Zeta Global Executive and Leadership Team

October, 2026

Leadership Overview

Zeta has 10 executives leading key functions including marketing, revenue, finance, operations, and strategic account management.

Focused on empowering brands through data-driven marketing technology, [[Zeta]] delivers a comprehensive suite of multichannel tools designed to optimize customer relationships and drive sustainable growth across global markets.

Leadership Roles at Zeta Global

  • Chief Financial Officer - Christopher Greiner
  • Chief of Staff To the Chief Financial Officer - Madison Serras
  • President and General Manager Activation - Jed Hartman
  • President - Steve Gerber
  • President & Senior VP, Edu & of Strategic Accounts Actions - John Nuclo
  • President, CRM - Pamela Lord
  • Chief Marketing Officer - Leah Pope
  • Chief Revenue Officer - Donald Steele
  • Deputy Chief of Staff - Brendan Beroff
  • Chief Revenue Officer & Advisor - Kelly Kennedy
  • Christopher Greiner - Chief Financial Officer

    Christopher Greiner, the Chief Financial Officer at Zeta, governs the financial planning, capital allocation, and investor relations functions. Overseeing the fiscal health of the organization, the Chief Financial Officer ensures the efficient deployment of resources to support the company's data-driven marketing technology roadmap. This leadership role involves managing complex financial reporting requirements and maintaining transparency with stakeholders. By optimizing the cost structure and driving operational efficiency, Greiner supports the firm's aggressive growth objectives. The Chief Financial Officer collaborates with the executive team to evaluate potential acquisitions and strategic investments that enhance the platform's capabilities. Through rigorous financial modeling and risk assessment, Christopher Greiner secures the stability of the enterprise. Ultimately, the Chief Financial Officer provides the fiscal foundation necessary for the company to innovate and scale its multichannel marketing solutions globally.
    Christopher Greiner

    Madison Serras - Chief of Staff To the Chief Financial Officer

    Madison Serras, the Chief of Staff To the Chief Financial Officer at Zeta, manages the administrative and strategic workflow for the finance department. Overseeing the preparation of financial briefings and executive presentations, the Chief of Staff To the Chief Financial Officer ensures that the finance leadership team remains focused on core fiscal objectives. This leadership role involves coordinating internal audits and managing the flow of information between the finance department and other business units. By streamlining the communication of financial performance, Serras supports the decision-making process of the Chief Financial Officer. The Chief of Staff To the Chief Financial Officer tracks the execution of financial initiatives and ensures that all departmental goals align with the broader corporate strategy. Ultimately, Madison Serras drives the operational effectiveness of the finance function through meticulous planning and project management.

    Jed Hartman - President and General Manager Activation

    Jed Hartman, the President and General Manager Activation at Zeta, leads the execution and deployment of the company's marketing activation tools. Overseeing the operational delivery of customer relationship management solutions, the President and General Manager Activation ensures that clients successfully leverage the platform to monetize their data. This leadership role involves managing the technical implementation teams and ensuring that the activation suite meets the evolving needs of the market. By driving the adoption of advanced marketing features, Hartman optimizes the value delivered to the company's client base. The President and General Manager Activation coordinates with product engineering to refine the activation workflow. Through the management of large-scale client deployments, Jed Hartman ensures that the company's technology remains at the forefront of the industry. Ultimately, the President and General Manager Activation drives the practical application of the firm's marketing technology.

    Steve Gerber - President

    Steve Gerber, the President at Zeta, oversees the day-to-day operations and the execution of the company's overarching business strategy. Managing the integration of various business units, the President ensures that the firm's multichannel marketing tools function as a cohesive ecosystem. This leadership role involves driving operational excellence across all departments to support the company's growth trajectory. By fostering collaboration between the product, sales, and finance teams, Gerber ensures that the organization remains agile in a rapidly changing market. The President monitors the performance of key business segments and implements improvements to enhance efficiency. Through the leadership of the executive team, Steve Gerber drives the company's mission to create and maintain customer relationships. Ultimately, the President secures the operational success of the firm by aligning internal processes with the needs of the global market.

    John Nuclo - President & Senior VP, Edu & of Strategic Accounts Actions

    John Nuclo, the President & Senior VP, Edu & of Strategic Accounts Actions at Zeta, directs the educational initiatives and the management of high-value strategic accounts. Overseeing the development of training programs for clients, the President & Senior VP, Edu & of Strategic Accounts Actions ensures that users maximize the utility of the company's marketing technology. This leadership role involves managing the relationships with the firm's most critical accounts to ensure long-term retention and growth. By providing specialized education and strategic support, Nuclo helps clients navigate the complexities of multichannel marketing. The President & Senior VP, Edu & of Strategic Accounts Actions coordinates with the sales and product teams to tailor solutions for these key partners. Through the cultivation of deep client partnerships, John Nuclo drives the expansion of the company's influence within the education and enterprise sectors.

