Zeta Executive and Leadership Team

August, 2026

Leadership Overview

Zeta has 10 executives leading key functions including revenue generation, operational scaling, information technology, financial management, and organizational development.

Focused on advancing data-driven marketing technology, Zeta empowers global enterprises to cultivate, sustain, and monetize complex customer relationships through a sophisticated suite of multichannel tools and strategic insights.

Leadership Roles at Zeta

  • Chief Financial Officer - Christopher Greiner
  • Chief of Staff To the Chief Financial Officer - Madison Serras
  • Chief Operating Officer - Matt Mobley
  • President and General Manager Activation - Jed Hartman
  • President of Zeta Actions - Narendra Amarineni
  • President, ZX - Bryan Seltzer
  • Chief Revenue Officer - Michelena (Micki) Howl
  • Chief Information Officer - Jeffry Nimeroff
  • Deputy Chief of Staff - Brendan Beroff
  • Chief People Officer - Candice Chafey
  • Christopher Greiner - Chief Financial Officer

    Christopher Greiner, the Chief Financial Officer at Zeta, manages the fiscal health and capital allocation strategies of the organization. Overseeing financial planning, reporting, and investor relations, the Chief Financial Officer ensures that the company maintains the resources necessary to fuel innovation in marketing technology. This leadership role involves analyzing market trends to guide long-term investment decisions and operational budgeting. By maintaining rigorous financial discipline, Christopher Greiner directly supports the company's ability to scale its multichannel marketing tools and expand its global footprint. Greiner works closely with the board and executive leadership to communicate financial performance and strategic growth opportunities to stakeholders. Through the precise management of capital and risk, the Chief Financial Officer provides the stability required for the company to pursue aggressive growth targets while delivering consistent value to shareholders and clients alike.
    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, coordinates the strategic initiatives and administrative priorities within the finance department. Overseeing the flow of information between the Chief Financial Officer and other executive leaders, the Chief of Staff To the Chief Financial Officer ensures that financial objectives remain aligned with the company's broader operational goals. This leadership role involves managing complex projects that require cross-departmental collaboration and high-level analytical support. By facilitating efficient communication and decision-making processes, Madison Serras directly enhances the productivity of the finance team. Serras monitors key performance indicators to provide actionable insights that inform executive strategy. Through the effective management of departmental workflows, the Chief of Staff To the Chief Financial Officer enables the finance organization to operate with maximum agility, ensuring that all fiscal activities support the company's mission of driving data-driven marketing success.

    Matt Mobley - Chief Operating Officer

    Matt Mobley, the Chief Operating Officer at Zeta, manages the internal infrastructure and operational efficiency required to support a high-growth marketing technology firm. Overseeing the integration of cross-functional workflows, the Chief Operating Officer ensures that the company's data-driven tools function seamlessly across all client-facing platforms. This leadership role involves streamlining internal processes to enhance service delivery and operational agility on a global scale. By refining the execution of core business services, Matt Mobley directly supports the company's mission to monetize customer relationships effectively. Mobley coordinates with the executive team to align operational capacity with long-term strategic objectives, ensuring that the organization remains responsive to shifting market demands. Through rigorous oversight of internal systems, the Chief Operating Officer maintains the high standards of performance necessary to sustain the company's competitive advantage in the digital marketing sector.
    Matt Mobley

    Jed Hartman - President and General Manager Activation

    Jed Hartman, the President and General Manager Activation at Zeta, leads the execution and deployment of marketing campaigns across the company's activation platforms. Overseeing the delivery of multichannel marketing solutions, the President and General Manager Activation ensures that client strategies are translated into effective, data-driven actions. This leadership role involves managing the operational teams responsible for campaign performance and client satisfaction. By optimizing the activation process, Jed Hartman directly enables the company to help clients monetize their customer relationships with precision and scale. Hartman coordinates with product and sales teams to ensure that the activation tools meet the evolving needs of the market. Through the strategic oversight of campaign delivery, the President and General Manager Activation drives measurable results for enterprise clients, ensuring that the company's marketing technology remains at the forefront of the industry's performance standards.

    Narendra Amarineni - President of Zeta Actions

    Narendra Amarineni, the President of Zeta Actions at Zeta, manages the development and implementation of specific action-oriented marketing technologies. Overseeing the product roadmap for the company's activation suite, the President of Zeta Actions ensures that the technology remains capable of driving real-time customer engagement. This leadership role involves integrating advanced data analytics into the action platform to enhance the effectiveness of client marketing efforts. By focusing on the technical execution of marketing strategies, Narendra Amarineni directly supports the company's mission to create and maintain valuable customer relationships. Amarineni collaborates with engineering and data science teams to push the boundaries of what the platform can achieve for global brands. Through the continuous improvement of the action suite, the President of Zeta Actions ensures that the company provides the most advanced tools for marketers to execute their campaigns with speed and accuracy.

