Donald Bren (USA)

GREEN RANKING FOR 2009
Ranking: 9
Worth: £8.2bn
Green investment: Environmental research

In 1997 low-key Californian developer Donald Bren pledged $15m to what became the Donald Bren School of Environmental Science and Management, topping that up with a further $5m in 2004. The Bren School educates research scientists and environmental management professionals. It also plays a leading role in identifying and solving the environmental problems of the 21st century. Bren’s fortune is put at £8.7 billion in the 2008 Forbes list of richest Americans. View the full Green list.