Waterloo, Ontario, Canada, March 2026 – eSentire has appointed Tim O’Rourke as Chief Marketing Officer (CMO), strengthening its leadership as the company continues to expand its global footprint in cybersecurity and managed detection and response (MDR) services.
In his new role, Tim will lead global marketing strategy, brand positioning, demand generation, and customer engagement, supporting eSentire’s mission to help organizations proactively defend against evolving cyber threats.
In his current role at eSentire, Tim O’Rourke steps in as Chief Marketing Officer, bringing strategic marketing leadership to drive growth, enhance market presence, and support enterprise adoption of advanced cybersecurity solutions.
Tim brings extensive experience in marketing leadership and business strategy, with a strong focus on driving brand transformation, scaling go-to-market strategies, and delivering measurable business impact across global markets.
Over the course of his career, he has built deep expertise in technology and cybersecurity domains, leading initiatives that align marketing with product innovation, customer success, and revenue growth.
His leadership is characterized by a strong emphasis on data-driven decision-making, customer-centric marketing, and digital transformation, enabling organizations to navigate complex market landscapes and achieve sustainable growth.
With a proven track record in building high-performance teams and executing impactful marketing strategies, Tim is well-positioned to contribute significantly to eSentire’s next phase of growth and innovation.
Tim holds an MBA in Marketing from Harvard Business School, further strengthening his foundation in strategic marketing and leadership.
About eSentire
eSentire is a global leader in Managed Detection and Response (MDR), protecting the critical data and applications of over 2,000 organizations across 80+ countries and 35 industries.
Founded in 2001, the company focuses on hunting, investigating, and stopping cyber threats before they disrupt business operations, combining machine learning-powered XDR technology, 24/7 threat hunting, and expert security operations.
Through services such as Continuous Threat Exposure Management (CTEM), MDR, and Incident Response, eSentire enables organizations to mitigate risk, enhance resilience, and secure operations at scale.
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