About ESI


Supporting our communities

ESI supports the communities in which our employees live and work, through projects such as the renovation of the historic Meinken Field in Covington, Kentucky. ESI donated labor, installing all new electrical infrastructure for the field.

ESI Electrical Contractors

Founded in 1966, ESI Electrical Contractors, Inc. provides industry-leading electrical construction services across Ohio and the surrounding region. Our expertise in design/assist, estimating and preconstruction helps us exceed our customers’ expectations by safely completing projects on time and within budget. We have deep project experience in a variety of markets, including commercial, government, health care, education and sustainable construction.


Our parent company

ESI Electrical Contractors, Inc. was purchased by MDU Construction Services Group, Inc. in 2002. With authorization to work in 47 states and more than 5,000 skilled employees across the country, MDU Construction Services Group provides industry-leading construction services with a focus on safety.

CSG-LocationMap-2-1-16As part of a construction services company with operations and crews across the nation, ESI has access to added resources and financial strength, as well as national buying power. We use these resources to secure the best pricing possible for our clients.

MDU Construction Services Group is part of MDU Resources Group, Inc., a major natural resources company that provides value-added natural resource products and related services that are essential to energy and transportation infrastructure. The company has been traded on the New York Stock Exchange since 1948 under the symbol MDU.