The agency has started work on a number of briefs aimed at helping the broadcaster increase its subscriber numbers. Sky has a target to sign up ten million subscribers by 2010.
The agency is working on a project to promote Sky's new pricing system, which allows customers to buy certain packages on a month-by-month basis.
It will also develop campaigns to boost subscriptions in areas where take-up is low.
The agency will work alongside Partners Andrews Aldridge, Finex and Flourish, which were appointed after a roster review last year.