High-profile campaigns that included the relaunch of Carphone Warehouse's TalkTalk home-phone service and the launch of Royal Bank of Scotland's Mint card, helped CHI achieve 120% growth this year. Client wins, which included the £40m Direct Line account, added more than £100m in business.
MediaCom's highlight of the year was the £71m BSkyB win in August, which accounted for a significant share of its £194m of new business across 23 clients.
Partners Andrews Aldridge added £21m to its billings, most notably through the addition of the £10m RAC direct account.
Marketing's first sponsorship agency award went to M&C Saatchi Sponsorship for its football-related activity with Orange and Coca-Cola.
Agency Republic was named Digital Agency of the Year for its work for O2 and eight client wins.
Williams Murray Hamm won Design Agency of the Year, despite its Jaffa Cakes packaging redesign being ditched earlier this year.