Global online audio advertising is forecast to grow faster than the overall ad market this year, reaching $16.6 billion, according to new WARC Media data.
The outlook points to continued opportunity for podcast and audio publishers, but the concentration of digital ad revenue among a few major platforms makes measurement, audience strategy, and strong production increasingly important.
Key takeaways
WARC’s figures describe the broader online audio advertising market, not podcast advertising alone. They also suggest that market growth will take place alongside substantial concentration in digital advertising.
- Global ad spending is forecast to rise 11.9% this year.
- Online audio ad revenue is projected to grow 9.9% to $16.6 billion, then increase another 7.5% next year.
- Amazon, Alphabet, and Meta are expected to capture 59.7% of ad revenue, excluding China.
Audio is growing, but the forecast covers more than podcasts
The projected 9.9% increase puts online audio on a strong growth path, although its forecast rate is below the overall ad market’s 11.9% expansion. WARC expects audio’s growth to continue into next year, with a further 7.5% increase.
Because the estimate covers online audio broadly, it should not be read as a podcast-only revenue figure. Still, podcast publishers operate within this expanding digital audio environment, where advertisers are assessing how audio reaches audiences across platforms and formats.
Platform concentration remains a defining issue
Amazon, Alphabet, and Meta are forecast to account for nearly three-fifths of advertising revenue outside China. That concentration matters to publishers and advertisers weighing where to invest, how to reach listeners, and how to evaluate campaign performance.
For podcast and video producers, platform reach can be valuable, but relying on a single channel can leave audience development exposed to changes in distribution or measurement. Maintaining a clear view of audience and performance across services is an increasingly practical part of publishing strategy.
What creators and publishers can take from the outlook
A growing market does not guarantee that every show will see higher ad income. Outcomes will depend on audience demand, sales arrangements, measurement, and the ability to deliver suitable inventory to advertisers.
Consistent production and a recognizable format can help shows build the trust and repeat listening that support sustainable monetization.
For teams producing both audio and video, the forecast is a reason to plan distribution deliberately rather than assume that one format or platform will capture all the opportunity.
PodcastVideos.com covers the production workflows and publishing technologies behind that work; whatever the format, creators benefit from tracking how each channel contributes to discovery and engagement.
