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John
Clark
Vice President
Vonage
From securing category leadership to upskilling teams, John turns vision into results and challenges into growth. As an award-winning Global Vice President of Marketing, John thrives at the intersection of market opportunity and organizational realignment. With 15+ years of global marketing leadership experience, his career progression is built on a proven record of aligning go-to-market (GTM) strategies with evolving market demands, scaling inherited teams, and delivering double-digit revenue growth across leading $1B+ SaaS and AI software portfolios. John's success is defined by customer-centric GTM strategies, reshaping markets for competitive advantage, and fostering cross-functional collaboration across Marketing, Product Management, and Sales. At the heart of my leadership philosophy is a passion for empowering teams, which has led to measurable improvements in employee engagement, performance and outcomes. Whether crafting category-defining product positioning, launching AI-driven solutions, or integrating campaign strategies, John consistently enables organizations to exceed revenue goals while adapting to emerging market dynamics.
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18 November 2025 12:00 - 12:30
People first, platforms second
This keynote makes the case that talent, judgment, and institutional knowledge remain the real competitive advantage, and offers a framework for investing in people even as technology budgets grow. Marketing leaders can drive transformation by aligning teams around buyer-defined differentiation, navigating change effectively, and building the right operating model to support it. The session will explore what worked well, what didn’t, and the more untidy realities of transformation in practice.