Triton Digital will provide its audience measurement service to the streaming audio content of national broadcaster IHeartMedia Inc., the companies announced Thursday.

The Sherman Oaks technology services company serving the radio industry uses its Webcast Metrics Local system to track audience by measuring actual listeners and providing data to agencies and advertisers to evaluate audiences within specific markets.

iHeartMedia, in San Antonio, previously known as Clear Channel Communications Inc., operates 850 radio stations, making it the largest radio broadcaster in the U.S. Its Los Angeles area stations are based in Burbank.

“The addition of this pre-eminent media company’s streaming audiences to Webcast Metrics Local reports will give media planners and buyers better insight into the rapidly growing online audio audience,” said Rob Favre, general manager of measurement and analytics at Triton Digital.