About EnerSys®

EnerSys is a global leader in stored energy solutions for industrial, infrastructure, and defense applications, serving customers around the world for more than 100 years. A publicly traded company with nearly 10,000 employees across four continents, EnerSys is headquartered in Reading, Pennsylvania, with additional regional headquarters in Europe, the Middle East and Africa, and Asia. Our global manufacturing, service, and distribution network supports more than 10,000 customers in over 100 countries.


At EnerSys, we believe the challenge facing many industries is simple: demand for power is growing faster than access to it. Our purpose extends beyond building batteries and energy systems. We help customers address critical power and operational challenges through integrated solutions that combine energy storage technologies, power electronics, software-enabled intelligence, technical expertise, and global support services. By delivering reliable, efficient, and resilient power solutions, we help keep essential industries moving, critical infrastructure connected, and mission-critical operations running wherever power continuity matters most.

 

Sustainability REPORT FY2026 - PDF DOWNLOAD

POWERING WHAT MATTERS MOST

As demand for power continues to grow across communications networks, data centers, energy infrastructure, material handling, transportation, aerospace and defense, reliable access to energy has become increasingly critical. EnerSys helps customers address this challenge by improving energy availability, enhancing operational resilience, and supporting the efficient management of power in mission-critical environments.

Innovation, quality, and safety remain fundamental to our approach. We continue to invest in research, product development, testing, and compliance to deliver reliable solutions for some of the world's most demanding applications. To uphold the highest standards, we maintain rigorous certifications across multiple industries, including AS9100 for aerospace, ISO 13485 for medical devices, ISO 26262 for lithium-ion motive power, and TL9000 for telecommunications.

 

OUR PORTFOLIO OF SOLUTIONS

BUSINESS AND TRADE ASSOCIATIONS

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EnerSys is proud to be associated with the following organizations

 

See our industry associations

Sustainability Update FY2026

Learn how EnerSys is contributing to building a sustainable future