Aggreko plc (LSE: AGK) is the world's largest temporary power company. It is headquartered in Glasgow, United Kingdom. At the end of 2009, it had a fleet of 13,000 generators ranging in size from 10kW to 2MW, which in aggregate amounted to over 5,900MW of generating capacity, the equivalent of about 10% of peak power demand on the UK national grid. It has 144 service centres in 34 countries and customers in over 100 countries.

It is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index.

Aggreko was founded in the Netherlands in 1962. It moved to Scotland in 1973 and was acquired by Christian Salvesen plc in 1984. It was demerged from Christian Salvesen and first listed on the London Stock Exchange in 1997.

In 2006 the company acquired substantially all the activities (other than those relating to large gas turbines) of General Electric Energy Rentals for total consideration of circa US$212m.

In 2008 the company became the exclusive supplier for temporary power and temperature controls for the Beijing 2008 Olympic Games.

Source: Wikipedia