Virtana Appoints Veteran CFO David Stack to Accelerate Expansion in $14B Observability Market

Seasoned finance executive brings his proven track record of scaling high-growth technology companies to the expanding observability market.

PALO ALTO, Calif., Aug. 18, 2025 /PRNewswire/ -- Virtana, the leader in deep observability, today announced the appointment of David Stack as Chief Financial Officer. With demand for unified observability accelerating as enterprises modernize their IT Operations, Stack will lead Virtana's financial strategy to scale the business and deliver measurable value to customers navigating hybrid and distributed environments.

Stack brings over two decades of proven financial leadership across high-growth technology companies and large-scale enterprises, with a track record of driving significant revenue expansion, successful market scaling, and executing complex mergers and acquisitions. As CFO at HubSpot, he helped guide the company through hypergrowth phases and strategic market expansions. His executive experience spans multiple successful technology companies, including Localytics, EMC, and RSA Security. Stack has also served on boards and as an advisor to high-growth companies such as Crayon, Wellframe, and BrandYourself, bringing deep expertise in scaling operations, leading M&A activity, and navigating competitive technology markets.

"The observability market represents one of the most compelling growth opportunities in enterprise technology today, and Virtana is well-positioned to capture a significant share," said Stack. "The combination of their pioneering work in AI infrastructure observability, the strategic value of multiple recent acquisitions, and the talented leadership team they've assembled creates unique differentiation for market expansion. I'm excited to join this leadership team at such a pivotal moment and help execute the financial strategy that will drive Virtana's next phase of growth."

Paul Appleby, CEO of Virtana, emphasized the strategic importance of the appointment. "David brings exactly the combination of enterprise-scale experience and high-growth company agility we need as we execute our expansion strategy. His proven ability to scale financial operations while maintaining strategic focus has been demonstrated across multiple successful technology companies. As we accelerate both our organic and inorganic growth plans and capitalize on enterprise adoption of AI factories across every major industry, David's expertise will be instrumental in maximizing our market impact and operational efficiency."

This strategic leadership addition reinforces Virtana's commitment to advancing its role as a trusted partner for enterprises navigating hybrid and AI-driven infrastructure. With its expanding capabilities and experienced leadership team, Virtana is well-positioned to help organizations gain real-time visibility, optimize performance, and control costs across increasingly complex IT environments.

The global observability market is projected to reach $14 billion by 2028,¹ creating significant opportunities for innovation and growth. The appointment comes during a period of strong momentum for Virtana, marked by:

• Acquisition of Zenoss to expand event intelligence and service observability capabilities
• Launch of AI Factory Observability (AIFO) to deliver full-stack visibility and optimization for GPU clusters and AI workloads
• Multiple patent awards for innovations using AI to accelerate application dependency mapping, cloud migration, and cost optimization
• Strategic collaborations with NVIDIA and Hitachi to extend technical capabilities and market reach
• Launch of the Virtana Platform to unify visibility across on-premises, cloud, and Kubernetes environments
• Hiring of CRO Kate FitzGerald to drive global sales expansion
• Acquisition of OpsCruise to strengthen container and cloud-native monitoring capabilities

About Virtana
Virtana is the leader in observability for hybrid infrastructure. The AI-powered Virtana Platform delivers a unified view across applications, services, and underlying infrastructure, correlating user impact, service dependencies, performance bottlenecks, and cost drivers in real time. Trusted by Global 2000 enterprises, Virtana helps IT, operations, and platform teams improve efficiency, reduce risk, and make faster, AI-driven decisions across complex, dynamic environments. Learn more at virtana.com.

Notes and Disclaimers
¹ Source: Gartner, Forecast: IT Operations Management Software, Worldwide, 2022-2028, 2Q24 Update.

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SOURCE Virtana