Sonnant

Sonnant operates an audio advertising marketplace and programmatic advertising platform serving the podcast, radio, and video industries. The company connects publishers and platforms with advertisers, using AI-powered targeting and analytics to optimize ad campaigns and improve return on ad spend.

Its core technology, Smart AdMarkers, uses machine learning to automatically detect optimal ad placement points within audio content, factoring in elements such as sentiment, energy, and brand suitability. The platform generates contextual metadata, including IAB categories, which supports targeted ad placement and content searchability, and can be applied to both new episodes and existing archives.

Sonnant serves podcast producers, publishers, and digital advertising buyers looking to increase ad inventory, attract premium ad rates, and reduce manual effort in ad marker creation. The platform allows users to adjust ad marker frequency and ad slot parameters, and supports experimentation with different ad placement profiles to measure listener engagement and revenue impact.