Computer Modelling Group (CMG)

Founded in 1978, Computer Modelling Group Ltd. (CMG) is a Canadian software and consulting company developing physics-based reservoir simulation, subsurface modelling and geoscience software for oil and gas operators, engineering firms and energy companies. Its solutions also support carbon capture and storage (CCS), geothermal energy and hydrogen applications. CMG's portfolio includes GEM, STARS, IMEX and CMOST, alongside seismic interpretation and risk assessment technologies. The publicly traded company expanded its capabilities through acquisitions, including Bluware, Sharp Reflections, SeisWare and Rose & Associates in March 2026.