Multiply is the first AI-native media agency for B2B companies. The company emerged from stealth with $9.5 million in funding to introduce what it calls the next paradigm: Self-Learning Advertising, where ads use internal data to continuously get better on their own. The round was led by Mayfield, with participation from Sorenson Capital, Instacart Co-Founder Max Mullen, Google Head of Gemini and Google Labs Josh Woodward, and executives from HubSpot, Braze, Issuu, Brex, Sierra, and Common Room, among others.