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Our Clients.
Your Business is our Business! ESI is focused on knowing about your business. At ESI, we feel like we need to know your business – so we can better understand how to help you solve your problems. Check out some of our industry focuses and expertise’s.
Commercial Healthcare Education Biotech Telecom Government
ESI has performed work for commercial buildings ranging in size to 1 million square feet. We also design, install and service systems for smaller buildings under one-hundred thousand square feet. We can undertake projects both large and small - including design build, plan/spec, and direct owner facilities.
ESI has installed DDC Systems in many of the regional hospital campuses, some with both HVAC controls and integrated access control. Our experienced staff has worked with performance-contracting teams in hospitals across the nation.

ESI provides services such as isolation room controls, power monitoring, graphical displays, alarming and custom reporting. What critical needs do you have?
ESI performs work in many local school districts, two of the nation's largest (13th and 17th), and has installed hundreds of systems. ESI-installed DDC Systems are in every type of school facility, from admin buildings and small elementary schools to large high school.
ESI has installed DDC controls and integrated access control systems in laboratory facilities across our service are. We also service and maintain integrated access control and monitoring systems for Biotech companies along the tech corridors of Northen Virginia and Maryland.
ESI installes and maintains DDC system for many telecom customers. ESI has installed DDC systems in over 125 major telecom client facilities. We work coast-to-coast for some of the nation's largest companies in the industry including Verzizon, AT&T, Sprint and others.

ESI has installed DDC systems for all sectors of government, an local, state and federal levels. ESI has also installed DDC systems in courthouses, correctional facilities, NIH, GSA, ATF in critical and non-critical facilities.