Zoetis Executive and Leadership Team

September, 2026

Leadership Overview

Zoetis has 6 executives leading key functions including technology transformation, information systems, executive operations, marketing logistics, regional finance, and international market expansion.

Focused on advancing animal health through innovation, Zoetis delivers essential medicines and diagnostic solutions to veterinarians and livestock producers globally while maintaining a commitment to scientific excellence.

Leadership Roles at Zoetis

  • Senior Director, Chief of Staff, Office of the Chief Executive Officer - Lee Penn
  • Regional Chief Financial Officer, Latin America (Canada) - Renato Vilas Boas
  • Regional President, & Africa (Asia Pacific) - Stephanie Armstrong
  • Chief Technology Officer & Head of Transformation & Portfolio Management - Mark Chomow
  • Chief Information Officer, Greater (China, APAC) - Michael Tao
  • Chief Marketing Officer & Logistics Coordinator - Gokce Tan
  • Lee Penn - Senior Director, Chief of Staff, Office of the Chief Executive Officer

    Lee Penn, the Senior Director, Chief of Staff, Office of the Chief Executive Officer at Zoetis, coordinates strategic priorities and operational workflows for the executive leadership team. By managing the flow of critical information, Penn ensures alignment between corporate vision and departmental execution across all pharmaceutical divisions. This role involves facilitating high-level board communications and monitoring the progress of key business initiatives related to animal health medicines and vaccines. Overseeing the administrative and strategic functions of the office, the Senior Director, Chief of Staff, Office of the Chief Executive Officer drives cross-functional collaboration to achieve organizational goals. Lee Penn synthesizes complex data into actionable insights, enabling the executive team to respond effectively to shifting market demands. Through the maintenance of rigorous governance standards, the Senior Director, Chief of Staff, Office of the Chief Executive Officer supports the long-term growth and stability of the company within the global veterinary industry.

    Renato Vilas Boas - Regional Chief Financial Officer, Latin America (Canada)

    Renato Vilas Boas, the Regional Chief Financial Officer, Latin America (Canada) at Zoetis, directs the financial planning, reporting, and fiscal strategy for operations across the Americas. By overseeing capital allocation and budgetary controls, Boas ensures the financial health of regional business units focused on livestock and companion animal health. This role involves managing currency risks and regulatory compliance within diverse economic environments to support sustainable revenue growth. Overseeing the financial performance of regional sales and distribution networks, the Regional Chief Financial Officer, Latin America (Canada) provides critical insights that guide investment in new pharmaceutical products. Renato Vilas Boas collaborates with local leadership to optimize cost structures and improve operational margins. Through the implementation of rigorous financial oversight, the Regional Chief Financial Officer, Latin America (Canada) secures the resources necessary for expanding market reach and maintaining the company's strong financial position within the competitive veterinary medicine industry.

    Stephanie Armstrong - Regional President, & Africa (Asia Pacific)

    Stephanie Armstrong, the Regional President, & Africa (Asia Pacific) at Zoetis, leads the commercial strategy and operational execution for the company across diverse international markets. By driving the adoption of animal health medicines and diagnostic products, Armstrong expands the footprint of the organization within the livestock and companion animal sectors. This role involves navigating complex regulatory landscapes and building partnerships with veterinary distributors to ensure product accessibility. Overseeing the growth of regional operations, the Regional President, & Africa (Asia Pacific) aligns local market initiatives with the broader corporate mission of advancing animal wellness. Stephanie Armstrong manages cross-functional teams to deliver high-quality service to livestock producers and retail outlets. Through the strategic oversight of regional performance, the Regional President, & Africa (Asia Pacific) fosters innovation and market penetration, ensuring the company remains a trusted partner for veterinarians and animal owners throughout the expansive and high-potential regions of Africa and the Asia Pacific.

