Our goal is to improve the strength and reliability of your systems. Together, we will find the best ways to boost efficiency, allocate resources wisely, and maximize savings while generating revenue.

With over 350 employees in 30+ states, we are well-positioned to help you achieve your energy efficiency, resiliency, and sustainability goals. We are headquartered in Newburgh, Indiana, and …

Blog Contact Us Contact Energy Systems Group Corporate headquarters 9877 Eastgate Court, Newburgh, IN 47630 Phone: 812.471.5000 Fax: 812.475.2544

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Energy Systems Group is a place where you can make a lasting impact—for our clients, your community, your family, friends, co-workers, neighbors, and even yourself.

The Town of Niskayuna, New York partnered with Energy Systems Group (ESG), a leading energy services provider, to serve as the prime contractor of a multiyear project that included improvements …

Meet the energy experts, engineers, and construction professionals who will advocate for your goals.

We were founded in 1994 with a vision to help our clients achieve their energy efficiency, resiliency, infrastructure, and sustainability goals. From the start, we set ourselves apart in our approach as a …

Nov 4, 2025 · When you partner with Energy Systems Group, you have access to an entire team of experienced energy efficiency consultants, renewable energy consultants, energy conservation …

Celebrate the opening of Energy Systems Group’s new corporate headquarters in Newburgh, Indiana. The innovative office space reflects ESG’s commitment to energy efficiency and sustainability, …