GREEN RANKING FOR 2009
Ranking: 44=
Worth: £750m
Green investment: Green venture capitalist

A leading venture capitalist in California, John Doerr has worked for nearly 30 years in Silicon Valley. He joined Kleiner Perkins Caufield & Byers in 1980 and has funded many top tech companies such as Sun Microsystems, Amazon and Netscape. An early $12.5m investment in Google made Doerr very rich. He is looking at alternative energy investments and his firm has invested $200m in a dozen renewable energy operations. Doerr has been quoted as saying that “the field of green tech could be the economic opportunity of the 21st century”. Doerr’s fortune was assessed at £1.1 billion by Forbes in its October 2008 list of the 400 richest Americans. We cut that to £750m in the current climate.