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 nearly 4,000 skilled employees across the country, MDU Construction Services Group provides industry-leading construction services with a focus on safety.
As 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.