Harmonic Executive and Leadership Team

June, 2026

Leadership Overview

Harmonic has 8 executives leading key functions including strategy, finance, operations, and revenue.

Driven by innovation, Harmonic is dedicated to developing advanced video routing, server, and storage solutions for global media and internet companies, shaping the future of video distribution.

Leadership Roles at Harmonic

  • Founder & Chief Executive Officer - Joseph Walter
  • Chief Executive Officer & Founder & Oriental Medicine Doctor - Dr Birch
  • Chief Executive Officer & President - Missye Clarke
  • President & Chief Executive Officer - Nimrod Ben-Natan
  • Chief Financial Officer - Walter Jankovic
  • Chief Operating Officer - Katie Bash
  • President of Broadband Access - Patrick Harshman
  • President & Principal - Guillermo Isidro
  • Chief Information Officer - Chason Alexander
  • Chief Revenue Officer - Aaron Bartel
  • Joseph Walter - Founder & Chief Executive Officer

    Joseph Walter, the Founder & Chief Executive Officer at Harmonic, architects the company's strategic direction and operational framework. Walter drives the overarching vision for Harmonic's technology development, focusing on video routing, server, and storage products. This leadership role involves guiding the company's expansion within the television and internet video distribution sectors. By fostering innovation, Joseph Walter ensures Harmonic maintains its competitive edge in a rapidly evolving market. The Chief Executive Officer's responsibilities extend to overseeing critical business functions and ensuring alignment with long-term growth objectives. Walter's strategic insights are fundamental to Harmonic's market position.

    Dr Birch - Chief Executive Officer & Founder & Oriental Medicine Doctor

    Dr Birch, the Chief Executive Officer & Founder & Oriental Medicine Doctor at Harmonic, directs the company's strategic initiatives and operational execution. Birch's leadership encompasses the core mission of Harmonic, which is to provide advanced video routing, server, and storage solutions. This role involves steering the company's technological advancements and market penetration strategies within the broadcast and internet video industries. By focusing on innovation and client needs, Dr Birch ensures Harmonic's continued relevance and growth. The Chief Executive Officer's influence is critical in shaping the company's product roadmap and overall business development. Birch's unique background informs a holistic approach to leadership and organizational health.

    Missye Clarke - Chief Executive Officer & President

    Missye Clarke, the Chief Executive Officer & President at Harmonic, spearheads the company's strategic vision and global operations. Clarke's leadership drives Harmonic's mission to deliver cutting-edge video routing, server, and storage solutions to the broadcast and internet media landscape. This executive position involves overseeing all facets of business development, technological innovation, and market expansion. By fostering a culture of excellence, Missye Clarke ensures Harmonic consistently meets the evolving demands of video content producers and distributors. The Chief Executive Officer & President's focus remains on enhancing operational efficiency and driving revenue growth. Clarke's strategic direction is pivotal to Harmonic's sustained success and industry leadership.

    Nimrod Ben-Natan - President & Chief Executive Officer

    Nimrod Ben-Natan, the President & Chief Executive Officer at Harmonic, directs the company's comprehensive strategy and global business operations. Ben-Natan's leadership is central to Harmonic's mission of providing advanced video routing, server, and storage solutions for television and internet video distribution. This executive role involves overseeing product innovation, market expansion, and financial performance across all divisions. By championing technological advancements, Nimrod Ben-Natan ensures Harmonic remains at the forefront of the media technology sector. The President & Chief Executive Officer's responsibilities include fostering strategic partnerships and driving operational excellence. Ben-Natan's vision guides Harmonic's commitment to empowering content creators and distributors worldwide.
    Nimrod Ben-Natan

    Walter Jankovic - Chief Financial Officer

    Walter Jankovic, the Chief Financial Officer at Harmonic, manages the company's financial strategy and fiscal operations. Jankovic oversees all aspects of financial planning, accounting, and reporting, ensuring robust fiscal health for Harmonic's video routing, server, and storage solutions business. This critical role involves optimizing financial performance, managing capital allocation, and supporting strategic investments in technology and market growth. By maintaining stringent financial controls, Walter Jankovic safeguards the company's assets and enhances shareholder value. The Chief Financial Officer's expertise is vital in navigating complex market dynamics and driving sustainable profitability. Jankovic's guidance ensures financial stability and supports Harmonic's long-term objectives.

