Montreal-based Stingray Advertising has inked a joint sales agreement with Vibenomics, an experiential tech and retail media company owned by in-store audio company Mood Media.

Both parties are standardizing on Vibenomics’ adtech for delivering in-store audio ads and contributing to their respective networks. The two sales teams are selling the total combined network to achieve national scale for brand reach.

The partnership creates the largest digital audio retail ad network in the U.S., reaching over 800 million monthly shoppers across more than 25,000 brick and mortar locations, including grocery, drug, convenience and home improvement retailers.

Stingray’s U.S. ambitions got a big boost earlier this year when it acquired InStore Audio Network. It also aligns with the company’s goals on aligning its audio ad network with the growth in retail media: so far this year, it has signed deals to measure the effectiveness of audio OOH ads and to bring Walmart into its network.

Eric Boyko, president, co-founder and CEO of Stingray, says the partnership with Vibenomics offers national scale that “presents a unique advantage to the market with more consistency across networks, improved transparency and more predictable CPM and fill rates for retailers. Our alliance sets a new standard for retail advertising nationwide.”