Sanitary District of Decatur

CSD Environmental Services is a full-service civil and environmental engineering and contracting firm based in central Illinois, with additional offices in St. Louis and Chicago. With over two decades of experience, CSD specializes in a wide range of services including environmental site assessments, underground storage tank removal, soil sampling, and heavy-highway construction. As a prequalified contractor with IDOT and MoDOT, CSD is certified as a DBE and offers comprehensive and cost-effective civil engineering, environmental engineering, land surveying, and environmental management services. Their expertise and integrated approach make them a unique resource for solving multi-faceted civil and environmental challenges throughout Illinois, Iowa, and Missouri.Generated from the website

Hanson Professional Services is an employee-owned consulting firm that specializes in providing architecture, engineering, scientific and program management services to clients around the world. From design to construction, Hanson focuses on each stage of a project and each client s goals, budgets and timelines. In addition, more than half of its $44 million annual revenue is generated from transportation-related projects. These projects include highway and bridge design, traffic planning and airport development. And while transportation is an important part of its business, the company also focuses on designing a variety of buildings and facilities, including offices and industrial complexes, schools and universities, communications and electronic facilities and radio broadcast stations.