Stability is returning to the US business services market after years of declines. At the service level significant declines in voice services have been offset by growth in data services, as businesses of all sizes – small, medium, and enterprise – continue to push transactions to the wide area network. The growth in wireline data services is due to higher number of connections and higher bandwidth per connection, while business wireless revenues growth is due to the penetration of smartphones and tablets into business communications. Business voice calling has shifted to wireless and to lower-cost VoIP services, while data services have become the transport layer for internet access, cloud computing, wireless backhaul, and video distribution. The study provides detailed analysis of US businesses wireless and wireline market. Business services are further segmented by service, business size, and wholesale vs. retail. This study includes revenue forecasts of all business services over the next five years, along with projections of migration patterns from legacy services to the advanced IP services that will become the backbone for future B2B and B2C applications.