More About GSI

We have seven Midwest offices: Wichita, Manhattan, Kansas City, and Salina, Kansas; Omaha and Grand Island, Nebraska; and Des Moines, Iowa. In addition to completing work in these states, GSI has served customers in Missouri, Oklahoma, Arkansas, Colorado, Minnesota, Illinois, and South Dakota. Our clients include agri-business; municipalities; developers and contractors; construction, utility, manufacturing, and petroleum companies; financial institutions; and federal and state government organizations.