steve Kwast Joel Sercel, PhD., Nicole Shumaker, Alex Pilmer
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do Spacebilt and TransAstra compare?

Both companies work in Space Transportation & Logistics. Spacebilt was founded in 1998 and TransAstra in 2017.

Which is larger, Spacebilt or TransAstra?

TransAstra reports the larger workforce, with 29 employees versus 7.

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