AGL Energy

Originally formed as the Australian Gas Light Company in 1837, the modern AGL Energy came as a result of a 2006 merger and demerger with competitors Alinta. Involved in an increasing array of renewable energy projects including Compressed Natural Gas and Hydroelectric power, AGL employs around 2,750 and had revenues in excess of AUS $1 Billion in 2013.  


Founded in 1997, Centrica is a multinational provider of gas and electricity, as well as being the largest provider of gas and electricity to domestic residences in the UK. Based in Windsor, Berkshire, Centrica brought in revenues of around £26.5 billion in 2013.  


Formed during the 2000 merger of VEBA and VIAG, E.on is one of the world’s largest providers of electrical utilities, having acquired the UK’s powergen in 2002 and Germany’s Ruhrgas in 2003. Headquartered in Dusseldorf, E.on has an employee base of around 80,000 and is also operator sic German nuclear power plants.  

GDF Suez

Created from the 2008 merger of Gaz de France and Suez (who can trace its roots back to 1858), GDF Suez is located in Paris’ La Defense. With the French state owning around 35% of the company, the company is one of the world’s largest utility providers and employs nearly 240,000 people globally.  

National Grid

Formed in 1990 after the breakup of the UK’s Central Electricity Generating Board, National Grid is major electricity and gas utility company primarily operating in the UK and Northeast America. Headquartered in London, National Grid has an employee base of around 25,000 and achieved revenues of over £14 million in 2013.

PG&E Corp

PG&E Corporation provides natural gas and electricity through its main subsidiary, the Pacific Gas and Electric Company, and is one of the largest combination utilities in the United States.


Public Services Enterprise Group is a diversified energy company headquartered in Newark, New Jersey. PSEG has total assets of around $32.5 billion and achieved revenues of nearly $10 billion in 2013.  

Red Electrica

Red Electrica de Espana is the partly-state owned operator of the electrical grid in Spain, with other operations in Bolivia, Peru and Portugal. Founded in 1985, Red Electrica has an employee base of around 1,600 people and achieved a net revenue of €529 million in 2013.