Started in 1963, Reitz & Jens Inc. serves as a consulting engineering firm. Based in St Louis, Mo., the firm specializes in offering a range of services that include geotechnical, water resources and environmental engineering as well as construction quality control. It has completed more than 10,000 building, site development, stormwater, floodplain management and infrastructure projects throughout the Midwest. The firm caters to a number of clients, such as public agencies, engineers, architects, contractors, developers and private owners.