Stanley Fink, chief executive, International Standard Asset Management (ISAM)

When Stanley Fink decided to come out of retirement after only a couple of months, few were surprised. The man who was one of the dominating characters of the hedge fund industry commands respect.

Most people who have achieved as much in business as Stanley Fink would be content to rest on their laurels. Not Fink. After only two months in retirement after stepping down as head of the Man Group, he decided to join International Standard Asset Management (ISAM) as chief executive.

Two things drew him back into the industry: the challenge of growing another company and a passionate desire to be able to give more money to his various philanthropic causes.

Fink helped form ISAM with Lord Levy