For more than 20 years, our talented and committed crew of project managers, superintendents, engineers, foremen, operators, mechanics, welders, carpenters, and laborers have helped build Montana. Headquartered in Libby, Thompson Contracting, Inc. (TCI) is a heavy civil contractor that provides excavation, road and bridge construction, sewer and water repair, paving and chip sealing, sand/gravel/concrete material, land development, logging, and other heavy civil services statewide.