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 zinc-based battery storage. The Chief Executive Officer manages high-level relationships with utility partners and industrial stakeholders to expand market penetration. By overseeing the transition from research to commercial deployment, Mastrangelo ensures the company maintains a competitive edge in the clean energy sector. This leadership role involves constant coordination with the Board to align manufacturing output with global energy demands. Joe Mastrangelo drives the expansion of domestic production capabilities, ensuring that the organization meets the rigorous safety and durability standards required for grid-scale applications. Through the implementation of robust control platforms, the Chief Executive Officer secures the company's position as a primary provider of sustainable energy infrastructure, ultimately fostering growth across North American and international power markets.

John Mahaz, the Chief Operating Officer at Eos Energy Enterprises, manages the daily execution of manufacturing processes and supply chain logistics. The Chief Operating Officer oversees the production of zinc-based battery systems, ensuring that factory output aligns with commercial deployment schedules. By optimizing internal workflows, Mahaz drives operational efficiency across all domestic manufacturing facilities. This role requires constant collaboration with engineering teams to refine product architecture and maintain high quality standards for industrial energy storage. John Mahaz monitors the performance of control platforms to guarantee that every unit meets the specific requirements of utility and commercial clients. Through the management of project support services, the Chief Operating Officer ensures that customers receive reliable, long-term energy solutions. Mahaz maintains a focus on scaling production capacity to meet the rising demand for safer, more durable alternatives to conventional lithium-ion battery systems in the global energy market.

Francis Richey, the Chief Technology Officer at Eos Energy Enterprises, architects the proprietary battery chemistry and advanced control platforms that define the company's product portfolio. The Chief Technology Officer leads research and development initiatives to enhance the safety and durability of zinc-based energy storage systems. By overseeing the technical design of grid-scale solutions, Richey ensures that all hardware meets the evolving needs of industrial and utility power applications. This leadership role involves constant collaboration with manufacturing teams to integrate new innovations into the production line. Francis Richey drives the development of software extensions that optimize the performance of deployed battery systems. Through the continuous refinement of energy storage technology, the Chief Technology Officer secures the company's technical leadership in the clean energy sector. Richey manages the intellectual property portfolio and technical roadmap, ensuring that the organization remains at the forefront of sustainable power innovation.

Marie Martin, the Chief Legal Officer at Eos Energy Enterprises, manages all corporate governance, regulatory compliance, and intellectual property protection. The Chief Legal Officer oversees the legal framework surrounding the manufacturing and commercial deployment of zinc-based battery systems. By providing strategic counsel to the executive team, Martin ensures that all business operations align with federal and state energy regulations. This role involves negotiating complex contracts with utility partners and industrial clients to support the company's growth objectives. Marie Martin drives the protection of proprietary battery chemistry and control platform innovations through rigorous patent management. Through the mitigation of legal risks, the Chief Legal Officer supports the stability of the organization's market position. Martin coordinates with external counsel to address international trade requirements, ensuring that the company maintains a compliant and secure operational footprint while delivering advanced energy storage solutions to a diverse range of commercial and local power applications.