Sonus Hearing Care Professionals is part of the largest hearing services company in North America. Since 2002, Sonus has been a member to Amplifon Group, the global leader in hearing care distributors and service providers headquartered in Milan, Italy. In June 2012, Sonus hired SIM Partners, a marketing automation provider located in Chicago, IL. SIM Partners' technology (known as Velocity) allows national brands to maximize social, local search, and mobile at the location level. The program covers a multitude of local marketing strategies including national and franchise-level.