Cochran is an established, multi-location civil, survey, geotechnical and architectural company, currently ranked among Largest Engineering Firms in the St. Louis area by the St. Louis Business Journal. With 60 years’ experience, we are dedicated to building long-lasting client relationships and have an outstanding reputation for superior customer service. Servicing both the public and private markets, the Cochran team provides transportation, water, wastewater, stormwater, site development, architecture, survey and construction administration design and services. Offices are located in St. Louis, Union, Farmington, Ozark, Osage Beach and Wentzville Missouri