Mr Seligman (49) qualified as a chartered accountant with Price Waterhouse and then, after a short spell with Chloride Group, spent 12 years with SG Warburg, becoming Head of Advisory and a Managing Director.

In 1995 he joined BZW as Joint Head of Corporate Finance and, following the takeover of BZW by Credit Suisse First Boston in 1997, he was Head of UK Investment Banking at CSFB and subsequently Deputy Chairman of CSFB Europe. In 2003 he became Chairman of UK Investment Banking at CSFB, a position from which he stood down earlier this year to become a senior adviser to the bank.

Mr Seligman was a member of the Panel on Takeovers and Mergers between 1998 and 2000 and Chairman of the London Investment Banking Association Corporate Finance Committee during the same period.

Commenting on the appointment, Jorgen Philip-Sorensen, Chairman said: “Mark Seligman brings with him a wealth of top-level City experience and we warmly welcome him to the Group 4 Securicor board and to the company’s Audit Committee.” 

No information is required to be disclosed under paragraph 9.6.13R of the Listing Rules.