ESI Electrical Contractors provides a diverse scope of electrical construction services across Ohio and the surrounding regio ... n. Headquartered in Cincinnati, ESI Electrical has deep experience in numerous market areas, including health care, stadiums, historical, industrial and institutional. We also have offices in Cleveland, Columbus, and Dayton. Our team of experts offers design/assist and project management services, bringing added value and understanding to our customers’ projects. Wagner Industrial Electric, a division of ESI located in Dayton, performs commercial and industrial electrical construction for a variety of customers, including automotive manufacturers and energy generation facilities. ESI Electrical joined MDU Construction Services Group, Inc., an MDU Resources Group, Inc. company, in September 2002. As a subsidiary of MDU Construction Services Group, ESI Electrical has substantial financial backing from one of the most successful energy and construction services companies in the nation. read more