In Forrester's 37-criteria evaluation of US digital agencies with mobile marketing services, we identified the nine significant agencies in this category — AKQA, iCrossing, Ogilvy, Possible Worldwide, Razorfish, Rosetta, SapientNitro, TribalDDB, and VML — and researched, analyzed, and scored them. This report details our findings about how each agency measures up and plots where they stand in relation to each other, to help interactive marketers select the right partner for their mobile marketing efforts.