Cy Schwieterman Inc. was established in 1946. We are a full service drainage and excavation contractor with 3 locations to serve you!Cy Schwieterman, Inc. (CSI) started as a family business in 1946 Cy Schwieterman began installing drain tiles with his father, Ed in southern Mercer and northern Darke counties from their Burkettsville family farm with a 1920 Buckeye #1 digging machine with road speed of 1.5 miles per hour.