EST is a rapidly growing multidisciplinary engineering firm with office in Oklahoma, Texas and Colorado.  EST provides a dynamic and exciting environment and is dedicated to collaborative and responsive client service. We are committed to upholding our core values of honesty, integrity and professionalism to the highest degree. From designing roads and bridges to providing surveys, environmental site assessments, construction management, geotechnical services, material testing, traffic studies, and site designs. We have broken down the process of providing a variety of engineering services into specialized divisions and are proud to offer our clients the most comprehensive engineering services conveniently available at one firm. For more information visit: