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

APA Group has 15,000 kilometres of natural gas pipelines connect sources of supply and markets across Australia. They operate and maintain networks connecting 1.4 million Australian homes and businesses to provide natural gas. Headquarters is in Sydney, Australia.

Gas and Electricity Utility company with headquarters is in Oklahoma, USA.

Centrica is international energy services and solutions provider focused on satisfying the changing needs of their customers and enabling the transition to a lower carbon future. They supply energy and services to over 26.2 million customer accounts mainly in the UK, Ireland and North America through strong brands such as British Gas, supported by around 9,000 engineers and technicians. The headquarters is in UK.

Red Electrica Corporation is a Involved in Electricity System Operation and Transport company. It started with a high voltage electricity line 10,500 km long know it is 44,000 km. The company employees are around 1800. The headquarters is in Spain.

Red Electrica Corporacion changed its name to Redeia Corporation in Sep-2023.

DCP Midstream LP is a natural gas producing and marketing company. Portfolio consists of logistics, marketing, gathering, and processing assets across nine states. The headquarters is in USA.

Phillips 66 has acquired DCP Midstream in Jun-2023.

Eneva has business in Power Generation, Power Distribution and Coal mining. The headquarters is in Brazil.

KT Corporation is a Telecommunications company. The headquarters is in South Korea.

INFRATIL invests and owns renewable energy, airport, data & connectivity and social infrastructure businesses in growth sectors. Headquarters is in New Zealand.

As on 2022, INFRATIL has 6,140 employees.

INFRATIL annual revenue generated for period ending Mar-2023 was 1,191 Million AUD.

INFRATIL annual Net Income generated for period ending Mar-2023 was 643 Million AUD.