Sequen Secures $16M to Bring Sub-Second AI Personalization to the Enterprise

NEW YORK, NY – March 17, 2026 – AI startup Sequen announced today it has closed a $16 million Series A funding round, bringing its total capital raised to $22 million. The round was co-led by White Star Capital and Threshold Ventures, with continued participation from existing investors like Greycroft. The fresh capital is earmarked to scale Sequen's platform, which provides enterprise consumer companies with the ability to personalize user experiences in real-time, adapting to in-session behavior in milliseconds.

Sequen is tackling one of the most significant challenges for modern businesses: delivering the kind of hyper-relevant, dynamic experiences that users have come to expect from tech giants, but without needing billions of users or massive historical datasets. The company's platform aims to level the playing field, offering sophisticated AI infrastructure that can shape user behavior and drive business outcomes from the moment a user lands on a site or opens an app.

“Modern consumer technology isn’t just recommending content anymore, it’s shaping behavior over time,” said Zoë Weil, Founder and CEO of Sequen. “What we’ve built is the ability to do this without needing billions of users, solving the data sparsity issue enterprise companies face. We train on behavior, not identity, effectively replacing the cookie and enabling real-time optimization for consumer-scale businesses.”

Beyond the Cookie: A New Paradigm for Personalization

At the heart of Sequen's offering is a proprietary technology it calls Large Event Models (LEMs). Unlike traditional personalization engines that rely on static user profiles, purchase history, or third-party cookies, LEMs are trained on the dynamic, fleeting signals of live user engagement. The platform analyzes sequences of micro-interactions—such as clicks, scrolls, hovers, and views—to understand a user's intent during their current session.

This approach allows Sequen to predict a user's next action and dynamically re-rank everything from search results to product recommendations on the fly. The company’s purpose-built infrastructure is optimized for sub-20 millisecond decisioning, a speed that is imperceptible to the user but critical for creating a fluid, responsive experience. By focusing on transient behavior rather than fixed identity, Sequen provides a powerful alternative in a digital world moving away from invasive tracking methods like third-party cookies.

This technology directly addresses the “data sparsity” problem, where businesses lack the massive volume of user data that powers the recommendation engines of companies like Meta or Google. Sequen’s LEMs are designed to generalize behavioral patterns from much smaller datasets, enabling any enterprise to deploy sophisticated, adaptive AI that was previously out of reach. This effectively democratizes access to the kind of reinforcement learning that can continuously optimize for business goals like conversion rates and revenue.

From Code to Conversions: Proving the Business Impact

The investment comes as Sequen demonstrates tangible results for its clients. The company reports that since its seed round, it has partnered with several Fortune 500 consumer companies, which have seen a “material lift in conversion and revenue within days of deployment.” Having scaled from concept to production in under 18 months, the platform now processes over 20 billion requests monthly.

One such client is the popular rewards app Fetch. “We're constantly looking for ways to make the Fetch app more rewarding for our users and we have some of the best AI scientists in the industry working on improving conversion every day,” said Ori Schnaps, Chief Technology Officer at Fetch. “Sequen built on that foundation and helped us unlock a substantial lift in conversions, showing us what's possible when a world-class internal team and the right external partner pull in the same direction.”

Investors highlighted this direct link to revenue as a key factor in their decision. “The consumer internet has fundamentally changed. User expectations have been reset by AI, and every major platform is now scrambling to catch up,” said Lisa Xu, Partner at Threshold Ventures. “This is not an efficiency play. This is enterprise-ready AI that makes money, and Sequen's platform is going to become foundational infrastructure for every consumer company that wants to compete in the AI era.”

To further empower its clients, Sequen recently introduced RankTune, a platform that enables a company's internal teams to build, create features, and rapidly iterate on Sequen’s frontier models without the immense operational burden of managing low-latency AI infrastructure.

A Leadership Team Forged in Big Tech

Investor confidence is also rooted in the deep domain expertise of Sequen's leadership. CEO Zoë Weil’s career has been dedicated to building the very systems Sequen now offers to the broader market, with senior AI roles at Etsy and as SVP of AI at Citi. Her experience is complemented by a founding team with pedigrees from Google DeepMind, Anthropic, Meta, and Etsy.

“Zoë is a once-in-a-generation founder. Her entire career has been spent building and scaling the ranking systems that drive revenue for the world's largest enterprises,” noted Eddie Lee, General Partner at White Star Capital. “Our conviction was immediate. When a founder combines that depth of domain expertise with this level of execution, our job as investors is simple: remove every obstacle to global scale.”

The team was recently bolstered by the addition of Raphael Louca as Chief Product Officer, who joins from Meta where he worked on its own advanced ranking and personalization systems. This concentration of talent from the world's leading AI and consumer tech companies gives Sequen significant credibility as it challenges established players in the product discovery and marketing technology space.

The new funding will be used to accelerate product development and expand the team to meet what the company describes as rapidly growing enterprise demand. As businesses seek a competitive edge in an AI-driven world, Sequen is betting that turning relevance into a real-time revenue engine is no longer a luxury for the few, but a necessity for all.