In our 29-criterion evaluation of digital product development services providers, we identified the 12 most significant ones — Boston Consulting Group (BCG), Bresslergroup, Cognizant, EPAM, frog, HARMAN, Huge, Slalom, ThoughtWorks, Virtusa, WillowTree, and Wipro — and researched, analyzed, and scored them. This report shows how each provider measures up and helps eBusiness and channel strategy professionals select the right one for their needs.