Zeta Executive and Leadership Team

July, 2026

Leadership Overview

Zeta has 10 executives leading key functions including operations, revenue, finance, information technology, people, and product innovation.

Driven by data-driven marketing technology, Zeta is dedicated to empowering companies to create, maintain, and monetize customer relationships through a comprehensive suite of multichannel marketing tools, fostering deep engagement and measurable business outcomes.

Leadership Roles at Zeta

  • Chief Financial Officer - Christopher Greiner
  • Chief of Staff To the Chief Financial Officer - Madison Serras
  • Chief Operating Officer - Matthew Mobley
  • President, ZX - Bryan Seltzer
  • President, Ai & Data Labs - Nathaniel Yohannes
  • President and General Manager Activation - Jed Hartman
  • Chief Revenue Officer - 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 company's financial strategy and operations, ensuring fiscal health and driving sustainable growth. This executive oversees all financial planning, reporting, and capital allocation, directly supporting Zeta's mission to provide advanced marketing technology. Greiner's responsibilities include optimizing financial performance and managing investor relations, crucial for a company focused on monetizing customer relationships. The Chief Financial Officer's leadership ensures that Zeta's investments in innovation and client acquisition are strategically aligned with long-term profitability. Christopher Greiner plays a key role in evaluating market opportunities and financial risks, guiding the company's expansion efforts. This financial oversight is fundamental to Zeta's ability to maintain its competitive edge and deliver consistent value to stakeholders through its data-driven solutions.
    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, provides critical strategic support to the CFO, enhancing financial operations and decision-making. This role involves coordinating key financial initiatives and ensuring seamless communication across departments regarding fiscal matters. Serras facilitates the execution of financial strategies that underpin Zeta's data-driven marketing technology offerings. The Chief of Staff To the Chief Financial Officer's focus is on streamlining processes and driving efficiency within the finance function, directly impacting the company's ability to monetize customer relationships effectively. Madison Serras supports the financial leadership in navigating complex market dynamics and optimizing resource allocation. This position is instrumental in ensuring the financial integrity and strategic alignment of Zeta's operations.

    Matthew Mobley - Chief Operating Officer

    Matthew Mobley, the Chief Operating Officer at Zeta, directs the operational framework supporting Zeta's data-driven marketing technology solutions. Overseeing the execution of multichannel marketing strategies, Mobley ensures the seamless delivery of tools designed for creating, maintaining, and monetizing customer relationships. This leadership involves optimizing internal processes to enhance efficiency and scalability across all Zeta operations. By focusing on operational excellence, Matthew Mobley drives the company's ability to provide robust and reliable marketing technology to its clients. The Chief Operating Officer's role is critical in translating strategic objectives into tangible operational results, ensuring Zeta's infrastructure effectively supports its market expansion and client service commitments. Mobley's oversight extends to managing the day-to-day functions that underpin Zeta's commitment to innovation and client success in the competitive marketing technology landscape.
    Matthew Mobley

    Bryan Seltzer - President, ZX

    Bryan Seltzer, the President, ZX at Zeta, directs the strategic vision and operational execution for Zeta's ZX division, focusing on advanced marketing solutions. This leadership role is pivotal in driving the innovation and deployment of Zeta's data-driven technology, aimed at enhancing customer relationship management. Seltzer oversees the development and delivery of ZX's offerings, ensuring they meet the evolving needs of clients seeking to create, maintain, and monetize customer interactions. The President, ZX's focus is on expanding market reach and solidifying Zeta's position as a leader in marketing technology. Bryan Seltzer's leadership ensures that the ZX division consistently delivers impactful solutions that generate measurable business outcomes for clients, driving revenue and fostering loyalty.

