On May 30, 2014 Yaggy Colby Associates (YCA) merged with Short Elliott Hendrickson Inc. (SEH®). SEH is an employee-owned prof ... essional services company made up of engineers, architects, planners and scientists and headquartered in St. Paul, Minn. Founded in 1927, SEH serves government, industrial, and commercial clients in the buildings, infrastructure, environmental, energy, transportation and water markets. SEH’s 700 employee-owners share a common purpose: Building a Better World for All of Us®. This approach reflects a company-wide commitment to improving quality of life by designing safer, more sustainable infrastructure for local, state and federal units of government, and helping industrial and commercial clients achieve their business goals. Learn more at sehinc.com. read more