Best Engineers in Collinsville, IL

Quickly connect with the top engineering companies and consultants serving Collinsville, IL. Read reviews from verified customers. Post your requirements and get no obligation estimates.

Since our foundation in 1995, Engineering Design Source Inc. (EDSI) has completed more than 2,000 civil engineering and surveying projects in the Bi-State area. EDSI has a team of 30+ engineers, surveyors, construction inspectors, and technicians working from our Chesterfield, Missouri headquarters and office in Collinsville, Illinois. Our staff includes