SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
Busek logo Busek Designs and manufactures electric propulsion systems for spacecraft, including Hall effect, electrospray, RF ion, and green monopropellant thrusters vs CesiumAstro Designs, manufactures, and integrates software-defined phased array communications systems, payloads, and satellites for space, airborne, and ground platforms CesiumAstro logo
HEAD-TO-HEAD1 shared sector
Busek CesiumAstro
Founded 1985 2017
Headquarters Massachusetts Austin, Texas
Type private private
Status operating operating
Employees 107 318
Total funding $200K $710.2M
Latest round Grant Series C
Sectors Space Propulsion, Satellite Components & Subsystems Satellite Components & Subsystems, Satellite Communications, Satellite Manufacturing
Products listed 9 15
Federal contracts
Launches
Leaders listed Vlad Hruby, James Szabo, John Meikle Shey Sabripour, Kenneth Smith, Chris Pappas III
News mentions 0 26
SHARED SECTORS
FREQUENTLY ASKED

How do Busek and CesiumAstro compare?

Both companies work in Satellite Components & Subsystems. Busek was founded in 1985 and CesiumAstro in 2017.

Which is larger, Busek or CesiumAstro?

CesiumAstro reports the larger workforce, with 318 employees versus 107.

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