World Top 100 Electricity Generation Companies List by Market Cap as of August 2026

Trustpower has businesses in electricity generation and supply, gas supply, internet provider and landline voice services. Headquarters is in New Zealand.

B. Grimm Power Public Company is a Thailand Based Energy company that focuses on the development, financing, construction and operation of green field power plants. The headquarters is in Thailand. 

Minera Valparaiso is an investment company that develops its main activities and businesses in the Industrial, Forestry and Real Estate fields, highlighting the areas of Generation and Sale of Electric Power, Forestry Development and Real Estate Management. The company annual revenue is 1,440 million USD and annual net income is 436 million USD for year ending Dec-2021. The headquarters is in Chile.

CGN New Energy Holdings is a diversified independent power producer and renewable power generation company focused on fuel type and geography with a portfolio of wind, solar, gas-fired, coal-fired, oil-fired, hydro, cogen and fuel cell power generation projects. The company acquisition includes 13 wind power projects companies and 6 solar power projects companies with an aggregate operational installed capacity of approximately 1,400 MW. The headquarters is in Hong Kong.

Banpu Power Public Company produces and distributes electricity from thermal power generation and renewable power generation company. The company annual revenue is 6,784 million THB and annual net income is 3,127 million THB for year ending December 2021. The headquarters is in Thailand.