ISG was recognized as one of the country’s leading design firms by Engineering News-Record (ENR) magazine’s annual industry rankings. The Top 500 Design Firms list ranks the largest United States based design firms, both publicly and privately held, based on design-specific revenue. ISG, a firm founded in Mankato, Minnesota and has grown to eight offices in three states with clients nationwide, is ranked at 452 in the 2016 list, surpassing last year’s rank of 488.
View the list at: http://www.enr.com/toplists/2016_Top_500_Design_Firms5


R.E. Warner & Associates has been named a Northeast Ohio Top Workplace for the fifth consecutive year, recognizing its commitment to employee engagement, workplace culture, and professional excellence.

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ISG’s Martin County Ditch No. 28 Nutrient Treatment Train project has received two honors: the 2026 ACEC Minnesota Engineering Excellence Grand Award and the ACEC National Engineering Excellence Award, recognizing innovative engineering solutions that improve drainage performance while protecting water quality.
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The Spring 2026 Educational Facilities Design Awards, presented by Learning By Design, honors education projects that demonstrate design excellence, innovation, and meaningful impact on student experience, with recipients selected through a blind peer review process from 52 submissions.