Terracon is a leading provider of engineering consulting services in the United States. The company was founded in 1965 and has since grown to employ over 5,000 people in more than 150 offices across the country. Terracon offers a wide range of services, including geotechnical engineering, environmental consulting, construction materials testing, and facilities engineering. The company is committed to providing high-quality services to its clients while also promoting sustainability and environmental responsibility. Terracon is a privately held company and is headquartered in Olathe, Kansas.