Multiply Raises $9.5M for AI-Powered B2B Advertising

In a significant development for the B2B advertising landscape, Multiply has successfully closed a $9.5 million funding round to propel its innovative 'Self-Learning Advertising' platform. This new approach leverages proprietary AI to continuously refine ad campaigns, moving beyond the traditional model where ad effectiveness diminishes over time. The funding, which saw participation from prominent investors including Mayfield (leading the round), Sorenson Capital, Instacart Co-Founder Max Mullen, Google's Head of Gemini and Google Labs Josh Woodward, and executives from industry leaders like HubSpot, Braze, Issuu, Brex, Sierra, and Common Room, signals strong market confidence in Multiply's disruptive vision.

Multiply's core offering addresses a long-standing challenge in digital marketing: the rapid obsolescence of ad creative and targeting strategies. By integrating directly with a company's internal data sources – including sales conversations, CRM systems, and pipeline outcomes – the platform's AI agents analyze what truly drives customer acquisition. This allows for the dynamic generation of ad copy, messaging, and audience segmentation that directly reflects buyer motivations and competitive advantages. Early adopters have reported dramatic improvements, with some experiencing pipeline increases of 300% to 500% and significant boosts in sales meetings booked, such as Vanta reporting a 770% surge in sales meetings.

The company, co-founded by seasoned tech leaders Matt Jayson (formerly of Google and Brex) and Ashish Warty (ex-HackerOne, Dropbox, Airship), operates as a hybrid AI and human-powered media agency. This model combines the speed and analytical power of AI with the strategic oversight and brand-compliance expertise of human media buyers. Multiply's AI suite includes specialized agents for customer insights, ideal customer profile (ICP) analysis, quality score optimization, creative design, and rapid A/B testing, enabling hundreds of experiments to run concurrently and identify winning strategies at an unprecedented pace.

This funding injection is particularly timely as the B2B advertising market, estimated at $50 billion, undergoes a significant transformation driven by AI. Multiply's platform is designed not only to optimize current campaigns on platforms like Google Search and LinkedIn but also to prepare businesses for the advent of new AI-driven advertising formats, such as those emerging on platforms like ChatGPT. The company's infrastructure is built for adaptability, ensuring that learnings from existing channels can be seamlessly transferred to future advertising paradigms.

Patrick Salyer, Partner at Mayfield and a board member at Multiply, highlighted the paradigm shift, stating, "Service-as-Software is redefining how companies grow, and Multiply has built the first AI model for B2B advertising. Instead of static campaigns managed manually, Multiply has become a compounding growth engine for every company it partners with." This perspective underscores the move towards more dynamic, data-driven growth engines rather than traditional, static marketing efforts.

Looking ahead, Multiply plans to expand its services to encompass a full omni-channel advertising solution for B2B enterprises. Future developments include broader platform integration, daily creative refreshes, unified cross-channel attribution, and AI-powered budget allocation to maximize pipeline impact across all advertising touchpoints. The company's ambition is to become the go-to platform for B2B companies seeking to navigate and capitalize on the evolving AI-driven advertising ecosystem.