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

Norsk Hydro ASA is a Integrated Aluminum company. As on 2019, it has 36,000 employees in 40 countries, working together to create ever better aluminum solutions for over 30,000 customers worldwide. The headquarters is in Norway.

Saudi Electricity Company (SECO) is Electric utility company with headquarters is in Riyadh, Saudi Arabia. Company generates electricity and distributes electricity. It is the leading producer of electricity and sole owner of the entire transmission and distribution network throughout the Kingdom, serving all types of customers.

SECO managing 37,000 megawatts of power across some 45 plants.

Nuclear power generation company with headquarters is in Shenzhen, China.

National Atomic Company Kazatomprom is the national operator of the Republic of Kazakhstan for the import and export of uranium, rare metals, nuclear fuel for nuclear power plants company. It involved in the front end of the nuclear fuel cycle from geological exploration, uranium mining and production of nuclear fuel cycle through to scientific research and development of patented technologies. The headquarters is in Kazakhstan.

EDP Renovaveis is Renewable Energy company and electricity utility company with headquarters is in Madrid, Spain.

As on December 2019, EDP Renovaveis has 1,566 employees.

Electricity and Power generation company. Headquarters is in Beijing, China.

Emera companies are working to create cleaner energy and deliver it to market. Headquarters is in Nova Scotia, Canada.