Eos Energy Enterprises Executive and Leadership Team

July, 2026

Leadership Overview

Eos Energy Enterprises has 4 executives leading key functions including strategy, operations, technology, and legal.

Driven by innovation, Eos Energy Enterprises accelerates the shift to clean energy with positively ingenious solutions that transform how the world stores power, offering a reliable energy storage alternative.

Leadership Roles at Eos Energy Enterprises

  • Chief Executive Officer - Joseph Mastrangelo
  • Chief Operating Officer - John Mahaz
  • Chief Technology Officer - Francis Richey
  • Chief Legal Officer & Corporate Secretary - Michael Silberman
  • Joseph Mastrangelo - Chief Executive Officer

    Joseph Mastrangelo, the Chief Executive Officer at Eos Energy Enterprises, directs the company's overall strategy and vision. Mastrangelo guides the organization's mission to accelerate the shift to clean energy through innovative power storage solutions. Overseeing all executive functions, the Chief Executive Officer ensures alignment with market demands and technological advancements in the energy sector. This leadership position involves driving the company's growth and market penetration, particularly with the Znyth aqueous zinc battery technology. By focusing on scalable, efficient, and sustainable energy storage, Joseph Mastrangelo champions the development of reliable alternatives to conventional lithium-ion systems for utility, industrial, commercial, and residential customers. The Chief Executive Officer's role is critical in positioning Eos Energy Enterprises as a leader in the U.S. manufacturing of advanced energy storage.

    John Mahaz - Chief Operating Officer

    John Mahaz, the Chief Operating Officer at Eos Energy Enterprises, executes the company's operational strategies to deliver advanced energy storage solutions. Mahaz oversees the manufacturing and deployment of the Znyth aqueous zinc battery, ensuring production meets rigorous standards for safety, scalability, and efficiency. The Chief Operating Officer manages the supply chain and operational logistics, critical for U.S.-based manufacturing. This role involves optimizing production processes to support the company's mission of transforming how the world stores power. By focusing on operational excellence, John Mahaz ensures that Eos Energy Enterprises provides a proven, reliable energy storage alternative for diverse applications. The Chief Operating Officer's oversight extends to maintaining high levels of product quality and customer satisfaction across utility, industrial, commercial, and residential sectors.
    John Mahaz

    Francis Richey - Chief Technology Officer

    Francis Richey, the Chief Technology Officer at Eos Energy Enterprises, architects the technological innovation behind the company's energy storage systems. Richey leads the research and development efforts focused on the Znyth aqueous zinc battery, driving advancements beyond conventional lithium-ion limitations. The Chief Technology Officer ensures the technology is safe, scalable, efficient, and sustainable, aligning with Eos's mission to transform power storage. This position involves overseeing the technical roadmap and intellectual property strategy. By championing breakthrough solutions, Francis Richey supports the delivery of reliable energy storage alternatives for utility, industrial, commercial, and residential customers. The Chief Technology Officer's expertise is fundamental to maintaining Eos Energy Enterprises' competitive edge in the clean energy sector.
    Michael Silberman, the Chief Legal Officer & Corporate Secretary at Eos Energy Enterprises, provides critical legal counsel and ensures robust corporate governance. Silberman oversees all legal affairs, including compliance, intellectual property, and regulatory matters pertinent to energy storage and manufacturing. The Chief Legal Officer & Corporate Secretary safeguards the company's interests while facilitating its strategic objectives in the clean energy market. This role involves managing legal risks associated with innovative technology development and U.S.-based production. By ensuring adherence to legal frameworks, Michael Silberman supports Eos Energy Enterprises' mission to deliver reliable and sustainable power storage solutions. The Chief Legal Officer & Corporate Secretary's guidance is essential for navigating the complex legal landscape of the energy sector.

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    Frequently Asked Questions Regarding Eos Energy Enterprises Top Executives and Leadership Team

    Who leads Eos Energy Enterprises?
    Eos Energy Enterprises is led by Joseph Mastrangelo (Chief Executive Officer), along with executives such as John Mahaz (Chief Operating Officer) and Francis Richey (Chief Technology Officer).
    Who is part of Eos Energy Enterprises’s executive team?
    The executive team of Eos Energy Enterprises includes leaders such as Joseph Mastrangelo (Chief Executive Officer), John Mahaz (Chief Operating Officer), Francis Richey (Chief Technology Officer) and other senior executives.
    How many executives does Eos Energy Enterprises have?
    Eos Energy Enterprises has 4 executives leading key business areas.
    What roles are included in Eos Energy Enterprises’s leadership team?
    The leadership team of Eos Energy Enterprises includes roles such as Chief Executive Officer, Chief Operating Officer, Chief Technology Officer, Chief Legal Officer & Corporate Secretary.