The agencies won the business after a pitch against Rapp and DigForFireDMG, and will work on strategy and positioning across Hastings' portfolio of brands, which includes Hastings Direct, Hastings Essential, Insure Pink and Insure Blue.
Hastings called a pitch for its media and DM accounts in October last year. Feather Brooksbank was the incumbent on the media business, while integrated agency Story handled DM. The pitch was handled by the AAR.
EHS Brann Cirencester's first campaign for Hastings is due to break over the next few months, and will highlight the company's personal approach to customers, and the commitment shown by its staff.
The campaign will feature Hastings' brand icon Harry Hastings, who was redesigned early last year as a part of a re-launch of the company.
Mat Shepherd, the Hastings Direct trading director, said: "EHS Brann Cirencester has shown real understanding of our brands and customers."