No.24 - FREDERIC JOUSSET (WEBHELP)

Age: 48

Years at current company: 18

Industry: Call Centers

Turnover: $1.1bn

Rate of growth: 593% since 2011

A great mountaineering enthusiast, Frederic Jousset has never been afraid to aim for the top. His startup, co-founded in 2000 with Olivier Duha, has revenue of over 1.1 billion dollars and employs 40,000 people in 33 countries. To become the European leader in customer-relationship management, the businessman has made a total of seventeen acquisitions. He has been able to count on the financial support of the US fund, which came in in 2015 and now controls 55% of the capital. This hyperactive early riser still finds time to devote to extra-curricular activities: he became head of the Pass Culture working group and has taken on the presidency of HEC Alumni.

Notable success: The acquisition of German competitor Sellbytel in 2017. The operation should enable Webhelp to make 1.5 billion dollars this year.