Multiply emerges from stealth with $9.5M for AI-native B2B ads
San Francisco-based startup Multiply has raised $9.5 million in funding to tackle what it calls “decaying ads”—the common drop-off in performance many B2B campaigns experience soon after launch as messaging becomes stale and feedback loops lag.
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 companies including HubSpot, Braze, Brex, and Common Room.
Replacing slow agency cycles with “Self-Learning Advertising”
Co-founder and CEO Matt Jayson said traditional agency models often capture only a fraction of what drives customers to buy, leading to mixed lead quality and slow iteration. Multiply instead connects directly to sales calls and CRM data to identify buyer pain points and triggers, then uses AI agents to run hundreds of structured experiments across messaging, audiences, and creative.
Jayson claims the approach can deliver “300% to 500% more pipeline from ads,” positioning the company as an AI-native managed service rather than a standalone software vendor.
Founders and early results
Multiply was founded by Matt Jayson (formerly Google and Brex) and co-founder/CTO Ashish Warty (former SVP Engineering at HackerOne, previously at Dropbox and Airship). The startup says it currently focuses on Google Search and LinkedIn ads, using internal data—sales meeting recordings, CRM records, and customer emails—to continuously refresh copy, targeting, and design.
Among cited outcomes, Vanta reported 770% more sales meetings, while Listen Labs said LinkedIn became its most efficient paid channel, performing five times above platform benchmarks. Multiply also reported a 900% improvement for one customer after switching from another agency.
Roadmap: more channels and ChatGPT-era formats
The company plans to expand to additional platforms including Meta, Reddit, and G2, increase creative refresh frequency to daily, and build unified cross-channel attribution with automated budget allocation. It also says its infrastructure is being designed for emerging formats such as ChatGPT-style conversational ads. Multiply has 13 employees and expects to reach 25 by year-end, according to Jayson.
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