Ecofin fuels growth with fuel... and electricity, alternative power, and water. Managing some £1.5 billion ($2.1 billion) in assets on behalf of institutional investors, the investment firm targets investments in companies the global utility, infrastructure, alternative energy, and environmental sectors in Europe, North America, and Asia. Ecofin, which manages a portfolio of more than 40 companies, uses its expertise to help its portfolio companies to expand product offerings, improve operations, and/or enter new markets, after which it exits the investment at a gain. Founded in 1992, Ecofin has offices in the major financial centers of London, New York, and Hong Kong.