Architecture + Engineering Services in Sioux Falls, SD

Sioux Falls is recognized as one of the fastest growing cities in the United States, with a population of over 210,000 and an annual growth rate of 2.79%.

In 2023, ISG celebrates its 50th anniversary milestone. An architecture, engineering, environmental, and planning firm, ISG has 13 offices positioned throughout the Midwest and serves clients nationwide. Throughout the year, ISG hosted a series of anniversary events to show our appreciation for the communities, clients, partners, and employee owners who have supported the mission of making a difference.

Based in the Sioux Falls office, Project Management Practice Group Leader Tiara Marcus has been a part of the ISG team for over a year. With her engineering background and hands-on experience, she brings an in-depth knowledge of best practices and efficiencies for project teams.