Spark Foundry Executive and Leadership Team

June, 2026

Leadership Overview

Spark Foundry has 11 executives leading key functions including strategy, operations, and account management.

Driven by innovation, Spark Foundry operates as a global media agency, dedicated to delivering data-driven solutions and impactful campaigns that shape market dynamics.

Leadership Roles at Spark Foundry

  • Chief Executive Officer - Isabel Cerdeira
  • Group Chief Executive Officer - John Wanko
  • Chief Operating Officer - Shaukat Mahmud
  • President - Maryann Rusnak
  • President, Region (West) - Kathryn Dillon
  • President - Jaclyn Sinclair
  • President, Account Management - Adam Vernick
  • President - Liam O'Neill
  • President, Data Technology Analytics Insights - Peter Sedlarcik
  • Chief of Staff - Megan Gavin
  • Isabel Cerdeira - Chief Executive Officer

    Isabel Cerdeira, the Chief Executive Officer at Spark Foundry, directs the overarching strategic vision and global operations. Overseeing all business units, Cerdeira ensures alignment with Publicis Groupe's objectives and drives the agency's expansion into new markets. This leadership role involves cultivating key client relationships and fostering an environment of innovation. By championing data-centric approaches, Isabel Cerdeira enhances campaign effectiveness and client ROI. The Chief Executive Officer's mandate includes optimizing agency performance and solidifying Spark Foundry's position as a leader in media innovation.
    Isabel Cerdeira

    John Wanko - Group Chief Executive Officer

    John Wanko, the Group Chief Executive Officer at Spark Foundry, spearheads the strategic direction for the agency's collective operations. Wanko's responsibilities encompass driving synergistic growth across all divisions and ensuring the cohesive execution of global strategies. This executive position demands a deep understanding of market trends and competitive landscapes. By fostering cross-functional collaboration, John Wanko elevates the agency's service offerings and client value proposition. The Group Chief Executive Officer's focus remains on maximizing operational efficiency and achieving sustained business expansion.

    Shaukat Mahmud - Chief Operating Officer

    Shaukat Mahmud, the Chief Operating Officer at Spark Foundry, manages the day-to-day operational framework and resource allocation. Mahmud oversees the implementation of efficient processes across all departments, ensuring seamless service delivery and operational excellence. This critical role involves optimizing workflows and driving productivity improvements throughout the organization. By streamlining internal systems, Shaukat Mahmud directly contributes to enhanced client satisfaction and agency profitability. The Chief Operating Officer's focus is on maintaining robust operational integrity and supporting scalable growth initiatives.

    Maryann Rusnak - President

    Maryann Rusnak, the President at Spark Foundry, leads significant client portfolios and drives strategic growth initiatives. Rusnak oversees the development and execution of innovative media strategies tailored to client objectives, ensuring maximum impact and return on investment. This leadership position involves cultivating strong client partnerships and identifying new business opportunities. By championing client success, Maryann Rusnak strengthens Spark Foundry's market reputation and drives revenue growth. The President's focus is on delivering exceptional client outcomes and expanding the agency's service offerings.

    Kathryn Dillon - President, Region (West)

    Kathryn Dillon, the President, Region (West) at Spark Foundry, directs all operations and client engagements across the western United States. Dillon is responsible for expanding market share and driving revenue growth within this key geographic territory. This role demands a deep understanding of regional market dynamics and client needs. By leading the West region's strategic initiatives, Kathryn Dillon ensures localized success and strengthens Spark Foundry's national presence. The President, Region (West)'s objective is to deliver exceptional performance and foster strong client relationships throughout the western markets.

    Jaclyn Sinclair - President

    Jaclyn Sinclair, the President at Spark Foundry, drives strategic client partnerships and oversees the delivery of integrated media solutions. Sinclair focuses on enhancing client value through innovative campaign development and performance optimization. This executive role involves leading teams to achieve ambitious client goals and foster long-term relationships. By championing data-driven strategies, Jaclyn Sinclair ensures measurable results and strengthens Spark Foundry's reputation for excellence. The President's mandate includes expanding client success and driving agency growth through superior service delivery.
    Jaclyn Sinclair

    Adam Vernick - President, Account Management

    Adam Vernick, the President, Account Management at Spark Foundry, leads the client services division, ensuring exceptional partner experiences. Vernick oversees the strategic direction for account teams, focusing on client retention and growth through proactive engagement and tailored solutions. This position requires a comprehensive understanding of client needs and market trends. By fostering strong client relationships and driving service excellence, Adam Vernick directly impacts client satisfaction and agency revenue. The President, Account Management's goal is to elevate client partnerships and ensure the consistent delivery of impactful media strategies.

    Liam O'Neill - President

    Liam O'Neill, the President at Spark Foundry, spearheads strategic growth and operational excellence across key business segments. O'Neill directs the development and implementation of innovative media strategies designed to meet evolving client demands and market challenges. This leadership role involves fostering a culture of performance and accountability. By driving strategic initiatives and optimizing resource allocation, Liam O'Neill enhances the agency's competitive edge and client value proposition. The President's focus remains on achieving sustained growth and solidifying Spark Foundry's market leadership.

    Peter Sedlarcik - President, Data Technology Analytics Insights

    Peter Sedlarcik, the President, Data Technology Analytics Insights at Spark Foundry, leads the agency's advanced analytics and technology capabilities. Sedlarcik drives the integration of data science, technology solutions, and actionable insights to inform media strategies and enhance campaign performance. This role is crucial for leveraging data to unlock client growth opportunities. By championing innovation in data and technology, Peter Sedlarcik positions Spark Foundry at the forefront of data-driven marketing. The President, Data Technology Analytics Insights' objective is to deliver measurable business outcomes through sophisticated analytical approaches.
    Peter Sedlarcik

    Megan Gavin - Chief of Staff

    Megan Gavin, the Chief of Staff at Spark Foundry, provides strategic support and operational coordination for the executive leadership team. Gavin facilitates key initiatives, manages cross-departmental projects, and ensures effective communication flows throughout the organization. This position requires a broad understanding of agency operations and strategic priorities. By driving project execution and managing critical workflows, Megan Gavin enhances the efficiency of executive decision-making. The Chief of Staff's role is integral to advancing Spark Foundry's strategic objectives and operational agility.

    Explore Leadership Teams in Advertising Networks

    Frequently Asked Questions Regarding Spark Foundry Top Executives and Leadership Team

    Who leads Spark Foundry?
    Spark Foundry is led by Isabel Cerdeira (Chief Executive Officer), along with executives such as John Wanko (Group Chief Executive Officer) and Shaukat Mahmud (Chief Operating Officer).
    Who is part of Spark Foundry’s executive team?
    The executive team of Spark Foundry includes leaders such as Isabel Cerdeira (Chief Executive Officer), John Wanko (Group Chief Executive Officer), Shaukat Mahmud (Chief Operating Officer) and other senior executives.
    How many executives does Spark Foundry have?
    Spark Foundry has 10 executives leading key business areas.
    What roles are included in Spark Foundry’s leadership team?
    The leadership team of Spark Foundry includes roles such as Chief Executive Officer, Group Chief Executive Officer, Chief Operating Officer, President, President, Region (West).