November 2017 - Top Podcast Publishers

Today’s publication of the November 2017 Top 10 Publisher Ranking marks Podtrac’s 20th month of providing this free industry resource.  Later this month, you’ll receive our 16th Top 20 Podcast Ranking.

As usual you’ll find both rankings at, and the Publisher Ranking is included below with highlights for the month.  Additionally, we’ve included a few FAQ’s about how the rankings are produced which you can also find at  

Podtrac Ranking FAQ’s

Which podcast publishers are included in the Top Publishers Ranking?

In order for a publisher to be considered for inclusion in this ranking, they must use the Podtrac measurement system for their shows, and Podtrac must have at least 30 days of data for the publisher.  Podtrac measures podcasts from thousands of publishers, including most top publishers, and lists the 10 with the largest unique US monthly audience in its Top Publishers Ranking. Podtrac measurement is free to use by any publisher.

How does Podtrac define a podcast publisher?

For purposes of our publisher ranking, we define publishers as producers and publishers who create, own and distribute podcasts.  Groups that do not produce content, such as ad and content networks, are not included in our ranking.

How does Podtrac define a podcast?

Podtrac adheres to the Wikipedia technical definition endorsed by the Internet Advertising Bureau (IAB):

“A podcast is an episodic series of digital audio files which a user can download and listen to. It is often available for subscription, so that new episodes are automatically downloaded via web syndication to the user’s own local computer, mobile application, or portable media player.”

Podtrac makes no judgements based on non-technical factors such as content or episode length.

The November 2017 Top Podcast Publisher ranking was revised in January 2018.