16	£1,164m	Recruitment services

Foriel-Destezet, 67, built Adecco into the world's biggest agency for temporary staff before stepping down as chairman last year. The London-based Frenchman still has a stake in the quoted company, but its value has fallen to £914m. Past share sales of £135m and a £65m stake in Securitas, the Swedish security group, keep him firmly in the billionaire's league. 7 £1,620m