LOS ANGELES: Nielsen has announced that it will pull out of the US radio ratings sector, discontinuing all of its radio measurement services.

Clients will still have access to historical data, and Nielsen's radio measurement operations in 11 other non-US territories are not affected by the announcement.

Two years ago, Nielsen launched its radio measurement product with Clear Channel as one of its major clients.

The decision to discontinue the services follows the renewal of a comprehensive deal between Clear Channel and Arbitron – a dedicated radio measurement company and rival to Nielsen.

Under the terms of the agreement, the two companies will work together until at least 2016.

"Going forward, Arbitron and Clear Channel will be working closely with other radio groups in an industry-wide advocacy program to further promote the value of radio as the ultimate audio-powered and community-driven medium," said William Kerr, president and ceo of Arbitron.

A Clear Channel spokesperson said: "Clear Channel Radio recently announced a long-term renewal of its research arrangements with Arbitron that addresses our comprehensive research needs."

Data sourced from Advertising Age; additional content by Warc staff