Multiply Secures $9.5 Million to Launch Self-Learning AI Advertising for B2B Companies

San Francisco startup Multiply officially emerged from stealth today, announcing a $9.5 million funding round led by Mayfield. The company aims to redefine B2B marketing by introducing Self-Learning Advertising, a system where ads use internal company data to continuously improve. This funding round also saw participation from Sorenson Capital and prominent executives from Google, HubSpot, and Instacart.

The agency addresses a common frustration known as decaying ads, where campaign effectiveness drops shortly after launch as creative becomes stale. Unlike traditional models, Multiply connects directly to a client’s CRM and sales call recordings to understand why customers actually buy. This information is then funneled into an AI system that generates new creative and messaging in real time to keep performance high.

Early customers are already reporting significant gains in their sales pipelines. Vanta, a security automation leader, saw a 770 percent increase in sales meetings since partnering with the agency. Other clients, such as Listen Labs, report that their LinkedIn campaigns are performing five times above industry benchmarks. Across its current user base, Multiply reports aggregate pipeline increases between 300 and 500 percent.

The technology is powered by a suite of specialized AI agents that handle various aspects of the advertising lifecycle. These include a Creative Design Agent that refreshes images weekly and an A/B Testing Agent that runs hundreds of parallel experiments. By automating these labor-intensive tasks, the agency can iterate at a speed that traditional human-led firms cannot match.

Co-founders Matt Jayson and Ashish Warty bring deep industry expertise from their previous roles at Google, Brex, and Dropbox. Jayson describes the platform as an insatiable AI agent that is never satisfied with current pipeline numbers. While the focus is currently on Google and LinkedIn, the infrastructure is designed to adapt to emerging platforms like ChatGPT ads.

Looking ahead, Multiply plans to expand into a full omni-channel buyer for B2B organizations. The roadmap includes daily creative refreshes and unified cross-channel attribution to maximize impact across all major networks. More information about their approach can be found at https://gomultiply.com/.