About Us

When you need electrical products and solutions, we're ready to respond.

Professionally Managed

At ISG, all projects are professionally managed from quotation to order entry, submittal, design and production to testing and delivery. We encourage creative problem-solving to ensure every control solution is customized to meet or exceed your needs. Our goal is to obtain the highest level of customer satisfaction possible and provide the highest quality product available in the industry.

About ISG

Formed in 1996, ISG has become the leading manufacturer of electrical control systems, growing into one of the largest control panel manufacturing companies in the country. ISG supplies products across a very broad customer base, both nationally and international, carrying both the seal of the Underwriters Laboratories (UL) and CE certifications.

ISG is part of MDU Construction Services Group, which is owned by MDU Resources Group. MDU Resources Group provides essential products and services through two lines of business: regulated energy delivery and construction materials and services. The company has been traded on the New York Stock Exchange since 1948 (NYSE: MDU).

MDU Construction Services Group has locations in 18 states and is licensed to operate in 40+ states. We work with our sister companies across the country to meet our clients’ needs, wherever they may be.