    Nathaniel Yohannes - President, Ai & Data Labs

    Nathaniel Yohannes, the President, Ai & Data Labs at Zeta, spearheads the company's artificial intelligence and data science initiatives, driving innovation in marketing technology. This executive leads the development of cutting-edge AI and data solutions that empower clients to create, maintain, and monetize customer relationships with unprecedented precision. Yohannes's strategic direction ensures Zeta's data labs remain at the forefront of technological advancement, enhancing the effectiveness of multichannel marketing tools. The President, Ai & Data Labs's role is critical in translating complex data insights into actionable strategies for clients. Nathaniel Yohannes's leadership fosters a culture of continuous research and development, positioning Zeta as a leader in AI-driven customer engagement and data monetization.
    Nathaniel Yohannes

    Jed Hartman - President and General Manager Activation

    Jed Hartman, the President and General Manager Activation at Zeta, leads the strategic direction and operational oversight for Zeta's Activation business unit. This executive focuses on maximizing client engagement and campaign performance through Zeta's comprehensive suite of data-driven marketing tools. Hartman's responsibilities include driving growth and innovation within the Activation segment, ensuring clients can effectively create, maintain, and monetize customer relationships. The President and General Manager Activation's leadership ensures seamless integration of Zeta's technology to deliver measurable results and enhance customer lifetime value. Jed Hartman's expertise is crucial in optimizing marketing strategies and solidifying Zeta's market leadership in activation services.

    Micki Howl - Chief Revenue Officer

    Micki Howl, the Chief Revenue Officer at Zeta, spearheads all revenue generation initiatives, driving growth across Zeta's diverse client base. This executive directs the global sales organization, focusing on expanding market penetration for Zeta's suite of multichannel marketing tools. Howl's strategic imperative involves fostering strong client partnerships and ensuring the effective monetization of customer relationships through data-driven solutions. The Chief Revenue Officer's leadership ensures alignment between sales strategies and the company's mission to provide cutting-edge marketing technology. Micki Howl's focus is on maximizing revenue streams by identifying new market opportunities and enhancing the value proposition for existing clients. This role is pivotal in translating Zeta's technological capabilities into measurable financial success and sustained market leadership. Howl's efforts directly contribute to Zeta's expansion and its reputation as a leader in customer relationship management technology.

    Jeffry Nimeroff - Chief Information Officer

    Jeffry Nimeroff, the Chief Information Officer at Zeta, directs the company's information technology strategy and infrastructure, ensuring robust data security and operational efficiency. This executive oversees the technological backbone that supports Zeta's data-driven marketing solutions, crucial for creating, maintaining, and monetizing customer relationships. Nimeroff's leadership focuses on implementing advanced IT systems that enhance the performance and reliability of Zeta's multichannel marketing tools. The Chief Information Officer's role is vital in safeguarding sensitive client data and ensuring compliance with industry regulations. Jeffry Nimeroff drives innovation in IT, enabling the company to leverage data effectively for client success. This strategic IT management is essential for Zeta's continued growth and its commitment to providing secure, high-performance marketing technology solutions.

    Brendan Beroff - Deputy Chief of Staff

    Brendan Beroff, the Deputy Chief of Staff at Zeta, supports the executive leadership team in executing strategic initiatives and operational objectives. This role involves facilitating cross-functional collaboration and ensuring the efficient implementation of Zeta's data-driven marketing technology solutions. Beroff assists in managing key projects that enhance the creation, maintenance, and monetization of customer relationships. The Deputy Chief of Staff's responsibilities include driving operational improvements and supporting the strategic alignment of various business units. Brendan Beroff contributes to the overall effectiveness of Zeta's leadership by ensuring that critical priorities are addressed and executed with precision. This position is vital for maintaining momentum in Zeta's pursuit of market leadership in marketing technology.

    Candice Chafey - Chief People Officer

    Candice Chafey, the Chief People Officer at Zeta, leads human resources strategy, focusing on talent acquisition, development, and fostering a high-performance culture. This executive ensures that Zeta's workforce is equipped to deliver innovative data-driven marketing technology solutions. Chafey's mandate includes cultivating an environment that supports the company's mission to create, maintain, and monetize customer relationships. The Chief People Officer's leadership is crucial for attracting and retaining top talent essential for Zeta's growth and technological advancement. Candice Chafey drives initiatives that enhance employee engagement and align people strategies with business objectives. This role is fundamental to building a strong organizational foundation that supports Zeta's market position and client success.

    Explore Leadership Teams in Business Services

    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 Matthew 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), Matthew 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, ZX, President, Ai & Data Labs.