Fuel cell technology developer ITM Power was the first fuel cell company to float on Aim. It raised £9.13m net at 50p a share on 11 June 2004. Products include membranes (used to keep the fuel and air apart), electrolysers to turn electricity and water into hydrogen to power fuel cells and proton exchange membrane fuel cells. ITM raised £29m at 320p a share in May 2006.
Sector: Cleantech
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