Mitsubishi Electric, MUFG Bank and London’s Climate Investment have invested in GHGSat, the Montreal company said Nov. 5. The funds are tied to a methane-tracking service built around a Japanese government satellite.
The three bought convertible notes in October. These are loans that turn into shares later, usually when a company next raises money. GHGSat did not say how much they put in. It last raised money in September 2025, when it announced $47 million in loans and convertible notes.
Mitsubishi Electric, MUFG Bank and GHGSat have worked on the service since late 2024, along with Tokyo’s Satellite Data Services. It relies on GOSAT-GW, a Japanese government satellite that tracks greenhouse gases and the water cycle. Mitsubishi Electric built it, and it launched in June 2025. GOSAT-GW scans large areas for signs of greenhouse gas. When it spots a likely leak, the location goes to GHGSat’s satellites, which take a much closer look and can trace methane to a single plant.
Japan’s energy and metals security agency, JOGMEC, hired Mitsubishi Electric in June to test the system on real sites through March 2027, with GHGSat supplying the satellite data and analysis. Mitsubishi Electric is also studying joint tests at natural gas and liquefied natural gas (LNG) production sites. Methane is the main ingredient of natural gas and traps far more heat than carbon dioxide.
Mitsubishi Electric invested through its venture capital fund, MUFG Bank, and the money counts as green financing under rules GHGSat drew up with the bank’s help. Climate Investment, set up by a group of large oil and gas companies, has backed GHGSat since 2018.
Mitsubishi Electric plans to show the service at Japan’s pavilion at the COP31 climate talks in Antalya, Turkey, which open Nov. 9. It aims eventually to sell the service to companies and local governments that want to see where their emissions are coming from.