Eos Energy Enterprises Executive and Leadership Team

Joe Mastrangelo, the Chief Executive Officer at Eos Energy Enterprises, directs the overarching corporate strategy and long-term vision for the organization. By prioritizing the commercialization of Znyth aqueous zinc battery technology, Mastrangelo drives the company toward market leadership in the energy storage sector. This executive oversees high-level interactions with investors and the Board to ensure financial health and operational scalability. Through the expansion of manufacturing capabilities within the United States, the Chief Executive Officer secures a competitive advantage against conventional lithium-ion providers. Joe Mastrangelo maintains a focus on delivering reliable 3- to 12-hour storage solutions to utility and commercial clients across North American markets. By fostering innovation and operational excellence, the Chief Executive Officer positions the firm as a critical player in the global shift toward sustainable power systems, ensuring consistent growth and long-term value creation for all stakeholders involved in the clean energy transition.

John Mahaz, the Chief Operating Officer at Eos Energy Enterprises, manages the end-to-end supply chain and production logistics required to scale Znyth battery manufacturing. By optimizing internal workflows and facility operations, Mahaz ensures the efficient delivery of energy storage systems to meet growing utility demand. The Chief Operating Officer coordinates cross-functional teams to streamline assembly processes, reducing costs while maintaining high quality standards for all commercial units. John Mahaz oversees the implementation of operational strategies that support rapid market expansion across North America. This leadership role involves managing vendor relationships and production capacity to ensure consistent product availability for industrial and commercial clients. By focusing on operational efficiency and resource allocation, the Chief Operating Officer drives the company toward achieving its production targets. Mahaz maintains a rigorous approach to manufacturing excellence, ensuring that every storage solution meets the specific reliability requirements of the modern energy grid while supporting the overall growth trajectory of the organization.

Francis Richey, the Chief Technology Officer at Eos Energy Enterprises, architects the technical roadmap for the proprietary aqueous zinc battery platform. By managing research and development initiatives, Richey ensures the continuous improvement of energy density, safety, and cycle life for Znyth systems. The Chief Technology Officer collaborates with engineering teams to refine manufacturing processes, enabling the production of scalable storage solutions that outperform traditional lithium-ion alternatives. Francis Richey oversees the integration of advanced materials science into commercial products, directly impacting the efficiency of utility-scale energy deployments. This leadership role involves monitoring global technological trends to maintain a distinct competitive edge in the energy storage market. By driving innovation in battery chemistry and system design, the Chief Technology Officer supports the company mission of providing reliable, sustainable power alternatives. Richey ensures that technical milestones align with broader corporate objectives, facilitating the successful delivery of high-performance energy storage systems to industrial and residential customers.

Marie Martin, the Chief Legal Officer at Eos Energy Enterprises, directs all corporate governance, regulatory compliance, and intellectual property protection strategies. By safeguarding the proprietary Znyth technology, Martin ensures the company maintains a secure market position against competitors in the energy storage industry. The Chief Legal Officer manages complex contractual negotiations with utility partners and industrial customers, facilitating the successful deployment of large-scale energy projects. Marie Martin oversees the legal framework for international operations, ensuring adherence to regional energy regulations and environmental standards. This leadership role involves advising the executive team on risk management and corporate policy to support sustainable business practices. By providing strategic legal counsel, the Chief Legal Officer enables the firm to navigate the evolving landscape of clean energy policy and commercial law. Martin ensures that all corporate activities align with regulatory requirements, protecting the long-term interests of the organization while fostering a culture of transparency and ethical conduct throughout the enterprise.