World Top 100 Electric Utilities Companies List by Market Cap as of August 2026

PNM Resources is an energy holding company. It is electric utility company with 2,811 megawatts of generation capacity and provides electricity to approximately 790,000 homes and businesses in New Mexico and Texas. The company consolidated operating revenues of $1.5 billion as per 2019. The headquarters is in USA.

MERCURY NZ is a Electricity generation, retail and distribution Power company with headquarters is in New Zealand.

It's subsidiaries had businesses in trading, sale of electricity and engage in the production activities in New Zealand and it also provides piped natural gas and other products and services.

As of 2022, MERCURY NZ has 1,335 employees.

MERCURY NZ annual revenue generated for period ending Jun-2022 was 2,122 Million NZD.

EVN AG provides home market with electricity, natural gas, heat, drinking water and wastewater treatment, waste incineration and related services from a single supplier. The company annual revenue is 2,352.8 USD. The headquarters is in Austria.

Black Hills Corporation is a Electricity Power, Oil and Gas company. The company serves over 1.28 million electric and natural gas utility customers in more than 800 communities in Arkansas, Colorado, Iowa, Kansas, Montana, Nebraska, South Dakota and Wyoming. The headquarters is in USA.

Clearway Energy is a Clean Energy in the United States. and its asset portfolio includes over 7,000 megawatts of wind, solar and natural gas fired power generation facilities, as well as district energy systems.