Materials Testing Consultants, Inc. (MTC) specializes in geotechnical engineering, construction materials engineering and tes ... ting, and environmental consulting. MTC was founded in 1968 by Raymond P. Elliott, P.E., and has earned a reputation in engineering innovations that provide reliable and cost effective solutions. We regularly team with municipalities, state agencies, architects, developers and private clients by applying our skills and knowledge of the engineering challenges and solutions. We provide service to our clients from both our West Michigan Office in Grand Rapids Michigan and our Southeast Michigan Office in Ann Arbor Michigan; our services cover the entire Great Lakes Region. read more