Concentration Risk

3 Months Ended

Mar. 31, 2013

Concentration Risk

11. Concentration Risk

Arbitron is a leading media and marketing information services firm primarily serving radio, advertisers, advertising agencies, cable and broadcast television, retailers, out-of-home media, online media, mobile media, telecommunications providers, and print media. The Company’s quantitative radio audience ratings service and related software licensing revenue accounted for the following percentages, in the aggregate, of total Company revenue:

	Three-Month Period Ended March 31, 2013			Three-Month Period Ended March 31, 2012
Quantitative radio audience ratings service and related software licensing revenue		95	%		96	%

The Company had one customer that individually represented approximately 19% of its quarterly revenue for the three-month period ended March 31, 2013. The Company had three customers that individually represented approximately 19%, 11%, and 11% of its total accounts receivable balance as of March 31, 2013, and one customer that individually represented approximately 26% of its total accounts receivable balance as of December 31, 2012. The Company has historically experienced a high level of contract renewals.