    Pamela Lord - President, CRM

    Pamela Lord, the President, CRM at Zeta, leads the development and strategy of the company's customer relationship management division. Overseeing the product roadmap for CRM tools, the President, CRM ensures that the platform effectively enables companies to create, maintain, and monetize customer relationships. This leadership role involves managing the product lifecycle and ensuring that the CRM suite remains competitive in the data-driven marketing space. By integrating advanced analytics into the CRM framework, Lord empowers clients to gain deeper insights into their customer base. The President, CRM collaborates with the engineering and marketing teams to deliver innovative features that address the needs of the modern enterprise. Through the strategic management of the CRM portfolio, Pamela Lord drives the company's mission to provide comprehensive marketing solutions. Ultimately, the President, CRM secures the firm's position as a leader in customer relationship technology.

    Leah Pope - Chief Marketing Officer

    Leah Pope, the Chief Marketing Officer at Zeta, directs all global brand positioning and demand generation initiatives. Overseeing the development of multichannel marketing campaigns, the Chief Marketing Officer ensures alignment with the company's data-driven mission. This leadership role involves scaling brand awareness across North American and international markets to capture new enterprise segments. By leveraging proprietary data insights, Pope optimizes the customer acquisition funnel and strengthens market presence. The Chief Marketing Officer collaborates with product teams to refine the value proposition of the marketing technology suite. Through rigorous analysis of market trends, Pope drives engagement strategies that convert prospects into long-term partners. Ultimately, the Chief Marketing Officer secures the competitive positioning of the firm within the crowded marketing technology landscape.
    Leah Pope

    Donald Steele - Chief Revenue Officer

    Donald Steele, the Chief Revenue Officer at Zeta, manages the overarching sales strategy and revenue growth targets. Overseeing the enterprise sales organization, the Chief Revenue Officer drives the adoption of the company's multichannel marketing tools among large-scale clients. This leadership role involves architecting complex deal structures and expanding the footprint of the platform within the retail and financial services sectors. By aligning sales operations with client success metrics, Steele ensures consistent quarterly performance and long-term contract renewals. The Chief Revenue Officer coordinates with the product development team to translate market feedback into actionable revenue opportunities. Through the implementation of high-velocity sales processes, Steele accelerates the conversion of strategic accounts. Ultimately, the Chief Revenue Officer maintains the financial health of the organization by scaling revenue streams across diverse geographic regions.

    Brendan Beroff - Deputy Chief of Staff

    Brendan Beroff, the Deputy Chief of Staff at Zeta, coordinates cross-functional initiatives and streamlines executive decision-making processes. Overseeing the operational flow between departments, the Deputy Chief of Staff ensures that strategic priorities receive the necessary attention and resources. This leadership role involves managing high-priority projects that span the entire marketing technology ecosystem. By facilitating communication between the C-suite and internal teams, Beroff drives organizational alignment and project velocity. The Deputy Chief of Staff monitors key performance indicators to track the progress of corporate objectives. Through the synthesis of complex data, Brendan Beroff provides actionable insights that inform executive strategy. Ultimately, the Deputy Chief of Staff enhances the overall efficiency of the leadership team by removing operational bottlenecks and fostering a culture of accountability across the company's global operations.

    Kelly Kennedy - Chief Revenue Officer & Advisor

    Kelly Kennedy, the Chief Revenue Officer & Advisor at Zeta, provides high-level guidance on revenue optimization and long-term market expansion. Overseeing the advisory framework for the sales organization, the Chief Revenue Officer & Advisor ensures that the company maintains a competitive edge in the marketing technology sector. This leadership role involves mentoring senior sales leaders and refining the go-to-market strategy for new product launches. By analyzing market shifts and customer behavior, Kennedy identifies emerging revenue streams and growth opportunities. The Chief Revenue Officer & Advisor collaborates with the executive team to integrate advisory insights into the company's core business model. Through the application of deep industry expertise, Kelly Kennedy strengthens the firm's relationships with key enterprise clients. Ultimately, the Chief Revenue Officer & Advisor secures the long-term viability of the company's revenue engine.
    Kelly Kennedy

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    Frequently Asked Questions Regarding Zeta Global Top Executives and Leadership Team

    Who leads Zeta Global?
    Zeta Global is led by Christopher Greiner (Chief Financial Officer), along with executives such as Madison Serras (Chief of Staff To the Chief Financial Officer) and Jed Hartman (President and General Manager Activation).
    Who is part of Zeta Global’s executive team?
    The executive team of Zeta Global includes leaders such as Christopher Greiner (Chief Financial Officer), Madison Serras (Chief of Staff To the Chief Financial Officer), Jed Hartman (President and General Manager Activation) and other senior executives.
    How many executives does Zeta Global have?
    Zeta Global has 10 executives leading key business areas.
    What roles are included in Zeta Global’s leadership team?
    The leadership team of Zeta Global includes roles such as Chief Financial Officer, Chief of Staff To the Chief Financial Officer, President and General Manager Activation, President, President & Senior VP, Edu & of Strategic Accounts Actions.