SRDS has been bringing the media community together for nearly 90 years. As the leading provider of media rates and data, we connect buyers and sellers through our sources that offer comprehensive coverage of traditional media - such as magazines, newspapers, television, direct marketing and radio - as well as today's alternative marketing opportunities - such as online and out-of-home. Through SRDS Media Solutions®, we continue to provide high-quality data, advanced functionality and value-added services that meet customers' planning and buying needs.

SRDS works hard to uphold our commitment to customers like you. With a staff of more than 100 data and technology experts, we ensure unsurpassed data collection and maintenance capabilities. Our database of media rates is the largest and most comprehensive in the world - cataloging more than 100,000 media properties in all. This massive network maintains its currency with verification for each listing up to 20 times a year and more than 21,000 listing updates every month.

We offer all this data the industry needs in formats that are easy to use. SRDS planning tools and support services make it even easier to advance marketing efforts. These reasons add up to a staggering 95 percent of all advertising agencies relying on SRDS to achieve their objectives.

In early 2002, PERQ/HCI merged with SRDS. PERQ/HCI is the leading provider of media research services and software analysis tools to the pharmaceutical industry and specialist healthcare advertising agencies. The combined company is part of The Nielsen Company, which delivers marketing and media information services to millions of professionals around the globe every day.

Nielsen's SRDS and Crain's BtoB Magazine Announce New Online Direct Marketing List Service. June 2, 2008. See press release.

SRDS Provides Comprehensive Data for AAF's 2006 National Student Advertising Competition. February 14, 2006. See press release.