Professional Engineering Consultants (PEC) is a multidisciplinary engineering firm that provides a wide range of services, including civil engineering, structural engineering, mechanical engineering, electrical engineering, and environmental engineering. The company was founded in 1965 by a group of engineers in Wichita, Kansas. PEC has since grown to become one of the largest engineering firms in the Midwest, with offices in Kansas, Oklahoma, and Texas. The company has worked on a variety of projects, including highways, bridges, airports, water treatment plants, and commercial buildings. As of 2020, PEC has over 300 employees and generates over $50 million in annual revenue.