    Mark Chomow - Chief Technology Officer & Head of Transformation & Portfolio Management

    Mark Chomow, the Chief Technology Officer & Head of Transformation & Portfolio Management at Zoetis, directs the digital infrastructure and enterprise-wide modernization initiatives. By architecting scalable platforms, Chomow ensures the seamless integration of advanced diagnostic technologies into the broader animal health portfolio. This leadership role involves aligning technical roadmaps with long-term commercial objectives to optimize manufacturing efficiency and product development cycles. Overseeing complex transformation projects, the Chief Technology Officer & Head of Transformation & Portfolio Management drives operational agility across global research facilities. Mark Chomow maintains rigorous oversight of portfolio management, ensuring resource allocation supports high-impact pharmaceutical breakthroughs. Through the implementation of data-driven systems, the Chief Technology Officer & Head of Transformation & Portfolio Management enhances the speed at which vaccines and medicines reach veterinary markets, ultimately strengthening the competitive position of the organization within the global pharmaceutical landscape.

    Michael Tao - Chief Information Officer, Greater (China, APAC)

    Michael Tao, the Chief Information Officer, Greater (China, APAC) at Zoetis, manages the information technology architecture and data security frameworks across the Asia-Pacific region. By deploying robust digital solutions, Tao supports the complex supply chain requirements for livestock and companion animal products in high-growth markets. This role involves coordinating with regional leadership to ensure data integrity and system reliability for veterinary distributors and retail outlets. Overseeing the digital transformation of regional operations, the Chief Information Officer, Greater (China, APAC) facilitates real-time analytics that inform strategic decision-making for local market expansion. Michael Tao optimizes connectivity between manufacturing sites and commercial teams, ensuring consistent service delivery. Through the integration of advanced cloud-based tools, the Chief Information Officer, Greater (China, APAC) secures the technological foundation necessary for maintaining market leadership in the competitive animal health sector across the diverse and rapidly evolving Asian landscape.

    Gokce Tan - Chief Marketing Officer & Logistics Coordinator

    Gokce Tan, the Chief Marketing Officer & Logistics Coordinator at Zoetis, architects the global brand strategy and distribution logistics for the company's extensive range of animal health products. By aligning marketing campaigns with supply chain capabilities, Tan ensures that vaccines, dermatology treatments, and oncology products reach veterinarians and livestock producers with maximum efficiency. This role involves analyzing market trends to identify growth opportunities for companion animal and livestock segments. Overseeing the coordination of complex logistics networks, the Chief Marketing Officer & Logistics Coordinator optimizes inventory management to meet international demand. Gokce Tan drives engagement with veterinary distributors through targeted outreach and technical support programs. Through the integration of marketing intelligence and logistical precision, the Chief Marketing Officer & Logistics Coordinator enhances the visibility and availability of essential pharmaceutical solutions, directly contributing to the sustained market success and brand reputation of the organization on a global scale.

    Explore Leadership Teams in Manufacturing

    Frequently Asked Questions Regarding Zoetis Top Executives and Leadership Team

    Who leads Zoetis?
    Zoetis is led by Lee Penn (Senior Director, Chief of Staff, Office of the Chief Executive Officer), along with executives such as Renato Vilas Boas (Regional Chief Financial Officer, Latin America (Canada)) and Stephanie Armstrong (Regional President, & Africa (Asia Pacific)).
    Who is part of Zoetis’s executive team?
    The executive team of Zoetis includes leaders such as Lee Penn (Senior Director, Chief of Staff, Office of the Chief Executive Officer), Renato Vilas Boas (Regional Chief Financial Officer, Latin America (Canada)), Stephanie Armstrong (Regional President, & Africa (Asia Pacific)) and other senior executives.
    How many executives does Zoetis have?
    Zoetis has 6 executives leading key business areas.
    What roles are included in Zoetis’s leadership team?
    The leadership team of Zoetis includes roles such as Senior Director, Chief of Staff, Office of the Chief Executive Officer, Regional Chief Financial Officer, Latin America (Canada), Regional President, & Africa (Asia Pacific), Chief Technology Officer & Head of Transformation & Portfolio Management, Chief Information Officer, Greater (China, APAC).