SPACE INDEX COMPANIES INSIGHTS SECTORS PRODUCTS NEWS BLOG ANSWERS RESEARCH ABOUT FOR COMPANIES BUILD / 2026.06.04
GHGSat logo GHGSat Operates a constellation of high-resolution satellites that detect and measure methane and CO2 emissions from individual industrial facilities vs HEO Provides on-demand non-Earth imagery and intelligence on satellites and space objects using a distributed network of space-based sensors and proprietary inspection software HEO logo
HEAD-TO-HEAD1 shared sector
GHGSat HEO
Founded 2011 2016
Headquarters Montreal, Canada Sydney, Australia
Type private private
Status operating operating
Employees 150 42
Total funding $145M $7.8M
Latest round Debt Series A
Sectors Earth Observation & Remote Sensing, Geospatial Intelligence & Analytics Space Domain Awareness, Earth Observation & Remote Sensing, In-Orbit Servicing & Assembly
Products listed 7 5
Federal contracts
Launches
Leaders listed Stephane Germain, Emilie Hamel, Jeffrey Kadanoff Dr. Will Crowe, Dr. Hiranya Jayakody, Nate Notargiacomo
News mentions 0 0
SHARED SECTORS
FREQUENTLY ASKED

How do GHGSat and HEO compare?

Both companies work in Earth Observation & Remote Sensing. GHGSat was founded in 2011 and HEO in 2016.

Which is larger, GHGSat or HEO?

GHGSat reports the larger workforce, with 150 employees versus 42.

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