    Katie Bash - Chief Operating Officer

    Katie Bash, the Chief Operating Officer at Harmonic, oversees the company's day-to-day operational functions and process optimization. Bash directs the execution of Harmonic's business strategies, ensuring efficient delivery of video routing, server, and storage solutions to clients worldwide. This role involves managing supply chain logistics, manufacturing operations, and customer support services to enhance overall productivity. By streamlining workflows and implementing best practices, Katie Bash drives operational excellence and cost efficiency. The Chief Operating Officer's commitment to quality and reliability is fundamental to Harmonic's reputation. Bash's leadership ensures seamless execution of the company's global business objectives.

    Patrick Harshman - President of Broadband Access

    Patrick Harshman, the President of Broadband Access at Harmonic, leads the strategic development and market expansion of Harmonic's broadband access solutions. Harshman directs initiatives focused on delivering innovative technology for cable operators and service providers, enhancing their network capabilities. This executive position involves overseeing product innovation, sales strategies, and customer engagement within the broadband sector. By driving technological advancements, Patrick Harshman ensures Harmonic's leadership in providing high-performance broadband infrastructure. The President of Broadband Access's focus is on enabling faster, more reliable internet services globally. Harshman's expertise is critical to Harmonic's growth in the telecommunications market.
    Patrick Harshman

    Guillermo Isidro - President & Principal

    Guillermo Isidro, the President & Principal at Harmonic, drives strategic initiatives and operational oversight for key business segments. Isidro's leadership focuses on advancing Harmonic's mission to provide cutting-edge video routing, server, and storage solutions. This executive role involves guiding business development, fostering innovation, and ensuring alignment across critical operational areas. By championing strategic growth, Guillermo Isidro enhances Harmonic's market position and client value. The President & Principal's responsibilities include cultivating strong relationships with stakeholders and driving performance excellence. Isidro's strategic vision is integral to Harmonic's continued success and industry influence.

    Chason Alexander - Chief Information Officer

    Chason Alexander, the Chief Information Officer at Harmonic, directs the company's information technology strategy and infrastructure. Alexander oversees the development and implementation of robust IT systems that support Harmonic's operations in video routing, server, and storage solutions. This leadership position involves ensuring data security, optimizing network performance, and driving digital transformation initiatives across the organization. By leveraging technology, Chason Alexander enhances operational efficiency and supports the company's innovation pipeline. The Chief Information Officer's focus is on building scalable and secure IT environments that align with Harmonic's business objectives. Alexander's strategic IT vision is integral to Harmonic's competitive advantage.

    Aaron Bartel - Chief Revenue Officer

    Aaron Bartel, the Chief Revenue Officer at Harmonic, leads the company's global sales, marketing, and revenue generation strategies. Bartel is responsible for driving top-line growth by expanding Harmonic's market reach for its video routing, server, and storage products. This executive function involves overseeing all revenue-generating activities, including direct sales, channel partnerships, and customer success initiatives. By fostering strong client relationships and identifying new market opportunities, Aaron Bartel ensures sustained revenue expansion. The Chief Revenue Officer's strategic focus is on maximizing market share and achieving ambitious financial targets. Bartel's leadership is key to Harmonic's commercial success and market penetration.
    Aaron Bartel

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    Frequently Asked Questions Regarding Harmonic Top Executives and Leadership Team

    Who leads Harmonic?
    Harmonic is led by Joseph Walter (Founder & Chief Executive Officer), along with executives such as Dr Birch (Chief Executive Officer & Founder & Oriental Medicine Doctor) and Missye Clarke (Chief Executive Officer & President).
    Who is part of Harmonic’s executive team?
    The executive team of Harmonic includes leaders such as Joseph Walter (Founder & Chief Executive Officer), Dr Birch (Chief Executive Officer & Founder & Oriental Medicine Doctor), Missye Clarke (Chief Executive Officer & President) and other senior executives.
    How many executives does Harmonic have?
    Harmonic has 10 executives leading key business areas.
    What roles are included in Harmonic’s leadership team?
    The leadership team of Harmonic includes roles such as Founder & Chief Executive Officer, Chief Executive Officer & Founder & Oriental Medicine Doctor, Chief Executive Officer & President, President & Chief Executive Officer, Chief Financial Officer.