Trigon | Kleinfelder offers all levels of geotechnical engineering, evaluations and investigations for a broad range of soil, rock and complex geologic conditions. Our team of professionals has extensive knowledge of soil and geologic conditions in the Southeastern United Sates. This knowledge allows us to tailor our investigative and test procedures to provide cost effective geotechnical and testing services. Trigon | Kleinfelder's staff has worked with many of the regional earthwork and general contractors to solve an array of construction problems.