The Camelot chief executive, who last year became the first woman to top the ranking of the industry's most influential people, retained her position after an impressive year for the lottery operator. The former ICI and Ratners marketer has presided over a rise in sales, and Camelot is now odds-on favourite to retain the lottery licence.
The Power 100 top 10 also includes Marks & Spencer's Stuart Rose and Sainsbury's Justin King, both of whom have led their respective retailers to recovery.
BT's Gavin Patterson breaks into the top 10 at number nine after the group's broadband business exceeded expectations.
Former number one Tim Mason drops out of the list altogether because his latest role at Tesco is focused on the US. This year's ranking does, however, see the return of big names including Martin Glenn and Chris Pilling. Glenn re-emerged as the head of Iglo Birds Eye, while former Asda marketer Pilling re-enters the list courtesy of his role at First Direct.
The list saw 39 new entries this year, up from 36 last year.
- Power 100, page 28.