    Bryan Seltzer - President, ZX

    Bryan Seltzer, the President, ZX at Zeta, leads the specialized division focused on advanced marketing solutions and strategic partnerships. Overseeing the growth and development of the ZX unit, the President, ZX ensures that the company's most innovative marketing tools reach key market segments. This leadership role involves identifying new opportunities for expansion and fostering relationships that enhance the company's market position. By driving the strategic direction of the ZX division, Bryan Seltzer directly contributes to the company's overall mission of providing comprehensive, data-driven marketing technology. Seltzer works to align the division's output with the needs of enterprise clients, ensuring that the solutions provided are both scalable and highly effective. Through the leadership of this specialized unit, the President, ZX plays a vital role in the company's ability to adapt to changing industry trends and maintain its status as a leader in the marketing technology space.

    Michelena (Micki) Howl - Chief Revenue Officer

    Michelena (Micki) Howl, the Chief Revenue Officer at Zeta, directs all global sales initiatives and revenue growth strategies. Overseeing the expansion of market share across North American and international territories, the Chief Revenue Officer ensures alignment between client acquisition goals and the broader data-driven marketing technology mission. This leadership role involves architecting high-impact sales funnels that leverage the company's multichannel tools to solve complex customer relationship challenges. By optimizing conversion paths and fostering long-term partnerships, Michelena (Micki) Howl directly impacts the financial trajectory of the organization. Through constant collaboration with the product and marketing teams, Howl secures competitive positioning in the crowded martech landscape. Ultimately, the Chief Revenue Officer drives sustainable revenue streams by translating technical capabilities into tangible business value for a diverse portfolio of enterprise clients.

    Jeffry Nimeroff - Chief Information Officer

    Jeffry Nimeroff, the Chief Information Officer at Zeta, architects the scalable cloud infrastructure and data processing capabilities that underpin the company's marketing technology suite. Overseeing the security and integrity of massive datasets, the Chief Information Officer ensures that all technical systems remain robust and compliant with global standards. This leadership role involves driving innovation in data analytics and machine learning to enhance the efficacy of multichannel marketing tools. By optimizing the underlying technology stack, Jeffry Nimeroff directly enables the company to deliver precise, data-driven insights to enterprise clients. Nimeroff collaborates with engineering teams to maintain a high-performance environment that supports rapid product development and deployment. Through the continuous evolution of the technical architecture, the Chief Information Officer secures the company's position as a leader in the data-driven marketing industry, ensuring that all digital assets remain secure and highly accessible.

    Brendan Beroff - Deputy Chief of Staff

    Brendan Beroff, the Deputy Chief of Staff at Zeta, supports the executive office by managing high-priority initiatives and organizational alignment. Overseeing the execution of strategic projects, the Deputy Chief of Staff ensures that the leadership team remains focused on core business objectives related to marketing technology and customer relationship management. This leadership role involves bridging communication gaps between departments to foster a cohesive operational environment. By streamlining executive workflows and managing critical project timelines, Brendan Beroff directly contributes to the company's ability to execute its mission efficiently. Beroff provides essential support in tracking organizational progress and ensuring that all teams remain synchronized with the company's long-term vision. Through the diligent management of executive priorities, the Deputy Chief of Staff enables the leadership team to navigate complex market challenges and maintain a strong focus on delivering value to enterprise clients.

    Candice Chafey - Chief People Officer

    Candice Chafey, the Chief People Officer at Zeta, directs the human capital strategy and organizational culture initiatives. Overseeing talent acquisition, employee development, and performance management, the Chief People Officer ensures that the company attracts and retains the expertise required to lead in the marketing technology sector. This leadership role involves fostering an inclusive and high-performance environment that aligns with the company's mission of innovation and data-driven excellence. By implementing programs that support professional growth and employee engagement, Candice Chafey directly impacts the company's ability to deliver superior service to its clients. Chafey collaborates with the executive team to ensure that organizational structure supports the company's strategic goals. Through the cultivation of a strong, diverse workforce, the Chief People Officer builds the foundation for long-term success, ensuring that the company remains a preferred destination for top talent in the competitive tech industry.

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    Frequently Asked Questions Regarding Zeta Top Executives and Leadership Team

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