EDSI, a certified MBE/DBE firm, has built a reputation for excellence by providing project engineering, design, and survey services that fulfill the expectations of our clients and the prime consultants with whom we team. We take pride in our strong work ethic and our record of successful delivery of cost-effective on-schedule projects. Since our inception in 1995, EDSI has successfully completed more than 2,000 projects in Missouri and Illinois. Our team has extensive experience delivering transportation projects, including bridges, roadways, traffic studies, traffic signals, water resources, trails, sidewalks, and site design, as well as construction inspection and management. Our dedicated and diverse professionals, detailed quality control plan, and client satisfaction program enable the successful completion of every project we undertake.