
The pitch, which is being handled by creativebrief, will be overseen by Green Flag's new head of marketing, Chris Watney.
Watney has replaced Chris Bottle, who becomes head of commercial marketing for
Direct Line For Business and National Insurance and Guarantee Corportation (NIG), also owned by RBS.
Green Flag has used Media-Com Create as its lead agency, since the closure of the previous incumbent, Shop. Shop won the account from MRM Partners in April 2007.
Green Flag's marketing spend will be focused on direct-response TV ads, print and digital activity and its sponsorship of the Williams F1 motor-racing team.
The brand's most recent integrated campaign, which launched in January, was intended to improve consumer perceptions of call-out times.
Watney, who started in his new role earlier this month, moved internally from his previous position as head of brand for Churchill and Privilege.
He recently appointed Engine to the latter's £20m integrated account.
In 1994, Green Flag became the first sponsor of the England football team, signing a £4m, four-year deal before eventually being replaced by Nationwide Building Society.