Joe Mastrangelo is driven by a vision of energy abundance as the foundation of human progress.
Joe joined Eos Energy Enterprises as Chief Executive Officer in 2019, bringing three decades of leadership across the global energy sector. His career spans technology innovation, industrial manufacturing at scale, and worldwide commercial deployment—providing the rare, end-to-end perspective required to steer energy systems from laboratory breakthroughs into real-world impact.
Throughout his career, Joe has worked to build cultures that nurture the unconventional thinkers and committed doers needed to tackle problems others consider impossible. Whether integrating complex organizations or building teams from the ground up, Joe recognizes that people are the key to success and strives to create environments where bold ideas are matched by disciplined execution.
Before joining Eos, Joe served as CEO of GE’s Power Conversion business and as President and CEO of Gas Power Systems for GE Power, leading global operations of more than 15,000 employees across 60+ countries. These roles reinforced a conviction central to his vision: revitalizing America’s ability to design and manufacture physical, industrial-scale technologies is critical—not only to economic competitiveness, but to addressing the world’s greatest challenges.
At Eos, Joe is translating that conviction into action. The company is rebuilding U.S. manufacturing capacity to produce breakthrough zinc-based, high-density battery energy storage at gigawatt scale—creating American jobs while delivering technology the world urgently needs. He also serves on the Pittsburgh AI Strike Team 2.0 Board, helping connect advanced manufacturing with artificial intelligence to accelerate innovation and reclaim the region’s historic industrial leadership.