Experienced GTM and analytics leader to unify marketing, data, and revenue strategy to accelerate AI-driven CX innovation

Five9, Inc. (NASDAQ:FIVN) ("Five9"), provider of the Intelligent CX Platform, today announced the appointment of Jay Lee as Chief Marketing and Growth Officer, effective April 6, 2026. This new role unites global marketing with revenue strategy and operations to create a more powerfully aligned go-to-market (GTM) engine for a cohesive, insights-driven, and streamlined experience for customers and partners at every stage of their journey with Five9.

Lee brings extensive experience driving business transformation, growth, and measurable financial outcomes across enterprise technology and payments industries. His appointment reflects Five9's continued investment in integrating marketing, operations, data, and analytics to accelerate innovation and deliver more personalized, intelligent customer experiences.

"Jay's appointment comes at a defining moment for Five9 as we continue to accelerate our leadership in AI-powered customer experience," said Amit Mathradas, CEO, Five9. "His ability to connect sales and customer-facing teams with underlying data and analytics to influence how we market is exactly what companies need in this next era of CX. Jay brings a rare combination of strategic marketing vision, creativity, and operational rigor, with a deep understanding of how to translate customer insight into meaningful business outcomes. As we advance our CX vision, where human expertise and AI work seamlessly together, Jay will be instrumental in helping our customers unlock greater value from their customer experience investments."

"I'm thrilled to join Five9 at such a pivotal moment," said Jay Lee, Chief Marketing and Growth Officer, Five9. "Customer experience, data, and commerce are converging faster than ever, and Five9 is uniquely positioned to lead that transformation. I look forward to working with the team to strengthen our brand further, deepen customer relationships, and drive measurable business impact through innovative, data-driven marketing and GTM strategies."

Lee joins Five9 from Icertis, where he served as Chief Marketing Officer, leading a global marketing and sales development organization driving brand, demand generation, and GTM planning and execution. Prior to Icertis, he served as Chief Marketing Officer at Avalara, where he led global demand generation and communications strategies to support commercial growth across markets and customer segments. Earlier in his career, Lee held senior leadership roles across B2B and B2C organizations, including GE Capital, American Express, and PayPal. His background across consulting, finance, marketing, and enterprise technology has shaped a disciplined, data-first approach to go-to-market strategy, with deep expertise in revenue operations and execution.

Lee is known for his collaborative leadership style, emphasizing idea generation, thoughtful problem-solving, and mentorship to help teams build durable, real-world skills across strategy, storytelling, and execution. He holds an MBA from Columbia University and a Bachelor of Science in Electrical Engineering from Cornell University.

About Five9

Five9 empowers organizations to create hyper-personalized and effortless AI-driven customer experiences that deliver better business outcomes. Powered by Five9 Genius AI, the Five9 Intelligent CX Platform is trusted by 3,000+ customers and 1,400+ partners globally. The New CX starts here, and it's at the heart of every winning experience. For more information, visit www.five9.com.

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Hannah Blackington

Corporate Communications Director

Press@five9.com

Five9 Appoints Jay Lee as Chief Marketing and Growth Officer