The agency's work is intended to attract attendees to The Ordnance Survey Outdoors Show and specifically, the Ordnance Survey stand.
It will feature imagery of a wooden signpost, a dedicated microsite, direct mail and point-of-sale activity at the show itself.
To enter the competition, visitors will be required to fill in forms with personal data, which will then be used for subsequent Ordnance Survey marketing campaigns.
The prize draw gives visitors the chance to win from a pool of more than 3,000 instant-win prizes, including canoeing holidays and pedometers. Visitors can also be entered into a further prize draw, giving them the chance to win a Ford Focus FlexiFule car.
Ordnance Survey appointed Billington Cartmell in July 2006 to focus on its customer communications and encourage trade and consumers to purchase more of its products.
The Ordnance Survey Outdoors Show is running at the Birmingham NEC from 16 to 18 March.