The agency, which won the account after a pitch, will initially support the relaunch of the brand in the UK.
A campaign breaking in November will include press, digital, retail and brand partnership activity. A number of Gatorade-sponsored athletes are expected to be involved in the work, including the triathletes Alistair and Jonathan Brownlee and the GB Cycling Team.
Gatorade called a pitch for its integrated ad business in June, just months after redesigning its logo and packaging in an effort to appeal to athletes and active consumers.
Last month, it was revealed that Gatorade was considering bringing its US "replay" campaign to the UK. Created by TBWA\Chiat\Day, it gave people the chance to replay a hotly contested sports match from their youth. It won the Grand Prix at Cannes in the PR and Promo categories.