GnCenergy

GnCenergy supplies power-generation equipment, including emergency and commercial generators, biogas power systems, and fuel-cell plants, to customers such as data centers, power stations, large shopping complexes, and residential buildings across South Korea.

It also provides geothermal heating and cooling systems and air-conditioning infrastructure through subsidiaries. Listed on KOSDAQ, Korea's tech and small-cap board, the company handles the full project lifecycle for its biogas plants, from investment and design through construction, installation, and ongoing operation, making its core generator business the primary revenue driver.