ERS is a progressive energy engineering and consulting firm based in Haverhill, Massachusetts with additional offices in New York, Maine, and Texas. Our experienced staff is made up of Certified Energy Managers (CEMs), Professional Engineers (PEs), and LEED Accredited Professionals (LEED APs). We serve clients regionally, nationally, and internationally, and our areas of specialization include assessment and implementation of energy projects; development of analytical tools and database software systems for project energy analysis and utility program management; custom design; technology assessment; industrial process assessment; premium efficiency lighting design; and energy code compliance.
We focus on client needs, developing solutions that reduce costs while simplifying day-to-day operating requirements. Our staff have been involved in some of the largest and most ambitious programs, engineering projects, and research studies addressing energy and resource conservation in the United States.

Our Mission

We aim to achieve a global good that incorporates resource efficiency, economic prosperity, and effective business operations. We believe pursuit of this goal starts with helping our clients reach their own objectives by providing them with our analytical expertise and our ability to think creatively and accomplish tasks in an optimal way. Simply said, we are seekers, thinkers, doers, and teachers.