CANTON—May 19, 2026—IES Infrastructure Solutions, a wholly owned subsidiary of IES Holdings, Inc. (“IES”) (NASDAQ: IESC), announced today that it has acquired a steel fabrication plant in Abilene, TX, consisting of a 176,000 square feet facility located on approximately 48 acres of land, together with the related machinery and equipment and members of the onsite workforce. This new Abilene plant will operate under the Freeman Enclosure Systems name, focusing on generator related products including sound attenuated enclosures, diesel fuel tanks and exhaust plenums.

Mike Rice, President of IES’s Infrastructure Solutions segment, said, “The addition of this Abilene plant strategically expands our geographic footprint and adds significant capacity to support generator enclosure and related products manufacturing, where we see significant growth potential.

Combined with our existing fabrication plants in Ohio, Oklahoma, Louisiana, Pennsylvania and Wisconsin we have established over 3,100,000 square feet of fabrication space to meet the evolving needs of our customers. We’re excited about the opportunities the Abilene facility offers to expand our capabilities.”

About IES Holdings, Inc.

IES designs and installs integrated electrical and technology systems and provides infrastructure products and services to a variety of end markets, including data centers, residential housing, and commercial and industrial facilities. Our more than 11,000 employees serve clients in the United States. For more information about IES, please visit www.ies-co.com.

About IES Infrastructure Solutions

IES’s Infrastructure Solutions segment is a provider of electro-mechanical solutions for industrial operations, including apparatus repair and custom-engineered products, such as generator enclosures and bus duct, used in data centers and other industrial applications. For more information about IES Infrastructure Solutions, please visit https://iesinfrastructure.com.