Nielsen Audio, Inc. offers media and marketing information services in the United States and internationally. It estimates the size and composition of radio audiences in local markets and of audiences to network radio programming and commercials in the United States. The company's services also include estimating the size and composition of audiences to media other than radio, including mobile media, television viewed out-of-home, and content distributed on multiple platforms; and analyzing the behavior of smartphone and tablet users. In addition, its services comprise providing information about consumers, including their lifestyles, shopping patterns, and use of media, such as the Scarborough Report, the Scarborough Mid-Tier Local Market Consumer Study, the RetailDirect Service, the Qualitative Diary Service/LocalMotion Service, and non-syndicated research services; and offering software to access and analyze media audience and marketing information data. The company's software applications include Maximi$er, TAPSCAN, PD Advantage, Media Professional, SmartPlus, and PPM Analysis Tool. It serves radio audiences, advertisers, advertising agencies, cable and broadcast television, retailers, out-of-home media, online media, mobile media, telecommunications providers, and print media. The company was formerly known as Arbitron Inc. The company was founded in 1912 and is headquartered in Columbia, Maryland. Nielsen Audio, Inc. operates as a subsidiary of The Nielsen Company (Luxembourg) S.à r.l.